diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-01 18:24:44 -0700 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-10-01 18:24:44 -0700 |
commit | 11801e9de26992d37cb869cc74f389b6a7677e0e (patch) | |
tree | 322b7ea2b475d52da27d3e01f5bc2992bb708d59 /arch/arm/mach-tegra | |
parent | 1a58ddfc0fcf3d83a92573c71771962f9b218993 (diff) | |
parent | b6e3b5c2fea9c76617e101cbbc54ed14961f9dee (diff) |
Merge tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM soc-specific updates from Olof Johansson:
"Most notable here is probably the addition of basic support for the
BCM2835, an SoC used in some of the Roku 2 players as well as the
much-hyped Raspberry Pi, cleaned up and contributed by Stephen Warren.
It's still early days on mainline support, with just the basics
working. But it has to start somewhere!
Beyond that there's some conversions of clock infrastructure on tegra
to common clock, misc updates for several other platforms, and OMAP
now has its own bus (under drivers/bus) to manage its devices through.
This branch adds two new directories outside of arch/arm:
drivers/irqchip for new irq controllers, and drivers/bus for the above
OMAP bus. It's expected that some of the other platforms will migrate
parts of their platforms to those directories over time as well."
Fix up trivial conflicts with the clk infrastructure changes.
* tag 'soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (62 commits)
ARM: shmobile: add new __iomem annotation for new code
ARM: LPC32xx: Support GPI 28
ARM: LPC32xx: Platform update for devicetree completion of spi-pl022
ARM: LPC32xx: Board cleanup
irqchip: fill in empty Kconfig
ARM: SAMSUNG: Add check for NULL in clock interface
ARM: EXYNOS: Put PCM, Slimbus, Spdif clocks to off state
ARM: EXYNOS: Add bus clock for FIMD
ARM: SAMSUNG: Fix HDMI related warnings
ARM: S3C24XX: Add .get_rate callback for "camif-upll" clock
ARM: EXYNOS: Fix incorrect help text
ARM: EXYNOS: Turn off clocks for NAND, OneNAND and TSI controllers
ARM: OMAP: AM33xx hwmod: fixup SPI after platform_data move
MAINTAINERS: add an entry for the BCM2835 ARM sub-architecture
ARM: bcm2835: instantiate console UART
ARM: bcm2835: add stub clock driver
ARM: bcm2835: add system timer
ARM: bcm2835: add interrupt controller driver
ARM: add infra-structure for BCM2835 and Raspberry Pi
ARM: tegra20: add CPU hotplug support
...
Diffstat (limited to 'arch/arm/mach-tegra')
22 files changed, 5592 insertions, 4862 deletions
diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile index 191d973122a5..77b19707be2a 100644 --- a/arch/arm/mach-tegra/Makefile +++ b/arch/arm/mach-tegra/Makefile @@ -12,9 +12,13 @@ obj-y += powergate.o obj-y += apbio.o obj-$(CONFIG_CPU_IDLE) += cpuidle.o obj-$(CONFIG_CPU_IDLE) += sleep.o -obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra2_clocks.o +obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20_clocks.o +obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20_clocks_data.o obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra2_emc.o +obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += sleep-t20.o obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += tegra30_clocks.o +obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += tegra30_clocks_data.o +obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += sleep-t30.o obj-$(CONFIG_SMP) += platsmp.o headsmp.o obj-$(CONFIG_SMP) += reset.o obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o diff --git a/arch/arm/mach-tegra/board-dt-tegra20.c b/arch/arm/mach-tegra/board-dt-tegra20.c index 37007d60bc37..5957ffbd4af6 100644 --- a/arch/arm/mach-tegra/board-dt-tegra20.c +++ b/arch/arm/mach-tegra/board-dt-tegra20.c @@ -70,6 +70,7 @@ struct of_dev_auxdata tegra20_auxdata_lookup[] __initdata = { static __initdata struct tegra_clk_init_table tegra_dt_clk_init_table[] = { /* name parent rate enabled */ + { "uarta", "pll_p", 216000000, true }, { "uartd", "pll_p", 216000000, true }, { "usbd", "clk_m", 12000000, false }, { "usb2", "clk_m", 12000000, false }, diff --git a/arch/arm/mach-tegra/clock.c b/arch/arm/mach-tegra/clock.c index 58f981c0819c..fd82085eca5d 100644 --- a/arch/arm/mach-tegra/clock.c +++ b/arch/arm/mach-tegra/clock.c @@ -1,6 +1,7 @@ /* * * Copyright (C) 2010 Google, Inc. + * Copyright (c) 2012 NVIDIA CORPORATION. All rights reserved. * * Author: * Colin Cross <ccross@google.com> @@ -19,8 +20,6 @@ #include <linux/kernel.h> #include <linux/clk.h> #include <linux/clkdev.h> -#include <linux/debugfs.h> -#include <linux/delay.h> #include <linux/init.h> #include <linux/list.h> #include <linux/module.h> @@ -32,325 +31,75 @@ #include "board.h" #include "clock.h" +#include "tegra_cpu_car.h" + +/* Global data of Tegra CPU CAR ops */ +struct tegra_cpu_car_ops *tegra_cpu_car_ops; /* * Locking: * - * Each struct clk has a spinlock. - * - * To avoid AB-BA locking problems, locks must always be traversed from child - * clock to parent clock. For example, when enabling a clock, the clock's lock - * is taken, and then clk_enable is called on the parent, which take's the - * parent clock's lock. There is one exceptions to this ordering: When dumping - * the clock tree through debugfs. In this case, clk_lock_all is called, - * which attemps to iterate through the entire list of clocks and take every - * clock lock. If any call to spin_trylock fails, all locked clocks are - * unlocked, and the process is retried. When all the locks are held, - * the only clock operation that can be called is clk_get_rate_all_locked. - * - * Within a single clock, no clock operation can call another clock operation - * on itself, except for clk_get_rate_locked and clk_set_rate_locked. Any - * clock operation can call any other clock operation on any of it's possible - * parents. - * * An additional mutex, clock_list_lock, is used to protect the list of all * clocks. * - * The clock operations must lock internally to protect against - * read-modify-write on registers that are shared by multiple clocks */ static DEFINE_MUTEX(clock_list_lock); static LIST_HEAD(clocks); -struct clk *tegra_get_clock_by_name(const char *name) -{ - struct clk *c; - struct clk *ret = NULL; - mutex_lock(&clock_list_lock); - list_for_each_entry(c, &clocks, node) { - if (strcmp(c->name, name) == 0) { - ret = c; - break; - } - } - mutex_unlock(&clock_list_lock); - return ret; -} - -/* Must be called with c->spinlock held */ -static unsigned long clk_predict_rate_from_parent(struct clk *c, struct clk *p) -{ - u64 rate; - - rate = clk_get_rate(p); - - if (c->mul != 0 && c->div != 0) { - rate *= c->mul; - rate += c->div - 1; /* round up */ - do_div(rate, c->div); - } - - return rate; -} - -/* Must be called with c->spinlock held */ -unsigned long clk_get_rate_locked(struct clk *c) -{ - unsigned long rate; - - if (c->parent) - rate = clk_predict_rate_from_parent(c, c->parent); - else - rate = c->rate; - - return rate; -} - -unsigned long clk_get_rate(struct clk *c) +void tegra_clk_add(struct clk *clk) { - unsigned long flags; - unsigned long rate; - - spin_lock_irqsave(&c->spinlock, flags); - - rate = clk_get_rate_locked(c); - - spin_unlock_irqrestore(&c->spinlock, flags); - - return rate; -} -EXPORT_SYMBOL(clk_get_rate); - -int clk_reparent(struct clk *c, struct clk *parent) -{ - c->parent = parent; - return 0; -} - -void clk_init(struct clk *c) -{ - spin_lock_init(&c->spinlock); - - if (c->ops && c->ops->init) - c->ops->init(c); - - if (!c->ops || !c->ops->enable) { - c->refcnt++; - c->set = true; - if (c->parent) - c->state = c->parent->state; - else - c->state = ON; - } + struct clk_tegra *c = to_clk_tegra(__clk_get_hw(clk)); mutex_lock(&clock_list_lock); list_add(&c->node, &clocks); mutex_unlock(&clock_list_lock); } -int clk_enable(struct clk *c) -{ - int ret = 0; - unsigned long flags; - - spin_lock_irqsave(&c->spinlock, flags); - - if (c->refcnt == 0) { - if (c->parent) { - ret = clk_enable(c->parent); - if (ret) - goto out; - } - - if (c->ops && c->ops->enable) { - ret = c->ops->enable(c); - if (ret) { - if (c->parent) - clk_disable(c->parent); - goto out; - } - c->state = ON; - c->set = true; - } - } - c->refcnt++; -out: - spin_unlock_irqrestore(&c->spinlock, flags); - return ret; -} -EXPORT_SYMBOL(clk_enable); - -void clk_disable(struct clk *c) -{ - unsigned long flags; - - spin_lock_irqsave(&c->spinlock, flags); - - if (c->refcnt == 0) { - WARN(1, "Attempting to disable clock %s with refcnt 0", c->name); - spin_unlock_irqrestore(&c->spinlock, flags); - return; - } - if (c->refcnt == 1) { - if (c->ops && c->ops->disable) - c->ops->disable(c); - - if (c->parent) - clk_disable(c->parent); - - c->state = OFF; - } - c->refcnt--; - - spin_unlock_irqrestore(&c->spinlock, flags); -} -EXPORT_SYMBOL(clk_disable); - -int clk_set_parent(struct clk *c, struct clk *parent) -{ - int ret; - unsigned long flags; - unsigned long new_rate; - unsigned long old_rate; - - spin_lock_irqsave(&c->spinlock, flags); - - if (!c->ops || !c->ops->set_parent) { - ret = -ENOSYS; - goto out; - } - - new_rate = clk_predict_rate_from_parent(c, parent); - old_rate = clk_get_rate_locked(c); - - ret = c->ops->set_parent(c, parent); - if (ret) - goto out; - -out: - spin_unlock_irqrestore(&c->spinlock, flags); - return ret; -} -EXPORT_SYMBOL(clk_set_parent); - -struct clk *clk_get_parent(struct clk *c) -{ - return c->parent; -} -EXPORT_SYMBOL(clk_get_parent); - -int clk_set_rate_locked(struct clk *c, unsigned long rate) -{ - long new_rate; - - if (!c->ops || !c->ops->set_rate) - return -ENOSYS; - - if (rate > c->max_rate) - rate = c->max_rate; - - if (c->ops && c->ops->round_rate) { - new_rate = c->ops->round_rate(c, rate); - - if (new_rate < 0) - return new_rate; - - rate = new_rate; - } - - return c->ops->set_rate(c, rate); -} - -int clk_set_rate(struct clk *c, unsigned long rate) -{ - int ret; - unsigned long flags; - - spin_lock_irqsave(&c->spinlock, flags); - - ret = clk_set_rate_locked(c, rate); - - spin_unlock_irqrestore(&c->spinlock, flags); - - return ret; -} -EXPORT_SYMBOL(clk_set_rate); - - -/* Must be called with clocks lock and all indvidual clock locks held */ -unsigned long clk_get_rate_all_locked(struct clk *c) +struct clk *tegra_get_clock_by_name(const char *name) { - u64 rate; - int mul = 1; - int div = 1; - struct clk *p = c; - - while (p) { - c = p; - if (c->mul != 0 && c->div != 0) { - mul *= c->mul; - div *= c->div; + struct clk_tegra *c; + struct clk *ret = NULL; + mutex_lock(&clock_list_lock); + list_for_each_entry(c, &clocks, node) { + if (strcmp(__clk_get_name(c->hw.clk), name) == 0) { + ret = c->hw.clk; + break; } - p = c->parent; - } - - rate = c->rate; - rate *= mul; - do_div(rate, div); - - return rate; -} - -long clk_round_rate(struct clk *c, unsigned long rate) -{ - unsigned long flags; - long ret; - - spin_lock_irqsave(&c->spinlock, flags); - - if (!c->ops || !c->ops->round_rate) { - ret = -ENOSYS; - goto out; } - - if (rate > c->max_rate) - rate = c->max_rate; - - ret = c->ops->round_rate(c, rate); - -out: - spin_unlock_irqrestore(&c->spinlock, flags); + mutex_unlock(&clock_list_lock); return ret; } -EXPORT_SYMBOL(clk_round_rate); static int tegra_clk_init_one_from_table(struct tegra_clk_init_table *table) { struct clk *c; struct clk *p; + struct clk *parent; int ret = 0; c = tegra_get_clock_by_name(table->name); if (!c) { - pr_warning("Unable to initialize clock %s\n", + pr_warn("Unable to initialize clock %s\n", table->name); return -ENODEV; } + parent = clk_get_parent(c); + if (table->parent) { p = tegra_get_clock_by_name(table->parent); if (!p) { - pr_warning("Unable to find parent %s of clock %s\n", + pr_warn("Unable to find parent %s of clock %s\n", table->parent, table->name); return -ENODEV; } - if (c->parent != p) { + if (parent != p) { ret = clk_set_parent(c, p); if (ret) { - pr_warning("Unable to set parent %s of clock %s: %d\n", + pr_warn("Unable to set parent %s of clock %s: %d\n", table->parent, table->name, ret); return -EINVAL; } @@ -360,16 +109,16 @@ static int tegra_clk_init_one_from_table(struct tegra_clk_init_table *table) if (table->rate && table->rate != clk_get_rate(c)) { ret = clk_set_rate(c, table->rate); if (ret) { - pr_warning("Unable to set clock %s to rate %lu: %d\n", + pr_warn("Unable to set clock %s to rate %lu: %d\n", table->name, table->rate, ret); return -EINVAL; } } if (table->enabled) { - ret = clk_enable(c); + ret = clk_prepare_enable(c); if (ret) { - pr_warning("Unable to enable clock %s: %d\n", + pr_warn("Unable to enable clock %s: %d\n", table->name, ret); return -EINVAL; } @@ -383,19 +132,20 @@ void tegra_clk_init_from_table(struct tegra_clk_init_table *table) for (; table->name; table++) tegra_clk_init_one_from_table(table); } -EXPORT_SYMBOL(tegra_clk_init_from_table); void tegra_periph_reset_deassert(struct clk *c) { - BUG_ON(!c->ops->reset); - c->ops->reset(c, false); + struct clk_tegra *clk = to_clk_tegra(__clk_get_hw(c)); + BUG_ON(!clk->reset); + clk->reset(__clk_get_hw(c), false); } EXPORT_SYMBOL(tegra_periph_reset_deassert); void tegra_periph_reset_assert(struct clk *c) { - BUG_ON(!c->ops->reset); - c->ops->reset(c, true); + struct clk_tegra *clk = to_clk_tegra(__clk_get_hw(c)); + BUG_ON(!clk->reset); + clk->reset(__clk_get_hw(c), true); } EXPORT_SYMBOL(tegra_periph_reset_assert); @@ -405,268 +155,14 @@ EXPORT_SYMBOL(tegra_periph_reset_assert); int tegra_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting) { int ret = 0; - unsigned long flags; + struct clk_tegra *clk = to_clk_tegra(__clk_get_hw(c)); - spin_lock_irqsave(&c->spinlock, flags); - - if (!c->ops || !c->ops->clk_cfg_ex) { + if (!clk->clk_cfg_ex) { ret = -ENOSYS; goto out; } - ret = c->ops->clk_cfg_ex(c, p, setting); + ret = clk->clk_cfg_ex(__clk_get_hw(c), p, setting); out: - spin_unlock_irqrestore(&c->spinlock, flags); - return ret; } - -#ifdef CONFIG_DEBUG_FS - -static int __clk_lock_all_spinlocks(void) -{ - struct clk *c; - - list_for_each_entry(c, &clocks, node) - if (!spin_trylock(&c->spinlock)) - goto unlock_spinlocks; - - return 0; - -unlock_spinlocks: - list_for_each_entry_continue_reverse(c, &clocks, node) - spin_unlock(&c->spinlock); - - return -EAGAIN; -} - -static void __clk_unlock_all_spinlocks(void) -{ - struct clk *c; - - list_for_each_entry_reverse(c, &clocks, node) - spin_unlock(&c->spinlock); -} - -/* - * This function retries until it can take all locks, and may take - * an arbitrarily long time to complete. - * Must be called with irqs enabled, returns with irqs disabled - * Must be called with clock_list_lock held - */ -static void clk_lock_all(void) -{ - int ret; -retry: - local_irq_disable(); - - ret = __clk_lock_all_spinlocks(); - if (ret) - goto failed_spinlocks; - - /* All locks taken successfully, return */ - return; - -failed_spinlocks: - local_irq_enable(); - yield(); - goto retry; -} - -/* - * Unlocks all clocks after a clk_lock_all - * Must be called with irqs disabled, returns with irqs enabled - * Must be called with clock_list_lock held - */ -static void clk_unlock_all(void) -{ - __clk_unlock_all_spinlocks(); - - local_irq_enable(); -} - -static struct dentry *clk_debugfs_root; - - -static void clock_tree_show_one(struct seq_file *s, struct clk *c, int level) -{ - struct clk *child; - const char *state = "uninit"; - char div[8] = {0}; - - if (c->state == ON) - state = "on"; - else if (c->state == OFF) - state = "off"; - - if (c->mul != 0 && c->div != 0) { - if (c->mul > c->div) { - int mul = c->mul / c->div; - int mul2 = (c->mul * 10 / c->div) % 10; - int mul3 = (c->mul * 10) % c->div; - if (mul2 == 0 && mul3 == 0) - snprintf(div, sizeof(div), "x%d", mul); - else if (mul3 == 0) - snprintf(div, sizeof(div), "x%d.%d", mul, mul2); - else - snprintf(div, sizeof(div), "x%d.%d..", mul, mul2); - } else { - snprintf(div, sizeof(div), "%d%s", c->div / c->mul, - (c->div % c->mul) ? ".5" : ""); - } - } - - seq_printf(s, "%*s%c%c%-*s %-6s %-3d %-8s %-10lu\n", - level * 3 + 1, "", - c->rate > c->max_rate ? '!' : ' ', - !c->set ? '*' : ' ', - 30 - level * 3, c->name, - state, c->refcnt, div, clk_get_rate_all_locked(c)); - - list_for_each_entry(child, &clocks, node) { - if (child->parent != c) - continue; - - clock_tree_show_one(s, child, level + 1); - } -} - -static int clock_tree_show(struct seq_file *s, void *data) -{ - struct clk *c; - seq_printf(s, " clock state ref div rate\n"); - seq_printf(s, "--------------------------------------------------------------\n"); - - mutex_lock(&clock_list_lock); - - clk_lock_all(); - - list_for_each_entry(c, &clocks, node) - if (c->parent == NULL) - clock_tree_show_one(s, c, 0); - - clk_unlock_all(); - - mutex_unlock(&clock_list_lock); - return 0; -} - -static int clock_tree_open(struct inode *inode, struct file *file) -{ - return single_open(file, clock_tree_show, inode->i_private); -} - -static const struct file_operations clock_tree_fops = { - .open = clock_tree_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int possible_parents_show(struct seq_file *s, void *data) -{ - struct clk *c = s->private; - int i; - - for (i = 0; c->inputs[i].input; i++) { - char *first = (i == 0) ? "" : " "; - seq_printf(s, "%s%s", first, c->inputs[i].input->name); - } - seq_printf(s, "\n"); - return 0; -} - -static int possible_parents_open(struct inode *inode, struct file *file) -{ - return single_open(file, possible_parents_show, inode->i_private); -} - -static const struct file_operations possible_parents_fops = { - .open = possible_parents_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static int clk_debugfs_register_one(struct clk *c) -{ - struct dentry *d; - - d = debugfs_create_dir(c->name, clk_debugfs_root); - if (!d) - return -ENOMEM; - c->dent = d; - - d = debugfs_create_u8("refcnt", S_IRUGO, c->dent, (u8 *)&c->refcnt); - if (!d) - goto err_out; - - d = debugfs_create_u32("rate", S_IRUGO, c->dent, (u32 *)&c->rate); - if (!d) - goto err_out; - - d = debugfs_create_x32("flags", S_IRUGO, c->dent, (u32 *)&c->flags); - if (!d) - goto err_out; - - if (c->inputs) { - d = debugfs_create_file("possible_parents", S_IRUGO, c->dent, - c, &possible_parents_fops); - if (!d) - goto err_out; - } - - return 0; - -err_out: - debugfs_remove_recursive(c->dent); - return -ENOMEM; -} - -static int clk_debugfs_register(struct clk *c) -{ - int err; - struct clk *pa = c->parent; - - if (pa && !pa->dent) { - err = clk_debugfs_register(pa); - if (err) - return err; - } - - if (!c->dent) { - err = clk_debugfs_register_one(c); - if (err) - return err; - } - return 0; -} - -int __init tegra_clk_debugfs_init(void) -{ - struct clk *c; - struct dentry *d; - int err = -ENOMEM; - - d = debugfs_create_dir("clock", NULL); - if (!d) - return -ENOMEM; - clk_debugfs_root = d; - - d = debugfs_create_file("clock_tree", S_IRUGO, clk_debugfs_root, NULL, - &clock_tree_fops); - if (!d) - goto err_out; - - list_for_each_entry(c, &clocks, node) { - err = clk_debugfs_register(c); - if (err) - goto err_out; - } - return 0; -err_out: - debugfs_remove_recursive(clk_debugfs_root); - return err; -} - -#endif diff --git a/arch/arm/mach-tegra/clock.h b/arch/arm/mach-tegra/clock.h index bc300657deba..2aa37f5c44c0 100644 --- a/arch/arm/mach-tegra/clock.h +++ b/arch/arm/mach-tegra/clock.h @@ -2,6 +2,7 @@ * arch/arm/mach-tegra/include/mach/clock.h * * Copyright (C) 2010 Google, Inc. + * Copyright (c) 2012 NVIDIA CORPORATION. All rights reserved. * * Author: * Colin Cross <ccross@google.com> @@ -20,9 +21,9 @@ #ifndef __MACH_TEGRA_CLOCK_H #define __MACH_TEGRA_CLOCK_H +#include <linux/clk-provider.h> #include <linux/clkdev.h> #include <linux/list.h> -#include <linux/spinlock.h> #include <mach/clk.h> @@ -52,7 +53,8 @@ #define ENABLE_ON_INIT (1 << 28) #define PERIPH_ON_APB (1 << 29) -struct clk; +struct clk_tegra; +#define to_clk_tegra(_hw) container_of(_hw, struct clk_tegra, hw) struct clk_mux_sel { struct clk *input; @@ -68,47 +70,29 @@ struct clk_pll_freq_table { u8 cpcon; }; -struct clk_ops { - void (*init)(struct clk *); - int (*enable)(struct clk *); - void (*disable)(struct clk *); - int (*set_parent)(struct clk *, struct clk *); - int (*set_rate)(struct clk *, unsigned long); - long (*round_rate)(struct clk *, unsigned long); - void (*reset)(struct clk *, bool); - int (*clk_cfg_ex)(struct clk *, - enum tegra_clk_ex_param, u32); -}; - enum clk_state { UNINITIALIZED = 0, ON, OFF, }; -struct clk { +struct clk_tegra { /* node for master clocks list */ - struct list_head node; /* node for list of all clocks */ + struct list_head node; /* node for list of all clocks */ struct clk_lookup lookup; + struct clk_hw hw; -#ifdef CONFIG_DEBUG_FS - struct dentry *dent; -#endif bool set; - struct clk_ops *ops; - unsigned long rate; + unsigned long fixed_rate; unsigned long max_rate; unsigned long min_rate; u32 flags; const char *name; - u32 refcnt; enum clk_state state; - struct clk *parent; u32 div; u32 mul; - const struct clk_mux_sel *inputs; u32 reg; u32 reg_shift; @@ -144,7 +128,8 @@ struct clk { } shared_bus_user; } u; - spinlock_t spinlock; + void (*reset)(struct clk_hw *, bool); + int (*clk_cfg_ex)(struct clk_hw *, enum tegra_clk_ex_param, u32); }; struct clk_duplicate { @@ -159,13 +144,10 @@ struct tegra_clk_init_table { bool enabled; }; +void tegra_clk_add(struct clk *c); void tegra2_init_clocks(void); void tegra30_init_clocks(void); -void clk_init(struct clk *clk); struct clk *tegra_get_clock_by_name(const char *name); -int clk_reparent(struct clk *c, struct clk *parent); void tegra_clk_init_from_table(struct tegra_clk_init_table *table); -unsigned long clk_get_rate_locked(struct clk *c); -int clk_set_rate_locked(struct clk *c, unsigned long rate); #endif diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c index 96fef6bcc651..0560538bf598 100644 --- a/arch/arm/mach-tegra/common.c +++ b/arch/arm/mach-tegra/common.c @@ -34,6 +34,7 @@ #include "fuse.h" #include "pmc.h" #include "apbio.h" +#include "sleep.h" /* * Storage for debug-macro.S's state. @@ -135,6 +136,7 @@ void __init tegra20_init_early(void) tegra_init_cache(0x331, 0x441); tegra_pmc_init(); tegra_powergate_init(); + tegra20_hotplug_init(); } #endif #ifdef CONFIG_ARCH_TEGRA_3x_SOC @@ -147,11 +149,11 @@ void __init tegra30_init_early(void) tegra_init_cache(0x441, 0x551); tegra_pmc_init(); tegra_powergate_init(); + tegra30_hotplug_init(); } #endif void __init tegra_init_late(void) { - tegra_clk_debugfs_init(); tegra_powergate_debugfs_init(); } diff --git a/arch/arm/mach-tegra/cpu-tegra.c b/arch/arm/mach-tegra/cpu-tegra.c index ceb52db1e2f1..627bf0f4262e 100644 --- a/arch/arm/mach-tegra/cpu-tegra.c +++ b/arch/arm/mach-tegra/cpu-tegra.c @@ -49,6 +49,8 @@ static struct cpufreq_frequency_table freq_table[] = { #define NUM_CPUS 2 static struct clk *cpu_clk; +static struct clk *pll_x_clk; +static struct clk *pll_p_clk; static struct clk *emc_clk; static unsigned long target_cpu_speed[NUM_CPUS]; @@ -71,6 +73,42 @@ static unsigned int tegra_getspeed(unsigned int cpu) return rate; } +static int tegra_cpu_clk_set_rate(unsigned long rate) +{ + int ret; + + /* + * Take an extra reference to the main pll so it doesn't turn + * off when we move the cpu off of it + */ + clk_prepare_enable(pll_x_clk); + + ret = clk_set_parent(cpu_clk, pll_p_clk); + if (ret) { + pr_err("Failed to switch cpu to clock pll_p\n"); + goto out; + } + + if (rate == clk_get_rate(pll_p_clk)) + goto out; + + ret = clk_set_rate(pll_x_clk, rate); + if (ret) { + pr_err("Failed to change pll_x to %lu\n", rate); + goto out; + } + + ret = clk_set_parent(cpu_clk, pll_x_clk); + if (ret) { + pr_err("Failed to switch cpu to clock pll_x\n"); + goto out; + } + +out: + clk_disable_unprepare(pll_x_clk); + return ret; +} + static int tegra_update_cpu_speed(unsigned long rate) { int ret = 0; @@ -101,7 +139,7 @@ static int tegra_update_cpu_speed(unsigned long rate) freqs.old, freqs.new); #endif - ret = clk_set_rate(cpu_clk, freqs.new * 1000); + ret = tegra_cpu_clk_set_rate(freqs.new * 1000); if (ret) { pr_err("cpu-tegra: Failed to set cpu frequency to %d kHz\n", freqs.new); @@ -183,6 +221,14 @@ static int tegra_cpu_init(struct cpufreq_policy *policy) if (IS_ERR(cpu_clk)) return PTR_ERR(cpu_clk); + pll_x_clk = clk_get_sys(NULL, "pll_x"); + if (IS_ERR(pll_x_clk)) + return PTR_ERR(pll_x_clk); + + pll_p_clk = clk_get_sys(NULL, "pll_p"); + if (IS_ERR(pll_p_clk)) + return PTR_ERR(pll_p_clk); + emc_clk = clk_get_sys("cpu", "emc"); if (IS_ERR(emc_clk)) { clk_put(cpu_clk); diff --git a/arch/arm/mach-tegra/headsmp.S b/arch/arm/mach-tegra/headsmp.S index fef9c2c51370..6addc78cb6b2 100644 --- a/arch/arm/mach-tegra/headsmp.S +++ b/arch/arm/mach-tegra/headsmp.S @@ -7,17 +7,13 @@ #include "flowctrl.h" #include "reset.h" +#include "sleep.h" #define APB_MISC_GP_HIDREV 0x804 #define PMC_SCRATCH41 0x140 #define RESET_DATA(x) ((TEGRA_RESET_##x)*4) - .macro mov32, reg, val - movw \reg, #:lower16:\val - movt \reg, #:upper16:\val - .endm - .section ".text.head", "ax" __CPUINIT diff --git a/arch/arm/mach-tegra/hotplug.c b/arch/arm/mach-tegra/hotplug.c index d8dc9ddd6d18..d02a35476135 100644 --- a/arch/arm/mach-tegra/hotplug.c +++ b/arch/arm/mach-tegra/hotplug.c @@ -1,91 +1,23 @@ /* - * linux/arch/arm/mach-realview/hotplug.c * * Copyright (C) 2002 ARM Ltd. * All Rights Reserved + * Copyright (c) 2010, 2012 NVIDIA Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #include <linux/kernel.h> -#include <linux/errno.h> #include <linux/smp.h> #include <asm/cacheflush.h> -#include <asm/cp15.h> +#include <asm/smp_plat.h> -static inline void cpu_enter_lowpower(void) -{ - unsigned int v; - - flush_cache_all(); - asm volatile( - " mcr p15, 0, %1, c7, c5, 0\n" - " mcr p15, 0, %1, c7, c10, 4\n" - /* - * Turn off coherency - */ - " mrc p15, 0, %0, c1, c0, 1\n" - " bic %0, %0, #0x20\n" - " mcr p15, 0, %0, c1, c0, 1\n" - " mrc p15, 0, %0, c1, c0, 0\n" - " bic %0, %0, %2\n" - " mcr p15, 0, %0, c1, c0, 0\n" - : "=&r" (v) - : "r" (0), "Ir" (CR_C) - : "cc"); -} - -static inline void cpu_leave_lowpower(void) -{ - unsigned int v; - - asm volatile( - "mrc p15, 0, %0, c1, c0, 0\n" - " orr %0, %0, %1\n" - " mcr p15, 0, %0, c1, c0, 0\n" - " mrc p15, 0, %0, c1, c0, 1\n" - " orr %0, %0, #0x20\n" - " mcr p15, 0, %0, c1, c0, 1\n" - : "=&r" (v) - : "Ir" (CR_C) - : "cc"); -} - -static inline void platform_do_lowpower(unsigned int cpu, int *spurious) -{ - /* - * there is no power-control hardware on this platform, so all - * we can do is put the core into WFI; this is safe as the calling - * code will have already disabled interrupts - */ - for (;;) { - /* - * here's the WFI - */ - asm(".word 0xe320f003\n" - : - : - : "memory", "cc"); +#include "sleep.h" +#include "tegra_cpu_car.h" - /*if (pen_release == cpu) {*/ - /* - * OK, proper wakeup, we're done - */ - break; - /*}*/ - - /* - * Getting here, means that we have come out of WFI without - * having been woken up - this shouldn't happen - * - * Just note it happening - when we're woken, we can report - * its occurrence. - */ - (*spurious)++; - } -} +static void (*tegra_hotplug_shutdown)(void); int platform_cpu_kill(unsigned int cpu) { @@ -99,22 +31,20 @@ int platform_cpu_kill(unsigned int cpu) */ void platform_cpu_die(unsigned int cpu) { - int spurious = 0; + cpu = cpu_logical_map(cpu); - /* - * we're ready for shutdown now, so do it - */ - cpu_enter_lowpower(); - platform_do_lowpower(cpu, &spurious); + /* Flush the L1 data cache. */ + flush_cache_all(); - /* - * bring this CPU back into the world of cache - * coherency, and then restore interrupts - */ - cpu_leave_lowpower(); + /* Shut down the current CPU. */ + tegra_hotplug_shutdown(); - if (spurious) - pr_warn("CPU%u: %u spurious wakeup calls\n", cpu, spurious); + /* Clock gate the CPU */ + tegra_wait_cpu_in_reset(cpu); + tegra_disable_cpu_clock(cpu); + + /* Should never return here. */ + BUG(); } int platform_cpu_disable(unsigned int cpu) @@ -125,3 +55,19 @@ int platform_cpu_disable(unsigned int cpu) */ return cpu == 0 ? -EPERM : 0; } + +#ifdef CONFIG_ARCH_TEGRA_2x_SOC +extern void tegra20_hotplug_shutdown(void); +void __init tegra20_hotplug_init(void) +{ + tegra_hotplug_shutdown = tegra20_hotplug_shutdown; +} +#endif + +#ifdef CONFIG_ARCH_TEGRA_3x_SOC +extern void tegra30_hotplug_shutdown(void); +void __init tegra30_hotplug_init(void) +{ + tegra_hotplug_shutdown = tegra30_hotplug_shutdown; +} +#endif diff --git a/arch/arm/mach-tegra/include/mach/clk.h b/arch/arm/mach-tegra/include/mach/clk.h index d97e403303a0..95f3a547c770 100644 --- a/arch/arm/mach-tegra/include/mach/clk.h +++ b/arch/arm/mach-tegra/include/mach/clk.h @@ -34,7 +34,10 @@ enum tegra_clk_ex_param { void tegra_periph_reset_deassert(struct clk *c); void tegra_periph_reset_assert(struct clk *c); +#ifndef CONFIG_COMMON_CLK unsigned long clk_get_rate_all_locked(struct clk *c); +#endif + void tegra2_sdmmc_tap_delay(struct clk *c, int delay); int tegra_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting); diff --git a/arch/arm/mach-tegra/platsmp.c b/arch/arm/mach-tegra/platsmp.c index 1a208dbf682f..96ed1718eef0 100644 --- a/arch/arm/mach-tegra/platsmp.c +++ b/arch/arm/mach-tegra/platsmp.c @@ -31,6 +31,7 @@ #include "fuse.h" #include "flowctrl.h" #include "reset.h" +#include "tegra_cpu_car.h" extern void tegra_secondary_startup(void); @@ -38,17 +39,6 @@ static void __iomem *scu_base = IO_ADDRESS(TEGRA_ARM_PERIF_BASE); #define EVP_CPU_RESET_VECTOR \ (IO_ADDRESS(TEGRA_EXCEPTION_VECTORS_BASE) + 0x100) -#define CLK_RST_CONTROLLER_CLK_CPU_CMPLX \ - (IO_ADDRESS(TEGRA_CLK_RESET_BASE) + 0x4c) -#define CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET \ - (IO_ADDRESS(TEGRA_CLK_RESET_BASE) + 0x340) -#define CLK_RST_CONTROLLER_RST_CPU_CMPLX_CLR \ - (IO_ADDRESS(TEGRA_CLK_RESET_BASE) + 0x344) -#define CLK_RST_CONTROLLER_CLK_CPU_CMPLX_CLR \ - (IO_ADDRESS(TEGRA_CLK_RESET_BASE) + 0x34c) - -#define CPU_CLOCK(cpu) (0x1<<(8+cpu)) -#define CPU_RESET(cpu) (0x1111ul<<(cpu)) void __cpuinit platform_secondary_init(unsigned int cpu) { @@ -63,13 +53,8 @@ void __cpuinit platform_secondary_init(unsigned int cpu) static int tegra20_power_up_cpu(unsigned int cpu) { - u32 reg; - /* Enable the CPU clock. */ - reg = readl(CLK_RST_CONTROLLER_CLK_CPU_CMPLX); - writel(reg & ~CPU_CLOCK(cpu), CLK_RST_CONTROLLER_CLK_CPU_CMPLX); - barrier(); - reg = readl(CLK_RST_CONTROLLER_CLK_CPU_CMPLX); + tegra_enable_cpu_clock(cpu); /* Clear flow controller CSR. */ flowctrl_write_cpu_csr(cpu, 0); @@ -79,7 +64,6 @@ static int tegra20_power_up_cpu(unsigned int cpu) static int tegra30_power_up_cpu(unsigned int cpu) { - u32 reg; int ret, pwrgateid; unsigned long timeout; @@ -103,8 +87,7 @@ static int tegra30_power_up_cpu(unsigned int cpu) } /* CPU partition is powered. Enable the CPU clock. */ - writel(CPU_CLOCK(cpu), CLK_RST_CONTROLLER_CLK_CPU_CMPLX_CLR); - reg = readl(CLK_RST_CONTROLLER_CLK_CPU_CMPLX_CLR); + tegra_enable_cpu_clock(cpu); udelay(10); /* Remove I/O clamps. */ @@ -128,8 +111,7 @@ int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) * via the flow controller). This will have no effect on first boot * of the CPU since it should already be in reset. */ - writel(CPU_RESET(cpu), CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET); - dmb(); + tegra_put_cpu_in_reset(cpu); /* * Unhalt the CPU. If the flow controller was used to power-gate the @@ -155,8 +137,7 @@ int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) goto done; /* Take the CPU out of reset. */ - writel(CPU_RESET(cpu), CLK_RST_CONTROLLER_RST_CPU_CMPLX_CLR); - wmb(); + tegra_cpu_out_of_reset(cpu); done: return status; } diff --git a/arch/arm/mach-tegra/sleep-t20.S b/arch/arm/mach-tegra/sleep-t20.S new file mode 100644 index 000000000000..a36ae413e2b8 --- /dev/null +++ b/arch/arm/mach-tegra/sleep-t20.S @@ -0,0 +1,82 @@ +/* + * Copyright (c) 2010-2012, NVIDIA Corporation. All rights reserved. + * Copyright (c) 2011, Google, Inc. + * + * Author: Colin Cross <ccross@android.com> + * Gary King <gking@nvidia.com> + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/linkage.h> + +#include <asm/assembler.h> + +#include <mach/iomap.h> + +#include "sleep.h" +#include "flowctrl.h" + +#if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_PM_SLEEP) +/* + * tegra20_hotplug_shutdown(void) + * + * puts the current cpu in reset + * should never return + */ +ENTRY(tegra20_hotplug_shutdown) + /* Turn off SMP coherency */ + exit_smp r4, r5 + + /* Put this CPU down */ + cpu_id r0 + bl tegra20_cpu_shutdown + mov pc, lr @ should never get here +ENDPROC(tegra20_hotplug_shutdown) + +/* + * tegra20_cpu_shutdown(int cpu) + * + * r0 is cpu to reset + * + * puts the specified CPU in wait-for-event mode on the flow controller + * and puts the CPU in reset + * can be called on the current cpu or another cpu + * if called on the current cpu, does not return + * MUST NOT BE CALLED FOR CPU 0. + * + * corrupts r0-r3, r12 + */ +ENTRY(tegra20_cpu_shutdown) + cmp r0, #0 + moveq pc, lr @ must not be called for CPU 0 + + cpu_to_halt_reg r1, r0 + ldr r3, =TEGRA_FLOW_CTRL_VIRT + mov r2, #FLOW_CTRL_WAITEVENT | FLOW_CTRL_JTAG_RESUME + str r2, [r3, r1] @ put flow controller in wait event mode + ldr r2, [r3, r1] + isb + dsb + movw r1, 0x1011 + mov r1, r1, lsl r0 + ldr r3, =TEGRA_CLK_RESET_VIRT + str r1, [r3, #0x340] @ put slave CPU in reset + isb + dsb + cpu_id r3 + cmp r3, r0 + beq . + mov pc, lr +ENDPROC(tegra20_cpu_shutdown) +#endif diff --git a/arch/arm/mach-tegra/sleep-t30.S b/arch/arm/mach-tegra/sleep-t30.S new file mode 100644 index 000000000000..777d9cee8b90 --- /dev/null +++ b/arch/arm/mach-tegra/sleep-t30.S @@ -0,0 +1,107 @@ +/* + * Copyright (c) 2012, NVIDIA Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <linux/linkage.h> + +#include <asm/assembler.h> + +#include <mach/iomap.h> + +#include "sleep.h" +#include "flowctrl.h" + +#define TEGRA30_POWER_HOTPLUG_SHUTDOWN (1 << 27) /* Hotplug shutdown */ + +#if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_PM_SLEEP) +/* + * tegra30_hotplug_shutdown(void) + * + * Powergates the current CPU. + * Should never return. + */ +ENTRY(tegra30_hotplug_shutdown) + /* Turn off SMP coherency */ + exit_smp r4, r5 + + /* Powergate this CPU */ + mov r0, #TEGRA30_POWER_HOTPLUG_SHUTDOWN + bl tegra30_cpu_shutdown + mov pc, lr @ should never get here +ENDPROC(tegra30_hotplug_shutdown) + +/* + * tegra30_cpu_shutdown(unsigned long flags) + * + * Puts the current CPU in wait-for-event mode on the flow controller + * and powergates it -- flags (in R0) indicate the request type. + * Must never be called for CPU 0. + * + * corrupts r0-r4, r12 + */ +ENTRY(tegra30_cpu_shutdown) + cpu_id r3 + cmp r3, #0 + moveq pc, lr @ Must never be called for CPU 0 + + ldr r12, =TEGRA_FLOW_CTRL_VIRT + cpu_to_csr_reg r1, r3 + add r1, r1, r12 @ virtual CSR address for this CPU + cpu_to_halt_reg r2, r3 + add r2, r2, r12 @ virtual HALT_EVENTS address for this CPU + + /* + * Clear this CPU's "event" and "interrupt" flags and power gate + * it when halting but not before it is in the "WFE" state. + */ + movw r12, \ + FLOW_CTRL_CSR_INTR_FLAG | FLOW_CTRL_CSR_EVENT_FLAG | \ + FLOW_CTRL_CSR_ENABLE + mov r4, #(1 << 4) + orr r12, r12, r4, lsl r3 + str r12, [r1] + + /* Halt this CPU. */ + mov r3, #0x400 +delay_1: + subs r3, r3, #1 @ delay as a part of wfe war. + bge delay_1; + cpsid a @ disable imprecise aborts. + ldr r3, [r1] @ read CSR + str r3, [r1] @ clear CSR + tst r0, #TEGRA30_POWER_HOTPLUG_SHUTDOWN + movne r3, #FLOW_CTRL_WAITEVENT @ For hotplug + str r3, [r2] + ldr r0, [r2] + b wfe_war + +__cpu_reset_again: + dsb + .align 5 + wfe @ CPU should be power gated here +wfe_war: + b __cpu_reset_again + + /* + * 38 nop's, which fills reset of wfe cache line and + * 4 more cachelines with nop + */ + .rept 38 + nop + .endr + b . @ should never get here + +ENDPROC(tegra30_cpu_shutdown) +#endif diff --git a/arch/arm/mach-tegra/sleep.S b/arch/arm/mach-tegra/sleep.S index d29b156a8011..ea81554c4833 100644 --- a/arch/arm/mach-tegra/sleep.S +++ b/arch/arm/mach-tegra/sleep.S @@ -29,36 +29,5 @@ #include <mach/iomap.h> #include "flowctrl.h" +#include "sleep.h" -#define TEGRA_FLOW_CTRL_VIRT (TEGRA_FLOW_CTRL_BASE - IO_PPSB_PHYS \ - + IO_PPSB_VIRT) - -/* returns the offset of the flow controller halt register for a cpu */ -.macro cpu_to_halt_reg rd, rcpu - cmp \rcpu, #0 - subne \rd, \rcpu, #1 - movne \rd, \rd, lsl #3 - addne \rd, \rd, #0x14 - moveq \rd, #0 -.endm - -/* returns the offset of the flow controller csr register for a cpu */ -.macro cpu_to_csr_reg rd, rcpu - cmp \rcpu, #0 - subne \rd, \rcpu, #1 - movne \rd, \rd, lsl #3 - addne \rd, \rd, #0x18 - moveq \rd, #8 -.endm - -/* returns the ID of the current processor */ -.macro cpu_id, rd - mrc p15, 0, \rd, c0, c0, 5 - and \rd, \rd, #0xF -.endm - -/* loads a 32-bit value into a register without a data access */ -.macro mov32, reg, val - movw \reg, #:lower16:\val - movt \reg, #:upper16:\val -.endm diff --git a/arch/arm/mach-tegra/sleep.h b/arch/arm/mach-tegra/sleep.h new file mode 100644 index 000000000000..e25a7cd703d9 --- /dev/null +++ b/arch/arm/mach-tegra/sleep.h @@ -0,0 +1,85 @@ +/* + * Copyright (c) 2010-2012, NVIDIA Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef __MACH_TEGRA_SLEEP_H +#define __MACH_TEGRA_SLEEP_H + +#include <mach/iomap.h> + +#define TEGRA_ARM_PERIF_VIRT (TEGRA_ARM_PERIF_BASE - IO_CPU_PHYS \ + + IO_CPU_VIRT) +#define TEGRA_FLOW_CTRL_VIRT (TEGRA_FLOW_CTRL_BASE - IO_PPSB_PHYS \ + + IO_PPSB_VIRT) +#define TEGRA_CLK_RESET_VIRT (TEGRA_CLK_RESET_BASE - IO_PPSB_PHYS \ + + IO_PPSB_VIRT) + +#ifdef __ASSEMBLY__ +/* returns the offset of the flow controller halt register for a cpu */ +.macro cpu_to_halt_reg rd, rcpu + cmp \rcpu, #0 + subne \rd, \rcpu, #1 + movne \rd, \rd, lsl #3 + addne \rd, \rd, #0x14 + moveq \rd, #0 +.endm + +/* returns the offset of the flow controller csr register for a cpu */ +.macro cpu_to_csr_reg rd, rcpu + cmp \rcpu, #0 + subne \rd, \rcpu, #1 + movne \rd, \rd, lsl #3 + addne \rd, \rd, #0x18 + moveq \rd, #8 +.endm + +/* returns the ID of the current processor */ +.macro cpu_id, rd + mrc p15, 0, \rd, c0, c0, 5 + and \rd, \rd, #0xF +.endm + +/* loads a 32-bit value into a register without a data access */ +.macro mov32, reg, val + movw \reg, #:lower16:\val + movt \reg, #:upper16:\val +.endm + +/* Macro to exit SMP coherency. */ +.macro exit_smp, tmp1, tmp2 + mrc p15, 0, \tmp1, c1, c0, 1 @ ACTLR + bic \tmp1, \tmp1, #(1<<6) | (1<<0) @ clear ACTLR.SMP | ACTLR.FW + mcr p15, 0, \tmp1, c1, c0, 1 @ ACTLR + isb + cpu_id \tmp1 + mov \tmp1, \tmp1, lsl #2 + mov \tmp2, #0xf + mov \tmp2, \tmp2, lsl \tmp1 + mov32 \tmp1, TEGRA_ARM_PERIF_VIRT + 0xC + str \tmp2, [\tmp1] @ invalidate SCU tags for CPU + dsb +.endm +#else + +#ifdef CONFIG_HOTPLUG_CPU +void tegra20_hotplug_init(void); +void tegra30_hotplug_init(void); +#else +static inline void tegra20_hotplug_init(void) {} +static inline void tegra30_hotplug_init(void) {} +#endif + +#endif +#endif diff --git a/arch/arm/mach-tegra/tegra20_clocks.c b/arch/arm/mach-tegra/tegra20_clocks.c new file mode 100644 index 000000000000..9273b0dffc66 --- /dev/null +++ b/arch/arm/mach-tegra/tegra20_clocks.c @@ -0,0 +1,1625 @@ +/* + * arch/arm/mach-tegra/tegra20_clocks.c + * + * Copyright (C) 2010 Google, Inc. + * Copyright (c) 2010-2012 NVIDIA CORPORATION. All rights reserved. + * + * Author: + * Colin Cross <ccross@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/list.h> +#include <linux/spinlock.h> +#include <linux/delay.h> +#include <linux/io.h> +#include <linux/clkdev.h> +#include <linux/clk.h> + +#include <mach/iomap.h> +#include <mach/suspend.h> + +#include "clock.h" +#include "fuse.h" +#include "tegra2_emc.h" +#include "tegra_cpu_car.h" + +#define RST_DEVICES 0x004 +#define RST_DEVICES_SET 0x300 +#define RST_DEVICES_CLR 0x304 +#define RST_DEVICES_NUM 3 + +#define CLK_OUT_ENB 0x010 +#define CLK_OUT_ENB_SET 0x320 +#define CLK_OUT_ENB_CLR 0x324 +#define CLK_OUT_ENB_NUM 3 + +#define CLK_MASK_ARM 0x44 +#define MISC_CLK_ENB 0x48 + +#define OSC_CTRL 0x50 +#define OSC_CTRL_OSC_FREQ_MASK (3<<30) +#define OSC_CTRL_OSC_FREQ_13MHZ (0<<30) +#define OSC_CTRL_OSC_FREQ_19_2MHZ (1<<30) +#define OSC_CTRL_OSC_FREQ_12MHZ (2<<30) +#define OSC_CTRL_OSC_FREQ_26MHZ (3<<30) +#define OSC_CTRL_MASK (0x3f2 | OSC_CTRL_OSC_FREQ_MASK) + +#define OSC_FREQ_DET 0x58 +#define OSC_FREQ_DET_TRIG (1<<31) + +#define OSC_FREQ_DET_STATUS 0x5C +#define OSC_FREQ_DET_BUSY (1<<31) +#define OSC_FREQ_DET_CNT_MASK 0xFFFF + +#define PERIPH_CLK_SOURCE_I2S1 0x100 +#define PERIPH_CLK_SOURCE_EMC 0x19c +#define PERIPH_CLK_SOURCE_OSC 0x1fc +#define PERIPH_CLK_SOURCE_NUM \ + ((PERIPH_CLK_SOURCE_OSC - PERIPH_CLK_SOURCE_I2S1) / 4) + +#define PERIPH_CLK_SOURCE_MASK (3<<30) +#define PERIPH_CLK_SOURCE_SHIFT 30 +#define PERIPH_CLK_SOURCE_PWM_MASK (7<<28) +#define PERIPH_CLK_SOURCE_PWM_SHIFT 28 +#define PERIPH_CLK_SOURCE_ENABLE (1<<28) +#define PERIPH_CLK_SOURCE_DIVU71_MASK 0xFF +#define PERIPH_CLK_SOURCE_DIVU16_MASK 0xFFFF +#define PERIPH_CLK_SOURCE_DIV_SHIFT 0 + +#define SDMMC_CLK_INT_FB_SEL (1 << 23) +#define SDMMC_CLK_INT_FB_DLY_SHIFT 16 +#define SDMMC_CLK_INT_FB_DLY_MASK (0xF << SDMMC_CLK_INT_FB_DLY_SHIFT) + +#define PLL_BASE 0x0 +#define PLL_BASE_BYPASS (1<<31) +#define PLL_BASE_ENABLE (1<<30) +#define PLL_BASE_REF_ENABLE (1<<29) +#define PLL_BASE_OVERRIDE (1<<28) +#define PLL_BASE_DIVP_MASK (0x7<<20) +#define PLL_BASE_DIVP_SHIFT 20 +#define PLL_BASE_DIVN_MASK (0x3FF<<8) +#define PLL_BASE_DIVN_SHIFT 8 +#define PLL_BASE_DIVM_MASK (0x1F) +#define PLL_BASE_DIVM_SHIFT 0 + +#define PLL_OUT_RATIO_MASK (0xFF<<8) +#define PLL_OUT_RATIO_SHIFT 8 +#define PLL_OUT_OVERRIDE (1<<2) +#define PLL_OUT_CLKEN (1<<1) +#define PLL_OUT_RESET_DISABLE (1<<0) + +#define PLL_MISC(c) (((c)->flags & PLL_ALT_MISC_REG) ? 0x4 : 0xc) + +#define PLL_MISC_DCCON_SHIFT 20 +#define PLL_MISC_CPCON_SHIFT 8 +#define PLL_MISC_CPCON_MASK (0xF<<PLL_MISC_CPCON_SHIFT) +#define PLL_MISC_LFCON_SHIFT 4 +#define PLL_MISC_LFCON_MASK (0xF<<PLL_MISC_LFCON_SHIFT) +#define PLL_MISC_VCOCON_SHIFT 0 +#define PLL_MISC_VCOCON_MASK (0xF<<PLL_MISC_VCOCON_SHIFT) + +#define PLLU_BASE_POST_DIV (1<<20) + +#define PLLD_MISC_CLKENABLE (1<<30) +#define PLLD_MISC_DIV_RST (1<<23) +#define PLLD_MISC_DCCON_SHIFT 12 + +#define PLLE_MISC_READY (1 << 15) + +#define PERIPH_CLK_TO_ENB_REG(c) ((c->u.periph.clk_num / 32) * 4) +#define PERIPH_CLK_TO_ENB_SET_REG(c) ((c->u.periph.clk_num / 32) * 8) +#define PERIPH_CLK_TO_ENB_BIT(c) (1 << (c->u.periph.clk_num % 32)) + +#define SUPER_CLK_MUX 0x00 +#define SUPER_STATE_SHIFT 28 +#define SUPER_STATE_MASK (0xF << SUPER_STATE_SHIFT) +#define SUPER_STATE_STANDBY (0x0 << SUPER_STATE_SHIFT) +#define SUPER_STATE_IDLE (0x1 << SUPER_STATE_SHIFT) +#define SUPER_STATE_RUN (0x2 << SUPER_STATE_SHIFT) +#define SUPER_STATE_IRQ (0x3 << SUPER_STATE_SHIFT) +#define SUPER_STATE_FIQ (0x4 << SUPER_STATE_SHIFT) +#define SUPER_SOURCE_MASK 0xF +#define SUPER_FIQ_SOURCE_SHIFT 12 +#define SUPER_IRQ_SOURCE_SHIFT 8 +#define SUPER_RUN_SOURCE_SHIFT 4 +#define SUPER_IDLE_SOURCE_SHIFT 0 + +#define SUPER_CLK_DIVIDER 0x04 + +#define BUS_CLK_DISABLE (1<<3) +#define BUS_CLK_DIV_MASK 0x3 + +#define PMC_CTRL 0x0 + #define PMC_CTRL_BLINK_ENB (1 << 7) + +#define PMC_DPD_PADS_ORIDE 0x1c + #define PMC_DPD_PADS_ORIDE_BLINK_ENB (1 << 20) + +#define PMC_BLINK_TIMER_DATA_ON_SHIFT 0 +#define PMC_BLINK_TIMER_DATA_ON_MASK 0x7fff +#define PMC_BLINK_TIMER_ENB (1 << 15) +#define PMC_BLINK_TIMER_DATA_OFF_SHIFT 16 +#define PMC_BLINK_TIMER_DATA_OFF_MASK 0xffff + +/* Tegra CPU clock and reset control regs */ +#define TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX 0x4c +#define TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET 0x340 +#define TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_CLR 0x344 + +#define CPU_CLOCK(cpu) (0x1 << (8 + cpu)) +#define CPU_RESET(cpu) (0x1111ul << (cpu)) + +static void __iomem *reg_clk_base = IO_ADDRESS(TEGRA_CLK_RESET_BASE); +static void __iomem *reg_pmc_base = IO_ADDRESS(TEGRA_PMC_BASE); + +/* + * Some clocks share a register with other clocks. Any clock op that + * non-atomically modifies a register used by another clock must lock + * clock_register_lock first. + */ +static DEFINE_SPINLOCK(clock_register_lock); + +/* + * Some peripheral clocks share an enable bit, so refcount the enable bits + * in registers CLK_ENABLE_L, CLK_ENABLE_H, and CLK_ENABLE_U + */ +static int tegra_periph_clk_enable_refcount[3 * 32]; + +#define clk_writel(value, reg) \ + __raw_writel(value, reg_clk_base + (reg)) +#define clk_readl(reg) \ + __raw_readl(reg_clk_base + (reg)) +#define pmc_writel(value, reg) \ + __raw_writel(value, reg_pmc_base + (reg)) +#define pmc_readl(reg) \ + __raw_readl(reg_pmc_base + (reg)) + +static unsigned long clk_measure_input_freq(void) +{ + u32 clock_autodetect; + clk_writel(OSC_FREQ_DET_TRIG | 1, OSC_FREQ_DET); + do {} while (clk_readl(OSC_FREQ_DET_STATUS) & OSC_FREQ_DET_BUSY); + clock_autodetect = clk_readl(OSC_FREQ_DET_STATUS); + if (clock_autodetect >= 732 - 3 && clock_autodetect <= 732 + 3) { + return 12000000; + } else if (clock_autodetect >= 794 - 3 && clock_autodetect <= 794 + 3) { + return 13000000; + } else if (clock_autodetect >= 1172 - 3 && clock_autodetect <= 1172 + 3) { + return 19200000; + } else if (clock_autodetect >= 1587 - 3 && clock_autodetect <= 1587 + 3) { + return 26000000; + } else { + pr_err("%s: Unexpected clock autodetect value %d", + __func__, clock_autodetect); + BUG(); + return 0; + } +} + +static int clk_div71_get_divider(unsigned long parent_rate, unsigned long rate) +{ + s64 divider_u71 = parent_rate * 2; + divider_u71 += rate - 1; + do_div(divider_u71, rate); + + if (divider_u71 - 2 < 0) + return 0; + + if (divider_u71 - 2 > 255) + return -EINVAL; + + return divider_u71 - 2; +} + +static int clk_div16_get_divider(unsigned long parent_rate, unsigned long rate) +{ + s64 divider_u16; + + divider_u16 = parent_rate; + divider_u16 += rate - 1; + do_div(divider_u16, rate); + + if (divider_u16 - 1 < 0) + return 0; + + if (divider_u16 - 1 > 0xFFFF) + return -EINVAL; + + return divider_u16 - 1; +} + +static unsigned long tegra_clk_fixed_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + return to_clk_tegra(hw)->fixed_rate; +} + +struct clk_ops tegra_clk_32k_ops = { + .recalc_rate = tegra_clk_fixed_recalc_rate, +}; + +/* clk_m functions */ +static unsigned long tegra20_clk_m_recalc_rate(struct clk_hw *hw, + unsigned long prate) +{ + if (!to_clk_tegra(hw)->fixed_rate) + to_clk_tegra(hw)->fixed_rate = clk_measure_input_freq(); + return to_clk_tegra(hw)->fixed_rate; +} + +static void tegra20_clk_m_init(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u32 osc_ctrl = clk_readl(OSC_CTRL); + u32 auto_clock_control = osc_ctrl & ~OSC_CTRL_OSC_FREQ_MASK; + + switch (c->fixed_rate) { + case 12000000: + auto_clock_control |= OSC_CTRL_OSC_FREQ_12MHZ; + break; + case 13000000: + auto_clock_control |= OSC_CTRL_OSC_FREQ_13MHZ; + break; + case 19200000: + auto_clock_control |= OSC_CTRL_OSC_FREQ_19_2MHZ; + break; + case 26000000: + auto_clock_control |= OSC_CTRL_OSC_FREQ_26MHZ; + break; + default: + BUG(); + } + clk_writel(auto_clock_control, OSC_CTRL); +} + +struct clk_ops tegra_clk_m_ops = { + .init = tegra20_clk_m_init, + .recalc_rate = tegra20_clk_m_recalc_rate, +}; + +/* super clock functions */ +/* "super clocks" on tegra have two-stage muxes and a clock skipping + * super divider. We will ignore the clock skipping divider, since we + * can't lower the voltage when using the clock skip, but we can if we + * lower the PLL frequency. + */ +static int tegra20_super_clk_is_enabled(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u32 val; + + val = clk_readl(c->reg + SUPER_CLK_MUX); + BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) && + ((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE)); + c->state = ON; + return c->state; +} + +static int tegra20_super_clk_enable(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + clk_writel(0, c->reg + SUPER_CLK_DIVIDER); + return 0; +} + +static void tegra20_super_clk_disable(struct clk_hw *hw) +{ + pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk)); + + /* oops - don't disable the CPU clock! */ + BUG(); +} + +static u8 tegra20_super_clk_get_parent(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + int val = clk_readl(c->reg + SUPER_CLK_MUX); + int source; + int shift; + + BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) && + ((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE)); + shift = ((val & SUPER_STATE_MASK) == SUPER_STATE_IDLE) ? + SUPER_IDLE_SOURCE_SHIFT : SUPER_RUN_SOURCE_SHIFT; + source = (val >> shift) & SUPER_SOURCE_MASK; + return source; +} + +static int tegra20_super_clk_set_parent(struct clk_hw *hw, u8 index) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u32 val = clk_readl(c->reg + SUPER_CLK_MUX); + int shift; + + BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) && + ((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE)); + shift = ((val & SUPER_STATE_MASK) == SUPER_STATE_IDLE) ? + SUPER_IDLE_SOURCE_SHIFT : SUPER_RUN_SOURCE_SHIFT; + val &= ~(SUPER_SOURCE_MASK << shift); + val |= index << shift; + + clk_writel(val, c->reg); + + return 0; +} + +/* FIX ME: Need to switch parents to change the source PLL rate */ +static unsigned long tegra20_super_clk_recalc_rate(struct clk_hw *hw, + unsigned long prate) +{ + return prate; +} + +static long tegra20_super_clk_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + return *prate; +} + +static int tegra20_super_clk_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + return 0; +} + +struct clk_ops tegra_super_ops = { + .is_enabled = tegra20_super_clk_is_enabled, + .enable = tegra20_super_clk_enable, + .disable = tegra20_super_clk_disable, + .set_parent = tegra20_super_clk_set_parent, + .get_parent = tegra20_super_clk_get_parent, + .set_rate = tegra20_super_clk_set_rate, + .round_rate = tegra20_super_clk_round_rate, + .recalc_rate = tegra20_super_clk_recalc_rate, +}; + +static unsigned long tegra20_twd_clk_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u64 rate = parent_rate; + + if (c->mul != 0 && c->div != 0) { + rate *= c->mul; + rate += c->div - 1; /* round up */ + do_div(rate, c->div); + } + + return rate; +} + +struct clk_ops tegra_twd_ops = { + .recalc_rate = tegra20_twd_clk_recalc_rate, +}; + +static u8 tegra20_cop_clk_get_parent(struct clk_hw *hw) +{ + return 0; +} + +struct clk_ops tegra_cop_ops = { + .get_parent = tegra20_cop_clk_get_parent, +}; + +/* virtual cop clock functions. Used to acquire the fake 'cop' clock to + * reset the COP block (i.e. AVP) */ +void tegra2_cop_clk_reset(struct clk_hw *hw, bool assert) +{ + unsigned long reg = assert ? RST_DEVICES_SET : RST_DEVICES_CLR; + + pr_debug("%s %s\n", __func__, assert ? "assert" : "deassert"); + clk_writel(1 << 1, reg); +} + +/* bus clock functions */ +static int tegra20_bus_clk_is_enabled(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u32 val = clk_readl(c->reg); + + c->state = ((val >> c->reg_shift) & BUS_CLK_DISABLE) ? OFF : ON; + return c->state; +} + +static int tegra20_bus_clk_enable(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + unsigned long flags; + u32 val; + + spin_lock_irqsave(&clock_register_lock, flags); + + val = clk_readl(c->reg); + val &= ~(BUS_CLK_DISABLE << c->reg_shift); + clk_writel(val, c->reg); + + spin_unlock_irqrestore(&clock_register_lock, flags); + + return 0; +} + +static void tegra20_bus_clk_disable(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + unsigned long flags; + u32 val; + + spin_lock_irqsave(&clock_register_lock, flags); + + val = clk_readl(c->reg); + val |= BUS_CLK_DISABLE << c->reg_shift; + clk_writel(val, c->reg); + + spin_unlock_irqrestore(&clock_register_lock, flags); +} + +static unsigned long tegra20_bus_clk_recalc_rate(struct clk_hw *hw, + unsigned long prate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u32 val = clk_readl(c->reg); + u64 rate = prate; + + c->div = ((val >> c->reg_shift) & BUS_CLK_DIV_MASK) + 1; + c->mul = 1; + + if (c->mul != 0 && c->div != 0) { + rate *= c->mul; + rate += c->div - 1; /* round up */ + do_div(rate, c->div); + } + return rate; +} + +static int tegra20_bus_clk_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + int ret = -EINVAL; + unsigned long flags; + u32 val; + int i; + + spin_lock_irqsave(&clock_register_lock, flags); + + val = clk_readl(c->reg); + for (i = 1; i <= 4; i++) { + if (rate == parent_rate / i) { + val &= ~(BUS_CLK_DIV_MASK << c->reg_shift); + val |= (i - 1) << c->reg_shift; + clk_writel(val, c->reg); + c->div = i; + c->mul = 1; + ret = 0; + break; + } + } + + spin_unlock_irqrestore(&clock_register_lock, flags); + + return ret; +} + +static long tegra20_bus_clk_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + unsigned long parent_rate = *prate; + s64 divider; + + if (rate >= parent_rate) + return rate; + + divider = parent_rate; + divider += rate - 1; + do_div(divider, rate); + + if (divider < 0) + return divider; + + if (divider > 4) + divider = 4; + do_div(parent_rate, divider); + + return parent_rate; +} + +struct clk_ops tegra_bus_ops = { + .is_enabled = tegra20_bus_clk_is_enabled, + .enable = tegra20_bus_clk_enable, + .disable = tegra20_bus_clk_disable, + .set_rate = tegra20_bus_clk_set_rate, + .round_rate = tegra20_bus_clk_round_rate, + .recalc_rate = tegra20_bus_clk_recalc_rate, +}; + +/* Blink output functions */ +static int tegra20_blink_clk_is_enabled(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u32 val; + + val = pmc_readl(PMC_CTRL); + c->state = (val & PMC_CTRL_BLINK_ENB) ? ON : OFF; + return c->state; +} + +static unsigned long tegra20_blink_clk_recalc_rate(struct clk_hw *hw, + unsigned long prate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u64 rate = prate; + u32 val; + + c->mul = 1; + val = pmc_readl(c->reg); + + if (val & PMC_BLINK_TIMER_ENB) { + unsigned int on_off; + + on_off = (val >> PMC_BLINK_TIMER_DATA_ON_SHIFT) & + PMC_BLINK_TIMER_DATA_ON_MASK; + val >>= PMC_BLINK_TIMER_DATA_OFF_SHIFT; + val &= PMC_BLINK_TIMER_DATA_OFF_MASK; + on_off += val; + /* each tick in the blink timer is 4 32KHz clocks */ + c->div = on_off * 4; + } else { + c->div = 1; + } + + if (c->mul != 0 && c->div != 0) { + rate *= c->mul; + rate += c->div - 1; /* round up */ + do_div(rate, c->div); + } + return rate; +} + +static int tegra20_blink_clk_enable(struct clk_hw *hw) +{ + u32 val; + + val = pmc_readl(PMC_DPD_PADS_ORIDE); + pmc_writel(val | PMC_DPD_PADS_ORIDE_BLINK_ENB, PMC_DPD_PADS_ORIDE); + + val = pmc_readl(PMC_CTRL); + pmc_writel(val | PMC_CTRL_BLINK_ENB, PMC_CTRL); + + return 0; +} + +static void tegra20_blink_clk_disable(struct clk_hw *hw) +{ + u32 val; + + val = pmc_readl(PMC_CTRL); + pmc_writel(val & ~PMC_CTRL_BLINK_ENB, PMC_CTRL); + + val = pmc_readl(PMC_DPD_PADS_ORIDE); + pmc_writel(val & ~PMC_DPD_PADS_ORIDE_BLINK_ENB, PMC_DPD_PADS_ORIDE); +} + +static int tegra20_blink_clk_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + + if (rate >= parent_rate) { + c->div = 1; + pmc_writel(0, c->reg); + } else { + unsigned int on_off; + u32 val; + + on_off = DIV_ROUND_UP(parent_rate / 8, rate); + c->div = on_off * 8; + + val = (on_off & PMC_BLINK_TIMER_DATA_ON_MASK) << + PMC_BLINK_TIMER_DATA_ON_SHIFT; + on_off &= PMC_BLINK_TIMER_DATA_OFF_MASK; + on_off <<= PMC_BLINK_TIMER_DATA_OFF_SHIFT; + val |= on_off; + val |= PMC_BLINK_TIMER_ENB; + pmc_writel(val, c->reg); + } + + return 0; +} + +static long tegra20_blink_clk_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + int div; + int mul; + long round_rate = *prate; + + mul = 1; + + if (rate >= *prate) { + div = 1; + } else { + div = DIV_ROUND_UP(*prate / 8, rate); + div *= 8; + } + + round_rate *= mul; + round_rate += div - 1; + do_div(round_rate, div); + + return round_rate; +} + +struct clk_ops tegra_blink_clk_ops = { + .is_enabled = tegra20_blink_clk_is_enabled, + .enable = tegra20_blink_clk_enable, + .disable = tegra20_blink_clk_disable, + .set_rate = tegra20_blink_clk_set_rate, + .round_rate = tegra20_blink_clk_round_rate, + .recalc_rate = tegra20_blink_clk_recalc_rate, +}; + +/* PLL Functions */ +static int tegra20_pll_clk_wait_for_lock(struct clk_tegra *c) +{ + udelay(c->u.pll.lock_delay); + return 0; +} + +static int tegra20_pll_clk_is_enabled(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u32 val = clk_readl(c->reg + PLL_BASE); + + c->state = (val & PLL_BASE_ENABLE) ? ON : OFF; + return c->state; +} + +static unsigned long tegra20_pll_clk_recalc_rate(struct clk_hw *hw, + unsigned long prate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u32 val = clk_readl(c->reg + PLL_BASE); + u64 rate = prate; + + if (c->flags & PLL_FIXED && !(val & PLL_BASE_OVERRIDE)) { + const struct clk_pll_freq_table *sel; + for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) { + if (sel->input_rate == prate && + sel->output_rate == c->u.pll.fixed_rate) { + c->mul = sel->n; + c->div = sel->m * sel->p; + break; + } + } + pr_err("Clock %s has unknown fixed frequency\n", + __clk_get_name(hw->clk)); + BUG(); + } else if (val & PLL_BASE_BYPASS) { + c->mul = 1; + c->div = 1; + } else { + c->mul = (val & PLL_BASE_DIVN_MASK) >> PLL_BASE_DIVN_SHIFT; + c->div = (val & PLL_BASE_DIVM_MASK) >> PLL_BASE_DIVM_SHIFT; + if (c->flags & PLLU) + c->div *= (val & PLLU_BASE_POST_DIV) ? 1 : 2; + else + c->div *= (val & PLL_BASE_DIVP_MASK) ? 2 : 1; + } + + if (c->mul != 0 && c->div != 0) { + rate *= c->mul; + rate += c->div - 1; /* round up */ + do_div(rate, c->div); + } + return rate; +} + +static int tegra20_pll_clk_enable(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u32 val; + pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk)); + + val = clk_readl(c->reg + PLL_BASE); + val &= ~PLL_BASE_BYPASS; + val |= PLL_BASE_ENABLE; + clk_writel(val, c->reg + PLL_BASE); + + tegra20_pll_clk_wait_for_lock(c); + + return 0; +} + +static void tegra20_pll_clk_disable(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u32 val; + pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk)); + + val = clk_readl(c->reg); + val &= ~(PLL_BASE_BYPASS | PLL_BASE_ENABLE); + clk_writel(val, c->reg); +} + +static int tegra20_pll_clk_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + unsigned long input_rate = parent_rate; + const struct clk_pll_freq_table *sel; + u32 val; + + pr_debug("%s: %s %lu\n", __func__, __clk_get_name(hw->clk), rate); + + if (c->flags & PLL_FIXED) { + int ret = 0; + if (rate != c->u.pll.fixed_rate) { + pr_err("%s: Can not change %s fixed rate %lu to %lu\n", + __func__, __clk_get_name(hw->clk), + c->u.pll.fixed_rate, rate); + ret = -EINVAL; + } + return ret; + } + + for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) { + if (sel->input_rate == input_rate && sel->output_rate == rate) { + c->mul = sel->n; + c->div = sel->m * sel->p; + + val = clk_readl(c->reg + PLL_BASE); + if (c->flags & PLL_FIXED) + val |= PLL_BASE_OVERRIDE; + val &= ~(PLL_BASE_DIVP_MASK | PLL_BASE_DIVN_MASK | + PLL_BASE_DIVM_MASK); + val |= (sel->m << PLL_BASE_DIVM_SHIFT) | + (sel->n << PLL_BASE_DIVN_SHIFT); + BUG_ON(sel->p < 1 || sel->p > 2); + if (c->flags & PLLU) { + if (sel->p == 1) + val |= PLLU_BASE_POST_DIV; + } else { + if (sel->p == 2) + val |= 1 << PLL_BASE_DIVP_SHIFT; + } + clk_writel(val, c->reg + PLL_BASE); + + if (c->flags & PLL_HAS_CPCON) { + val = clk_readl(c->reg + PLL_MISC(c)); + val &= ~PLL_MISC_CPCON_MASK; + val |= sel->cpcon << PLL_MISC_CPCON_SHIFT; + clk_writel(val, c->reg + PLL_MISC(c)); + } + + if (c->state == ON) + tegra20_pll_clk_enable(hw); + return 0; + } + } + return -EINVAL; +} + +static long tegra20_pll_clk_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + const struct clk_pll_freq_table *sel; + unsigned long input_rate = *prate; + u64 output_rate = *prate; + int mul; + int div; + + if (c->flags & PLL_FIXED) + return c->u.pll.fixed_rate; + + for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) + if (sel->input_rate == input_rate && sel->output_rate == rate) { + mul = sel->n; + div = sel->m * sel->p; + break; + } + + if (sel->input_rate == 0) + return -EINVAL; + + output_rate *= mul; + output_rate += div - 1; /* round up */ + do_div(output_rate, div); + + return output_rate; +} + +struct clk_ops tegra_pll_ops = { + .is_enabled = tegra20_pll_clk_is_enabled, + .enable = tegra20_pll_clk_enable, + .disable = tegra20_pll_clk_disable, + .set_rate = tegra20_pll_clk_set_rate, + .recalc_rate = tegra20_pll_clk_recalc_rate, + .round_rate = tegra20_pll_clk_round_rate, +}; + +static void tegra20_pllx_clk_init(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + + if (tegra_sku_id == 7) + c->max_rate = 750000000; +} + +struct clk_ops tegra_pllx_ops = { + .init = tegra20_pllx_clk_init, + .is_enabled = tegra20_pll_clk_is_enabled, + .enable = tegra20_pll_clk_enable, + .disable = tegra20_pll_clk_disable, + .set_rate = tegra20_pll_clk_set_rate, + .recalc_rate = tegra20_pll_clk_recalc_rate, + .round_rate = tegra20_pll_clk_round_rate, +}; + +static int tegra20_plle_clk_enable(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u32 val; + + pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk)); + + mdelay(1); + + val = clk_readl(c->reg + PLL_BASE); + if (!(val & PLLE_MISC_READY)) + return -EBUSY; + + val = clk_readl(c->reg + PLL_BASE); + val |= PLL_BASE_ENABLE | PLL_BASE_BYPASS; + clk_writel(val, c->reg + PLL_BASE); + + return 0; +} + +struct clk_ops tegra_plle_ops = { + .is_enabled = tegra20_pll_clk_is_enabled, + .enable = tegra20_plle_clk_enable, + .set_rate = tegra20_pll_clk_set_rate, + .recalc_rate = tegra20_pll_clk_recalc_rate, + .round_rate = tegra20_pll_clk_round_rate, +}; + +/* Clock divider ops */ +static int tegra20_pll_div_clk_is_enabled(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u32 val = clk_readl(c->reg); + + val >>= c->reg_shift; + c->state = (val & PLL_OUT_CLKEN) ? ON : OFF; + if (!(val & PLL_OUT_RESET_DISABLE)) + c->state = OFF; + return c->state; +} + +static unsigned long tegra20_pll_div_clk_recalc_rate(struct clk_hw *hw, + unsigned long prate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u64 rate = prate; + u32 val = clk_readl(c->reg); + u32 divu71; + + val >>= c->reg_shift; + + if (c->flags & DIV_U71) { + divu71 = (val & PLL_OUT_RATIO_MASK) >> PLL_OUT_RATIO_SHIFT; + c->div = (divu71 + 2); + c->mul = 2; + } else if (c->flags & DIV_2) { + c->div = 2; + c->mul = 1; + } else { + c->div = 1; + c->mul = 1; + } + + rate *= c->mul; + rate += c->div - 1; /* round up */ + do_div(rate, c->div); + + return rate; +} + +static int tegra20_pll_div_clk_enable(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + unsigned long flags; + u32 new_val; + u32 val; + + pr_debug("%s: %s\n", __func__, __clk_get_name(hw->clk)); + + if (c->flags & DIV_U71) { + spin_lock_irqsave(&clock_register_lock, flags); + val = clk_readl(c->reg); + new_val = val >> c->reg_shift; + new_val &= 0xFFFF; + + new_val |= PLL_OUT_CLKEN | PLL_OUT_RESET_DISABLE; + + val &= ~(0xFFFF << c->reg_shift); + val |= new_val << c->reg_shift; + clk_writel(val, c->reg); + spin_unlock_irqrestore(&clock_register_lock, flags); + return 0; + } else if (c->flags & DIV_2) { + BUG_ON(!(c->flags & PLLD)); + spin_lock_irqsave(&clock_register_lock, flags); + val = clk_readl(c->reg); + val &= ~PLLD_MISC_DIV_RST; + clk_writel(val, c->reg); + spin_unlock_irqrestore(&clock_register_lock, flags); + return 0; + } + return -EINVAL; +} + +static void tegra20_pll_div_clk_disable(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + unsigned long flags; + u32 new_val; + u32 val; + + pr_debug("%s: %s\n", __func__, __clk_get_name(hw->clk)); + + if (c->flags & DIV_U71) { + spin_lock_irqsave(&clock_register_lock, flags); + val = clk_readl(c->reg); + new_val = val >> c->reg_shift; + new_val &= 0xFFFF; + + new_val &= ~(PLL_OUT_CLKEN | PLL_OUT_RESET_DISABLE); + + val &= ~(0xFFFF << c->reg_shift); + val |= new_val << c->reg_shift; + clk_writel(val, c->reg); + spin_unlock_irqrestore(&clock_register_lock, flags); + } else if (c->flags & DIV_2) { + BUG_ON(!(c->flags & PLLD)); + spin_lock_irqsave(&clock_register_lock, flags); + val = clk_readl(c->reg); + val |= PLLD_MISC_DIV_RST; + clk_writel(val, c->reg); + spin_unlock_irqrestore(&clock_register_lock, flags); + } +} + +static int tegra20_pll_div_clk_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + unsigned long flags; + int divider_u71; + u32 new_val; + u32 val; + + pr_debug("%s: %s %lu\n", __func__, __clk_get_name(hw->clk), rate); + + if (c->flags & DIV_U71) { + divider_u71 = clk_div71_get_divider(parent_rate, rate); + if (divider_u71 >= 0) { + spin_lock_irqsave(&clock_register_lock, flags); + val = clk_readl(c->reg); + new_val = val >> c->reg_shift; + new_val &= 0xFFFF; + if (c->flags & DIV_U71_FIXED) + new_val |= PLL_OUT_OVERRIDE; + new_val &= ~PLL_OUT_RATIO_MASK; + new_val |= divider_u71 << PLL_OUT_RATIO_SHIFT; + + val &= ~(0xFFFF << c->reg_shift); + val |= new_val << c->reg_shift; + clk_writel(val, c->reg); + c->div = divider_u71 + 2; + c->mul = 2; + spin_unlock_irqrestore(&clock_register_lock, flags); + return 0; + } + } else if (c->flags & DIV_2) { + if (parent_rate == rate * 2) + return 0; + } + return -EINVAL; +} + +static long tegra20_pll_div_clk_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + unsigned long parent_rate = *prate; + int divider; + + pr_debug("%s: %s %lu\n", __func__, __clk_get_name(hw->clk), rate); + + if (c->flags & DIV_U71) { + divider = clk_div71_get_divider(parent_rate, rate); + if (divider < 0) + return divider; + return DIV_ROUND_UP(parent_rate * 2, divider + 2); + } else if (c->flags & DIV_2) { + return DIV_ROUND_UP(parent_rate, 2); + } + return -EINVAL; +} + +struct clk_ops tegra_pll_div_ops = { + .is_enabled = tegra20_pll_div_clk_is_enabled, + .enable = tegra20_pll_div_clk_enable, + .disable = tegra20_pll_div_clk_disable, + .set_rate = tegra20_pll_div_clk_set_rate, + .round_rate = tegra20_pll_div_clk_round_rate, + .recalc_rate = tegra20_pll_div_clk_recalc_rate, +}; + +/* Periph clk ops */ + +static int tegra20_periph_clk_is_enabled(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + + c->state = ON; + + if (!c->u.periph.clk_num) + goto out; + + if (!(clk_readl(CLK_OUT_ENB + PERIPH_CLK_TO_ENB_REG(c)) & + PERIPH_CLK_TO_ENB_BIT(c))) + c->state = OFF; + + if (!(c->flags & PERIPH_NO_RESET)) + if (clk_readl(RST_DEVICES + PERIPH_CLK_TO_ENB_REG(c)) & + PERIPH_CLK_TO_ENB_BIT(c)) + c->state = OFF; + +out: + return c->state; +} + +static int tegra20_periph_clk_enable(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + unsigned long flags; + u32 val; + + pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk)); + + if (!c->u.periph.clk_num) + return 0; + + tegra_periph_clk_enable_refcount[c->u.periph.clk_num]++; + if (tegra_periph_clk_enable_refcount[c->u.periph.clk_num] > 1) + return 0; + + spin_lock_irqsave(&clock_register_lock, flags); + + clk_writel(PERIPH_CLK_TO_ENB_BIT(c), + CLK_OUT_ENB_SET + PERIPH_CLK_TO_ENB_SET_REG(c)); + if (!(c->flags & PERIPH_NO_RESET) && !(c->flags & PERIPH_MANUAL_RESET)) + clk_writel(PERIPH_CLK_TO_ENB_BIT(c), + RST_DEVICES_CLR + PERIPH_CLK_TO_ENB_SET_REG(c)); + if (c->flags & PERIPH_EMC_ENB) { + /* The EMC peripheral clock has 2 extra enable bits */ + /* FIXME: Do they need to be disabled? */ + val = clk_readl(c->reg); + val |= 0x3 << 24; + clk_writel(val, c->reg); + } + + spin_unlock_irqrestore(&clock_register_lock, flags); + + return 0; +} + +static void tegra20_periph_clk_disable(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + unsigned long flags; + + pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk)); + + if (!c->u.periph.clk_num) + return; + + tegra_periph_clk_enable_refcount[c->u.periph.clk_num]--; + + if (tegra_periph_clk_enable_refcount[c->u.periph.clk_num] > 0) + return; + + spin_lock_irqsave(&clock_register_lock, flags); + + clk_writel(PERIPH_CLK_TO_ENB_BIT(c), + CLK_OUT_ENB_CLR + PERIPH_CLK_TO_ENB_SET_REG(c)); + + spin_unlock_irqrestore(&clock_register_lock, flags); +} + +void tegra2_periph_clk_reset(struct clk_hw *hw, bool assert) +{ + struct clk_tegra *c = to_clk_tegra(hw); + unsigned long base = assert ? RST_DEVICES_SET : RST_DEVICES_CLR; + + pr_debug("%s %s on clock %s\n", __func__, + assert ? "assert" : "deassert", __clk_get_name(hw->clk)); + + BUG_ON(!c->u.periph.clk_num); + + if (!(c->flags & PERIPH_NO_RESET)) + clk_writel(PERIPH_CLK_TO_ENB_BIT(c), + base + PERIPH_CLK_TO_ENB_SET_REG(c)); +} + +static int tegra20_periph_clk_set_parent(struct clk_hw *hw, u8 index) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u32 val; + u32 mask; + u32 shift; + + pr_debug("%s: %s %d\n", __func__, __clk_get_name(hw->clk), index); + + if (c->flags & MUX_PWM) { + shift = PERIPH_CLK_SOURCE_PWM_SHIFT; + mask = PERIPH_CLK_SOURCE_PWM_MASK; + } else { + shift = PERIPH_CLK_SOURCE_SHIFT; + mask = PERIPH_CLK_SOURCE_MASK; + } + + val = clk_readl(c->reg); + val &= ~mask; + val |= (index) << shift; + + clk_writel(val, c->reg); + + return 0; +} + +static u8 tegra20_periph_clk_get_parent(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u32 val = clk_readl(c->reg); + u32 mask; + u32 shift; + + if (c->flags & MUX_PWM) { + shift = PERIPH_CLK_SOURCE_PWM_SHIFT; + mask = PERIPH_CLK_SOURCE_PWM_MASK; + } else { + shift = PERIPH_CLK_SOURCE_SHIFT; + mask = PERIPH_CLK_SOURCE_MASK; + } + + if (c->flags & MUX) + return (val & mask) >> shift; + else + return 0; +} + +static unsigned long tegra20_periph_clk_recalc_rate(struct clk_hw *hw, + unsigned long prate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + unsigned long rate = prate; + u32 val = clk_readl(c->reg); + + if (c->flags & DIV_U71) { + u32 divu71 = val & PERIPH_CLK_SOURCE_DIVU71_MASK; + c->div = divu71 + 2; + c->mul = 2; + } else if (c->flags & DIV_U16) { + u32 divu16 = val & PERIPH_CLK_SOURCE_DIVU16_MASK; + c->div = divu16 + 1; + c->mul = 1; + } else { + c->div = 1; + c->mul = 1; + return rate; + } + + if (c->mul != 0 && c->div != 0) { + rate *= c->mul; + rate += c->div - 1; /* round up */ + do_div(rate, c->div); + } + + return rate; +} + +static int tegra20_periph_clk_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u32 val; + int divider; + + val = clk_readl(c->reg); + + if (c->flags & DIV_U71) { + divider = clk_div71_get_divider(parent_rate, rate); + + if (divider >= 0) { + val = clk_readl(c->reg); + val &= ~PERIPH_CLK_SOURCE_DIVU71_MASK; + val |= divider; + clk_writel(val, c->reg); + c->div = divider + 2; + c->mul = 2; + return 0; + } + } else if (c->flags & DIV_U16) { + divider = clk_div16_get_divider(parent_rate, rate); + if (divider >= 0) { + val = clk_readl(c->reg); + val &= ~PERIPH_CLK_SOURCE_DIVU16_MASK; + val |= divider; + clk_writel(val, c->reg); + c->div = divider + 1; + c->mul = 1; + return 0; + } + } else if (parent_rate <= rate) { + c->div = 1; + c->mul = 1; + return 0; + } + + return -EINVAL; +} + +static long tegra20_periph_clk_round_rate(struct clk_hw *hw, + unsigned long rate, unsigned long *prate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + unsigned long parent_rate = __clk_get_rate(__clk_get_parent(hw->clk)); + int divider; + + pr_debug("%s: %s %lu\n", __func__, __clk_get_name(hw->clk), rate); + + if (prate) + parent_rate = *prate; + + if (c->flags & DIV_U71) { + divider = clk_div71_get_divider(parent_rate, rate); + if (divider < 0) + return divider; + + return DIV_ROUND_UP(parent_rate * 2, divider + 2); + } else if (c->flags & DIV_U16) { + divider = clk_div16_get_divider(parent_rate, rate); + if (divider < 0) + return divider; + return DIV_ROUND_UP(parent_rate, divider + 1); + } + return -EINVAL; +} + +struct clk_ops tegra_periph_clk_ops = { + .is_enabled = tegra20_periph_clk_is_enabled, + .enable = tegra20_periph_clk_enable, + .disable = tegra20_periph_clk_disable, + .set_parent = tegra20_periph_clk_set_parent, + .get_parent = tegra20_periph_clk_get_parent, + .set_rate = tegra20_periph_clk_set_rate, + .round_rate = tegra20_periph_clk_round_rate, + .recalc_rate = tegra20_periph_clk_recalc_rate, +}; + +/* External memory controller clock ops */ +static void tegra20_emc_clk_init(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + c->max_rate = __clk_get_rate(hw->clk); +} + +static long tegra20_emc_clk_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + long emc_rate; + long clk_rate; + + /* + * The slowest entry in the EMC clock table that is at least as + * fast as rate. + */ + emc_rate = tegra_emc_round_rate(rate); + if (emc_rate < 0) + return c->max_rate; + + /* + * The fastest rate the PLL will generate that is at most the + * requested rate. + */ + clk_rate = tegra20_periph_clk_round_rate(hw, emc_rate, NULL); + + /* + * If this fails, and emc_rate > clk_rate, it's because the maximum + * rate in the EMC tables is larger than the maximum rate of the EMC + * clock. The EMC clock's max rate is the rate it was running when the + * kernel booted. Such a mismatch is probably due to using the wrong + * BCT, i.e. using a Tegra20 BCT with an EMC table written for Tegra25. + */ + WARN_ONCE(emc_rate != clk_rate, + "emc_rate %ld != clk_rate %ld", + emc_rate, clk_rate); + + return emc_rate; +} + +static int tegra20_emc_clk_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + int ret; + + /* + * The Tegra2 memory controller has an interlock with the clock + * block that allows memory shadowed registers to be updated, + * and then transfer them to the main registers at the same + * time as the clock update without glitches. + */ + ret = tegra_emc_set_rate(rate); + if (ret < 0) + return ret; + + ret = tegra20_periph_clk_set_rate(hw, rate, parent_rate); + udelay(1); + + return ret; +} + +struct clk_ops tegra_emc_clk_ops = { + .init = tegra20_emc_clk_init, + .is_enabled = tegra20_periph_clk_is_enabled, + .enable = tegra20_periph_clk_enable, + .disable = tegra20_periph_clk_disable, + .set_parent = tegra20_periph_clk_set_parent, + .get_parent = tegra20_periph_clk_get_parent, + .set_rate = tegra20_emc_clk_set_rate, + .round_rate = tegra20_emc_clk_round_rate, + .recalc_rate = tegra20_periph_clk_recalc_rate, +}; + +/* Clock doubler ops */ +static int tegra20_clk_double_is_enabled(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + + c->state = ON; + + if (!c->u.periph.clk_num) + goto out; + + if (!(clk_readl(CLK_OUT_ENB + PERIPH_CLK_TO_ENB_REG(c)) & + PERIPH_CLK_TO_ENB_BIT(c))) + c->state = OFF; + +out: + return c->state; +}; + +static unsigned long tegra20_clk_double_recalc_rate(struct clk_hw *hw, + unsigned long prate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u64 rate = prate; + + c->mul = 2; + c->div = 1; + + rate *= c->mul; + rate += c->div - 1; /* round up */ + do_div(rate, c->div); + + return rate; +} + +static long tegra20_clk_double_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + unsigned long output_rate = *prate; + + do_div(output_rate, 2); + return output_rate; +} + +static int tegra20_clk_double_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + if (rate != 2 * parent_rate) + return -EINVAL; + return 0; +} + +struct clk_ops tegra_clk_double_ops = { + .is_enabled = tegra20_clk_double_is_enabled, + .enable = tegra20_periph_clk_enable, + .disable = tegra20_periph_clk_disable, + .set_rate = tegra20_clk_double_set_rate, + .recalc_rate = tegra20_clk_double_recalc_rate, + .round_rate = tegra20_clk_double_round_rate, +}; + +/* Audio sync clock ops */ +static int tegra20_audio_sync_clk_is_enabled(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u32 val = clk_readl(c->reg); + + c->state = (val & (1<<4)) ? OFF : ON; + return c->state; +} + +static int tegra20_audio_sync_clk_enable(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + + clk_writel(0, c->reg); + return 0; +} + +static void tegra20_audio_sync_clk_disable(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + clk_writel(1, c->reg); +} + +static u8 tegra20_audio_sync_clk_get_parent(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u32 val = clk_readl(c->reg); + int source; + + source = val & 0xf; + return source; +} + +static int tegra20_audio_sync_clk_set_parent(struct clk_hw *hw, u8 index) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u32 val; + + val = clk_readl(c->reg); + val &= ~0xf; + val |= index; + + clk_writel(val, c->reg); + + return 0; +} + +struct clk_ops tegra_audio_sync_clk_ops = { + .is_enabled = tegra20_audio_sync_clk_is_enabled, + .enable = tegra20_audio_sync_clk_enable, + .disable = tegra20_audio_sync_clk_disable, + .set_parent = tegra20_audio_sync_clk_set_parent, + .get_parent = tegra20_audio_sync_clk_get_parent, +}; + +/* cdev1 and cdev2 (dap_mclk1 and dap_mclk2) ops */ + +static int tegra20_cdev_clk_is_enabled(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + /* We could un-tristate the cdev1 or cdev2 pingroup here; this is + * currently done in the pinmux code. */ + c->state = ON; + + BUG_ON(!c->u.periph.clk_num); + + if (!(clk_readl(CLK_OUT_ENB + PERIPH_CLK_TO_ENB_REG(c)) & + PERIPH_CLK_TO_ENB_BIT(c))) + c->state = OFF; + return c->state; +} + +static int tegra20_cdev_clk_enable(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + BUG_ON(!c->u.periph.clk_num); + + clk_writel(PERIPH_CLK_TO_ENB_BIT(c), + CLK_OUT_ENB_SET + PERIPH_CLK_TO_ENB_SET_REG(c)); + return 0; +} + +static void tegra20_cdev_clk_disable(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + BUG_ON(!c->u.periph.clk_num); + + clk_writel(PERIPH_CLK_TO_ENB_BIT(c), + CLK_OUT_ENB_CLR + PERIPH_CLK_TO_ENB_SET_REG(c)); +} + +static unsigned long tegra20_cdev_recalc_rate(struct clk_hw *hw, + unsigned long prate) +{ + return to_clk_tegra(hw)->fixed_rate; +} + +struct clk_ops tegra_cdev_clk_ops = { + .is_enabled = tegra20_cdev_clk_is_enabled, + .enable = tegra20_cdev_clk_enable, + .disable = tegra20_cdev_clk_disable, + .recalc_rate = tegra20_cdev_recalc_rate, +}; + +/* Tegra20 CPU clock and reset control functions */ +static void tegra20_wait_cpu_in_reset(u32 cpu) +{ + unsigned int reg; + + do { + reg = readl(reg_clk_base + + TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET); + cpu_relax(); + } while (!(reg & (1 << cpu))); /* check CPU been reset or not */ + + return; +} + +static void tegra20_put_cpu_in_reset(u32 cpu) +{ + writel(CPU_RESET(cpu), + reg_clk_base + TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET); + dmb(); +} + +static void tegra20_cpu_out_of_reset(u32 cpu) +{ + writel(CPU_RESET(cpu), + reg_clk_base + TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_CLR); + wmb(); +} + +static void tegra20_enable_cpu_clock(u32 cpu) +{ + unsigned int reg; + + reg = readl(reg_clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX); + writel(reg & ~CPU_CLOCK(cpu), + reg_clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX); + barrier(); + reg = readl(reg_clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX); +} + +static void tegra20_disable_cpu_clock(u32 cpu) +{ + unsigned int reg; + + reg = readl(reg_clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX); + writel(reg | CPU_CLOCK(cpu), + reg_clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX); +} + +static struct tegra_cpu_car_ops tegra20_cpu_car_ops = { + .wait_for_reset = tegra20_wait_cpu_in_reset, + .put_in_reset = tegra20_put_cpu_in_reset, + .out_of_reset = tegra20_cpu_out_of_reset, + .enable_clock = tegra20_enable_cpu_clock, + .disable_clock = tegra20_disable_cpu_clock, +}; + +void __init tegra20_cpu_car_ops_init(void) +{ + tegra_cpu_car_ops = &tegra20_cpu_car_ops; +} diff --git a/arch/arm/mach-tegra/tegra20_clocks.h b/arch/arm/mach-tegra/tegra20_clocks.h new file mode 100644 index 000000000000..8bfd31bcc490 --- /dev/null +++ b/arch/arm/mach-tegra/tegra20_clocks.h @@ -0,0 +1,42 @@ +/* + * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef __MACH_TEGRA20_CLOCK_H +#define __MACH_TEGRA20_CLOCK_H + +extern struct clk_ops tegra_clk_32k_ops; +extern struct clk_ops tegra_pll_ops; +extern struct clk_ops tegra_clk_m_ops; +extern struct clk_ops tegra_pll_div_ops; +extern struct clk_ops tegra_pllx_ops; +extern struct clk_ops tegra_plle_ops; +extern struct clk_ops tegra_clk_double_ops; +extern struct clk_ops tegra_cdev_clk_ops; +extern struct clk_ops tegra_audio_sync_clk_ops; +extern struct clk_ops tegra_super_ops; +extern struct clk_ops tegra_cpu_ops; +extern struct clk_ops tegra_twd_ops; +extern struct clk_ops tegra_cop_ops; +extern struct clk_ops tegra_bus_ops; +extern struct clk_ops tegra_blink_clk_ops; +extern struct clk_ops tegra_emc_clk_ops; +extern struct clk_ops tegra_periph_clk_ops; +extern struct clk_ops tegra_clk_shared_bus_ops; + +void tegra2_periph_clk_reset(struct clk_hw *hw, bool assert); +void tegra2_cop_clk_reset(struct clk_hw *hw, bool assert); + +#endif diff --git a/arch/arm/mach-tegra/tegra20_clocks_data.c b/arch/arm/mach-tegra/tegra20_clocks_data.c new file mode 100644 index 000000000000..e81dcd239c95 --- /dev/null +++ b/arch/arm/mach-tegra/tegra20_clocks_data.c @@ -0,0 +1,1144 @@ +/* + * arch/arm/mach-tegra/tegra2_clocks.c + * + * Copyright (C) 2010 Google, Inc. + * Copyright (c) 2012 NVIDIA CORPORATION. All rights reserved. + * + * Author: + * Colin Cross <ccross@google.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <linux/clk-private.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/list.h> +#include <linux/spinlock.h> +#include <linux/delay.h> +#include <linux/io.h> +#include <linux/clk.h> + +#include <mach/iomap.h> +#include <mach/suspend.h> + +#include "clock.h" +#include "fuse.h" +#include "tegra2_emc.h" +#include "tegra20_clocks.h" +#include "tegra_cpu_car.h" + +/* Clock definitions */ + +#define DEFINE_CLK_TEGRA(_name, _rate, _ops, _flags, \ + _parent_names, _parents, _parent) \ + static struct clk tegra_##_name = { \ + .hw = &tegra_##_name##_hw.hw, \ + .name = #_name, \ + .rate = _rate, \ + .ops = _ops, \ + .flags = _flags, \ + .parent_names = _parent_names, \ + .parents = _parents, \ + .num_parents = ARRAY_SIZE(_parent_names), \ + .parent = _parent, \ + }; + +static struct clk tegra_clk_32k; +static struct clk_tegra tegra_clk_32k_hw = { + .hw = { + .clk = &tegra_clk_32k, + }, + .fixed_rate = 32768, +}; + +static struct clk tegra_clk_32k = { + .name = "clk_32k", + .rate = 32768, + .ops = &tegra_clk_32k_ops, + .hw = &tegra_clk_32k_hw.hw, + .flags = CLK_IS_ROOT, +}; + +static struct clk tegra_clk_m; +static struct clk_tegra tegra_clk_m_hw = { + .hw = { + .clk = &tegra_clk_m, + }, + .flags = ENABLE_ON_INIT, + .reg = 0x1fc, + .reg_shift = 28, + .max_rate = 26000000, + .fixed_rate = 0, +}; + +static struct clk tegra_clk_m = { + .name = "clk_m", + .ops = &tegra_clk_m_ops, + .hw = &tegra_clk_m_hw.hw, + .flags = CLK_IS_ROOT, +}; + +#define DEFINE_PLL(_name, _flags, _reg, _max_rate, _input_min, \ + _input_max, _cf_min, _cf_max, _vco_min, \ + _vco_max, _freq_table, _lock_delay, _ops, \ + _fixed_rate, _parent) \ + static const char *tegra_##_name##_parent_names[] = { \ + #_parent, \ + }; \ + static struct clk *tegra_##_name##_parents[] = { \ + &tegra_##_parent, \ + }; \ + static struct clk tegra_##_name; \ + static struct clk_tegra tegra_##_name##_hw = { \ + .hw = { \ + .clk = &tegra_##_name, \ + }, \ + .flags = _flags, \ + .reg = _reg, \ + .max_rate = _max_rate, \ + .u.pll = { \ + .input_min = _input_min, \ + .input_max = _input_max, \ + .cf_min = _cf_min, \ + .cf_max = _cf_max, \ + .vco_min = _vco_min, \ + .vco_max = _vco_max, \ + .freq_table = _freq_table, \ + .lock_delay = _lock_delay, \ + .fixed_rate = _fixed_rate, \ + }, \ + }; \ + static struct clk tegra_##_name = { \ + .name = #_name, \ + .ops = &_ops, \ + .hw = &tegra_##_name##_hw.hw, \ + .parent = &tegra_##_parent, \ + .parent_names = tegra_##_name##_parent_names, \ + .parents = tegra_##_name##_parents, \ + .num_parents = 1, \ + }; + +#define DEFINE_PLL_OUT(_name, _flags, _reg, _reg_shift, \ + _max_rate, _ops, _parent, _clk_flags) \ + static const char *tegra_##_name##_parent_names[] = { \ + #_parent, \ + }; \ + static struct clk *tegra_##_name##_parents[] = { \ + &tegra_##_parent, \ + }; \ + static struct clk tegra_##_name; \ + static struct clk_tegra tegra_##_name##_hw = { \ + .hw = { \ + .clk = &tegra_##_name, \ + }, \ + .flags = _flags, \ + .reg = _reg, \ + .max_rate = _max_rate, \ + .reg_shift = _reg_shift, \ + }; \ + static struct clk tegra_##_name = { \ + .name = #_name, \ + .ops = &tegra_pll_div_ops, \ + .hw = &tegra_##_name##_hw.hw, \ + .parent = &tegra_##_parent, \ + .parent_names = tegra_##_name##_parent_names, \ + .parents = tegra_##_name##_parents, \ + .num_parents = 1, \ + .flags = _clk_flags, \ + }; + + +static struct clk_pll_freq_table tegra_pll_s_freq_table[] = { + {32768, 12000000, 366, 1, 1, 0}, + {32768, 13000000, 397, 1, 1, 0}, + {32768, 19200000, 586, 1, 1, 0}, + {32768, 26000000, 793, 1, 1, 0}, + {0, 0, 0, 0, 0, 0}, +}; + +DEFINE_PLL(pll_s, PLL_ALT_MISC_REG, 0xf0, 26000000, 32768, 32768, 0, + 0, 12000000, 26000000, tegra_pll_s_freq_table, 300, + tegra_pll_ops, 0, clk_32k); + +static struct clk_pll_freq_table tegra_pll_c_freq_table[] = { + { 12000000, 600000000, 600, 12, 1, 8 }, + { 13000000, 600000000, 600, 13, 1, 8 }, + { 19200000, 600000000, 500, 16, 1, 6 }, + { 26000000, 600000000, 600, 26, 1, 8 }, + { 0, 0, 0, 0, 0, 0 }, +}; + +DEFINE_PLL(pll_c, PLL_HAS_CPCON, 0x80, 600000000, 2000000, 31000000, 1000000, + 6000000, 20000000, 1400000000, tegra_pll_c_freq_table, 300, + tegra_pll_ops, 0, clk_m); + +DEFINE_PLL_OUT(pll_c_out1, DIV_U71, 0x84, 0, 600000000, + tegra_pll_div_ops, pll_c, 0); + +static struct clk_pll_freq_table tegra_pll_m_freq_table[] = { + { 12000000, 666000000, 666, 12, 1, 8}, + { 13000000, 666000000, 666, 13, 1, 8}, + { 19200000, 666000000, 555, 16, 1, 8}, + { 26000000, 666000000, 666, 26, 1, 8}, + { 12000000, 600000000, 600, 12, 1, 8}, + { 13000000, 600000000, 600, 13, 1, 8}, + { 19200000, 600000000, 375, 12, 1, 6}, + { 26000000, 600000000, 600, 26, 1, 8}, + { 0, 0, 0, 0, 0, 0 }, +}; + +DEFINE_PLL(pll_m, PLL_HAS_CPCON, 0x90, 800000000, 2000000, 31000000, 1000000, + 6000000, 20000000, 1200000000, tegra_pll_m_freq_table, 300, + tegra_pll_ops, 0, clk_m); + +DEFINE_PLL_OUT(pll_m_out1, DIV_U71, 0x94, 0, 600000000, + tegra_pll_div_ops, pll_m, 0); + +static struct clk_pll_freq_table tegra_pll_p_freq_table[] = { + { 12000000, 216000000, 432, 12, 2, 8}, + { 13000000, 216000000, 432, 13, 2, 8}, + { 19200000, 216000000, 90, 4, 2, 1}, + { 26000000, 216000000, 432, 26, 2, 8}, + { 12000000, 432000000, 432, 12, 1, 8}, + { 13000000, 432000000, 432, 13, 1, 8}, + { 19200000, 432000000, 90, 4, 1, 1}, + { 26000000, 432000000, 432, 26, 1, 8}, + { 0, 0, 0, 0, 0, 0 }, +}; + + +DEFINE_PLL(pll_p, ENABLE_ON_INIT | PLL_FIXED | PLL_HAS_CPCON, 0xa0, 432000000, + 2000000, 31000000, 1000000, 6000000, 20000000, 1400000000, + tegra_pll_p_freq_table, 300, tegra_pll_ops, 216000000, clk_m); + +DEFINE_PLL_OUT(pll_p_out1, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa4, 0, + 432000000, tegra_pll_div_ops, pll_p, 0); +DEFINE_PLL_OUT(pll_p_out2, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa4, 16, + 432000000, tegra_pll_div_ops, pll_p, 0); +DEFINE_PLL_OUT(pll_p_out3, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa8, 0, + 432000000, tegra_pll_div_ops, pll_p, 0); +DEFINE_PLL_OUT(pll_p_out4, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa8, 16, + 432000000, tegra_pll_div_ops, pll_p, 0); + +static struct clk_pll_freq_table tegra_pll_a_freq_table[] = { + { 28800000, 56448000, 49, 25, 1, 1}, + { 28800000, 73728000, 64, 25, 1, 1}, + { 28800000, 24000000, 5, 6, 1, 1}, + { 0, 0, 0, 0, 0, 0 }, +}; + +DEFINE_PLL(pll_a, PLL_HAS_CPCON, 0xb0, 73728000, 2000000, 31000000, 1000000, + 6000000, 20000000, 1400000000, tegra_pll_a_freq_table, 300, + tegra_pll_ops, 0, pll_p_out1); + +DEFINE_PLL_OUT(pll_a_out0, DIV_U71, 0xb4, 0, 73728000, + tegra_pll_div_ops, pll_a, 0); + +static struct clk_pll_freq_table tegra_pll_d_freq_table[] = { + { 12000000, 216000000, 216, 12, 1, 4}, + { 13000000, 216000000, 216, 13, 1, 4}, + { 19200000, 216000000, 135, 12, 1, 3}, + { 26000000, 216000000, 216, 26, 1, 4}, + + { 12000000, 594000000, 594, 12, 1, 8}, + { 13000000, 594000000, 594, 13, 1, 8}, + { 19200000, 594000000, 495, 16, 1, 8}, + { 26000000, 594000000, 594, 26, 1, 8}, + + { 12000000, 1000000000, 1000, 12, 1, 12}, + { 13000000, 1000000000, 1000, 13, 1, 12}, + { 19200000, 1000000000, 625, 12, 1, 8}, + { 26000000, 1000000000, 1000, 26, 1, 12}, + + { 0, 0, 0, 0, 0, 0 }, +}; + +DEFINE_PLL(pll_d, PLL_HAS_CPCON | PLLD, 0xd0, 1000000000, 2000000, 40000000, + 1000000, 6000000, 40000000, 1000000000, tegra_pll_d_freq_table, + 1000, tegra_pll_ops, 0, clk_m); + +DEFINE_PLL_OUT(pll_d_out0, DIV_2 | PLLD, 0, 0, 500000000, + tegra_pll_div_ops, pll_d, CLK_SET_RATE_PARENT); + +static struct clk_pll_freq_table tegra_pll_u_freq_table[] = { + { 12000000, 480000000, 960, 12, 2, 0}, + { 13000000, 480000000, 960, 13, 2, 0}, + { 19200000, 480000000, 200, 4, 2, 0}, + { 26000000, 480000000, 960, 26, 2, 0}, + { 0, 0, 0, 0, 0, 0 }, +}; + +DEFINE_PLL(pll_u, PLLU, 0xc0, 480000000, 2000000, 40000000, 1000000, 6000000, + 48000000, 960000000, tegra_pll_u_freq_table, 1000, + tegra_pll_ops, 0, clk_m); + +static struct clk_pll_freq_table tegra_pll_x_freq_table[] = { + /* 1 GHz */ + { 12000000, 1000000000, 1000, 12, 1, 12}, + { 13000000, 1000000000, 1000, 13, 1, 12}, + { 19200000, 1000000000, 625, 12, 1, 8}, + { 26000000, 1000000000, 1000, 26, 1, 12}, + + /* 912 MHz */ + { 12000000, 912000000, 912, 12, 1, 12}, + { 13000000, 912000000, 912, 13, 1, 12}, + { 19200000, 912000000, 760, 16, 1, 8}, + { 26000000, 912000000, 912, 26, 1, 12}, + + /* 816 MHz */ + { 12000000, 816000000, 816, 12, 1, 12}, + { 13000000, 816000000, 816, 13, 1, 12}, + { 19200000, 816000000, 680, 16, 1, 8}, + { 26000000, 816000000, 816, 26, 1, 12}, + + /* 760 MHz */ + { 12000000, 760000000, 760, 12, 1, 12}, + { 13000000, 760000000, 760, 13, 1, 12}, + { 19200000, 760000000, 950, 24, 1, 8}, + { 26000000, 760000000, 760, 26, 1, 12}, + + /* 750 MHz */ + { 12000000, 750000000, 750, 12, 1, 12}, + { 13000000, 750000000, 750, 13, 1, 12}, + { 19200000, 750000000, 625, 16, 1, 8}, + { 26000000, 750000000, 750, 26, 1, 12}, + + /* 608 MHz */ + { 12000000, 608000000, 608, 12, 1, 12}, + { 13000000, 608000000, 608, 13, 1, 12}, + { 19200000, 608000000, 380, 12, 1, 8}, + { 26000000, 608000000, 608, 26, 1, 12}, + + /* 456 MHz */ + { 12000000, 456000000, 456, 12, 1, 12}, + { 13000000, 456000000, 456, 13, 1, 12}, + { 19200000, 456000000, 380, 16, 1, 8}, + { 26000000, 456000000, 456, 26, 1, 12}, + + /* 312 MHz */ + { 12000000, 312000000, 312, 12, 1, 12}, + { 13000000, 312000000, 312, 13, 1, 12}, + { 19200000, 312000000, 260, 16, 1, 8}, + { 26000000, 312000000, 312, 26, 1, 12}, + + { 0, 0, 0, 0, 0, 0 }, +}; + +DEFINE_PLL(pll_x, PLL_HAS_CPCON | PLL_ALT_MISC_REG, 0xe0, 1000000000, 2000000, + 31000000, 1000000, 6000000, 20000000, 1200000000, + tegra_pll_x_freq_table, 300, tegra_pllx_ops, 0, clk_m); + +static struct clk_pll_freq_table tegra_pll_e_freq_table[] = { + { 12000000, 100000000, 200, 24, 1, 0 }, + { 0, 0, 0, 0, 0, 0 }, +}; + +DEFINE_PLL(pll_e, PLL_ALT_MISC_REG, 0xe8, 100000000, 12000000, 12000000, 0, 0, + 0, 0, tegra_pll_e_freq_table, 0, tegra_plle_ops, 0, clk_m); + +static const char *tegra_common_parent_names[] = { + "clk_m", +}; + +static struct clk *tegra_common_parents[] = { + &tegra_clk_m, +}; + +static struct clk tegra_clk_d; +static struct clk_tegra tegra_clk_d_hw = { + .hw = { + .clk = &tegra_clk_d, + }, + .flags = PERIPH_NO_RESET, + .reg = 0x34, + .reg_shift = 12, + .max_rate = 52000000, + .u.periph = { + .clk_num = 90, + }, +}; + +static struct clk tegra_clk_d = { + .name = "clk_d", + .hw = &tegra_clk_d_hw.hw, + .ops = &tegra_clk_double_ops, + .parent = &tegra_clk_m, + .parent_names = tegra_common_parent_names, + .parents = tegra_common_parents, + .num_parents = ARRAY_SIZE(tegra_common_parent_names), +}; + +static struct clk tegra_cdev1; +static struct clk_tegra tegra_cdev1_hw = { + .hw = { + .clk = &tegra_cdev1, + }, + .fixed_rate = 26000000, + .u.periph = { + .clk_num = 94, + }, +}; +static struct clk tegra_cdev1 = { + .name = "cdev1", + .hw = &tegra_cdev1_hw.hw, + .ops = &tegra_cdev_clk_ops, + .flags = CLK_IS_ROOT, +}; + +/* dap_mclk2, belongs to the cdev2 pingroup. */ +static struct clk tegra_cdev2; +static struct clk_tegra tegra_cdev2_hw = { + .hw = { + .clk = &tegra_cdev2, + }, + .fixed_rate = 26000000, + .u.periph = { + .clk_num = 93, + }, +}; +static struct clk tegra_cdev2 = { + .name = "cdev2", + .hw = &tegra_cdev2_hw.hw, + .ops = &tegra_cdev_clk_ops, + .flags = CLK_IS_ROOT, +}; + +/* initialized before peripheral clocks */ +static struct clk_mux_sel mux_audio_sync_clk[8+1]; +static const struct audio_sources { + const char *name; + int value; +} mux_audio_sync_clk_sources[] = { + { .name = "spdif_in", .value = 0 }, + { .name = "i2s1", .value = 1 }, + { .name = "i2s2", .value = 2 }, + { .name = "pll_a_out0", .value = 4 }, +#if 0 /* FIXME: not implemented */ + { .name = "ac97", .value = 3 }, + { .name = "ext_audio_clk2", .value = 5 }, + { .name = "ext_audio_clk1", .value = 6 }, + { .name = "ext_vimclk", .value = 7 }, +#endif + { NULL, 0 } +}; + +static const char *audio_parent_names[] = { + "spdif_in", + "i2s1", + "i2s2", + "dummy", + "pll_a_out0", + "dummy", + "dummy", + "dummy", +}; + +static struct clk *audio_parents[] = { + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, +}; + +static struct clk tegra_audio; +static struct clk_tegra tegra_audio_hw = { + .hw = { + .clk = &tegra_audio, + }, + .reg = 0x38, + .max_rate = 73728000, +}; +DEFINE_CLK_TEGRA(audio, 0, &tegra_audio_sync_clk_ops, 0, audio_parent_names, + audio_parents, NULL); + +static const char *audio_2x_parent_names[] = { + "audio", +}; + +static struct clk *audio_2x_parents[] = { + &tegra_audio, +}; + +static struct clk tegra_audio_2x; +static struct clk_tegra tegra_audio_2x_hw = { + .hw = { + .clk = &tegra_audio_2x, + }, + .flags = PERIPH_NO_RESET, + .max_rate = 48000000, + .reg = 0x34, + .reg_shift = 8, + .u.periph = { + .clk_num = 89, + }, +}; +DEFINE_CLK_TEGRA(audio_2x, 0, &tegra_clk_double_ops, 0, audio_2x_parent_names, + audio_2x_parents, &tegra_audio); + +static struct clk_lookup tegra_audio_clk_lookups[] = { + { .con_id = "audio", .clk = &tegra_audio }, + { .con_id = "audio_2x", .clk = &tegra_audio_2x } +}; + +/* This is called after peripheral clocks are initialized, as the + * audio_sync clock depends on some of the peripheral clocks. + */ + +static void init_audio_sync_clock_mux(void) +{ + int i; + struct clk_mux_sel *sel = mux_audio_sync_clk; + const struct audio_sources *src = mux_audio_sync_clk_sources; + struct clk_lookup *lookup; + + for (i = 0; src->name; i++, sel++, src++) { + sel->input = tegra_get_clock_by_name(src->name); + if (!sel->input) + pr_err("%s: could not find clk %s\n", __func__, + src->name); + audio_parents[src->value] = sel->input; + sel->value = src->value; + } + + lookup = tegra_audio_clk_lookups; + for (i = 0; i < ARRAY_SIZE(tegra_audio_clk_lookups); i++, lookup++) { + struct clk *c = lookup->clk; + struct clk_tegra *clk = to_clk_tegra(c->hw); + __clk_init(NULL, c); + INIT_LIST_HEAD(&clk->shared_bus_list); + clk->lookup.con_id = lookup->con_id; + clk->lookup.clk = c; + clkdev_add(&clk->lookup); + tegra_clk_add(c); + } +} + +static const char *mux_cclk[] = { + "clk_m", + "pll_c", + "clk_32k", + "pll_m", + "pll_p", + "pll_p_out4", + "pll_p_out3", + "clk_d", + "pll_x", +}; + + +static struct clk *mux_cclk_p[] = { + &tegra_clk_m, + &tegra_pll_c, + &tegra_clk_32k, + &tegra_pll_m, + &tegra_pll_p, + &tegra_pll_p_out4, + &tegra_pll_p_out3, + &tegra_clk_d, + &tegra_pll_x, +}; + +static const char *mux_sclk[] = { + "clk_m", + "pll_c_out1", + "pll_p_out4", + "pllp_p_out3", + "pll_p_out2", + "clk_d", + "clk_32k", + "pll_m_out1", +}; + +static struct clk *mux_sclk_p[] = { + &tegra_clk_m, + &tegra_pll_c_out1, + &tegra_pll_p_out4, + &tegra_pll_p_out3, + &tegra_pll_p_out2, + &tegra_clk_d, + &tegra_clk_32k, + &tegra_pll_m_out1, +}; + +static struct clk tegra_cclk; +static struct clk_tegra tegra_cclk_hw = { + .hw = { + .clk = &tegra_cclk, + }, + .reg = 0x20, + .max_rate = 1000000000, +}; +DEFINE_CLK_TEGRA(cclk, 0, &tegra_super_ops, 0, mux_cclk, + mux_cclk_p, NULL); + +static const char *mux_twd[] = { + "cclk", +}; + +static struct clk *mux_twd_p[] = { + &tegra_cclk, +}; + +static struct clk tegra_clk_twd; +static struct clk_tegra tegra_clk_twd_hw = { + .hw = { + .clk = &tegra_clk_twd, + }, + .max_rate = 1000000000, + .mul = 1, + .div = 4, +}; + +static struct clk tegra_clk_twd = { + .name = "twd", + .ops = &tegra_twd_ops, + .hw = &tegra_clk_twd_hw.hw, + .parent = &tegra_cclk, + .parent_names = mux_twd, + .parents = mux_twd_p, + .num_parents = ARRAY_SIZE(mux_twd), +}; + +static struct clk tegra_sclk; +static struct clk_tegra tegra_sclk_hw = { + .hw = { + .clk = &tegra_sclk, + }, + .reg = 0x28, + .max_rate = 240000000, + .min_rate = 120000000, +}; +DEFINE_CLK_TEGRA(sclk, 0, &tegra_super_ops, 0, mux_sclk, + mux_sclk_p, NULL); + +static const char *tegra_cop_parent_names[] = { + "tegra_sclk", +}; + +static struct clk *tegra_cop_parents[] = { + &tegra_sclk, +}; + +static struct clk tegra_cop; +static struct clk_tegra tegra_cop_hw = { + .hw = { + .clk = &tegra_cop, + }, + .max_rate = 240000000, + .reset = &tegra2_cop_clk_reset, +}; +DEFINE_CLK_TEGRA(cop, 0, &tegra_cop_ops, CLK_SET_RATE_PARENT, + tegra_cop_parent_names, tegra_cop_parents, &tegra_sclk); + +static const char *tegra_hclk_parent_names[] = { + "tegra_sclk", +}; + +static struct clk *tegra_hclk_parents[] = { + &tegra_sclk, +}; + +static struct clk tegra_hclk; +static struct clk_tegra tegra_hclk_hw = { + .hw = { + .clk = &tegra_hclk, + }, + .flags = DIV_BUS, + .reg = 0x30, + .reg_shift = 4, + .max_rate = 240000000, +}; +DEFINE_CLK_TEGRA(hclk, 0, &tegra_bus_ops, 0, tegra_hclk_parent_names, + tegra_hclk_parents, &tegra_sclk); + +static const char *tegra_pclk_parent_names[] = { + "tegra_hclk", +}; + +static struct clk *tegra_pclk_parents[] = { + &tegra_hclk, +}; + +static struct clk tegra_pclk; +static struct clk_tegra tegra_pclk_hw = { + .hw = { + .clk = &tegra_pclk, + }, + .flags = DIV_BUS, + .reg = 0x30, + .reg_shift = 0, + .max_rate = 120000000, +}; +DEFINE_CLK_TEGRA(pclk, 0, &tegra_bus_ops, 0, tegra_pclk_parent_names, + tegra_pclk_parents, &tegra_hclk); + +static const char *tegra_blink_parent_names[] = { + "clk_32k", +}; + +static struct clk *tegra_blink_parents[] = { + &tegra_clk_32k, +}; + +static struct clk tegra_blink; +static struct clk_tegra tegra_blink_hw = { + .hw = { + .clk = &tegra_blink, + }, + .reg = 0x40, + .max_rate = 32768, +}; +DEFINE_CLK_TEGRA(blink, 0, &tegra_blink_clk_ops, 0, tegra_blink_parent_names, + tegra_blink_parents, &tegra_clk_32k); + +static const char *mux_pllm_pllc_pllp_plla[] = { + "pll_m", + "pll_c", + "pll_p", + "pll_a_out0", +}; + +static struct clk *mux_pllm_pllc_pllp_plla_p[] = { + &tegra_pll_m, + &tegra_pll_c, + &tegra_pll_p, + &tegra_pll_a_out0, +}; + +static const char *mux_pllm_pllc_pllp_clkm[] = { + "pll_m", + "pll_c", + "pll_p", + "clk_m", +}; + +static struct clk *mux_pllm_pllc_pllp_clkm_p[] = { + &tegra_pll_m, + &tegra_pll_c, + &tegra_pll_p, + &tegra_clk_m, +}; + +static const char *mux_pllp_pllc_pllm_clkm[] = { + "pll_p", + "pll_c", + "pll_m", + "clk_m", +}; + +static struct clk *mux_pllp_pllc_pllm_clkm_p[] = { + &tegra_pll_p, + &tegra_pll_c, + &tegra_pll_m, + &tegra_clk_m, +}; + +static const char *mux_pllaout0_audio2x_pllp_clkm[] = { + "pll_a_out0", + "audio_2x", + "pll_p", + "clk_m", +}; + +static struct clk *mux_pllaout0_audio2x_pllp_clkm_p[] = { + &tegra_pll_a_out0, + &tegra_audio_2x, + &tegra_pll_p, + &tegra_clk_m, +}; + +static const char *mux_pllp_plld_pllc_clkm[] = { + "pllp", + "pll_d_out0", + "pll_c", + "clk_m", +}; + +static struct clk *mux_pllp_plld_pllc_clkm_p[] = { + &tegra_pll_p, + &tegra_pll_d_out0, + &tegra_pll_c, + &tegra_clk_m, +}; + +static const char *mux_pllp_pllc_audio_clkm_clk32[] = { + "pll_p", + "pll_c", + "audio", + "clk_m", + "clk_32k", +}; + +static struct clk *mux_pllp_pllc_audio_clkm_clk32_p[] = { + &tegra_pll_p, + &tegra_pll_c, + &tegra_audio, + &tegra_clk_m, + &tegra_clk_32k, +}; + +static const char *mux_pllp_pllc_pllm[] = { + "pll_p", + "pll_c", + "pll_m" +}; + +static struct clk *mux_pllp_pllc_pllm_p[] = { + &tegra_pll_p, + &tegra_pll_c, + &tegra_pll_m, +}; + +static const char *mux_clk_m[] = { + "clk_m", +}; + +static struct clk *mux_clk_m_p[] = { + &tegra_clk_m, +}; + +static const char *mux_pllp_out3[] = { + "pll_p_out3", +}; + +static struct clk *mux_pllp_out3_p[] = { + &tegra_pll_p_out3, +}; + +static const char *mux_plld[] = { + "pll_d", +}; + +static struct clk *mux_plld_p[] = { + &tegra_pll_d, +}; + +static const char *mux_clk_32k[] = { + "clk_32k", +}; + +static struct clk *mux_clk_32k_p[] = { + &tegra_clk_32k, +}; + +static const char *mux_pclk[] = { + "pclk", +}; + +static struct clk *mux_pclk_p[] = { + &tegra_pclk, +}; + +static struct clk tegra_emc; +static struct clk_tegra tegra_emc_hw = { + .hw = { + .clk = &tegra_emc, + }, + .reg = 0x19c, + .max_rate = 800000000, + .flags = MUX | DIV_U71 | PERIPH_EMC_ENB, + .reset = &tegra2_periph_clk_reset, + .u.periph = { + .clk_num = 57, + }, +}; +DEFINE_CLK_TEGRA(emc, 0, &tegra_emc_clk_ops, 0, mux_pllm_pllc_pllp_clkm, + mux_pllm_pllc_pllp_clkm_p, NULL); + +#define PERIPH_CLK(_name, _dev, _con, _clk_num, _reg, \ + _max, _inputs, _flags) \ + static struct clk tegra_##_name; \ + static struct clk_tegra tegra_##_name##_hw = { \ + .hw = { \ + .clk = &tegra_##_name, \ + }, \ + .lookup = { \ + .dev_id = _dev, \ + .con_id = _con, \ + }, \ + .reg = _reg, \ + .flags = _flags, \ + .max_rate = _max, \ + .u.periph = { \ + .clk_num = _clk_num, \ + }, \ + .reset = tegra2_periph_clk_reset, \ + }; \ + static struct clk tegra_##_name = { \ + .name = #_name, \ + .ops = &tegra_periph_clk_ops, \ + .hw = &tegra_##_name##_hw.hw, \ + .parent_names = _inputs, \ + .parents = _inputs##_p, \ + .num_parents = ARRAY_SIZE(_inputs), \ + }; + +PERIPH_CLK(apbdma, "tegra-apbdma", NULL, 34, 0, 108000000, mux_pclk, 0); +PERIPH_CLK(rtc, "rtc-tegra", NULL, 4, 0, 32768, mux_clk_32k, PERIPH_NO_RESET); +PERIPH_CLK(timer, "timer", NULL, 5, 0, 26000000, mux_clk_m, 0); +PERIPH_CLK(i2s1, "tegra20-i2s.0", NULL, 11, 0x100, 26000000, mux_pllaout0_audio2x_pllp_clkm, MUX | DIV_U71); +PERIPH_CLK(i2s2, "tegra20-i2s.1", NULL, 18, 0x104, 26000000, mux_pllaout0_audio2x_pllp_clkm, MUX | DIV_U71); +PERIPH_CLK(spdif_out, "spdif_out", NULL, 10, 0x108, 100000000, mux_pllaout0_audio2x_pllp_clkm, MUX | DIV_U71); +PERIPH_CLK(spdif_in, "spdif_in", NULL, 10, 0x10c, 100000000, mux_pllp_pllc_pllm, MUX | DIV_U71); +PERIPH_CLK(pwm, "tegra-pwm", NULL, 17, 0x110, 432000000, mux_pllp_pllc_audio_clkm_clk32, MUX | DIV_U71 | MUX_PWM); +PERIPH_CLK(spi, "spi", NULL, 43, 0x114, 40000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); +PERIPH_CLK(xio, "xio", NULL, 45, 0x120, 150000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); +PERIPH_CLK(twc, "twc", NULL, 16, 0x12c, 150000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); +PERIPH_CLK(sbc1, "spi_tegra.0", NULL, 41, 0x134, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); +PERIPH_CLK(sbc2, "spi_tegra.1", NULL, 44, 0x118, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); +PERIPH_CLK(sbc3, "spi_tegra.2", NULL, 46, 0x11c, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); +PERIPH_CLK(sbc4, "spi_tegra.3", NULL, 68, 0x1b4, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); +PERIPH_CLK(ide, "ide", NULL, 25, 0x144, 100000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* requires min voltage */ +PERIPH_CLK(ndflash, "tegra_nand", NULL, 13, 0x160, 164000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */ +PERIPH_CLK(vfir, "vfir", NULL, 7, 0x168, 72000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); +PERIPH_CLK(sdmmc1, "sdhci-tegra.0", NULL, 14, 0x150, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */ +PERIPH_CLK(sdmmc2, "sdhci-tegra.1", NULL, 9, 0x154, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */ +PERIPH_CLK(sdmmc3, "sdhci-tegra.2", NULL, 69, 0x1bc, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */ +PERIPH_CLK(sdmmc4, "sdhci-tegra.3", NULL, 15, 0x164, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */ +PERIPH_CLK(vcp, "tegra-avp", "vcp", 29, 0, 250000000, mux_clk_m, 0); +PERIPH_CLK(bsea, "tegra-avp", "bsea", 62, 0, 250000000, mux_clk_m, 0); +PERIPH_CLK(bsev, "tegra-aes", "bsev", 63, 0, 250000000, mux_clk_m, 0); +PERIPH_CLK(vde, "tegra-avp", "vde", 61, 0x1c8, 250000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage and process_id */ +PERIPH_CLK(csite, "csite", NULL, 73, 0x1d4, 144000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* max rate ??? */ +/* FIXME: what is la? */ +PERIPH_CLK(la, "la", NULL, 76, 0x1f8, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); +PERIPH_CLK(owr, "tegra_w1", NULL, 71, 0x1cc, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); +PERIPH_CLK(nor, "nor", NULL, 42, 0x1d0, 92000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* requires min voltage */ +PERIPH_CLK(mipi, "mipi", NULL, 50, 0x174, 60000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */ +PERIPH_CLK(i2c1, "tegra-i2c.0", NULL, 12, 0x124, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16); +PERIPH_CLK(i2c2, "tegra-i2c.1", NULL, 54, 0x198, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16); +PERIPH_CLK(i2c3, "tegra-i2c.2", NULL, 67, 0x1b8, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16); +PERIPH_CLK(dvc, "tegra-i2c.3", NULL, 47, 0x128, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16); +PERIPH_CLK(i2c1_i2c, "tegra-i2c.0", "i2c", 0, 0, 72000000, mux_pllp_out3, 0); +PERIPH_CLK(i2c2_i2c, "tegra-i2c.1", "i2c", 0, 0, 72000000, mux_pllp_out3, 0); +PERIPH_CLK(i2c3_i2c, "tegra-i2c.2", "i2c", 0, 0, 72000000, mux_pllp_out3, 0); +PERIPH_CLK(dvc_i2c, "tegra-i2c.3", "i2c", 0, 0, 72000000, mux_pllp_out3, 0); +PERIPH_CLK(uarta, "tegra-uart.0", NULL, 6, 0x178, 600000000, mux_pllp_pllc_pllm_clkm, MUX); +PERIPH_CLK(uartb, "tegra-uart.1", NULL, 7, 0x17c, 600000000, mux_pllp_pllc_pllm_clkm, MUX); +PERIPH_CLK(uartc, "tegra-uart.2", NULL, 55, 0x1a0, 600000000, mux_pllp_pllc_pllm_clkm, MUX); +PERIPH_CLK(uartd, "tegra-uart.3", NULL, 65, 0x1c0, 600000000, mux_pllp_pllc_pllm_clkm, MUX); +PERIPH_CLK(uarte, "tegra-uart.4", NULL, 66, 0x1c4, 600000000, mux_pllp_pllc_pllm_clkm, MUX); +PERIPH_CLK(3d, "3d", NULL, 24, 0x158, 300000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | PERIPH_MANUAL_RESET); /* scales with voltage and process_id */ +PERIPH_CLK(2d, "2d", NULL, 21, 0x15c, 300000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */ +PERIPH_CLK(vi, "tegra_camera", "vi", 20, 0x148, 150000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */ +PERIPH_CLK(vi_sensor, "tegra_camera", "vi_sensor", 20, 0x1a8, 150000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | PERIPH_NO_RESET); /* scales with voltage and process_id */ +PERIPH_CLK(epp, "epp", NULL, 19, 0x16c, 300000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */ +PERIPH_CLK(mpe, "mpe", NULL, 60, 0x170, 250000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */ +PERIPH_CLK(host1x, "host1x", NULL, 28, 0x180, 166000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */ +PERIPH_CLK(cve, "cve", NULL, 49, 0x140, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */ +PERIPH_CLK(tvo, "tvo", NULL, 49, 0x188, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */ +PERIPH_CLK(hdmi, "hdmi", NULL, 51, 0x18c, 600000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */ +PERIPH_CLK(tvdac, "tvdac", NULL, 53, 0x194, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */ +PERIPH_CLK(disp1, "tegradc.0", NULL, 27, 0x138, 600000000, mux_pllp_plld_pllc_clkm, MUX); /* scales with voltage and process_id */ +PERIPH_CLK(disp2, "tegradc.1", NULL, 26, 0x13c, 600000000, mux_pllp_plld_pllc_clkm, MUX); /* scales with voltage and process_id */ +PERIPH_CLK(usbd, "fsl-tegra-udc", NULL, 22, 0, 480000000, mux_clk_m, 0); /* requires min voltage */ +PERIPH_CLK(usb2, "tegra-ehci.1", NULL, 58, 0, 480000000, mux_clk_m, 0); /* requires min voltage */ +PERIPH_CLK(usb3, "tegra-ehci.2", NULL, 59, 0, 480000000, mux_clk_m, 0); /* requires min voltage */ +PERIPH_CLK(dsi, "dsi", NULL, 48, 0, 500000000, mux_plld, 0); /* scales with voltage */ +PERIPH_CLK(csi, "tegra_camera", "csi", 52, 0, 72000000, mux_pllp_out3, 0); +PERIPH_CLK(isp, "tegra_camera", "isp", 23, 0, 150000000, mux_clk_m, 0); /* same frequency as VI */ +PERIPH_CLK(csus, "tegra_camera", "csus", 92, 0, 150000000, mux_clk_m, PERIPH_NO_RESET); +PERIPH_CLK(pex, NULL, "pex", 70, 0, 26000000, mux_clk_m, PERIPH_MANUAL_RESET); +PERIPH_CLK(afi, NULL, "afi", 72, 0, 26000000, mux_clk_m, PERIPH_MANUAL_RESET); +PERIPH_CLK(pcie_xclk, NULL, "pcie_xclk", 74, 0, 26000000, mux_clk_m, PERIPH_MANUAL_RESET); + +static struct clk *tegra_list_clks[] = { + &tegra_apbdma, + &tegra_rtc, + &tegra_i2s1, + &tegra_i2s2, + &tegra_spdif_out, + &tegra_spdif_in, + &tegra_pwm, + &tegra_spi, + &tegra_xio, + &tegra_twc, + &tegra_sbc1, + &tegra_sbc2, + &tegra_sbc3, + &tegra_sbc4, + &tegra_ide, + &tegra_ndflash, + &tegra_vfir, + &tegra_sdmmc1, + &tegra_sdmmc2, + &tegra_sdmmc3, + &tegra_sdmmc4, + &tegra_vcp, + &tegra_bsea, + &tegra_bsev, + &tegra_vde, + &tegra_csite, + &tegra_la, + &tegra_owr, + &tegra_nor, + &tegra_mipi, + &tegra_i2c1, + &tegra_i2c2, + &tegra_i2c3, + &tegra_dvc, + &tegra_i2c1_i2c, + &tegra_i2c2_i2c, + &tegra_i2c3_i2c, + &tegra_dvc_i2c, + &tegra_uarta, + &tegra_uartb, + &tegra_uartc, + &tegra_uartd, + &tegra_uarte, + &tegra_3d, + &tegra_2d, + &tegra_vi, + &tegra_vi_sensor, + &tegra_epp, + &tegra_mpe, + &tegra_host1x, + &tegra_cve, + &tegra_tvo, + &tegra_hdmi, + &tegra_tvdac, + &tegra_disp1, + &tegra_disp2, + &tegra_usbd, + &tegra_usb2, + &tegra_usb3, + &tegra_dsi, + &tegra_csi, + &tegra_isp, + &tegra_csus, + &tegra_pex, + &tegra_afi, + &tegra_pcie_xclk, +}; + +#define CLK_DUPLICATE(_name, _dev, _con) \ + { \ + .name = _name, \ + .lookup = { \ + .dev_id = _dev, \ + .con_id = _con, \ + }, \ + } + +/* Some clocks may be used by different drivers depending on the board + * configuration. List those here to register them twice in the clock lookup + * table under two names. + */ +static struct clk_duplicate tegra_clk_duplicates[] = { + CLK_DUPLICATE("uarta", "serial8250.0", NULL), + CLK_DUPLICATE("uartb", "serial8250.1", NULL), + CLK_DUPLICATE("uartc", "serial8250.2", NULL), + CLK_DUPLICATE("uartd", "serial8250.3", NULL), + CLK_DUPLICATE("uarte", "serial8250.4", NULL), + CLK_DUPLICATE("usbd", "utmip-pad", NULL), + CLK_DUPLICATE("usbd", "tegra-ehci.0", NULL), + CLK_DUPLICATE("usbd", "tegra-otg", NULL), + CLK_DUPLICATE("hdmi", "tegradc.0", "hdmi"), + CLK_DUPLICATE("hdmi", "tegradc.1", "hdmi"), + CLK_DUPLICATE("host1x", "tegra_grhost", "host1x"), + CLK_DUPLICATE("2d", "tegra_grhost", "gr2d"), + CLK_DUPLICATE("3d", "tegra_grhost", "gr3d"), + CLK_DUPLICATE("epp", "tegra_grhost", "epp"), + CLK_DUPLICATE("mpe", "tegra_grhost", "mpe"), + CLK_DUPLICATE("cop", "tegra-avp", "cop"), + CLK_DUPLICATE("vde", "tegra-aes", "vde"), + CLK_DUPLICATE("cclk", NULL, "cpu"), + CLK_DUPLICATE("twd", "smp_twd", NULL), +}; + +#define CLK(dev, con, ck) \ + { \ + .dev_id = dev, \ + .con_id = con, \ + .clk = ck, \ + } + +static struct clk *tegra_ptr_clks[] = { + &tegra_clk_32k, + &tegra_pll_s, + &tegra_clk_m, + &tegra_pll_m, + &tegra_pll_m_out1, + &tegra_pll_c, + &tegra_pll_c_out1, + &tegra_pll_p, + &tegra_pll_p_out1, + &tegra_pll_p_out2, + &tegra_pll_p_out3, + &tegra_pll_p_out4, + &tegra_pll_a, + &tegra_pll_a_out0, + &tegra_pll_d, + &tegra_pll_d_out0, + &tegra_pll_u, + &tegra_pll_x, + &tegra_pll_e, + &tegra_cclk, + &tegra_clk_twd, + &tegra_sclk, + &tegra_hclk, + &tegra_pclk, + &tegra_clk_d, + &tegra_cdev1, + &tegra_cdev2, + &tegra_blink, + &tegra_cop, + &tegra_emc, +}; + +static void tegra2_init_one_clock(struct clk *c) +{ + struct clk_tegra *clk = to_clk_tegra(c->hw); + int ret; + + ret = __clk_init(NULL, c); + if (ret) + pr_err("clk init failed %s\n", __clk_get_name(c)); + + INIT_LIST_HEAD(&clk->shared_bus_list); + if (!clk->lookup.dev_id && !clk->lookup.con_id) + clk->lookup.con_id = c->name; + clk->lookup.clk = c; + clkdev_add(&clk->lookup); + tegra_clk_add(c); +} + +void __init tegra2_init_clocks(void) +{ + int i; + struct clk *c; + + for (i = 0; i < ARRAY_SIZE(tegra_ptr_clks); i++) + tegra2_init_one_clock(tegra_ptr_clks[i]); + + for (i = 0; i < ARRAY_SIZE(tegra_list_clks); i++) + tegra2_init_one_clock(tegra_list_clks[i]); + + for (i = 0; i < ARRAY_SIZE(tegra_clk_duplicates); i++) { + c = tegra_get_clock_by_name(tegra_clk_duplicates[i].name); + if (!c) { + pr_err("%s: Unknown duplicate clock %s\n", __func__, + tegra_clk_duplicates[i].name); + continue; + } + + tegra_clk_duplicates[i].lookup.clk = c; + clkdev_add(&tegra_clk_duplicates[i].lookup); + } + + init_audio_sync_clock_mux(); + tegra20_cpu_car_ops_init(); +} diff --git a/arch/arm/mach-tegra/tegra2_clocks.c b/arch/arm/mach-tegra/tegra2_clocks.c deleted file mode 100644 index a703844b2061..000000000000 --- a/arch/arm/mach-tegra/tegra2_clocks.c +++ /dev/null @@ -1,2484 +0,0 @@ -/* - * arch/arm/mach-tegra/tegra2_clocks.c - * - * Copyright (C) 2010 Google, Inc. - * - * Author: - * Colin Cross <ccross@google.com> - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/list.h> -#include <linux/spinlock.h> -#include <linux/delay.h> -#include <linux/io.h> -#include <linux/clkdev.h> -#include <linux/clk.h> - -#include <mach/iomap.h> -#include <mach/suspend.h> - -#include "clock.h" -#include "fuse.h" -#include "tegra2_emc.h" - -#define RST_DEVICES 0x004 -#define RST_DEVICES_SET 0x300 -#define RST_DEVICES_CLR 0x304 -#define RST_DEVICES_NUM 3 - -#define CLK_OUT_ENB 0x010 -#define CLK_OUT_ENB_SET 0x320 -#define CLK_OUT_ENB_CLR 0x324 -#define CLK_OUT_ENB_NUM 3 - -#define CLK_MASK_ARM 0x44 -#define MISC_CLK_ENB 0x48 - -#define OSC_CTRL 0x50 -#define OSC_CTRL_OSC_FREQ_MASK (3<<30) -#define OSC_CTRL_OSC_FREQ_13MHZ (0<<30) -#define OSC_CTRL_OSC_FREQ_19_2MHZ (1<<30) -#define OSC_CTRL_OSC_FREQ_12MHZ (2<<30) -#define OSC_CTRL_OSC_FREQ_26MHZ (3<<30) -#define OSC_CTRL_MASK (0x3f2 | OSC_CTRL_OSC_FREQ_MASK) - -#define OSC_FREQ_DET 0x58 -#define OSC_FREQ_DET_TRIG (1<<31) - -#define OSC_FREQ_DET_STATUS 0x5C -#define OSC_FREQ_DET_BUSY (1<<31) -#define OSC_FREQ_DET_CNT_MASK 0xFFFF - -#define PERIPH_CLK_SOURCE_I2S1 0x100 -#define PERIPH_CLK_SOURCE_EMC 0x19c -#define PERIPH_CLK_SOURCE_OSC 0x1fc -#define PERIPH_CLK_SOURCE_NUM \ - ((PERIPH_CLK_SOURCE_OSC - PERIPH_CLK_SOURCE_I2S1) / 4) - -#define PERIPH_CLK_SOURCE_MASK (3<<30) -#define PERIPH_CLK_SOURCE_SHIFT 30 -#define PERIPH_CLK_SOURCE_PWM_MASK (7<<28) -#define PERIPH_CLK_SOURCE_PWM_SHIFT 28 -#define PERIPH_CLK_SOURCE_ENABLE (1<<28) -#define PERIPH_CLK_SOURCE_DIVU71_MASK 0xFF -#define PERIPH_CLK_SOURCE_DIVU16_MASK 0xFFFF -#define PERIPH_CLK_SOURCE_DIV_SHIFT 0 - -#define SDMMC_CLK_INT_FB_SEL (1 << 23) -#define SDMMC_CLK_INT_FB_DLY_SHIFT 16 -#define SDMMC_CLK_INT_FB_DLY_MASK (0xF << SDMMC_CLK_INT_FB_DLY_SHIFT) - -#define PLL_BASE 0x0 -#define PLL_BASE_BYPASS (1<<31) -#define PLL_BASE_ENABLE (1<<30) -#define PLL_BASE_REF_ENABLE (1<<29) -#define PLL_BASE_OVERRIDE (1<<28) -#define PLL_BASE_DIVP_MASK (0x7<<20) -#define PLL_BASE_DIVP_SHIFT 20 -#define PLL_BASE_DIVN_MASK (0x3FF<<8) -#define PLL_BASE_DIVN_SHIFT 8 -#define PLL_BASE_DIVM_MASK (0x1F) -#define PLL_BASE_DIVM_SHIFT 0 - -#define PLL_OUT_RATIO_MASK (0xFF<<8) -#define PLL_OUT_RATIO_SHIFT 8 -#define PLL_OUT_OVERRIDE (1<<2) -#define PLL_OUT_CLKEN (1<<1) -#define PLL_OUT_RESET_DISABLE (1<<0) - -#define PLL_MISC(c) (((c)->flags & PLL_ALT_MISC_REG) ? 0x4 : 0xc) - -#define PLL_MISC_DCCON_SHIFT 20 -#define PLL_MISC_CPCON_SHIFT 8 -#define PLL_MISC_CPCON_MASK (0xF<<PLL_MISC_CPCON_SHIFT) -#define PLL_MISC_LFCON_SHIFT 4 -#define PLL_MISC_LFCON_MASK (0xF<<PLL_MISC_LFCON_SHIFT) -#define PLL_MISC_VCOCON_SHIFT 0 -#define PLL_MISC_VCOCON_MASK (0xF<<PLL_MISC_VCOCON_SHIFT) - -#define PLLU_BASE_POST_DIV (1<<20) - -#define PLLD_MISC_CLKENABLE (1<<30) -#define PLLD_MISC_DIV_RST (1<<23) -#define PLLD_MISC_DCCON_SHIFT 12 - -#define PLLE_MISC_READY (1 << 15) - -#define PERIPH_CLK_TO_ENB_REG(c) ((c->u.periph.clk_num / 32) * 4) -#define PERIPH_CLK_TO_ENB_SET_REG(c) ((c->u.periph.clk_num / 32) * 8) -#define PERIPH_CLK_TO_ENB_BIT(c) (1 << (c->u.periph.clk_num % 32)) - -#define SUPER_CLK_MUX 0x00 -#define SUPER_STATE_SHIFT 28 -#define SUPER_STATE_MASK (0xF << SUPER_STATE_SHIFT) -#define SUPER_STATE_STANDBY (0x0 << SUPER_STATE_SHIFT) -#define SUPER_STATE_IDLE (0x1 << SUPER_STATE_SHIFT) -#define SUPER_STATE_RUN (0x2 << SUPER_STATE_SHIFT) -#define SUPER_STATE_IRQ (0x3 << SUPER_STATE_SHIFT) -#define SUPER_STATE_FIQ (0x4 << SUPER_STATE_SHIFT) -#define SUPER_SOURCE_MASK 0xF -#define SUPER_FIQ_SOURCE_SHIFT 12 -#define SUPER_IRQ_SOURCE_SHIFT 8 -#define SUPER_RUN_SOURCE_SHIFT 4 -#define SUPER_IDLE_SOURCE_SHIFT 0 - -#define SUPER_CLK_DIVIDER 0x04 - -#define BUS_CLK_DISABLE (1<<3) -#define BUS_CLK_DIV_MASK 0x3 - -#define PMC_CTRL 0x0 - #define PMC_CTRL_BLINK_ENB (1 << 7) - -#define PMC_DPD_PADS_ORIDE 0x1c - #define PMC_DPD_PADS_ORIDE_BLINK_ENB (1 << 20) - -#define PMC_BLINK_TIMER_DATA_ON_SHIFT 0 -#define PMC_BLINK_TIMER_DATA_ON_MASK 0x7fff -#define PMC_BLINK_TIMER_ENB (1 << 15) -#define PMC_BLINK_TIMER_DATA_OFF_SHIFT 16 -#define PMC_BLINK_TIMER_DATA_OFF_MASK 0xffff - -static void __iomem *reg_clk_base = IO_ADDRESS(TEGRA_CLK_RESET_BASE); -static void __iomem *reg_pmc_base = IO_ADDRESS(TEGRA_PMC_BASE); - -/* - * Some clocks share a register with other clocks. Any clock op that - * non-atomically modifies a register used by another clock must lock - * clock_register_lock first. - */ -static DEFINE_SPINLOCK(clock_register_lock); - -/* - * Some peripheral clocks share an enable bit, so refcount the enable bits - * in registers CLK_ENABLE_L, CLK_ENABLE_H, and CLK_ENABLE_U - */ -static int tegra_periph_clk_enable_refcount[3 * 32]; - -#define clk_writel(value, reg) \ - __raw_writel(value, reg_clk_base + (reg)) -#define clk_readl(reg) \ - __raw_readl(reg_clk_base + (reg)) -#define pmc_writel(value, reg) \ - __raw_writel(value, reg_pmc_base + (reg)) -#define pmc_readl(reg) \ - __raw_readl(reg_pmc_base + (reg)) - -static unsigned long clk_measure_input_freq(void) -{ - u32 clock_autodetect; - clk_writel(OSC_FREQ_DET_TRIG | 1, OSC_FREQ_DET); - do {} while (clk_readl(OSC_FREQ_DET_STATUS) & OSC_FREQ_DET_BUSY); - clock_autodetect = clk_readl(OSC_FREQ_DET_STATUS); - if (clock_autodetect >= 732 - 3 && clock_autodetect <= 732 + 3) { - return 12000000; - } else if (clock_autodetect >= 794 - 3 && clock_autodetect <= 794 + 3) { - return 13000000; - } else if (clock_autodetect >= 1172 - 3 && clock_autodetect <= 1172 + 3) { - return 19200000; - } else if (clock_autodetect >= 1587 - 3 && clock_autodetect <= 1587 + 3) { - return 26000000; - } else { - pr_err("%s: Unexpected clock autodetect value %d", __func__, clock_autodetect); - BUG(); - return 0; - } -} - -static int clk_div71_get_divider(unsigned long parent_rate, unsigned long rate) -{ - s64 divider_u71 = parent_rate * 2; - divider_u71 += rate - 1; - do_div(divider_u71, rate); - - if (divider_u71 - 2 < 0) - return 0; - - if (divider_u71 - 2 > 255) - return -EINVAL; - - return divider_u71 - 2; -} - -static int clk_div16_get_divider(unsigned long parent_rate, unsigned long rate) -{ - s64 divider_u16; - - divider_u16 = parent_rate; - divider_u16 += rate - 1; - do_div(divider_u16, rate); - - if (divider_u16 - 1 < 0) - return 0; - - if (divider_u16 - 1 > 255) - return -EINVAL; - - return divider_u16 - 1; -} - -/* clk_m functions */ -static unsigned long tegra2_clk_m_autodetect_rate(struct clk *c) -{ - u32 auto_clock_control = clk_readl(OSC_CTRL) & ~OSC_CTRL_OSC_FREQ_MASK; - - c->rate = clk_measure_input_freq(); - switch (c->rate) { - case 12000000: - auto_clock_control |= OSC_CTRL_OSC_FREQ_12MHZ; - break; - case 13000000: - auto_clock_control |= OSC_CTRL_OSC_FREQ_13MHZ; - break; - case 19200000: - auto_clock_control |= OSC_CTRL_OSC_FREQ_19_2MHZ; - break; - case 26000000: - auto_clock_control |= OSC_CTRL_OSC_FREQ_26MHZ; - break; - default: - pr_err("%s: Unexpected clock rate %ld", __func__, c->rate); - BUG(); - } - clk_writel(auto_clock_control, OSC_CTRL); - return c->rate; -} - -static void tegra2_clk_m_init(struct clk *c) -{ - pr_debug("%s on clock %s\n", __func__, c->name); - tegra2_clk_m_autodetect_rate(c); -} - -static int tegra2_clk_m_enable(struct clk *c) -{ - pr_debug("%s on clock %s\n", __func__, c->name); - return 0; -} - -static void tegra2_clk_m_disable(struct clk *c) -{ - pr_debug("%s on clock %s\n", __func__, c->name); - BUG(); -} - -static struct clk_ops tegra_clk_m_ops = { - .init = tegra2_clk_m_init, - .enable = tegra2_clk_m_enable, - .disable = tegra2_clk_m_disable, -}; - -/* super clock functions */ -/* "super clocks" on tegra have two-stage muxes and a clock skipping - * super divider. We will ignore the clock skipping divider, since we - * can't lower the voltage when using the clock skip, but we can if we - * lower the PLL frequency. - */ -static void tegra2_super_clk_init(struct clk *c) -{ - u32 val; - int source; - int shift; - const struct clk_mux_sel *sel; - val = clk_readl(c->reg + SUPER_CLK_MUX); - c->state = ON; - BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) && - ((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE)); - shift = ((val & SUPER_STATE_MASK) == SUPER_STATE_IDLE) ? - SUPER_IDLE_SOURCE_SHIFT : SUPER_RUN_SOURCE_SHIFT; - source = (val >> shift) & SUPER_SOURCE_MASK; - for (sel = c->inputs; sel->input != NULL; sel++) { - if (sel->value == source) - break; - } - BUG_ON(sel->input == NULL); - c->parent = sel->input; -} - -static int tegra2_super_clk_enable(struct clk *c) -{ - clk_writel(0, c->reg + SUPER_CLK_DIVIDER); - return 0; -} - -static void tegra2_super_clk_disable(struct clk *c) -{ - pr_debug("%s on clock %s\n", __func__, c->name); - - /* oops - don't disable the CPU clock! */ - BUG(); -} - -static int tegra2_super_clk_set_parent(struct clk *c, struct clk *p) -{ - u32 val; - const struct clk_mux_sel *sel; - int shift; - - val = clk_readl(c->reg + SUPER_CLK_MUX); - BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) && - ((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE)); - shift = ((val & SUPER_STATE_MASK) == SUPER_STATE_IDLE) ? - SUPER_IDLE_SOURCE_SHIFT : SUPER_RUN_SOURCE_SHIFT; - for (sel = c->inputs; sel->input != NULL; sel++) { - if (sel->input == p) { - val &= ~(SUPER_SOURCE_MASK << shift); - val |= sel->value << shift; - - if (c->refcnt) - clk_enable(p); - - clk_writel(val, c->reg); - - if (c->refcnt && c->parent) - clk_disable(c->parent); - - clk_reparent(c, p); - return 0; - } - } - return -EINVAL; -} - -/* - * Super clocks have "clock skippers" instead of dividers. Dividing using - * a clock skipper does not allow the voltage to be scaled down, so instead - * adjust the rate of the parent clock. This requires that the parent of a - * super clock have no other children, otherwise the rate will change - * underneath the other children. - */ -static int tegra2_super_clk_set_rate(struct clk *c, unsigned long rate) -{ - return clk_set_rate(c->parent, rate); -} - -static struct clk_ops tegra_super_ops = { - .init = tegra2_super_clk_init, - .enable = tegra2_super_clk_enable, - .disable = tegra2_super_clk_disable, - .set_parent = tegra2_super_clk_set_parent, - .set_rate = tegra2_super_clk_set_rate, -}; - -/* virtual cpu clock functions */ -/* some clocks can not be stopped (cpu, memory bus) while the SoC is running. - To change the frequency of these clocks, the parent pll may need to be - reprogrammed, so the clock must be moved off the pll, the pll reprogrammed, - and then the clock moved back to the pll. To hide this sequence, a virtual - clock handles it. - */ -static void tegra2_cpu_clk_init(struct clk *c) -{ -} - -static int tegra2_cpu_clk_enable(struct clk *c) -{ - return 0; -} - -static void tegra2_cpu_clk_disable(struct clk *c) -{ - pr_debug("%s on clock %s\n", __func__, c->name); - - /* oops - don't disable the CPU clock! */ - BUG(); -} - -static int tegra2_cpu_clk_set_rate(struct clk *c, unsigned long rate) -{ - int ret; - /* - * Take an extra reference to the main pll so it doesn't turn - * off when we move the cpu off of it - */ - clk_enable(c->u.cpu.main); - - ret = clk_set_parent(c->parent, c->u.cpu.backup); - if (ret) { - pr_err("Failed to switch cpu to clock %s\n", c->u.cpu.backup->name); - goto out; - } - - if (rate == clk_get_rate(c->u.cpu.backup)) - goto out; - - ret = clk_set_rate(c->u.cpu.main, rate); - if (ret) { - pr_err("Failed to change cpu pll to %lu\n", rate); - goto out; - } - - ret = clk_set_parent(c->parent, c->u.cpu.main); - if (ret) { - pr_err("Failed to switch cpu to clock %s\n", c->u.cpu.main->name); - goto out; - } - -out: - clk_disable(c->u.cpu.main); - return ret; -} - -static struct clk_ops tegra_cpu_ops = { - .init = tegra2_cpu_clk_init, - .enable = tegra2_cpu_clk_enable, - .disable = tegra2_cpu_clk_disable, - .set_rate = tegra2_cpu_clk_set_rate, -}; - -/* virtual cop clock functions. Used to acquire the fake 'cop' clock to - * reset the COP block (i.e. AVP) */ -static void tegra2_cop_clk_reset(struct clk *c, bool assert) -{ - unsigned long reg = assert ? RST_DEVICES_SET : RST_DEVICES_CLR; - - pr_debug("%s %s\n", __func__, assert ? "assert" : "deassert"); - clk_writel(1 << 1, reg); -} - -static struct clk_ops tegra_cop_ops = { - .reset = tegra2_cop_clk_reset, -}; - -/* bus clock functions */ -static void tegra2_bus_clk_init(struct clk *c) -{ - u32 val = clk_readl(c->reg); - c->state = ((val >> c->reg_shift) & BUS_CLK_DISABLE) ? OFF : ON; - c->div = ((val >> c->reg_shift) & BUS_CLK_DIV_MASK) + 1; - c->mul = 1; -} - -static int tegra2_bus_clk_enable(struct clk *c) -{ - u32 val; - unsigned long flags; - - spin_lock_irqsave(&clock_register_lock, flags); - - val = clk_readl(c->reg); - val &= ~(BUS_CLK_DISABLE << c->reg_shift); - clk_writel(val, c->reg); - - spin_unlock_irqrestore(&clock_register_lock, flags); - - return 0; -} - -static void tegra2_bus_clk_disable(struct clk *c) -{ - u32 val; - unsigned long flags; - - spin_lock_irqsave(&clock_register_lock, flags); - - val = clk_readl(c->reg); - val |= BUS_CLK_DISABLE << c->reg_shift; - clk_writel(val, c->reg); - - spin_unlock_irqrestore(&clock_register_lock, flags); -} - -static int tegra2_bus_clk_set_rate(struct clk *c, unsigned long rate) -{ - u32 val; - unsigned long parent_rate = clk_get_rate(c->parent); - unsigned long flags; - int ret = -EINVAL; - int i; - - spin_lock_irqsave(&clock_register_lock, flags); - - val = clk_readl(c->reg); - for (i = 1; i <= 4; i++) { - if (rate == parent_rate / i) { - val &= ~(BUS_CLK_DIV_MASK << c->reg_shift); - val |= (i - 1) << c->reg_shift; - clk_writel(val, c->reg); - c->div = i; - c->mul = 1; - ret = 0; - break; - } - } - - spin_unlock_irqrestore(&clock_register_lock, flags); - - return ret; -} - -static struct clk_ops tegra_bus_ops = { - .init = tegra2_bus_clk_init, - .enable = tegra2_bus_clk_enable, - .disable = tegra2_bus_clk_disable, - .set_rate = tegra2_bus_clk_set_rate, -}; - -/* Blink output functions */ - -static void tegra2_blink_clk_init(struct clk *c) -{ - u32 val; - - val = pmc_readl(PMC_CTRL); - c->state = (val & PMC_CTRL_BLINK_ENB) ? ON : OFF; - c->mul = 1; - val = pmc_readl(c->reg); - - if (val & PMC_BLINK_TIMER_ENB) { - unsigned int on_off; - - on_off = (val >> PMC_BLINK_TIMER_DATA_ON_SHIFT) & - PMC_BLINK_TIMER_DATA_ON_MASK; - val >>= PMC_BLINK_TIMER_DATA_OFF_SHIFT; - val &= PMC_BLINK_TIMER_DATA_OFF_MASK; - on_off += val; - /* each tick in the blink timer is 4 32KHz clocks */ - c->div = on_off * 4; - } else { - c->div = 1; - } -} - -static int tegra2_blink_clk_enable(struct clk *c) -{ - u32 val; - - val = pmc_readl(PMC_DPD_PADS_ORIDE); - pmc_writel(val | PMC_DPD_PADS_ORIDE_BLINK_ENB, PMC_DPD_PADS_ORIDE); - - val = pmc_readl(PMC_CTRL); - pmc_writel(val | PMC_CTRL_BLINK_ENB, PMC_CTRL); - - return 0; -} - -static void tegra2_blink_clk_disable(struct clk *c) -{ - u32 val; - - val = pmc_readl(PMC_CTRL); - pmc_writel(val & ~PMC_CTRL_BLINK_ENB, PMC_CTRL); - - val = pmc_readl(PMC_DPD_PADS_ORIDE); - pmc_writel(val & ~PMC_DPD_PADS_ORIDE_BLINK_ENB, PMC_DPD_PADS_ORIDE); -} - -static int tegra2_blink_clk_set_rate(struct clk *c, unsigned long rate) -{ - unsigned long parent_rate = clk_get_rate(c->parent); - if (rate >= parent_rate) { - c->div = 1; - pmc_writel(0, c->reg); - } else { - unsigned int on_off; - u32 val; - - on_off = DIV_ROUND_UP(parent_rate / 8, rate); - c->div = on_off * 8; - - val = (on_off & PMC_BLINK_TIMER_DATA_ON_MASK) << - PMC_BLINK_TIMER_DATA_ON_SHIFT; - on_off &= PMC_BLINK_TIMER_DATA_OFF_MASK; - on_off <<= PMC_BLINK_TIMER_DATA_OFF_SHIFT; - val |= on_off; - val |= PMC_BLINK_TIMER_ENB; - pmc_writel(val, c->reg); - } - - return 0; -} - -static struct clk_ops tegra_blink_clk_ops = { - .init = &tegra2_blink_clk_init, - .enable = &tegra2_blink_clk_enable, - .disable = &tegra2_blink_clk_disable, - .set_rate = &tegra2_blink_clk_set_rate, -}; - -/* PLL Functions */ -static int tegra2_pll_clk_wait_for_lock(struct clk *c) -{ - udelay(c->u.pll.lock_delay); - - return 0; -} - -static void tegra2_pll_clk_init(struct clk *c) -{ - u32 val = clk_readl(c->reg + PLL_BASE); - - c->state = (val & PLL_BASE_ENABLE) ? ON : OFF; - - if (c->flags & PLL_FIXED && !(val & PLL_BASE_OVERRIDE)) { - pr_warning("Clock %s has unknown fixed frequency\n", c->name); - c->mul = 1; - c->div = 1; - } else if (val & PLL_BASE_BYPASS) { - c->mul = 1; - c->div = 1; - } else { - c->mul = (val & PLL_BASE_DIVN_MASK) >> PLL_BASE_DIVN_SHIFT; - c->div = (val & PLL_BASE_DIVM_MASK) >> PLL_BASE_DIVM_SHIFT; - if (c->flags & PLLU) - c->div *= (val & PLLU_BASE_POST_DIV) ? 1 : 2; - else - c->div *= (val & PLL_BASE_DIVP_MASK) ? 2 : 1; - } -} - -static int tegra2_pll_clk_enable(struct clk *c) -{ - u32 val; - pr_debug("%s on clock %s\n", __func__, c->name); - - val = clk_readl(c->reg + PLL_BASE); - val &= ~PLL_BASE_BYPASS; - val |= PLL_BASE_ENABLE; - clk_writel(val, c->reg + PLL_BASE); - - tegra2_pll_clk_wait_for_lock(c); - - return 0; -} - -static void tegra2_pll_clk_disable(struct clk *c) -{ - u32 val; - pr_debug("%s on clock %s\n", __func__, c->name); - - val = clk_readl(c->reg); - val &= ~(PLL_BASE_BYPASS | PLL_BASE_ENABLE); - clk_writel(val, c->reg); -} - -static int tegra2_pll_clk_set_rate(struct clk *c, unsigned long rate) -{ - u32 val; - unsigned long input_rate; - const struct clk_pll_freq_table *sel; - - pr_debug("%s: %s %lu\n", __func__, c->name, rate); - - input_rate = clk_get_rate(c->parent); - for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) { - if (sel->input_rate == input_rate && sel->output_rate == rate) { - c->mul = sel->n; - c->div = sel->m * sel->p; - - val = clk_readl(c->reg + PLL_BASE); - if (c->flags & PLL_FIXED) - val |= PLL_BASE_OVERRIDE; - val &= ~(PLL_BASE_DIVP_MASK | PLL_BASE_DIVN_MASK | - PLL_BASE_DIVM_MASK); - val |= (sel->m << PLL_BASE_DIVM_SHIFT) | - (sel->n << PLL_BASE_DIVN_SHIFT); - BUG_ON(sel->p < 1 || sel->p > 2); - if (c->flags & PLLU) { - if (sel->p == 1) - val |= PLLU_BASE_POST_DIV; - } else { - if (sel->p == 2) - val |= 1 << PLL_BASE_DIVP_SHIFT; - } - clk_writel(val, c->reg + PLL_BASE); - - if (c->flags & PLL_HAS_CPCON) { - val = clk_readl(c->reg + PLL_MISC(c)); - val &= ~PLL_MISC_CPCON_MASK; - val |= sel->cpcon << PLL_MISC_CPCON_SHIFT; - clk_writel(val, c->reg + PLL_MISC(c)); - } - - if (c->state == ON) - tegra2_pll_clk_enable(c); - - return 0; - } - } - return -EINVAL; -} - -static struct clk_ops tegra_pll_ops = { - .init = tegra2_pll_clk_init, - .enable = tegra2_pll_clk_enable, - .disable = tegra2_pll_clk_disable, - .set_rate = tegra2_pll_clk_set_rate, -}; - -static void tegra2_pllx_clk_init(struct clk *c) -{ - tegra2_pll_clk_init(c); - - if (tegra_sku_id == 7) - c->max_rate = 750000000; -} - -static struct clk_ops tegra_pllx_ops = { - .init = tegra2_pllx_clk_init, - .enable = tegra2_pll_clk_enable, - .disable = tegra2_pll_clk_disable, - .set_rate = tegra2_pll_clk_set_rate, -}; - -static int tegra2_plle_clk_enable(struct clk *c) -{ - u32 val; - - pr_debug("%s on clock %s\n", __func__, c->name); - - mdelay(1); - - val = clk_readl(c->reg + PLL_BASE); - if (!(val & PLLE_MISC_READY)) - return -EBUSY; - - val = clk_readl(c->reg + PLL_BASE); - val |= PLL_BASE_ENABLE | PLL_BASE_BYPASS; - clk_writel(val, c->reg + PLL_BASE); - - return 0; -} - -static struct clk_ops tegra_plle_ops = { - .init = tegra2_pll_clk_init, - .enable = tegra2_plle_clk_enable, - .set_rate = tegra2_pll_clk_set_rate, -}; - -/* Clock divider ops */ -static void tegra2_pll_div_clk_init(struct clk *c) -{ - u32 val = clk_readl(c->reg); - u32 divu71; - val >>= c->reg_shift; - c->state = (val & PLL_OUT_CLKEN) ? ON : OFF; - if (!(val & PLL_OUT_RESET_DISABLE)) - c->state = OFF; - - if (c->flags & DIV_U71) { - divu71 = (val & PLL_OUT_RATIO_MASK) >> PLL_OUT_RATIO_SHIFT; - c->div = (divu71 + 2); - c->mul = 2; - } else if (c->flags & DIV_2) { - c->div = 2; - c->mul = 1; - } else { - c->div = 1; - c->mul = 1; - } -} - -static int tegra2_pll_div_clk_enable(struct clk *c) -{ - u32 val; - u32 new_val; - unsigned long flags; - - pr_debug("%s: %s\n", __func__, c->name); - if (c->flags & DIV_U71) { - spin_lock_irqsave(&clock_register_lock, flags); - val = clk_readl(c->reg); - new_val = val >> c->reg_shift; - new_val &= 0xFFFF; - - new_val |= PLL_OUT_CLKEN | PLL_OUT_RESET_DISABLE; - - val &= ~(0xFFFF << c->reg_shift); - val |= new_val << c->reg_shift; - clk_writel(val, c->reg); - spin_unlock_irqrestore(&clock_register_lock, flags); - return 0; - } else if (c->flags & DIV_2) { - BUG_ON(!(c->flags & PLLD)); - spin_lock_irqsave(&clock_register_lock, flags); - val = clk_readl(c->reg); - val &= ~PLLD_MISC_DIV_RST; - clk_writel(val, c->reg); - spin_unlock_irqrestore(&clock_register_lock, flags); - return 0; - } - return -EINVAL; -} - -static void tegra2_pll_div_clk_disable(struct clk *c) -{ - u32 val; - u32 new_val; - unsigned long flags; - - pr_debug("%s: %s\n", __func__, c->name); - if (c->flags & DIV_U71) { - spin_lock_irqsave(&clock_register_lock, flags); - val = clk_readl(c->reg); - new_val = val >> c->reg_shift; - new_val &= 0xFFFF; - - new_val &= ~(PLL_OUT_CLKEN | PLL_OUT_RESET_DISABLE); - - val &= ~(0xFFFF << c->reg_shift); - val |= new_val << c->reg_shift; - clk_writel(val, c->reg); - spin_unlock_irqrestore(&clock_register_lock, flags); - } else if (c->flags & DIV_2) { - BUG_ON(!(c->flags & PLLD)); - spin_lock_irqsave(&clock_register_lock, flags); - val = clk_readl(c->reg); - val |= PLLD_MISC_DIV_RST; - clk_writel(val, c->reg); - spin_unlock_irqrestore(&clock_register_lock, flags); - } -} - -static int tegra2_pll_div_clk_set_rate(struct clk *c, unsigned long rate) -{ - u32 val; - u32 new_val; - int divider_u71; - unsigned long parent_rate = clk_get_rate(c->parent); - unsigned long flags; - - pr_debug("%s: %s %lu\n", __func__, c->name, rate); - if (c->flags & DIV_U71) { - divider_u71 = clk_div71_get_divider(parent_rate, rate); - if (divider_u71 >= 0) { - spin_lock_irqsave(&clock_register_lock, flags); - val = clk_readl(c->reg); - new_val = val >> c->reg_shift; - new_val &= 0xFFFF; - if (c->flags & DIV_U71_FIXED) - new_val |= PLL_OUT_OVERRIDE; - new_val &= ~PLL_OUT_RATIO_MASK; - new_val |= divider_u71 << PLL_OUT_RATIO_SHIFT; - - val &= ~(0xFFFF << c->reg_shift); - val |= new_val << c->reg_shift; - clk_writel(val, c->reg); - c->div = divider_u71 + 2; - c->mul = 2; - spin_unlock_irqrestore(&clock_register_lock, flags); - return 0; - } - } else if (c->flags & DIV_2) { - if (parent_rate == rate * 2) - return 0; - } - return -EINVAL; -} - -static long tegra2_pll_div_clk_round_rate(struct clk *c, unsigned long rate) -{ - int divider; - unsigned long parent_rate = clk_get_rate(c->parent); - pr_debug("%s: %s %lu\n", __func__, c->name, rate); - - if (c->flags & DIV_U71) { - divider = clk_div71_get_divider(parent_rate, rate); - if (divider < 0) - return divider; - return DIV_ROUND_UP(parent_rate * 2, divider + 2); - } else if (c->flags & DIV_2) { - return DIV_ROUND_UP(parent_rate, 2); - } - return -EINVAL; -} - -static struct clk_ops tegra_pll_div_ops = { - .init = tegra2_pll_div_clk_init, - .enable = tegra2_pll_div_clk_enable, - .disable = tegra2_pll_div_clk_disable, - .set_rate = tegra2_pll_div_clk_set_rate, - .round_rate = tegra2_pll_div_clk_round_rate, -}; - -/* Periph clk ops */ - -static void tegra2_periph_clk_init(struct clk *c) -{ - u32 val = clk_readl(c->reg); - const struct clk_mux_sel *mux = NULL; - const struct clk_mux_sel *sel; - u32 shift; - u32 mask; - - if (c->flags & MUX_PWM) { - shift = PERIPH_CLK_SOURCE_PWM_SHIFT; - mask = PERIPH_CLK_SOURCE_PWM_MASK; - } else { - shift = PERIPH_CLK_SOURCE_SHIFT; - mask = PERIPH_CLK_SOURCE_MASK; - } - - if (c->flags & MUX) { - for (sel = c->inputs; sel->input != NULL; sel++) { - if ((val & mask) >> shift == sel->value) - mux = sel; - } - BUG_ON(!mux); - - c->parent = mux->input; - } else { - c->parent = c->inputs[0].input; - } - - if (c->flags & DIV_U71) { - u32 divu71 = val & PERIPH_CLK_SOURCE_DIVU71_MASK; - c->div = divu71 + 2; - c->mul = 2; - } else if (c->flags & DIV_U16) { - u32 divu16 = val & PERIPH_CLK_SOURCE_DIVU16_MASK; - c->div = divu16 + 1; - c->mul = 1; - } else { - c->div = 1; - c->mul = 1; - } - - c->state = ON; - - if (!c->u.periph.clk_num) - return; - - if (!(clk_readl(CLK_OUT_ENB + PERIPH_CLK_TO_ENB_REG(c)) & - PERIPH_CLK_TO_ENB_BIT(c))) - c->state = OFF; - - if (!(c->flags & PERIPH_NO_RESET)) - if (clk_readl(RST_DEVICES + PERIPH_CLK_TO_ENB_REG(c)) & - PERIPH_CLK_TO_ENB_BIT(c)) - c->state = OFF; -} - -static int tegra2_periph_clk_enable(struct clk *c) -{ - u32 val; - unsigned long flags; - int refcount; - pr_debug("%s on clock %s\n", __func__, c->name); - - if (!c->u.periph.clk_num) - return 0; - - spin_lock_irqsave(&clock_register_lock, flags); - - refcount = tegra_periph_clk_enable_refcount[c->u.periph.clk_num]++; - - if (refcount > 1) - goto out; - - clk_writel(PERIPH_CLK_TO_ENB_BIT(c), - CLK_OUT_ENB_SET + PERIPH_CLK_TO_ENB_SET_REG(c)); - if (!(c->flags & PERIPH_NO_RESET) && !(c->flags & PERIPH_MANUAL_RESET)) - clk_writel(PERIPH_CLK_TO_ENB_BIT(c), - RST_DEVICES_CLR + PERIPH_CLK_TO_ENB_SET_REG(c)); - if (c->flags & PERIPH_EMC_ENB) { - /* The EMC peripheral clock has 2 extra enable bits */ - /* FIXME: Do they need to be disabled? */ - val = clk_readl(c->reg); - val |= 0x3 << 24; - clk_writel(val, c->reg); - } - -out: - spin_unlock_irqrestore(&clock_register_lock, flags); - - return 0; -} - -static void tegra2_periph_clk_disable(struct clk *c) -{ - unsigned long flags; - - pr_debug("%s on clock %s\n", __func__, c->name); - - if (!c->u.periph.clk_num) - return; - - spin_lock_irqsave(&clock_register_lock, flags); - - if (c->refcnt) - tegra_periph_clk_enable_refcount[c->u.periph.clk_num]--; - - if (tegra_periph_clk_enable_refcount[c->u.periph.clk_num] == 0) - clk_writel(PERIPH_CLK_TO_ENB_BIT(c), - CLK_OUT_ENB_CLR + PERIPH_CLK_TO_ENB_SET_REG(c)); - - spin_unlock_irqrestore(&clock_register_lock, flags); -} - -static void tegra2_periph_clk_reset(struct clk *c, bool assert) -{ - unsigned long base = assert ? RST_DEVICES_SET : RST_DEVICES_CLR; - - pr_debug("%s %s on clock %s\n", __func__, - assert ? "assert" : "deassert", c->name); - - BUG_ON(!c->u.periph.clk_num); - - if (!(c->flags & PERIPH_NO_RESET)) - clk_writel(PERIPH_CLK_TO_ENB_BIT(c), - base + PERIPH_CLK_TO_ENB_SET_REG(c)); -} - -static int tegra2_periph_clk_set_parent(struct clk *c, struct clk *p) -{ - u32 val; - const struct clk_mux_sel *sel; - u32 mask, shift; - - pr_debug("%s: %s %s\n", __func__, c->name, p->name); - - if (c->flags & MUX_PWM) { - shift = PERIPH_CLK_SOURCE_PWM_SHIFT; - mask = PERIPH_CLK_SOURCE_PWM_MASK; - } else { - shift = PERIPH_CLK_SOURCE_SHIFT; - mask = PERIPH_CLK_SOURCE_MASK; - } - - for (sel = c->inputs; sel->input != NULL; sel++) { - if (sel->input == p) { - val = clk_readl(c->reg); - val &= ~mask; - val |= (sel->value) << shift; - - if (c->refcnt) - clk_enable(p); - - clk_writel(val, c->reg); - - if (c->refcnt && c->parent) - clk_disable(c->parent); - - clk_reparent(c, p); - return 0; - } - } - - return -EINVAL; -} - -static int tegra2_periph_clk_set_rate(struct clk *c, unsigned long rate) -{ - u32 val; - int divider; - unsigned long parent_rate = clk_get_rate(c->parent); - - if (c->flags & DIV_U71) { - divider = clk_div71_get_divider(parent_rate, rate); - if (divider >= 0) { - val = clk_readl(c->reg); - val &= ~PERIPH_CLK_SOURCE_DIVU71_MASK; - val |= divider; - clk_writel(val, c->reg); - c->div = divider + 2; - c->mul = 2; - return 0; - } - } else if (c->flags & DIV_U16) { - divider = clk_div16_get_divider(parent_rate, rate); - if (divider >= 0) { - val = clk_readl(c->reg); - val &= ~PERIPH_CLK_SOURCE_DIVU16_MASK; - val |= divider; - clk_writel(val, c->reg); - c->div = divider + 1; - c->mul = 1; - return 0; - } - } else if (parent_rate <= rate) { - c->div = 1; - c->mul = 1; - return 0; - } - return -EINVAL; -} - -static long tegra2_periph_clk_round_rate(struct clk *c, - unsigned long rate) -{ - int divider; - unsigned long parent_rate = clk_get_rate(c->parent); - pr_debug("%s: %s %lu\n", __func__, c->name, rate); - - if (c->flags & DIV_U71) { - divider = clk_div71_get_divider(parent_rate, rate); - if (divider < 0) - return divider; - - return DIV_ROUND_UP(parent_rate * 2, divider + 2); - } else if (c->flags & DIV_U16) { - divider = clk_div16_get_divider(parent_rate, rate); - if (divider < 0) - return divider; - return DIV_ROUND_UP(parent_rate, divider + 1); - } - return -EINVAL; -} - -static struct clk_ops tegra_periph_clk_ops = { - .init = &tegra2_periph_clk_init, - .enable = &tegra2_periph_clk_enable, - .disable = &tegra2_periph_clk_disable, - .set_parent = &tegra2_periph_clk_set_parent, - .set_rate = &tegra2_periph_clk_set_rate, - .round_rate = &tegra2_periph_clk_round_rate, - .reset = &tegra2_periph_clk_reset, -}; - -/* The SDMMC controllers have extra bits in the clock source register that - * adjust the delay between the clock and data to compenstate for delays - * on the PCB. */ -void tegra2_sdmmc_tap_delay(struct clk *c, int delay) -{ - u32 reg; - unsigned long flags; - - spin_lock_irqsave(&c->spinlock, flags); - - delay = clamp(delay, 0, 15); - reg = clk_readl(c->reg); - reg &= ~SDMMC_CLK_INT_FB_DLY_MASK; - reg |= SDMMC_CLK_INT_FB_SEL; - reg |= delay << SDMMC_CLK_INT_FB_DLY_SHIFT; - clk_writel(reg, c->reg); - - spin_unlock_irqrestore(&c->spinlock, flags); -} - -/* External memory controller clock ops */ -static void tegra2_emc_clk_init(struct clk *c) -{ - tegra2_periph_clk_init(c); - c->max_rate = clk_get_rate_locked(c); -} - -static long tegra2_emc_clk_round_rate(struct clk *c, unsigned long rate) -{ - long emc_rate; - long clk_rate; - - /* - * The slowest entry in the EMC clock table that is at least as - * fast as rate. - */ - emc_rate = tegra_emc_round_rate(rate); - if (emc_rate < 0) - return c->max_rate; - - /* - * The fastest rate the PLL will generate that is at most the - * requested rate. - */ - clk_rate = tegra2_periph_clk_round_rate(c, emc_rate); - - /* - * If this fails, and emc_rate > clk_rate, it's because the maximum - * rate in the EMC tables is larger than the maximum rate of the EMC - * clock. The EMC clock's max rate is the rate it was running when the - * kernel booted. Such a mismatch is probably due to using the wrong - * BCT, i.e. using a Tegra20 BCT with an EMC table written for Tegra25. - */ - WARN_ONCE(emc_rate != clk_rate, - "emc_rate %ld != clk_rate %ld", - emc_rate, clk_rate); - - return emc_rate; -} - -static int tegra2_emc_clk_set_rate(struct clk *c, unsigned long rate) -{ - int ret; - /* - * The Tegra2 memory controller has an interlock with the clock - * block that allows memory shadowed registers to be updated, - * and then transfer them to the main registers at the same - * time as the clock update without glitches. - */ - ret = tegra_emc_set_rate(rate); - if (ret < 0) - return ret; - - ret = tegra2_periph_clk_set_rate(c, rate); - udelay(1); - - return ret; -} - -static struct clk_ops tegra_emc_clk_ops = { - .init = &tegra2_emc_clk_init, - .enable = &tegra2_periph_clk_enable, - .disable = &tegra2_periph_clk_disable, - .set_parent = &tegra2_periph_clk_set_parent, - .set_rate = &tegra2_emc_clk_set_rate, - .round_rate = &tegra2_emc_clk_round_rate, - .reset = &tegra2_periph_clk_reset, -}; - -/* Clock doubler ops */ -static void tegra2_clk_double_init(struct clk *c) -{ - c->mul = 2; - c->div = 1; - c->state = ON; - - if (!c->u.periph.clk_num) - return; - - if (!(clk_readl(CLK_OUT_ENB + PERIPH_CLK_TO_ENB_REG(c)) & - PERIPH_CLK_TO_ENB_BIT(c))) - c->state = OFF; -}; - -static int tegra2_clk_double_set_rate(struct clk *c, unsigned long rate) -{ - if (rate != 2 * clk_get_rate(c->parent)) - return -EINVAL; - c->mul = 2; - c->div = 1; - return 0; -} - -static struct clk_ops tegra_clk_double_ops = { - .init = &tegra2_clk_double_init, - .enable = &tegra2_periph_clk_enable, - .disable = &tegra2_periph_clk_disable, - .set_rate = &tegra2_clk_double_set_rate, -}; - -/* Audio sync clock ops */ -static void tegra2_audio_sync_clk_init(struct clk *c) -{ - int source; - const struct clk_mux_sel *sel; - u32 val = clk_readl(c->reg); - c->state = (val & (1<<4)) ? OFF : ON; - source = val & 0xf; - for (sel = c->inputs; sel->input != NULL; sel++) - if (sel->value == source) - break; - BUG_ON(sel->input == NULL); - c->parent = sel->input; -} - -static int tegra2_audio_sync_clk_enable(struct clk *c) -{ - clk_writel(0, c->reg); - return 0; -} - -static void tegra2_audio_sync_clk_disable(struct clk *c) -{ - clk_writel(1, c->reg); -} - -static int tegra2_audio_sync_clk_set_parent(struct clk *c, struct clk *p) -{ - u32 val; - const struct clk_mux_sel *sel; - for (sel = c->inputs; sel->input != NULL; sel++) { - if (sel->input == p) { - val = clk_readl(c->reg); - val &= ~0xf; - val |= sel->value; - - if (c->refcnt) - clk_enable(p); - - clk_writel(val, c->reg); - - if (c->refcnt && c->parent) - clk_disable(c->parent); - - clk_reparent(c, p); - return 0; - } - } - - return -EINVAL; -} - -static struct clk_ops tegra_audio_sync_clk_ops = { - .init = tegra2_audio_sync_clk_init, - .enable = tegra2_audio_sync_clk_enable, - .disable = tegra2_audio_sync_clk_disable, - .set_parent = tegra2_audio_sync_clk_set_parent, -}; - -/* cdev1 and cdev2 (dap_mclk1 and dap_mclk2) ops */ - -static void tegra2_cdev_clk_init(struct clk *c) -{ - /* We could un-tristate the cdev1 or cdev2 pingroup here; this is - * currently done in the pinmux code. */ - c->state = ON; - - BUG_ON(!c->u.periph.clk_num); - - if (!(clk_readl(CLK_OUT_ENB + PERIPH_CLK_TO_ENB_REG(c)) & - PERIPH_CLK_TO_ENB_BIT(c))) - c->state = OFF; -} - -static int tegra2_cdev_clk_enable(struct clk *c) -{ - BUG_ON(!c->u.periph.clk_num); - - clk_writel(PERIPH_CLK_TO_ENB_BIT(c), - CLK_OUT_ENB_SET + PERIPH_CLK_TO_ENB_SET_REG(c)); - return 0; -} - -static void tegra2_cdev_clk_disable(struct clk *c) -{ - BUG_ON(!c->u.periph.clk_num); - - clk_writel(PERIPH_CLK_TO_ENB_BIT(c), - CLK_OUT_ENB_CLR + PERIPH_CLK_TO_ENB_SET_REG(c)); -} - -static struct clk_ops tegra_cdev_clk_ops = { - .init = &tegra2_cdev_clk_init, - .enable = &tegra2_cdev_clk_enable, - .disable = &tegra2_cdev_clk_disable, -}; - -/* shared bus ops */ -/* - * Some clocks may have multiple downstream users that need to request a - * higher clock rate. Shared bus clocks provide a unique shared_bus_user - * clock to each user. The frequency of the bus is set to the highest - * enabled shared_bus_user clock, with a minimum value set by the - * shared bus. - */ -static int tegra_clk_shared_bus_update(struct clk *bus) -{ - struct clk *c; - unsigned long rate = bus->min_rate; - - list_for_each_entry(c, &bus->shared_bus_list, u.shared_bus_user.node) - if (c->u.shared_bus_user.enabled) - rate = max(c->u.shared_bus_user.rate, rate); - - if (rate == clk_get_rate_locked(bus)) - return 0; - - return clk_set_rate_locked(bus, rate); -}; - -static void tegra_clk_shared_bus_init(struct clk *c) -{ - unsigned long flags; - - c->max_rate = c->parent->max_rate; - c->u.shared_bus_user.rate = c->parent->max_rate; - c->state = OFF; - c->set = true; - - spin_lock_irqsave(&c->parent->spinlock, flags); - - list_add_tail(&c->u.shared_bus_user.node, - &c->parent->shared_bus_list); - - spin_unlock_irqrestore(&c->parent->spinlock, flags); -} - -static int tegra_clk_shared_bus_set_rate(struct clk *c, unsigned long rate) -{ - unsigned long flags; - int ret; - long new_rate = rate; - - new_rate = clk_round_rate(c->parent, new_rate); - if (new_rate < 0) - return new_rate; - - spin_lock_irqsave(&c->parent->spinlock, flags); - - c->u.shared_bus_user.rate = new_rate; - ret = tegra_clk_shared_bus_update(c->parent); - - spin_unlock_irqrestore(&c->parent->spinlock, flags); - - return ret; -} - -static long tegra_clk_shared_bus_round_rate(struct clk *c, unsigned long rate) -{ - return clk_round_rate(c->parent, rate); -} - -static int tegra_clk_shared_bus_enable(struct clk *c) -{ - unsigned long flags; - int ret; - - spin_lock_irqsave(&c->parent->spinlock, flags); - - c->u.shared_bus_user.enabled = true; - ret = tegra_clk_shared_bus_update(c->parent); - - spin_unlock_irqrestore(&c->parent->spinlock, flags); - - return ret; -} - -static void tegra_clk_shared_bus_disable(struct clk *c) -{ - unsigned long flags; - int ret; - - spin_lock_irqsave(&c->parent->spinlock, flags); - - c->u.shared_bus_user.enabled = false; - ret = tegra_clk_shared_bus_update(c->parent); - WARN_ON_ONCE(ret); - - spin_unlock_irqrestore(&c->parent->spinlock, flags); -} - -static struct clk_ops tegra_clk_shared_bus_ops = { - .init = tegra_clk_shared_bus_init, - .enable = tegra_clk_shared_bus_enable, - .disable = tegra_clk_shared_bus_disable, - .set_rate = tegra_clk_shared_bus_set_rate, - .round_rate = tegra_clk_shared_bus_round_rate, -}; - - -/* Clock definitions */ -static struct clk tegra_clk_32k = { - .name = "clk_32k", - .rate = 32768, - .ops = NULL, - .max_rate = 32768, -}; - -static struct clk_pll_freq_table tegra_pll_s_freq_table[] = { - {32768, 12000000, 366, 1, 1, 0}, - {32768, 13000000, 397, 1, 1, 0}, - {32768, 19200000, 586, 1, 1, 0}, - {32768, 26000000, 793, 1, 1, 0}, - {0, 0, 0, 0, 0, 0}, -}; - -static struct clk tegra_pll_s = { - .name = "pll_s", - .flags = PLL_ALT_MISC_REG, - .ops = &tegra_pll_ops, - .parent = &tegra_clk_32k, - .max_rate = 26000000, - .reg = 0xf0, - .u.pll = { - .input_min = 32768, - .input_max = 32768, - .cf_min = 0, /* FIXME */ - .cf_max = 0, /* FIXME */ - .vco_min = 12000000, - .vco_max = 26000000, - .freq_table = tegra_pll_s_freq_table, - .lock_delay = 300, - }, -}; - -static struct clk_mux_sel tegra_clk_m_sel[] = { - { .input = &tegra_clk_32k, .value = 0}, - { .input = &tegra_pll_s, .value = 1}, - { NULL , 0}, -}; - -static struct clk tegra_clk_m = { - .name = "clk_m", - .flags = ENABLE_ON_INIT, - .ops = &tegra_clk_m_ops, - .inputs = tegra_clk_m_sel, - .reg = 0x1fc, - .reg_shift = 28, - .max_rate = 26000000, -}; - -static struct clk_pll_freq_table tegra_pll_c_freq_table[] = { - { 12000000, 600000000, 600, 12, 1, 8 }, - { 13000000, 600000000, 600, 13, 1, 8 }, - { 19200000, 600000000, 500, 16, 1, 6 }, - { 26000000, 600000000, 600, 26, 1, 8 }, - { 0, 0, 0, 0, 0, 0 }, -}; - -static struct clk tegra_pll_c = { - .name = "pll_c", - .flags = PLL_HAS_CPCON, - .ops = &tegra_pll_ops, - .reg = 0x80, - .parent = &tegra_clk_m, - .max_rate = 600000000, - .u.pll = { - .input_min = 2000000, - .input_max = 31000000, - .cf_min = 1000000, - .cf_max = 6000000, - .vco_min = 20000000, - .vco_max = 1400000000, - .freq_table = tegra_pll_c_freq_table, - .lock_delay = 300, - }, -}; - -static struct clk tegra_pll_c_out1 = { - .name = "pll_c_out1", - .ops = &tegra_pll_div_ops, - .flags = DIV_U71, - .parent = &tegra_pll_c, - .reg = 0x84, - .reg_shift = 0, - .max_rate = 600000000, -}; - -static struct clk_pll_freq_table tegra_pll_m_freq_table[] = { - { 12000000, 666000000, 666, 12, 1, 8}, - { 13000000, 666000000, 666, 13, 1, 8}, - { 19200000, 666000000, 555, 16, 1, 8}, - { 26000000, 666000000, 666, 26, 1, 8}, - { 12000000, 600000000, 600, 12, 1, 8}, - { 13000000, 600000000, 600, 13, 1, 8}, - { 19200000, 600000000, 375, 12, 1, 6}, - { 26000000, 600000000, 600, 26, 1, 8}, - { 0, 0, 0, 0, 0, 0 }, -}; - -static struct clk tegra_pll_m = { - .name = "pll_m", - .flags = PLL_HAS_CPCON, - .ops = &tegra_pll_ops, - .reg = 0x90, - .parent = &tegra_clk_m, - .max_rate = 800000000, - .u.pll = { - .input_min = 2000000, - .input_max = 31000000, - .cf_min = 1000000, - .cf_max = 6000000, - .vco_min = 20000000, - .vco_max = 1200000000, - .freq_table = tegra_pll_m_freq_table, - .lock_delay = 300, - }, -}; - -static struct clk tegra_pll_m_out1 = { - .name = "pll_m_out1", - .ops = &tegra_pll_div_ops, - .flags = DIV_U71, - .parent = &tegra_pll_m, - .reg = 0x94, - .reg_shift = 0, - .max_rate = 600000000, -}; - -static struct clk_pll_freq_table tegra_pll_p_freq_table[] = { - { 12000000, 216000000, 432, 12, 2, 8}, - { 13000000, 216000000, 432, 13, 2, 8}, - { 19200000, 216000000, 90, 4, 2, 1}, - { 26000000, 216000000, 432, 26, 2, 8}, - { 12000000, 432000000, 432, 12, 1, 8}, - { 13000000, 432000000, 432, 13, 1, 8}, - { 19200000, 432000000, 90, 4, 1, 1}, - { 26000000, 432000000, 432, 26, 1, 8}, - { 0, 0, 0, 0, 0, 0 }, -}; - -static struct clk tegra_pll_p = { - .name = "pll_p", - .flags = ENABLE_ON_INIT | PLL_FIXED | PLL_HAS_CPCON, - .ops = &tegra_pll_ops, - .reg = 0xa0, - .parent = &tegra_clk_m, - .max_rate = 432000000, - .u.pll = { - .input_min = 2000000, - .input_max = 31000000, - .cf_min = 1000000, - .cf_max = 6000000, - .vco_min = 20000000, - .vco_max = 1400000000, - .freq_table = tegra_pll_p_freq_table, - .lock_delay = 300, - }, -}; - -static struct clk tegra_pll_p_out1 = { - .name = "pll_p_out1", - .ops = &tegra_pll_div_ops, - .flags = ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, - .parent = &tegra_pll_p, - .reg = 0xa4, - .reg_shift = 0, - .max_rate = 432000000, -}; - -static struct clk tegra_pll_p_out2 = { - .name = "pll_p_out2", - .ops = &tegra_pll_div_ops, - .flags = ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, - .parent = &tegra_pll_p, - .reg = 0xa4, - .reg_shift = 16, - .max_rate = 432000000, -}; - -static struct clk tegra_pll_p_out3 = { - .name = "pll_p_out3", - .ops = &tegra_pll_div_ops, - .flags = ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, - .parent = &tegra_pll_p, - .reg = 0xa8, - .reg_shift = 0, - .max_rate = 432000000, -}; - -static struct clk tegra_pll_p_out4 = { - .name = "pll_p_out4", - .ops = &tegra_pll_div_ops, - .flags = ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, - .parent = &tegra_pll_p, - .reg = 0xa8, - .reg_shift = 16, - .max_rate = 432000000, -}; - -static struct clk_pll_freq_table tegra_pll_a_freq_table[] = { - { 28800000, 56448000, 49, 25, 1, 1}, - { 28800000, 73728000, 64, 25, 1, 1}, - { 28800000, 24000000, 5, 6, 1, 1}, - { 0, 0, 0, 0, 0, 0 }, -}; - -static struct clk tegra_pll_a = { - .name = "pll_a", - .flags = PLL_HAS_CPCON, - .ops = &tegra_pll_ops, - .reg = 0xb0, - .parent = &tegra_pll_p_out1, - .max_rate = 73728000, - .u.pll = { - .input_min = 2000000, - .input_max = 31000000, - .cf_min = 1000000, - .cf_max = 6000000, - .vco_min = 20000000, - .vco_max = 1400000000, - .freq_table = tegra_pll_a_freq_table, - .lock_delay = 300, - }, -}; - -static struct clk tegra_pll_a_out0 = { - .name = "pll_a_out0", - .ops = &tegra_pll_div_ops, - .flags = DIV_U71, - .parent = &tegra_pll_a, - .reg = 0xb4, - .reg_shift = 0, - .max_rate = 73728000, -}; - -static struct clk_pll_freq_table tegra_pll_d_freq_table[] = { - { 12000000, 216000000, 216, 12, 1, 4}, - { 13000000, 216000000, 216, 13, 1, 4}, - { 19200000, 216000000, 135, 12, 1, 3}, - { 26000000, 216000000, 216, 26, 1, 4}, - - { 12000000, 594000000, 594, 12, 1, 8}, - { 13000000, 594000000, 594, 13, 1, 8}, - { 19200000, 594000000, 495, 16, 1, 8}, - { 26000000, 594000000, 594, 26, 1, 8}, - - { 12000000, 1000000000, 1000, 12, 1, 12}, - { 13000000, 1000000000, 1000, 13, 1, 12}, - { 19200000, 1000000000, 625, 12, 1, 8}, - { 26000000, 1000000000, 1000, 26, 1, 12}, - - { 0, 0, 0, 0, 0, 0 }, -}; - -static struct clk tegra_pll_d = { - .name = "pll_d", - .flags = PLL_HAS_CPCON | PLLD, - .ops = &tegra_pll_ops, - .reg = 0xd0, - .parent = &tegra_clk_m, - .max_rate = 1000000000, - .u.pll = { - .input_min = 2000000, - .input_max = 40000000, - .cf_min = 1000000, - .cf_max = 6000000, - .vco_min = 40000000, - .vco_max = 1000000000, - .freq_table = tegra_pll_d_freq_table, - .lock_delay = 1000, - }, -}; - -static struct clk tegra_pll_d_out0 = { - .name = "pll_d_out0", - .ops = &tegra_pll_div_ops, - .flags = DIV_2 | PLLD, - .parent = &tegra_pll_d, - .max_rate = 500000000, -}; - -static struct clk_pll_freq_table tegra_pll_u_freq_table[] = { - { 12000000, 480000000, 960, 12, 2, 0}, - { 13000000, 480000000, 960, 13, 2, 0}, - { 19200000, 480000000, 200, 4, 2, 0}, - { 26000000, 480000000, 960, 26, 2, 0}, - { 0, 0, 0, 0, 0, 0 }, -}; - -static struct clk tegra_pll_u = { - .name = "pll_u", - .flags = PLLU, - .ops = &tegra_pll_ops, - .reg = 0xc0, - .parent = &tegra_clk_m, - .max_rate = 480000000, - .u.pll = { - .input_min = 2000000, - .input_max = 40000000, - .cf_min = 1000000, - .cf_max = 6000000, - .vco_min = 480000000, - .vco_max = 960000000, - .freq_table = tegra_pll_u_freq_table, - .lock_delay = 1000, - }, -}; - -static struct clk_pll_freq_table tegra_pll_x_freq_table[] = { - /* 1 GHz */ - { 12000000, 1000000000, 1000, 12, 1, 12}, - { 13000000, 1000000000, 1000, 13, 1, 12}, - { 19200000, 1000000000, 625, 12, 1, 8}, - { 26000000, 1000000000, 1000, 26, 1, 12}, - - /* 912 MHz */ - { 12000000, 912000000, 912, 12, 1, 12}, - { 13000000, 912000000, 912, 13, 1, 12}, - { 19200000, 912000000, 760, 16, 1, 8}, - { 26000000, 912000000, 912, 26, 1, 12}, - - /* 816 MHz */ - { 12000000, 816000000, 816, 12, 1, 12}, - { 13000000, 816000000, 816, 13, 1, 12}, - { 19200000, 816000000, 680, 16, 1, 8}, - { 26000000, 816000000, 816, 26, 1, 12}, - - /* 760 MHz */ - { 12000000, 760000000, 760, 12, 1, 12}, - { 13000000, 760000000, 760, 13, 1, 12}, - { 19200000, 760000000, 950, 24, 1, 8}, - { 26000000, 760000000, 760, 26, 1, 12}, - - /* 750 MHz */ - { 12000000, 750000000, 750, 12, 1, 12}, - { 13000000, 750000000, 750, 13, 1, 12}, - { 19200000, 750000000, 625, 16, 1, 8}, - { 26000000, 750000000, 750, 26, 1, 12}, - - /* 608 MHz */ - { 12000000, 608000000, 608, 12, 1, 12}, - { 13000000, 608000000, 608, 13, 1, 12}, - { 19200000, 608000000, 380, 12, 1, 8}, - { 26000000, 608000000, 608, 26, 1, 12}, - - /* 456 MHz */ - { 12000000, 456000000, 456, 12, 1, 12}, - { 13000000, 456000000, 456, 13, 1, 12}, - { 19200000, 456000000, 380, 16, 1, 8}, - { 26000000, 456000000, 456, 26, 1, 12}, - - /* 312 MHz */ - { 12000000, 312000000, 312, 12, 1, 12}, - { 13000000, 312000000, 312, 13, 1, 12}, - { 19200000, 312000000, 260, 16, 1, 8}, - { 26000000, 312000000, 312, 26, 1, 12}, - - { 0, 0, 0, 0, 0, 0 }, -}; - -static struct clk tegra_pll_x = { - .name = "pll_x", - .flags = PLL_HAS_CPCON | PLL_ALT_MISC_REG, - .ops = &tegra_pllx_ops, - .reg = 0xe0, - .parent = &tegra_clk_m, - .max_rate = 1000000000, - .u.pll = { - .input_min = 2000000, - .input_max = 31000000, - .cf_min = 1000000, - .cf_max = 6000000, - .vco_min = 20000000, - .vco_max = 1200000000, - .freq_table = tegra_pll_x_freq_table, - .lock_delay = 300, - }, -}; - -static struct clk_pll_freq_table tegra_pll_e_freq_table[] = { - { 12000000, 100000000, 200, 24, 1, 0 }, - { 0, 0, 0, 0, 0, 0 }, -}; - -static struct clk tegra_pll_e = { - .name = "pll_e", - .flags = PLL_ALT_MISC_REG, - .ops = &tegra_plle_ops, - .parent = &tegra_clk_m, - .reg = 0xe8, - .max_rate = 100000000, - .u.pll = { - .input_min = 12000000, - .input_max = 12000000, - .freq_table = tegra_pll_e_freq_table, - }, -}; - -static struct clk tegra_clk_d = { - .name = "clk_d", - .flags = PERIPH_NO_RESET, - .ops = &tegra_clk_double_ops, - .reg = 0x34, - .reg_shift = 12, - .parent = &tegra_clk_m, - .max_rate = 52000000, - .u.periph = { - .clk_num = 90, - }, -}; - -/* dap_mclk1, belongs to the cdev1 pingroup. */ -static struct clk tegra_clk_cdev1 = { - .name = "cdev1", - .ops = &tegra_cdev_clk_ops, - .rate = 26000000, - .max_rate = 26000000, - .u.periph = { - .clk_num = 94, - }, -}; - -/* dap_mclk2, belongs to the cdev2 pingroup. */ -static struct clk tegra_clk_cdev2 = { - .name = "cdev2", - .ops = &tegra_cdev_clk_ops, - .rate = 26000000, - .max_rate = 26000000, - .u.periph = { - .clk_num = 93, - }, -}; - -/* initialized before peripheral clocks */ -static struct clk_mux_sel mux_audio_sync_clk[8+1]; -static const struct audio_sources { - const char *name; - int value; -} mux_audio_sync_clk_sources[] = { - { .name = "spdif_in", .value = 0 }, - { .name = "i2s1", .value = 1 }, - { .name = "i2s2", .value = 2 }, - { .name = "pll_a_out0", .value = 4 }, -#if 0 /* FIXME: not implemented */ - { .name = "ac97", .value = 3 }, - { .name = "ext_audio_clk2", .value = 5 }, - { .name = "ext_audio_clk1", .value = 6 }, - { .name = "ext_vimclk", .value = 7 }, -#endif - { NULL, 0 } -}; - -static struct clk tegra_clk_audio = { - .name = "audio", - .inputs = mux_audio_sync_clk, - .reg = 0x38, - .max_rate = 73728000, - .ops = &tegra_audio_sync_clk_ops -}; - -static struct clk tegra_clk_audio_2x = { - .name = "audio_2x", - .flags = PERIPH_NO_RESET, - .max_rate = 48000000, - .ops = &tegra_clk_double_ops, - .reg = 0x34, - .reg_shift = 8, - .parent = &tegra_clk_audio, - .u.periph = { - .clk_num = 89, - }, -}; - -static struct clk_lookup tegra_audio_clk_lookups[] = { - { .con_id = "audio", .clk = &tegra_clk_audio }, - { .con_id = "audio_2x", .clk = &tegra_clk_audio_2x } -}; - -/* This is called after peripheral clocks are initialized, as the - * audio_sync clock depends on some of the peripheral clocks. - */ - -static void init_audio_sync_clock_mux(void) -{ - int i; - struct clk_mux_sel *sel = mux_audio_sync_clk; - const struct audio_sources *src = mux_audio_sync_clk_sources; - struct clk_lookup *lookup; - - for (i = 0; src->name; i++, sel++, src++) { - sel->input = tegra_get_clock_by_name(src->name); - if (!sel->input) - pr_err("%s: could not find clk %s\n", __func__, - src->name); - sel->value = src->value; - } - - lookup = tegra_audio_clk_lookups; - for (i = 0; i < ARRAY_SIZE(tegra_audio_clk_lookups); i++, lookup++) { - clk_init(lookup->clk); - clkdev_add(lookup); - } -} - -static struct clk_mux_sel mux_cclk[] = { - { .input = &tegra_clk_m, .value = 0}, - { .input = &tegra_pll_c, .value = 1}, - { .input = &tegra_clk_32k, .value = 2}, - { .input = &tegra_pll_m, .value = 3}, - { .input = &tegra_pll_p, .value = 4}, - { .input = &tegra_pll_p_out4, .value = 5}, - { .input = &tegra_pll_p_out3, .value = 6}, - { .input = &tegra_clk_d, .value = 7}, - { .input = &tegra_pll_x, .value = 8}, - { NULL, 0}, -}; - -static struct clk_mux_sel mux_sclk[] = { - { .input = &tegra_clk_m, .value = 0}, - { .input = &tegra_pll_c_out1, .value = 1}, - { .input = &tegra_pll_p_out4, .value = 2}, - { .input = &tegra_pll_p_out3, .value = 3}, - { .input = &tegra_pll_p_out2, .value = 4}, - { .input = &tegra_clk_d, .value = 5}, - { .input = &tegra_clk_32k, .value = 6}, - { .input = &tegra_pll_m_out1, .value = 7}, - { NULL, 0}, -}; - -static struct clk tegra_clk_cclk = { - .name = "cclk", - .inputs = mux_cclk, - .reg = 0x20, - .ops = &tegra_super_ops, - .max_rate = 1000000000, -}; - -static struct clk tegra_clk_sclk = { - .name = "sclk", - .inputs = mux_sclk, - .reg = 0x28, - .ops = &tegra_super_ops, - .max_rate = 240000000, - .min_rate = 120000000, -}; - -static struct clk tegra_clk_virtual_cpu = { - .name = "cpu", - .parent = &tegra_clk_cclk, - .ops = &tegra_cpu_ops, - .max_rate = 1000000000, - .u.cpu = { - .main = &tegra_pll_x, - .backup = &tegra_pll_p, - }, -}; - -static struct clk tegra_clk_cop = { - .name = "cop", - .parent = &tegra_clk_sclk, - .ops = &tegra_cop_ops, - .max_rate = 240000000, -}; - -static struct clk tegra_clk_hclk = { - .name = "hclk", - .flags = DIV_BUS, - .parent = &tegra_clk_sclk, - .reg = 0x30, - .reg_shift = 4, - .ops = &tegra_bus_ops, - .max_rate = 240000000, -}; - -static struct clk tegra_clk_pclk = { - .name = "pclk", - .flags = DIV_BUS, - .parent = &tegra_clk_hclk, - .reg = 0x30, - .reg_shift = 0, - .ops = &tegra_bus_ops, - .max_rate = 120000000, -}; - -static struct clk tegra_clk_blink = { - .name = "blink", - .parent = &tegra_clk_32k, - .reg = 0x40, - .ops = &tegra_blink_clk_ops, - .max_rate = 32768, -}; - -static struct clk_mux_sel mux_pllm_pllc_pllp_plla[] = { - { .input = &tegra_pll_m, .value = 0}, - { .input = &tegra_pll_c, .value = 1}, - { .input = &tegra_pll_p, .value = 2}, - { .input = &tegra_pll_a_out0, .value = 3}, - { NULL, 0}, -}; - -static struct clk_mux_sel mux_pllm_pllc_pllp_clkm[] = { - { .input = &tegra_pll_m, .value = 0}, - { .input = &tegra_pll_c, .value = 1}, - { .input = &tegra_pll_p, .value = 2}, - { .input = &tegra_clk_m, .value = 3}, - { NULL, 0}, -}; - -static struct clk_mux_sel mux_pllp_pllc_pllm_clkm[] = { - { .input = &tegra_pll_p, .value = 0}, - { .input = &tegra_pll_c, .value = 1}, - { .input = &tegra_pll_m, .value = 2}, - { .input = &tegra_clk_m, .value = 3}, - { NULL, 0}, -}; - -static struct clk_mux_sel mux_pllaout0_audio2x_pllp_clkm[] = { - {.input = &tegra_pll_a_out0, .value = 0}, - {.input = &tegra_clk_audio_2x, .value = 1}, - {.input = &tegra_pll_p, .value = 2}, - {.input = &tegra_clk_m, .value = 3}, - { NULL, 0}, -}; - -static struct clk_mux_sel mux_pllp_plld_pllc_clkm[] = { - {.input = &tegra_pll_p, .value = 0}, - {.input = &tegra_pll_d_out0, .value = 1}, - {.input = &tegra_pll_c, .value = 2}, - {.input = &tegra_clk_m, .value = 3}, - { NULL, 0}, -}; - -static struct clk_mux_sel mux_pllp_pllc_audio_clkm_clk32[] = { - {.input = &tegra_pll_p, .value = 0}, - {.input = &tegra_pll_c, .value = 1}, - {.input = &tegra_clk_audio, .value = 2}, - {.input = &tegra_clk_m, .value = 3}, - {.input = &tegra_clk_32k, .value = 4}, - { NULL, 0}, -}; - -static struct clk_mux_sel mux_pllp_pllc_pllm[] = { - {.input = &tegra_pll_p, .value = 0}, - {.input = &tegra_pll_c, .value = 1}, - {.input = &tegra_pll_m, .value = 2}, - { NULL, 0}, -}; - -static struct clk_mux_sel mux_clk_m[] = { - { .input = &tegra_clk_m, .value = 0}, - { NULL, 0}, -}; - -static struct clk_mux_sel mux_pllp_out3[] = { - { .input = &tegra_pll_p_out3, .value = 0}, - { NULL, 0}, -}; - -static struct clk_mux_sel mux_plld[] = { - { .input = &tegra_pll_d, .value = 0}, - { NULL, 0}, -}; - -static struct clk_mux_sel mux_clk_32k[] = { - { .input = &tegra_clk_32k, .value = 0}, - { NULL, 0}, -}; - -static struct clk_mux_sel mux_pclk[] = { - { .input = &tegra_clk_pclk, .value = 0}, - { NULL, 0}, -}; - -static struct clk tegra_clk_emc = { - .name = "emc", - .ops = &tegra_emc_clk_ops, - .reg = 0x19c, - .max_rate = 800000000, - .inputs = mux_pllm_pllc_pllp_clkm, - .flags = MUX | DIV_U71 | PERIPH_EMC_ENB, - .u.periph = { - .clk_num = 57, - }, -}; - -#define PERIPH_CLK(_name, _dev, _con, _clk_num, _reg, _max, _inputs, _flags) \ - { \ - .name = _name, \ - .lookup = { \ - .dev_id = _dev, \ - .con_id = _con, \ - }, \ - .ops = &tegra_periph_clk_ops, \ - .reg = _reg, \ - .inputs = _inputs, \ - .flags = _flags, \ - .max_rate = _max, \ - .u.periph = { \ - .clk_num = _clk_num, \ - }, \ - } - -#define SHARED_CLK(_name, _dev, _con, _parent) \ - { \ - .name = _name, \ - .lookup = { \ - .dev_id = _dev, \ - .con_id = _con, \ - }, \ - .ops = &tegra_clk_shared_bus_ops, \ - .parent = _parent, \ - } - -static struct clk tegra_list_clks[] = { - PERIPH_CLK("apbdma", "tegra-apbdma", NULL, 34, 0, 108000000, mux_pclk, 0), - PERIPH_CLK("rtc", "rtc-tegra", NULL, 4, 0, 32768, mux_clk_32k, PERIPH_NO_RESET), - PERIPH_CLK("timer", "timer", NULL, 5, 0, 26000000, mux_clk_m, 0), - PERIPH_CLK("i2s1", "tegra20-i2s.0", NULL, 11, 0x100, 26000000, mux_pllaout0_audio2x_pllp_clkm, MUX | DIV_U71), - PERIPH_CLK("i2s2", "tegra20-i2s.1", NULL, 18, 0x104, 26000000, mux_pllaout0_audio2x_pllp_clkm, MUX | DIV_U71), - PERIPH_CLK("spdif_out", "spdif_out", NULL, 10, 0x108, 100000000, mux_pllaout0_audio2x_pllp_clkm, MUX | DIV_U71), - PERIPH_CLK("spdif_in", "spdif_in", NULL, 10, 0x10c, 100000000, mux_pllp_pllc_pllm, MUX | DIV_U71), - PERIPH_CLK("pwm", "tegra-pwm", NULL, 17, 0x110, 432000000, mux_pllp_pllc_audio_clkm_clk32, MUX | DIV_U71 | MUX_PWM), - PERIPH_CLK("spi", "spi", NULL, 43, 0x114, 40000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), - PERIPH_CLK("xio", "xio", NULL, 45, 0x120, 150000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), - PERIPH_CLK("twc", "twc", NULL, 16, 0x12c, 150000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), - PERIPH_CLK("sbc1", "spi_tegra.0", NULL, 41, 0x134, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), - PERIPH_CLK("sbc2", "spi_tegra.1", NULL, 44, 0x118, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), - PERIPH_CLK("sbc3", "spi_tegra.2", NULL, 46, 0x11c, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), - PERIPH_CLK("sbc4", "spi_tegra.3", NULL, 68, 0x1b4, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), - PERIPH_CLK("ide", "ide", NULL, 25, 0x144, 100000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* requires min voltage */ - PERIPH_CLK("ndflash", "tegra_nand", NULL, 13, 0x160, 164000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* scales with voltage */ - PERIPH_CLK("vfir", "vfir", NULL, 7, 0x168, 72000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), - PERIPH_CLK("sdmmc1", "sdhci-tegra.0", NULL, 14, 0x150, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* scales with voltage */ - PERIPH_CLK("sdmmc2", "sdhci-tegra.1", NULL, 9, 0x154, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* scales with voltage */ - PERIPH_CLK("sdmmc3", "sdhci-tegra.2", NULL, 69, 0x1bc, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* scales with voltage */ - PERIPH_CLK("sdmmc4", "sdhci-tegra.3", NULL, 15, 0x164, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* scales with voltage */ - PERIPH_CLK("vcp", "tegra-avp", "vcp", 29, 0, 250000000, mux_clk_m, 0), - PERIPH_CLK("bsea", "tegra-avp", "bsea", 62, 0, 250000000, mux_clk_m, 0), - PERIPH_CLK("bsev", "tegra-aes", "bsev", 63, 0, 250000000, mux_clk_m, 0), - PERIPH_CLK("vde", "tegra-avp", "vde", 61, 0x1c8, 250000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* scales with voltage and process_id */ - PERIPH_CLK("csite", "csite", NULL, 73, 0x1d4, 144000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* max rate ??? */ - /* FIXME: what is la? */ - PERIPH_CLK("la", "la", NULL, 76, 0x1f8, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), - PERIPH_CLK("owr", "tegra_w1", NULL, 71, 0x1cc, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), - PERIPH_CLK("nor", "nor", NULL, 42, 0x1d0, 92000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* requires min voltage */ - PERIPH_CLK("mipi", "mipi", NULL, 50, 0x174, 60000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* scales with voltage */ - PERIPH_CLK("i2c1", "tegra-i2c.0", NULL, 12, 0x124, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16), - PERIPH_CLK("i2c2", "tegra-i2c.1", NULL, 54, 0x198, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16), - PERIPH_CLK("i2c3", "tegra-i2c.2", NULL, 67, 0x1b8, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16), - PERIPH_CLK("dvc", "tegra-i2c.3", NULL, 47, 0x128, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16), - PERIPH_CLK("i2c1_i2c", "tegra-i2c.0", "i2c", 0, 0, 72000000, mux_pllp_out3, 0), - PERIPH_CLK("i2c2_i2c", "tegra-i2c.1", "i2c", 0, 0, 72000000, mux_pllp_out3, 0), - PERIPH_CLK("i2c3_i2c", "tegra-i2c.2", "i2c", 0, 0, 72000000, mux_pllp_out3, 0), - PERIPH_CLK("dvc_i2c", "tegra-i2c.3", "i2c", 0, 0, 72000000, mux_pllp_out3, 0), - PERIPH_CLK("uarta", "tegra-uart.0", NULL, 6, 0x178, 600000000, mux_pllp_pllc_pllm_clkm, MUX), - PERIPH_CLK("uartb", "tegra-uart.1", NULL, 7, 0x17c, 600000000, mux_pllp_pllc_pllm_clkm, MUX), - PERIPH_CLK("uartc", "tegra-uart.2", NULL, 55, 0x1a0, 600000000, mux_pllp_pllc_pllm_clkm, MUX), - PERIPH_CLK("uartd", "tegra-uart.3", NULL, 65, 0x1c0, 600000000, mux_pllp_pllc_pllm_clkm, MUX), - PERIPH_CLK("uarte", "tegra-uart.4", NULL, 66, 0x1c4, 600000000, mux_pllp_pllc_pllm_clkm, MUX), - PERIPH_CLK("3d", "3d", NULL, 24, 0x158, 300000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | PERIPH_MANUAL_RESET), /* scales with voltage and process_id */ - PERIPH_CLK("2d", "2d", NULL, 21, 0x15c, 300000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71), /* scales with voltage and process_id */ - PERIPH_CLK("vi", "tegra_camera", "vi", 20, 0x148, 150000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71), /* scales with voltage and process_id */ - PERIPH_CLK("vi_sensor", "tegra_camera", "vi_sensor", 20, 0x1a8, 150000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | PERIPH_NO_RESET), /* scales with voltage and process_id */ - PERIPH_CLK("epp", "epp", NULL, 19, 0x16c, 300000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71), /* scales with voltage and process_id */ - PERIPH_CLK("mpe", "mpe", NULL, 60, 0x170, 250000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71), /* scales with voltage and process_id */ - PERIPH_CLK("host1x", "host1x", NULL, 28, 0x180, 166000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71), /* scales with voltage and process_id */ - PERIPH_CLK("cve", "cve", NULL, 49, 0x140, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71), /* requires min voltage */ - PERIPH_CLK("tvo", "tvo", NULL, 49, 0x188, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71), /* requires min voltage */ - PERIPH_CLK("hdmi", "hdmi", NULL, 51, 0x18c, 600000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71), /* requires min voltage */ - PERIPH_CLK("tvdac", "tvdac", NULL, 53, 0x194, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71), /* requires min voltage */ - PERIPH_CLK("disp1", "tegradc.0", NULL, 27, 0x138, 600000000, mux_pllp_plld_pllc_clkm, MUX), /* scales with voltage and process_id */ - PERIPH_CLK("disp2", "tegradc.1", NULL, 26, 0x13c, 600000000, mux_pllp_plld_pllc_clkm, MUX), /* scales with voltage and process_id */ - PERIPH_CLK("usbd", "fsl-tegra-udc", NULL, 22, 0, 480000000, mux_clk_m, 0), /* requires min voltage */ - PERIPH_CLK("usb2", "tegra-ehci.1", NULL, 58, 0, 480000000, mux_clk_m, 0), /* requires min voltage */ - PERIPH_CLK("usb3", "tegra-ehci.2", NULL, 59, 0, 480000000, mux_clk_m, 0), /* requires min voltage */ - PERIPH_CLK("dsi", "dsi", NULL, 48, 0, 500000000, mux_plld, 0), /* scales with voltage */ - PERIPH_CLK("csi", "tegra_camera", "csi", 52, 0, 72000000, mux_pllp_out3, 0), - PERIPH_CLK("isp", "tegra_camera", "isp", 23, 0, 150000000, mux_clk_m, 0), /* same frequency as VI */ - PERIPH_CLK("csus", "tegra_camera", "csus", 92, 0, 150000000, mux_clk_m, PERIPH_NO_RESET), - PERIPH_CLK("pex", NULL, "pex", 70, 0, 26000000, mux_clk_m, PERIPH_MANUAL_RESET), - PERIPH_CLK("afi", NULL, "afi", 72, 0, 26000000, mux_clk_m, PERIPH_MANUAL_RESET), - PERIPH_CLK("pcie_xclk", NULL, "pcie_xclk", 74, 0, 26000000, mux_clk_m, PERIPH_MANUAL_RESET), - - SHARED_CLK("avp.sclk", "tegra-avp", "sclk", &tegra_clk_sclk), - SHARED_CLK("avp.emc", "tegra-avp", "emc", &tegra_clk_emc), - SHARED_CLK("cpu.emc", "cpu", "emc", &tegra_clk_emc), - SHARED_CLK("disp1.emc", "tegradc.0", "emc", &tegra_clk_emc), - SHARED_CLK("disp2.emc", "tegradc.1", "emc", &tegra_clk_emc), - SHARED_CLK("hdmi.emc", "hdmi", "emc", &tegra_clk_emc), - SHARED_CLK("host.emc", "tegra_grhost", "emc", &tegra_clk_emc), - SHARED_CLK("usbd.emc", "fsl-tegra-udc", "emc", &tegra_clk_emc), - SHARED_CLK("usb1.emc", "tegra-ehci.0", "emc", &tegra_clk_emc), - SHARED_CLK("usb2.emc", "tegra-ehci.1", "emc", &tegra_clk_emc), - SHARED_CLK("usb3.emc", "tegra-ehci.2", "emc", &tegra_clk_emc), -}; - -#define CLK_DUPLICATE(_name, _dev, _con) \ - { \ - .name = _name, \ - .lookup = { \ - .dev_id = _dev, \ - .con_id = _con, \ - }, \ - } - -/* Some clocks may be used by different drivers depending on the board - * configuration. List those here to register them twice in the clock lookup - * table under two names. - */ -static struct clk_duplicate tegra_clk_duplicates[] = { - CLK_DUPLICATE("uarta", "serial8250.0", NULL), - CLK_DUPLICATE("uartb", "serial8250.1", NULL), - CLK_DUPLICATE("uartc", "serial8250.2", NULL), - CLK_DUPLICATE("uartd", "serial8250.3", NULL), - CLK_DUPLICATE("uarte", "serial8250.4", NULL), - CLK_DUPLICATE("usbd", "utmip-pad", NULL), - CLK_DUPLICATE("usbd", "tegra-ehci.0", NULL), - CLK_DUPLICATE("usbd", "tegra-otg", NULL), - CLK_DUPLICATE("hdmi", "tegradc.0", "hdmi"), - CLK_DUPLICATE("hdmi", "tegradc.1", "hdmi"), - CLK_DUPLICATE("host1x", "tegra_grhost", "host1x"), - CLK_DUPLICATE("2d", "tegra_grhost", "gr2d"), - CLK_DUPLICATE("3d", "tegra_grhost", "gr3d"), - CLK_DUPLICATE("epp", "tegra_grhost", "epp"), - CLK_DUPLICATE("mpe", "tegra_grhost", "mpe"), - CLK_DUPLICATE("cop", "tegra-avp", "cop"), - CLK_DUPLICATE("vde", "tegra-aes", "vde"), -}; - -#define CLK(dev, con, ck) \ - { \ - .dev_id = dev, \ - .con_id = con, \ - .clk = ck, \ - } - -static struct clk *tegra_ptr_clks[] = { - &tegra_clk_32k, - &tegra_pll_s, - &tegra_clk_m, - &tegra_pll_m, - &tegra_pll_m_out1, - &tegra_pll_c, - &tegra_pll_c_out1, - &tegra_pll_p, - &tegra_pll_p_out1, - &tegra_pll_p_out2, - &tegra_pll_p_out3, - &tegra_pll_p_out4, - &tegra_pll_a, - &tegra_pll_a_out0, - &tegra_pll_d, - &tegra_pll_d_out0, - &tegra_pll_u, - &tegra_pll_x, - &tegra_pll_e, - &tegra_clk_cclk, - &tegra_clk_sclk, - &tegra_clk_hclk, - &tegra_clk_pclk, - &tegra_clk_d, - &tegra_clk_cdev1, - &tegra_clk_cdev2, - &tegra_clk_virtual_cpu, - &tegra_clk_blink, - &tegra_clk_cop, - &tegra_clk_emc, -}; - -static void tegra2_init_one_clock(struct clk *c) -{ - clk_init(c); - INIT_LIST_HEAD(&c->shared_bus_list); - if (!c->lookup.dev_id && !c->lookup.con_id) - c->lookup.con_id = c->name; - c->lookup.clk = c; - clkdev_add(&c->lookup); -} - -void __init tegra2_init_clocks(void) -{ - int i; - struct clk *c; - - for (i = 0; i < ARRAY_SIZE(tegra_ptr_clks); i++) - tegra2_init_one_clock(tegra_ptr_clks[i]); - - for (i = 0; i < ARRAY_SIZE(tegra_list_clks); i++) - tegra2_init_one_clock(&tegra_list_clks[i]); - - for (i = 0; i < ARRAY_SIZE(tegra_clk_duplicates); i++) { - c = tegra_get_clock_by_name(tegra_clk_duplicates[i].name); - if (!c) { - pr_err("%s: Unknown duplicate clock %s\n", __func__, - tegra_clk_duplicates[i].name); - continue; - } - - tegra_clk_duplicates[i].lookup.clk = c; - clkdev_add(&tegra_clk_duplicates[i].lookup); - } - - init_audio_sync_clock_mux(); -} - -#ifdef CONFIG_PM -static u32 clk_rst_suspend[RST_DEVICES_NUM + CLK_OUT_ENB_NUM + - PERIPH_CLK_SOURCE_NUM + 22]; - -void tegra_clk_suspend(void) -{ - unsigned long off, i; - u32 *ctx = clk_rst_suspend; - - *ctx++ = clk_readl(OSC_CTRL) & OSC_CTRL_MASK; - *ctx++ = clk_readl(tegra_pll_c.reg + PLL_BASE); - *ctx++ = clk_readl(tegra_pll_c.reg + PLL_MISC(&tegra_pll_c)); - *ctx++ = clk_readl(tegra_pll_a.reg + PLL_BASE); - *ctx++ = clk_readl(tegra_pll_a.reg + PLL_MISC(&tegra_pll_a)); - *ctx++ = clk_readl(tegra_pll_s.reg + PLL_BASE); - *ctx++ = clk_readl(tegra_pll_s.reg + PLL_MISC(&tegra_pll_s)); - *ctx++ = clk_readl(tegra_pll_d.reg + PLL_BASE); - *ctx++ = clk_readl(tegra_pll_d.reg + PLL_MISC(&tegra_pll_d)); - *ctx++ = clk_readl(tegra_pll_u.reg + PLL_BASE); - *ctx++ = clk_readl(tegra_pll_u.reg + PLL_MISC(&tegra_pll_u)); - - *ctx++ = clk_readl(tegra_pll_m_out1.reg); - *ctx++ = clk_readl(tegra_pll_a_out0.reg); - *ctx++ = clk_readl(tegra_pll_c_out1.reg); - - *ctx++ = clk_readl(tegra_clk_cclk.reg); - *ctx++ = clk_readl(tegra_clk_cclk.reg + SUPER_CLK_DIVIDER); - - *ctx++ = clk_readl(tegra_clk_sclk.reg); - *ctx++ = clk_readl(tegra_clk_sclk.reg + SUPER_CLK_DIVIDER); - *ctx++ = clk_readl(tegra_clk_pclk.reg); - - *ctx++ = clk_readl(tegra_clk_audio.reg); - - for (off = PERIPH_CLK_SOURCE_I2S1; off <= PERIPH_CLK_SOURCE_OSC; - off += 4) { - if (off == PERIPH_CLK_SOURCE_EMC) - continue; - *ctx++ = clk_readl(off); - } - - off = RST_DEVICES; - for (i = 0; i < RST_DEVICES_NUM; i++, off += 4) - *ctx++ = clk_readl(off); - - off = CLK_OUT_ENB; - for (i = 0; i < CLK_OUT_ENB_NUM; i++, off += 4) - *ctx++ = clk_readl(off); - - *ctx++ = clk_readl(MISC_CLK_ENB); - *ctx++ = clk_readl(CLK_MASK_ARM); - - BUG_ON(ctx - clk_rst_suspend != ARRAY_SIZE(clk_rst_suspend)); -} - -void tegra_clk_resume(void) -{ - unsigned long off, i; - const u32 *ctx = clk_rst_suspend; - u32 val; - - val = clk_readl(OSC_CTRL) & ~OSC_CTRL_MASK; - val |= *ctx++; - clk_writel(val, OSC_CTRL); - - clk_writel(*ctx++, tegra_pll_c.reg + PLL_BASE); - clk_writel(*ctx++, tegra_pll_c.reg + PLL_MISC(&tegra_pll_c)); - clk_writel(*ctx++, tegra_pll_a.reg + PLL_BASE); - clk_writel(*ctx++, tegra_pll_a.reg + PLL_MISC(&tegra_pll_a)); - clk_writel(*ctx++, tegra_pll_s.reg + PLL_BASE); - clk_writel(*ctx++, tegra_pll_s.reg + PLL_MISC(&tegra_pll_s)); - clk_writel(*ctx++, tegra_pll_d.reg + PLL_BASE); - clk_writel(*ctx++, tegra_pll_d.reg + PLL_MISC(&tegra_pll_d)); - clk_writel(*ctx++, tegra_pll_u.reg + PLL_BASE); - clk_writel(*ctx++, tegra_pll_u.reg + PLL_MISC(&tegra_pll_u)); - udelay(1000); - - clk_writel(*ctx++, tegra_pll_m_out1.reg); - clk_writel(*ctx++, tegra_pll_a_out0.reg); - clk_writel(*ctx++, tegra_pll_c_out1.reg); - - clk_writel(*ctx++, tegra_clk_cclk.reg); - clk_writel(*ctx++, tegra_clk_cclk.reg + SUPER_CLK_DIVIDER); - - clk_writel(*ctx++, tegra_clk_sclk.reg); - clk_writel(*ctx++, tegra_clk_sclk.reg + SUPER_CLK_DIVIDER); - clk_writel(*ctx++, tegra_clk_pclk.reg); - - clk_writel(*ctx++, tegra_clk_audio.reg); - - /* enable all clocks before configuring clock sources */ - clk_writel(0xbffffff9ul, CLK_OUT_ENB); - clk_writel(0xfefffff7ul, CLK_OUT_ENB + 4); - clk_writel(0x77f01bfful, CLK_OUT_ENB + 8); - wmb(); - - for (off = PERIPH_CLK_SOURCE_I2S1; off <= PERIPH_CLK_SOURCE_OSC; - off += 4) { - if (off == PERIPH_CLK_SOURCE_EMC) - continue; - clk_writel(*ctx++, off); - } - wmb(); - - off = RST_DEVICES; - for (i = 0; i < RST_DEVICES_NUM; i++, off += 4) - clk_writel(*ctx++, off); - wmb(); - - off = CLK_OUT_ENB; - for (i = 0; i < CLK_OUT_ENB_NUM; i++, off += 4) - clk_writel(*ctx++, off); - wmb(); - - clk_writel(*ctx++, MISC_CLK_ENB); - clk_writel(*ctx++, CLK_MASK_ARM); -} -#endif diff --git a/arch/arm/mach-tegra/tegra30_clocks.c b/arch/arm/mach-tegra/tegra30_clocks.c index 6674f100e16f..5cd502c27163 100644 --- a/arch/arm/mach-tegra/tegra30_clocks.c +++ b/arch/arm/mach-tegra/tegra30_clocks.c @@ -1,7 +1,7 @@ /* * arch/arm/mach-tegra/tegra30_clocks.c * - * Copyright (c) 2010-2011 NVIDIA CORPORATION. All rights reserved. + * Copyright (c) 2010-2012 NVIDIA CORPORATION. All rights reserved. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -35,6 +35,7 @@ #include "clock.h" #include "fuse.h" +#include "tegra_cpu_car.h" #define USE_PLL_LOCK_BITS 0 @@ -299,6 +300,16 @@ /* FIXME: recommended safety delay after lock is detected */ #define PLL_POST_LOCK_DELAY 100 +/* Tegra CPU clock and reset control regs */ +#define TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX 0x4c +#define TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET 0x340 +#define TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_CLR 0x344 +#define TEGRA30_CLK_RST_CONTROLLER_CLK_CPU_CMPLX_CLR 0x34c +#define TEGRA30_CLK_RST_CONTROLLER_CPU_CMPLX_STATUS 0x470 + +#define CPU_CLOCK(cpu) (0x1 << (8 + cpu)) +#define CPU_RESET(cpu) (0x1111ul << (cpu)) + /** * Structure defining the fields for USB UTMI clocks Parameters. */ @@ -365,30 +376,32 @@ static void __iomem *misc_gp_hidrev_base = IO_ADDRESS(TEGRA_APB_MISC_BASE); static int tegra_periph_clk_enable_refcount[CLK_OUT_ENB_NUM * 32]; #define clk_writel(value, reg) \ - __raw_writel(value, (u32)reg_clk_base + (reg)) + __raw_writel(value, reg_clk_base + (reg)) #define clk_readl(reg) \ - __raw_readl((u32)reg_clk_base + (reg)) + __raw_readl(reg_clk_base + (reg)) #define pmc_writel(value, reg) \ - __raw_writel(value, (u32)reg_pmc_base + (reg)) + __raw_writel(value, reg_pmc_base + (reg)) #define pmc_readl(reg) \ - __raw_readl((u32)reg_pmc_base + (reg)) + __raw_readl(reg_pmc_base + (reg)) #define chipid_readl() \ - __raw_readl((u32)misc_gp_hidrev_base + MISC_GP_HIDREV) + __raw_readl(misc_gp_hidrev_base + MISC_GP_HIDREV) #define clk_writel_delay(value, reg) \ do { \ - __raw_writel((value), (u32)reg_clk_base + (reg)); \ + __raw_writel((value), reg_clk_base + (reg)); \ udelay(2); \ } while (0) - -static inline int clk_set_div(struct clk *c, u32 n) +static inline int clk_set_div(struct clk_tegra *c, u32 n) { - return clk_set_rate(c, (clk_get_rate(c->parent) + n-1) / n); + struct clk *clk = c->hw.clk; + + return clk_set_rate(clk, + (__clk_get_rate(__clk_get_parent(clk)) + n - 1) / n); } static inline u32 periph_clk_to_reg( - struct clk *c, u32 reg_L, u32 reg_V, int offs) + struct clk_tegra *c, u32 reg_L, u32 reg_V, int offs) { u32 reg = c->u.periph.clk_num / 32; BUG_ON(reg >= RST_DEVICES_NUM); @@ -470,15 +483,32 @@ static int clk_div16_get_divider(unsigned long parent_rate, unsigned long rate) return divider_u16 - 1; } +static unsigned long tegra30_clk_fixed_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + return to_clk_tegra(hw)->fixed_rate; +} + +struct clk_ops tegra30_clk_32k_ops = { + .recalc_rate = tegra30_clk_fixed_recalc_rate, +}; + /* clk_m functions */ -static unsigned long tegra30_clk_m_autodetect_rate(struct clk *c) +static unsigned long tegra30_clk_m_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + if (!to_clk_tegra(hw)->fixed_rate) + to_clk_tegra(hw)->fixed_rate = clk_measure_input_freq(); + return to_clk_tegra(hw)->fixed_rate; +} + +static void tegra30_clk_m_init(struct clk_hw *hw) { u32 osc_ctrl = clk_readl(OSC_CTRL); u32 auto_clock_control = osc_ctrl & ~OSC_CTRL_OSC_FREQ_MASK; u32 pll_ref_div = osc_ctrl & OSC_CTRL_PLL_REF_DIV_MASK; - c->rate = clk_measure_input_freq(); - switch (c->rate) { + switch (to_clk_tegra(hw)->fixed_rate) { case 12000000: auto_clock_control |= OSC_CTRL_OSC_FREQ_12MHZ; BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1); @@ -508,46 +538,44 @@ static unsigned long tegra30_clk_m_autodetect_rate(struct clk *c) BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_4); break; default: - pr_err("%s: Unexpected clock rate %ld", __func__, c->rate); + pr_err("%s: Unexpected clock rate %ld", __func__, + to_clk_tegra(hw)->fixed_rate); BUG(); } clk_writel(auto_clock_control, OSC_CTRL); - return c->rate; } -static void tegra30_clk_m_init(struct clk *c) -{ - pr_debug("%s on clock %s\n", __func__, c->name); - tegra30_clk_m_autodetect_rate(c); -} +struct clk_ops tegra30_clk_m_ops = { + .init = tegra30_clk_m_init, + .recalc_rate = tegra30_clk_m_recalc_rate, +}; -static int tegra30_clk_m_enable(struct clk *c) +static unsigned long tegra30_clk_m_div_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) { - pr_debug("%s on clock %s\n", __func__, c->name); - return 0; -} + struct clk_tegra *c = to_clk_tegra(hw); + u64 rate = parent_rate; -static void tegra30_clk_m_disable(struct clk *c) -{ - pr_debug("%s on clock %s\n", __func__, c->name); - WARN(1, "Attempting to disable main SoC clock\n"); -} + if (c->mul != 0 && c->div != 0) { + rate *= c->mul; + rate += c->div - 1; /* round up */ + do_div(rate, c->div); + } -static struct clk_ops tegra_clk_m_ops = { - .init = tegra30_clk_m_init, - .enable = tegra30_clk_m_enable, - .disable = tegra30_clk_m_disable, -}; + return rate; +} -static struct clk_ops tegra_clk_m_div_ops = { - .enable = tegra30_clk_m_enable, +struct clk_ops tegra_clk_m_div_ops = { + .recalc_rate = tegra30_clk_m_div_recalc_rate, }; /* PLL reference divider functions */ -static void tegra30_pll_ref_init(struct clk *c) +static unsigned long tegra30_pll_ref_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) { + struct clk_tegra *c = to_clk_tegra(hw); + unsigned long rate = parent_rate; u32 pll_ref_div = clk_readl(OSC_CTRL) & OSC_CTRL_PLL_REF_DIV_MASK; - pr_debug("%s on clock %s\n", __func__, c->name); switch (pll_ref_div) { case OSC_CTRL_PLL_REF_DIV_1: @@ -564,13 +592,18 @@ static void tegra30_pll_ref_init(struct clk *c) BUG(); } c->mul = 1; - c->state = ON; + + if (c->mul != 0 && c->div != 0) { + rate *= c->mul; + rate += c->div - 1; /* round up */ + do_div(rate, c->div); + } + + return rate; } -static struct clk_ops tegra_pll_ref_ops = { - .init = tegra30_pll_ref_init, - .enable = tegra30_clk_m_enable, - .disable = tegra30_clk_m_disable, +struct clk_ops tegra_pll_ref_ops = { + .recalc_rate = tegra30_pll_ref_recalc_rate, }; /* super clock functions */ @@ -581,56 +614,50 @@ static struct clk_ops tegra_pll_ref_ops = { * only when its parent is a fixed rate PLL, since we can't change PLL rate * in this case. */ -static void tegra30_super_clk_init(struct clk *c) +static void tegra30_super_clk_init(struct clk_hw *hw) { - u32 val; - int source; - int shift; - const struct clk_mux_sel *sel; - val = clk_readl(c->reg + SUPER_CLK_MUX); - c->state = ON; - BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) && - ((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE)); - shift = ((val & SUPER_STATE_MASK) == SUPER_STATE_IDLE) ? - SUPER_IDLE_SOURCE_SHIFT : SUPER_RUN_SOURCE_SHIFT; - source = (val >> shift) & SUPER_SOURCE_MASK; - if (c->flags & DIV_2) - source |= val & SUPER_LP_DIV2_BYPASS; - for (sel = c->inputs; sel->input != NULL; sel++) { - if (sel->value == source) - break; - } - BUG_ON(sel->input == NULL); - c->parent = sel->input; + struct clk_tegra *c = to_clk_tegra(hw); + struct clk_tegra *p = + to_clk_tegra(__clk_get_hw(__clk_get_parent(hw->clk))); + c->state = ON; if (c->flags & DIV_U71) { /* Init safe 7.1 divider value (does not affect PLLX path) */ clk_writel(SUPER_CLOCK_DIV_U71_MIN << SUPER_CLOCK_DIV_U71_SHIFT, c->reg + SUPER_CLK_DIVIDER); c->mul = 2; c->div = 2; - if (!(c->parent->flags & PLLX)) + if (!(p->flags & PLLX)) c->div += SUPER_CLOCK_DIV_U71_MIN; } else clk_writel(0, c->reg + SUPER_CLK_DIVIDER); } -static int tegra30_super_clk_enable(struct clk *c) +static u8 tegra30_super_clk_get_parent(struct clk_hw *hw) { - return 0; -} + struct clk_tegra *c = to_clk_tegra(hw); + u32 val; + int source; + int shift; -static void tegra30_super_clk_disable(struct clk *c) -{ - /* since tegra 3 has 2 CPU super clocks - low power lp-mode clock and - geared up g-mode super clock - mode switch may request to disable - either of them; accept request with no affect on h/w */ + val = clk_readl(c->reg + SUPER_CLK_MUX); + BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) && + ((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE)); + shift = ((val & SUPER_STATE_MASK) == SUPER_STATE_IDLE) ? + SUPER_IDLE_SOURCE_SHIFT : SUPER_RUN_SOURCE_SHIFT; + source = (val >> shift) & SUPER_SOURCE_MASK; + if (c->flags & DIV_2) + source |= val & SUPER_LP_DIV2_BYPASS; + + return source; } -static int tegra30_super_clk_set_parent(struct clk *c, struct clk *p) +static int tegra30_super_clk_set_parent(struct clk_hw *hw, u8 index) { + struct clk_tegra *c = to_clk_tegra(hw); + struct clk_tegra *p = + to_clk_tegra(__clk_get_hw(clk_get_parent(hw->clk))); u32 val; - const struct clk_mux_sel *sel; int shift; val = clk_readl(c->reg + SUPER_CLK_MUX); @@ -638,48 +665,36 @@ static int tegra30_super_clk_set_parent(struct clk *c, struct clk *p) ((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE)); shift = ((val & SUPER_STATE_MASK) == SUPER_STATE_IDLE) ? SUPER_IDLE_SOURCE_SHIFT : SUPER_RUN_SOURCE_SHIFT; - for (sel = c->inputs; sel->input != NULL; sel++) { - if (sel->input == p) { - /* For LP mode super-clock switch between PLLX direct - and divided-by-2 outputs is allowed only when other - than PLLX clock source is current parent */ - if ((c->flags & DIV_2) && (p->flags & PLLX) && - ((sel->value ^ val) & SUPER_LP_DIV2_BYPASS)) { - if (c->parent->flags & PLLX) - return -EINVAL; - val ^= SUPER_LP_DIV2_BYPASS; - clk_writel_delay(val, c->reg); - } - val &= ~(SUPER_SOURCE_MASK << shift); - val |= (sel->value & SUPER_SOURCE_MASK) << shift; - - /* 7.1 divider for CPU super-clock does not affect - PLLX path */ - if (c->flags & DIV_U71) { - u32 div = 0; - if (!(p->flags & PLLX)) { - div = clk_readl(c->reg + - SUPER_CLK_DIVIDER); - div &= SUPER_CLOCK_DIV_U71_MASK; - div >>= SUPER_CLOCK_DIV_U71_SHIFT; - } - c->div = div + 2; - c->mul = 2; - } - - if (c->refcnt) - clk_enable(p); - - clk_writel_delay(val, c->reg); - if (c->refcnt && c->parent) - clk_disable(c->parent); + /* For LP mode super-clock switch between PLLX direct + and divided-by-2 outputs is allowed only when other + than PLLX clock source is current parent */ + if ((c->flags & DIV_2) && (p->flags & PLLX) && + ((index ^ val) & SUPER_LP_DIV2_BYPASS)) { + if (p->flags & PLLX) + return -EINVAL; + val ^= SUPER_LP_DIV2_BYPASS; + clk_writel_delay(val, c->reg); + } + val &= ~(SUPER_SOURCE_MASK << shift); + val |= (index & SUPER_SOURCE_MASK) << shift; - clk_reparent(c, p); - return 0; + /* 7.1 divider for CPU super-clock does not affect + PLLX path */ + if (c->flags & DIV_U71) { + u32 div = 0; + if (!(p->flags & PLLX)) { + div = clk_readl(c->reg + + SUPER_CLK_DIVIDER); + div &= SUPER_CLOCK_DIV_U71_MASK; + div >>= SUPER_CLOCK_DIV_U71_SHIFT; } + c->div = div + 2; + c->mul = 2; } - return -EINVAL; + clk_writel_delay(val, c->reg); + + return 0; } /* @@ -691,10 +706,15 @@ static int tegra30_super_clk_set_parent(struct clk *c, struct clk *p) * rate of this PLL can't be changed, and it has many other children. In * this case use 7.1 fractional divider to adjust the super clock rate. */ -static int tegra30_super_clk_set_rate(struct clk *c, unsigned long rate) +static int tegra30_super_clk_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) { - if ((c->flags & DIV_U71) && (c->parent->flags & PLL_FIXED)) { - int div = clk_div71_get_divider(c->parent->u.pll.fixed_rate, + struct clk_tegra *c = to_clk_tegra(hw); + struct clk *parent = __clk_get_parent(hw->clk); + struct clk_tegra *cparent = to_clk_tegra(__clk_get_hw(parent)); + + if ((c->flags & DIV_U71) && (cparent->flags & PLL_FIXED)) { + int div = clk_div71_get_divider(parent_rate, rate, c->flags, ROUND_DIVIDER_DOWN); div = max(div, SUPER_CLOCK_DIV_U71_MIN); @@ -704,55 +724,86 @@ static int tegra30_super_clk_set_rate(struct clk *c, unsigned long rate) c->mul = 2; return 0; } - return clk_set_rate(c->parent, rate); + return 0; +} + +static unsigned long tegra30_super_clk_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u64 rate = parent_rate; + + if (c->mul != 0 && c->div != 0) { + rate *= c->mul; + rate += c->div - 1; /* round up */ + do_div(rate, c->div); + } + + return rate; } -static struct clk_ops tegra_super_ops = { - .init = tegra30_super_clk_init, - .enable = tegra30_super_clk_enable, - .disable = tegra30_super_clk_disable, - .set_parent = tegra30_super_clk_set_parent, - .set_rate = tegra30_super_clk_set_rate, +static long tegra30_super_clk_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + struct clk *parent = __clk_get_parent(hw->clk); + struct clk_tegra *cparent = to_clk_tegra(__clk_get_hw(parent)); + int mul = 2; + int div; + + if ((c->flags & DIV_U71) && (cparent->flags & PLL_FIXED)) { + div = clk_div71_get_divider(*prate, + rate, c->flags, ROUND_DIVIDER_DOWN); + div = max(div, SUPER_CLOCK_DIV_U71_MIN) + 2; + rate = *prate * mul; + rate += div - 1; /* round up */ + do_div(rate, c->div); + + return rate; + } + return *prate; +} + +struct clk_ops tegra30_super_ops = { + .init = tegra30_super_clk_init, + .set_parent = tegra30_super_clk_set_parent, + .get_parent = tegra30_super_clk_get_parent, + .recalc_rate = tegra30_super_clk_recalc_rate, + .round_rate = tegra30_super_clk_round_rate, + .set_rate = tegra30_super_clk_set_rate, }; -static int tegra30_twd_clk_set_rate(struct clk *c, unsigned long rate) +static unsigned long tegra30_twd_clk_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) { - /* The input value 'rate' is the clock rate of the CPU complex. */ - c->rate = (rate * c->mul) / c->div; - return 0; + struct clk_tegra *c = to_clk_tegra(hw); + u64 rate = parent_rate; + + if (c->mul != 0 && c->div != 0) { + rate *= c->mul; + rate += c->div - 1; /* round up */ + do_div(rate, c->div); + } + + return rate; } -static struct clk_ops tegra30_twd_ops = { - .set_rate = tegra30_twd_clk_set_rate, +struct clk_ops tegra30_twd_ops = { + .recalc_rate = tegra30_twd_clk_recalc_rate, }; /* Blink output functions */ - -static void tegra30_blink_clk_init(struct clk *c) +static int tegra30_blink_clk_is_enabled(struct clk_hw *hw) { + struct clk_tegra *c = to_clk_tegra(hw); u32 val; val = pmc_readl(PMC_CTRL); c->state = (val & PMC_CTRL_BLINK_ENB) ? ON : OFF; - c->mul = 1; - val = pmc_readl(c->reg); - - if (val & PMC_BLINK_TIMER_ENB) { - unsigned int on_off; - - on_off = (val >> PMC_BLINK_TIMER_DATA_ON_SHIFT) & - PMC_BLINK_TIMER_DATA_ON_MASK; - val >>= PMC_BLINK_TIMER_DATA_OFF_SHIFT; - val &= PMC_BLINK_TIMER_DATA_OFF_MASK; - on_off += val; - /* each tick in the blink timer is 4 32KHz clocks */ - c->div = on_off * 4; - } else { - c->div = 1; - } + return c->state; } -static int tegra30_blink_clk_enable(struct clk *c) +static int tegra30_blink_clk_enable(struct clk_hw *hw) { u32 val; @@ -765,7 +816,7 @@ static int tegra30_blink_clk_enable(struct clk *c) return 0; } -static void tegra30_blink_clk_disable(struct clk *c) +static void tegra30_blink_clk_disable(struct clk_hw *hw) { u32 val; @@ -776,9 +827,11 @@ static void tegra30_blink_clk_disable(struct clk *c) pmc_writel(val & ~PMC_DPD_PADS_ORIDE_BLINK_ENB, PMC_DPD_PADS_ORIDE); } -static int tegra30_blink_clk_set_rate(struct clk *c, unsigned long rate) +static int tegra30_blink_clk_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) { - unsigned long parent_rate = clk_get_rate(c->parent); + struct clk_tegra *c = to_clk_tegra(hw); + if (rate >= parent_rate) { c->div = 1; pmc_writel(0, c->reg); @@ -801,41 +854,77 @@ static int tegra30_blink_clk_set_rate(struct clk *c, unsigned long rate) return 0; } -static struct clk_ops tegra_blink_clk_ops = { - .init = &tegra30_blink_clk_init, - .enable = &tegra30_blink_clk_enable, - .disable = &tegra30_blink_clk_disable, - .set_rate = &tegra30_blink_clk_set_rate, -}; +static unsigned long tegra30_blink_clk_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u64 rate = parent_rate; + u32 val; + u32 mul; + u32 div; + u32 on_off; -/* PLL Functions */ -static int tegra30_pll_clk_wait_for_lock(struct clk *c, u32 lock_reg, - u32 lock_bit) + mul = 1; + val = pmc_readl(c->reg); + + if (val & PMC_BLINK_TIMER_ENB) { + on_off = (val >> PMC_BLINK_TIMER_DATA_ON_SHIFT) & + PMC_BLINK_TIMER_DATA_ON_MASK; + val >>= PMC_BLINK_TIMER_DATA_OFF_SHIFT; + val &= PMC_BLINK_TIMER_DATA_OFF_MASK; + on_off += val; + /* each tick in the blink timer is 4 32KHz clocks */ + div = on_off * 4; + } else { + div = 1; + } + + if (mul != 0 && div != 0) { + rate *= mul; + rate += div - 1; /* round up */ + do_div(rate, div); + } + return rate; +} + +static long tegra30_blink_clk_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) { -#if USE_PLL_LOCK_BITS - int i; - for (i = 0; i < c->u.pll.lock_delay; i++) { - if (clk_readl(lock_reg) & lock_bit) { - udelay(PLL_POST_LOCK_DELAY); - return 0; - } - udelay(2); /* timeout = 2 * lock time */ + int div; + int mul; + long round_rate = *prate; + + mul = 1; + + if (rate >= *prate) { + div = 1; + } else { + div = DIV_ROUND_UP(*prate / 8, rate); + div *= 8; } - pr_err("Timed out waiting for lock bit on pll %s", c->name); - return -1; -#endif - udelay(c->u.pll.lock_delay); - return 0; + round_rate *= mul; + round_rate += div - 1; + do_div(round_rate, div); + + return round_rate; } +struct clk_ops tegra30_blink_clk_ops = { + .is_enabled = tegra30_blink_clk_is_enabled, + .enable = tegra30_blink_clk_enable, + .disable = tegra30_blink_clk_disable, + .recalc_rate = tegra30_blink_clk_recalc_rate, + .round_rate = tegra30_blink_clk_round_rate, + .set_rate = tegra30_blink_clk_set_rate, +}; -static void tegra30_utmi_param_configure(struct clk *c) +static void tegra30_utmi_param_configure(struct clk_hw *hw) { + unsigned long main_rate = + __clk_get_rate(__clk_get_parent(__clk_get_parent(hw->clk))); u32 reg; int i; - unsigned long main_rate = - clk_get_rate(c->parent->parent); for (i = 0; i < ARRAY_SIZE(utmi_parameters); i++) { if (main_rate == utmi_parameters[i].osc_frequency) @@ -886,50 +975,52 @@ static void tegra30_utmi_param_configure(struct clk *c) clk_writel(reg, UTMIP_PLL_CFG1); } -static void tegra30_pll_clk_init(struct clk *c) +/* PLL Functions */ +static int tegra30_pll_clk_wait_for_lock(struct clk_tegra *c, u32 lock_reg, + u32 lock_bit) +{ + int ret = 0; + +#if USE_PLL_LOCK_BITS + int i; + for (i = 0; i < c->u.pll.lock_delay; i++) { + if (clk_readl(lock_reg) & lock_bit) { + udelay(PLL_POST_LOCK_DELAY); + return 0; + } + udelay(2); /* timeout = 2 * lock time */ + } + pr_err("Timed out waiting for lock bit on pll %s", + __clk_get_name(hw->clk)); + ret = -1; +#else + udelay(c->u.pll.lock_delay); +#endif + return ret; +} + +static int tegra30_pll_clk_is_enabled(struct clk_hw *hw) { + struct clk_tegra *c = to_clk_tegra(hw); u32 val = clk_readl(c->reg + PLL_BASE); c->state = (val & PLL_BASE_ENABLE) ? ON : OFF; + return c->state; +} - if (c->flags & PLL_FIXED && !(val & PLL_BASE_OVERRIDE)) { - const struct clk_pll_freq_table *sel; - unsigned long input_rate = clk_get_rate(c->parent); - for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) { - if (sel->input_rate == input_rate && - sel->output_rate == c->u.pll.fixed_rate) { - c->mul = sel->n; - c->div = sel->m * sel->p; - return; - } - } - pr_err("Clock %s has unknown fixed frequency\n", c->name); - BUG(); - } else if (val & PLL_BASE_BYPASS) { - c->mul = 1; - c->div = 1; - } else { - c->mul = (val & PLL_BASE_DIVN_MASK) >> PLL_BASE_DIVN_SHIFT; - c->div = (val & PLL_BASE_DIVM_MASK) >> PLL_BASE_DIVM_SHIFT; - if (c->flags & PLLU) - c->div *= (val & PLLU_BASE_POST_DIV) ? 1 : 2; - else - c->div *= (0x1 << ((val & PLL_BASE_DIVP_MASK) >> - PLL_BASE_DIVP_SHIFT)); - if (c->flags & PLL_FIXED) { - unsigned long rate = clk_get_rate_locked(c); - BUG_ON(rate != c->u.pll.fixed_rate); - } - } +static void tegra30_pll_clk_init(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); if (c->flags & PLLU) - tegra30_utmi_param_configure(c); + tegra30_utmi_param_configure(hw); } -static int tegra30_pll_clk_enable(struct clk *c) +static int tegra30_pll_clk_enable(struct clk_hw *hw) { + struct clk_tegra *c = to_clk_tegra(hw); u32 val; - pr_debug("%s on clock %s\n", __func__, c->name); + pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk)); #if USE_PLL_LOCK_BITS val = clk_readl(c->reg + PLL_MISC(c)); @@ -952,10 +1043,11 @@ static int tegra30_pll_clk_enable(struct clk *c) return 0; } -static void tegra30_pll_clk_disable(struct clk *c) +static void tegra30_pll_clk_disable(struct clk_hw *hw) { + struct clk_tegra *c = to_clk_tegra(hw); u32 val; - pr_debug("%s on clock %s\n", __func__, c->name); + pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk)); val = clk_readl(c->reg); val &= ~(PLL_BASE_BYPASS | PLL_BASE_ENABLE); @@ -968,36 +1060,36 @@ static void tegra30_pll_clk_disable(struct clk *c) } } -static int tegra30_pll_clk_set_rate(struct clk *c, unsigned long rate) +static int tegra30_pll_clk_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) { + struct clk_tegra *c = to_clk_tegra(hw); u32 val, p_div, old_base; unsigned long input_rate; const struct clk_pll_freq_table *sel; struct clk_pll_freq_table cfg; - pr_debug("%s: %s %lu\n", __func__, c->name, rate); - if (c->flags & PLL_FIXED) { int ret = 0; if (rate != c->u.pll.fixed_rate) { pr_err("%s: Can not change %s fixed rate %lu to %lu\n", - __func__, c->name, c->u.pll.fixed_rate, rate); + __func__, __clk_get_name(hw->clk), + c->u.pll.fixed_rate, rate); ret = -EINVAL; } return ret; } if (c->flags & PLLM) { - if (rate != clk_get_rate_locked(c)) { + if (rate != __clk_get_rate(hw->clk)) { pr_err("%s: Can not change memory %s rate in flight\n", - __func__, c->name); + __func__, __clk_get_name(hw->clk)); return -EINVAL; } - return 0; } p_div = 0; - input_rate = clk_get_rate(c->parent); + input_rate = parent_rate; /* Check if the target rate is tabulated */ for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) { @@ -1055,7 +1147,7 @@ static int tegra30_pll_clk_set_rate(struct clk *c, unsigned long rate) (p_div > (PLL_BASE_DIVP_MASK >> PLL_BASE_DIVP_SHIFT)) || (cfg.output_rate > c->u.pll.vco_max)) { pr_err("%s: Failed to set %s out-of-table rate %lu\n", - __func__, c->name, rate); + __func__, __clk_get_name(hw->clk), rate); return -EINVAL; } p_div <<= PLL_BASE_DIVP_SHIFT; @@ -1073,7 +1165,7 @@ static int tegra30_pll_clk_set_rate(struct clk *c, unsigned long rate) return 0; if (c->state == ON) { - tegra30_pll_clk_disable(c); + tegra30_pll_clk_disable(hw); val &= ~(PLL_BASE_BYPASS | PLL_BASE_ENABLE); } clk_writel(val, c->reg + PLL_BASE); @@ -1095,21 +1187,149 @@ static int tegra30_pll_clk_set_rate(struct clk *c, unsigned long rate) } if (c->state == ON) - tegra30_pll_clk_enable(c); + tegra30_pll_clk_enable(hw); + + c->u.pll.fixed_rate = rate; return 0; } -static struct clk_ops tegra_pll_ops = { - .init = tegra30_pll_clk_init, - .enable = tegra30_pll_clk_enable, - .disable = tegra30_pll_clk_disable, - .set_rate = tegra30_pll_clk_set_rate, +static long tegra30_pll_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + unsigned long input_rate = *prate; + unsigned long output_rate = *prate; + const struct clk_pll_freq_table *sel; + struct clk_pll_freq_table cfg; + int mul; + int div; + u32 p_div; + u32 val; + + if (c->flags & PLL_FIXED) + return c->u.pll.fixed_rate; + + if (c->flags & PLLM) + return __clk_get_rate(hw->clk); + + p_div = 0; + /* Check if the target rate is tabulated */ + for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) { + if (sel->input_rate == input_rate && sel->output_rate == rate) { + if (c->flags & PLLU) { + BUG_ON(sel->p < 1 || sel->p > 2); + if (sel->p == 1) + p_div = PLLU_BASE_POST_DIV; + } else { + BUG_ON(sel->p < 1); + for (val = sel->p; val > 1; val >>= 1) + p_div++; + p_div <<= PLL_BASE_DIVP_SHIFT; + } + break; + } + } + + if (sel->input_rate == 0) { + unsigned long cfreq; + BUG_ON(c->flags & PLLU); + sel = &cfg; + + switch (input_rate) { + case 12000000: + case 26000000: + cfreq = (rate <= 1000000 * 1000) ? 1000000 : 2000000; + break; + case 13000000: + cfreq = (rate <= 1000000 * 1000) ? 1000000 : 2600000; + break; + case 16800000: + case 19200000: + cfreq = (rate <= 1200000 * 1000) ? 1200000 : 2400000; + break; + default: + pr_err("%s: Unexpected reference rate %lu\n", + __func__, input_rate); + BUG(); + } + + /* Raise VCO to guarantee 0.5% accuracy */ + for (cfg.output_rate = rate; cfg.output_rate < 200 * cfreq; + cfg.output_rate <<= 1) + p_div++; + + cfg.p = 0x1 << p_div; + cfg.m = input_rate / cfreq; + cfg.n = cfg.output_rate / cfreq; + } + + mul = sel->n; + div = sel->m * sel->p; + + output_rate *= mul; + output_rate += div - 1; /* round up */ + do_div(output_rate, div); + + return output_rate; +} + +static unsigned long tegra30_pll_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u64 rate = parent_rate; + u32 val = clk_readl(c->reg + PLL_BASE); + + if (c->flags & PLL_FIXED && !(val & PLL_BASE_OVERRIDE)) { + const struct clk_pll_freq_table *sel; + for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) { + if (sel->input_rate == parent_rate && + sel->output_rate == c->u.pll.fixed_rate) { + c->mul = sel->n; + c->div = sel->m * sel->p; + break; + } + } + pr_err("Clock %s has unknown fixed frequency\n", + __clk_get_name(hw->clk)); + BUG(); + } else if (val & PLL_BASE_BYPASS) { + c->mul = 1; + c->div = 1; + } else { + c->mul = (val & PLL_BASE_DIVN_MASK) >> PLL_BASE_DIVN_SHIFT; + c->div = (val & PLL_BASE_DIVM_MASK) >> PLL_BASE_DIVM_SHIFT; + if (c->flags & PLLU) + c->div *= (val & PLLU_BASE_POST_DIV) ? 1 : 2; + else + c->div *= (0x1 << ((val & PLL_BASE_DIVP_MASK) >> + PLL_BASE_DIVP_SHIFT)); + } + + if (c->mul != 0 && c->div != 0) { + rate *= c->mul; + rate += c->div - 1; /* round up */ + do_div(rate, c->div); + } + + return rate; +} + +struct clk_ops tegra30_pll_ops = { + .is_enabled = tegra30_pll_clk_is_enabled, + .init = tegra30_pll_clk_init, + .enable = tegra30_pll_clk_enable, + .disable = tegra30_pll_clk_disable, + .recalc_rate = tegra30_pll_recalc_rate, + .round_rate = tegra30_pll_round_rate, + .set_rate = tegra30_pll_clk_set_rate, }; -static int -tegra30_plld_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting) +int tegra30_plld_clk_cfg_ex(struct clk_hw *hw, + enum tegra_clk_ex_param p, u32 setting) { + struct clk_tegra *c = to_clk_tegra(hw); u32 val, mask, reg; switch (p) { @@ -1141,41 +1361,27 @@ tegra30_plld_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting) return 0; } -static struct clk_ops tegra_plld_ops = { - .init = tegra30_pll_clk_init, - .enable = tegra30_pll_clk_enable, - .disable = tegra30_pll_clk_disable, - .set_rate = tegra30_pll_clk_set_rate, - .clk_cfg_ex = tegra30_plld_clk_cfg_ex, -}; - -static void tegra30_plle_clk_init(struct clk *c) +static int tegra30_plle_clk_is_enabled(struct clk_hw *hw) { + struct clk_tegra *c = to_clk_tegra(hw); u32 val; - val = clk_readl(PLLE_AUX); - c->parent = (val & PLLE_AUX_PLLP_SEL) ? - tegra_get_clock_by_name("pll_p") : - tegra_get_clock_by_name("pll_ref"); - val = clk_readl(c->reg + PLL_BASE); c->state = (val & PLLE_BASE_ENABLE) ? ON : OFF; - c->mul = (val & PLLE_BASE_DIVN_MASK) >> PLLE_BASE_DIVN_SHIFT; - c->div = (val & PLLE_BASE_DIVM_MASK) >> PLLE_BASE_DIVM_SHIFT; - c->div *= (val & PLLE_BASE_DIVP_MASK) >> PLLE_BASE_DIVP_SHIFT; + return c->state; } -static void tegra30_plle_clk_disable(struct clk *c) +static void tegra30_plle_clk_disable(struct clk_hw *hw) { + struct clk_tegra *c = to_clk_tegra(hw); u32 val; - pr_debug("%s on clock %s\n", __func__, c->name); val = clk_readl(c->reg + PLL_BASE); val &= ~(PLLE_BASE_CML_ENABLE | PLLE_BASE_ENABLE); clk_writel(val, c->reg + PLL_BASE); } -static void tegra30_plle_training(struct clk *c) +static void tegra30_plle_training(struct clk_tegra *c) { u32 val; @@ -1198,12 +1404,15 @@ static void tegra30_plle_training(struct clk *c) } while (!(val & PLLE_MISC_READY)); } -static int tegra30_plle_configure(struct clk *c, bool force_training) +static int tegra30_plle_configure(struct clk_hw *hw, bool force_training) { - u32 val; + struct clk_tegra *c = to_clk_tegra(hw); + struct clk *parent = __clk_get_parent(hw->clk); const struct clk_pll_freq_table *sel; + u32 val; + unsigned long rate = c->u.pll.fixed_rate; - unsigned long input_rate = clk_get_rate(c->parent); + unsigned long input_rate = __clk_get_rate(parent); for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) { if (sel->input_rate == input_rate && sel->output_rate == rate) @@ -1214,7 +1423,7 @@ static int tegra30_plle_configure(struct clk *c, bool force_training) return -ENOSYS; /* disable PLLE, clear setup fiels */ - tegra30_plle_clk_disable(c); + tegra30_plle_clk_disable(hw); val = clk_readl(c->reg + PLL_MISC(c)); val &= ~(PLLE_MISC_LOCK_ENABLE | PLLE_MISC_SETUP_MASK); @@ -1252,52 +1461,64 @@ static int tegra30_plle_configure(struct clk *c, bool force_training) return 0; } -static int tegra30_plle_clk_enable(struct clk *c) +static int tegra30_plle_clk_enable(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + + return tegra30_plle_configure(hw, !c->set); +} + +static unsigned long tegra30_plle_clk_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) { - pr_debug("%s on clock %s\n", __func__, c->name); - return tegra30_plle_configure(c, !c->set); + struct clk_tegra *c = to_clk_tegra(hw); + unsigned long rate = parent_rate; + u32 val; + + val = clk_readl(c->reg + PLL_BASE); + c->mul = (val & PLLE_BASE_DIVN_MASK) >> PLLE_BASE_DIVN_SHIFT; + c->div = (val & PLLE_BASE_DIVM_MASK) >> PLLE_BASE_DIVM_SHIFT; + c->div *= (val & PLLE_BASE_DIVP_MASK) >> PLLE_BASE_DIVP_SHIFT; + + if (c->mul != 0 && c->div != 0) { + rate *= c->mul; + rate += c->div - 1; /* round up */ + do_div(rate, c->div); + } + return rate; } -static struct clk_ops tegra_plle_ops = { - .init = tegra30_plle_clk_init, - .enable = tegra30_plle_clk_enable, - .disable = tegra30_plle_clk_disable, +struct clk_ops tegra30_plle_ops = { + .is_enabled = tegra30_plle_clk_is_enabled, + .enable = tegra30_plle_clk_enable, + .disable = tegra30_plle_clk_disable, + .recalc_rate = tegra30_plle_clk_recalc_rate, }; /* Clock divider ops */ -static void tegra30_pll_div_clk_init(struct clk *c) +static int tegra30_pll_div_clk_is_enabled(struct clk_hw *hw) { + struct clk_tegra *c = to_clk_tegra(hw); + if (c->flags & DIV_U71) { - u32 divu71; u32 val = clk_readl(c->reg); val >>= c->reg_shift; c->state = (val & PLL_OUT_CLKEN) ? ON : OFF; if (!(val & PLL_OUT_RESET_DISABLE)) c->state = OFF; - - divu71 = (val & PLL_OUT_RATIO_MASK) >> PLL_OUT_RATIO_SHIFT; - c->div = (divu71 + 2); - c->mul = 2; - } else if (c->flags & DIV_2) { - c->state = ON; - if (c->flags & (PLLD | PLLX)) { - c->div = 2; - c->mul = 1; - } else - BUG(); } else { c->state = ON; - c->div = 1; - c->mul = 1; } + return c->state; } -static int tegra30_pll_div_clk_enable(struct clk *c) +static int tegra30_pll_div_clk_enable(struct clk_hw *hw) { + struct clk_tegra *c = to_clk_tegra(hw); u32 val; u32 new_val; - pr_debug("%s: %s\n", __func__, c->name); + pr_debug("%s: %s\n", __func__, __clk_get_name(hw->clk)); if (c->flags & DIV_U71) { val = clk_readl(c->reg); new_val = val >> c->reg_shift; @@ -1315,12 +1536,13 @@ static int tegra30_pll_div_clk_enable(struct clk *c) return -EINVAL; } -static void tegra30_pll_div_clk_disable(struct clk *c) +static void tegra30_pll_div_clk_disable(struct clk_hw *hw) { + struct clk_tegra *c = to_clk_tegra(hw); u32 val; u32 new_val; - pr_debug("%s: %s\n", __func__, c->name); + pr_debug("%s: %s\n", __func__, __clk_get_name(hw->clk)); if (c->flags & DIV_U71) { val = clk_readl(c->reg); new_val = val >> c->reg_shift; @@ -1334,14 +1556,14 @@ static void tegra30_pll_div_clk_disable(struct clk *c) } } -static int tegra30_pll_div_clk_set_rate(struct clk *c, unsigned long rate) +static int tegra30_pll_div_clk_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) { + struct clk_tegra *c = to_clk_tegra(hw); u32 val; u32 new_val; int divider_u71; - unsigned long parent_rate = clk_get_rate(c->parent); - pr_debug("%s: %s %lu\n", __func__, c->name, rate); if (c->flags & DIV_U71) { divider_u71 = clk_div71_get_divider( parent_rate, rate, c->flags, ROUND_DIVIDER_UP); @@ -1359,19 +1581,59 @@ static int tegra30_pll_div_clk_set_rate(struct clk *c, unsigned long rate) clk_writel_delay(val, c->reg); c->div = divider_u71 + 2; c->mul = 2; + c->fixed_rate = rate; return 0; } - } else if (c->flags & DIV_2) - return clk_set_rate(c->parent, rate * 2); + } else if (c->flags & DIV_2) { + c->fixed_rate = rate; + return 0; + } return -EINVAL; } -static long tegra30_pll_div_clk_round_rate(struct clk *c, unsigned long rate) +static unsigned long tegra30_pll_div_clk_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u64 rate = parent_rate; + + if (c->flags & DIV_U71) { + u32 divu71; + u32 val = clk_readl(c->reg); + val >>= c->reg_shift; + + divu71 = (val & PLL_OUT_RATIO_MASK) >> PLL_OUT_RATIO_SHIFT; + c->div = (divu71 + 2); + c->mul = 2; + } else if (c->flags & DIV_2) { + if (c->flags & (PLLD | PLLX)) { + c->div = 2; + c->mul = 1; + } else + BUG(); + } else { + c->div = 1; + c->mul = 1; + } + if (c->mul != 0 && c->div != 0) { + rate *= c->mul; + rate += c->div - 1; /* round up */ + do_div(rate, c->div); + } + + return rate; +} + +static long tegra30_pll_div_clk_round_rate(struct clk_hw *hw, + unsigned long rate, unsigned long *prate) { + struct clk_tegra *c = to_clk_tegra(hw); + unsigned long parent_rate = __clk_get_rate(__clk_get_parent(hw->clk)); int divider; - unsigned long parent_rate = clk_get_rate(c->parent); - pr_debug("%s: %s %lu\n", __func__, c->name, rate); + + if (prate) + parent_rate = *prate; if (c->flags & DIV_U71) { divider = clk_div71_get_divider( @@ -1379,23 +1641,25 @@ static long tegra30_pll_div_clk_round_rate(struct clk *c, unsigned long rate) if (divider < 0) return divider; return DIV_ROUND_UP(parent_rate * 2, divider + 2); - } else if (c->flags & DIV_2) - /* no rounding - fixed DIV_2 dividers pass rate to parent PLL */ + } else if (c->flags & DIV_2) { + *prate = rate * 2; return rate; + } return -EINVAL; } -static struct clk_ops tegra_pll_div_ops = { - .init = tegra30_pll_div_clk_init, - .enable = tegra30_pll_div_clk_enable, - .disable = tegra30_pll_div_clk_disable, - .set_rate = tegra30_pll_div_clk_set_rate, - .round_rate = tegra30_pll_div_clk_round_rate, +struct clk_ops tegra30_pll_div_ops = { + .is_enabled = tegra30_pll_div_clk_is_enabled, + .enable = tegra30_pll_div_clk_enable, + .disable = tegra30_pll_div_clk_disable, + .set_rate = tegra30_pll_div_clk_set_rate, + .recalc_rate = tegra30_pll_div_clk_recalc_rate, + .round_rate = tegra30_pll_div_clk_round_rate, }; /* Periph clk ops */ -static inline u32 periph_clk_source_mask(struct clk *c) +static inline u32 periph_clk_source_mask(struct clk_tegra *c) { if (c->flags & MUX8) return 7 << 29; @@ -1409,7 +1673,7 @@ static inline u32 periph_clk_source_mask(struct clk *c) return 3 << 30; } -static inline u32 periph_clk_source_shift(struct clk *c) +static inline u32 periph_clk_source_shift(struct clk_tegra *c) { if (c->flags & MUX8) return 29; @@ -1423,47 +1687,9 @@ static inline u32 periph_clk_source_shift(struct clk *c) return 30; } -static void tegra30_periph_clk_init(struct clk *c) +static int tegra30_periph_clk_is_enabled(struct clk_hw *hw) { - u32 val = clk_readl(c->reg); - const struct clk_mux_sel *mux = 0; - const struct clk_mux_sel *sel; - if (c->flags & MUX) { - for (sel = c->inputs; sel->input != NULL; sel++) { - if (((val & periph_clk_source_mask(c)) >> - periph_clk_source_shift(c)) == sel->value) - mux = sel; - } - BUG_ON(!mux); - - c->parent = mux->input; - } else { - c->parent = c->inputs[0].input; - } - - if (c->flags & DIV_U71) { - u32 divu71 = val & PERIPH_CLK_SOURCE_DIVU71_MASK; - if ((c->flags & DIV_U71_UART) && - (!(val & PERIPH_CLK_UART_DIV_ENB))) { - divu71 = 0; - } - if (c->flags & DIV_U71_IDLE) { - val &= ~(PERIPH_CLK_SOURCE_DIVU71_MASK << - PERIPH_CLK_SOURCE_DIVIDLE_SHIFT); - val |= (PERIPH_CLK_SOURCE_DIVIDLE_VAL << - PERIPH_CLK_SOURCE_DIVIDLE_SHIFT); - clk_writel(val, c->reg); - } - c->div = divu71 + 2; - c->mul = 2; - } else if (c->flags & DIV_U16) { - u32 divu16 = val & PERIPH_CLK_SOURCE_DIVU16_MASK; - c->div = divu16 + 1; - c->mul = 1; - } else { - c->div = 1; - c->mul = 1; - } + struct clk_tegra *c = to_clk_tegra(hw); c->state = ON; if (!(clk_readl(PERIPH_CLK_TO_ENB_REG(c)) & PERIPH_CLK_TO_BIT(c))) @@ -1471,11 +1697,12 @@ static void tegra30_periph_clk_init(struct clk *c) if (!(c->flags & PERIPH_NO_RESET)) if (clk_readl(PERIPH_CLK_TO_RST_REG(c)) & PERIPH_CLK_TO_BIT(c)) c->state = OFF; + return c->state; } -static int tegra30_periph_clk_enable(struct clk *c) +static int tegra30_periph_clk_enable(struct clk_hw *hw) { - pr_debug("%s on clock %s\n", __func__, c->name); + struct clk_tegra *c = to_clk_tegra(hw); tegra_periph_clk_enable_refcount[c->u.periph.clk_num]++; if (tegra_periph_clk_enable_refcount[c->u.periph.clk_num] > 1) @@ -1494,31 +1721,29 @@ static int tegra30_periph_clk_enable(struct clk *c) return 0; } -static void tegra30_periph_clk_disable(struct clk *c) +static void tegra30_periph_clk_disable(struct clk_hw *hw) { + struct clk_tegra *c = to_clk_tegra(hw); unsigned long val; - pr_debug("%s on clock %s\n", __func__, c->name); - if (c->refcnt) - tegra_periph_clk_enable_refcount[c->u.periph.clk_num]--; + tegra_periph_clk_enable_refcount[c->u.periph.clk_num]--; + + if (tegra_periph_clk_enable_refcount[c->u.periph.clk_num] > 0) + return; - if (tegra_periph_clk_enable_refcount[c->u.periph.clk_num] == 0) { - /* If peripheral is in the APB bus then read the APB bus to - * flush the write operation in apb bus. This will avoid the - * peripheral access after disabling clock*/ - if (c->flags & PERIPH_ON_APB) - val = chipid_readl(); + /* If peripheral is in the APB bus then read the APB bus to + * flush the write operation in apb bus. This will avoid the + * peripheral access after disabling clock*/ + if (c->flags & PERIPH_ON_APB) + val = chipid_readl(); - clk_writel_delay( - PERIPH_CLK_TO_BIT(c), PERIPH_CLK_TO_ENB_CLR_REG(c)); - } + clk_writel_delay(PERIPH_CLK_TO_BIT(c), PERIPH_CLK_TO_ENB_CLR_REG(c)); } -static void tegra30_periph_clk_reset(struct clk *c, bool assert) +void tegra30_periph_clk_reset(struct clk_hw *hw, bool assert) { + struct clk_tegra *c = to_clk_tegra(hw); unsigned long val; - pr_debug("%s %s on clock %s\n", __func__, - assert ? "assert" : "deassert", c->name); if (!(c->flags & PERIPH_NO_RESET)) { if (assert) { @@ -1537,42 +1762,40 @@ static void tegra30_periph_clk_reset(struct clk *c, bool assert) } } -static int tegra30_periph_clk_set_parent(struct clk *c, struct clk *p) +static int tegra30_periph_clk_set_parent(struct clk_hw *hw, u8 index) { + struct clk_tegra *c = to_clk_tegra(hw); u32 val; - const struct clk_mux_sel *sel; - pr_debug("%s: %s %s\n", __func__, c->name, p->name); if (!(c->flags & MUX)) - return (p == c->parent) ? 0 : (-EINVAL); - - for (sel = c->inputs; sel->input != NULL; sel++) { - if (sel->input == p) { - val = clk_readl(c->reg); - val &= ~periph_clk_source_mask(c); - val |= (sel->value << periph_clk_source_shift(c)); - - if (c->refcnt) - clk_enable(p); + return (index == 0) ? 0 : (-EINVAL); - clk_writel_delay(val, c->reg); + val = clk_readl(c->reg); + val &= ~periph_clk_source_mask(c); + val |= (index << periph_clk_source_shift(c)); + clk_writel_delay(val, c->reg); + return 0; +} - if (c->refcnt && c->parent) - clk_disable(c->parent); +static u8 tegra30_periph_clk_get_parent(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u32 val = clk_readl(c->reg); + int source = (val & periph_clk_source_mask(c)) >> + periph_clk_source_shift(c); - clk_reparent(c, p); - return 0; - } - } + if (!(c->flags & MUX)) + return 0; - return -EINVAL; + return source; } -static int tegra30_periph_clk_set_rate(struct clk *c, unsigned long rate) +static int tegra30_periph_clk_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) { + struct clk_tegra *c = to_clk_tegra(hw); u32 val; int divider; - unsigned long parent_rate = clk_get_rate(c->parent); if (c->flags & DIV_U71) { divider = clk_div71_get_divider( @@ -1611,12 +1834,15 @@ static int tegra30_periph_clk_set_rate(struct clk *c, unsigned long rate) return -EINVAL; } -static long tegra30_periph_clk_round_rate(struct clk *c, - unsigned long rate) +static long tegra30_periph_clk_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) { + struct clk_tegra *c = to_clk_tegra(hw); + unsigned long parent_rate = __clk_get_rate(__clk_get_parent(hw->clk)); int divider; - unsigned long parent_rate = clk_get_rate(c->parent); - pr_debug("%s: %s %lu\n", __func__, c->name, rate); + + if (prate) + parent_rate = *prate; if (c->flags & DIV_U71) { divider = clk_div71_get_divider( @@ -1634,21 +1860,85 @@ static long tegra30_periph_clk_round_rate(struct clk *c, return -EINVAL; } -static struct clk_ops tegra_periph_clk_ops = { - .init = &tegra30_periph_clk_init, +static unsigned long tegra30_periph_clk_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u64 rate = parent_rate; + u32 val = clk_readl(c->reg); + + if (c->flags & DIV_U71) { + u32 divu71 = val & PERIPH_CLK_SOURCE_DIVU71_MASK; + if ((c->flags & DIV_U71_UART) && + (!(val & PERIPH_CLK_UART_DIV_ENB))) { + divu71 = 0; + } + if (c->flags & DIV_U71_IDLE) { + val &= ~(PERIPH_CLK_SOURCE_DIVU71_MASK << + PERIPH_CLK_SOURCE_DIVIDLE_SHIFT); + val |= (PERIPH_CLK_SOURCE_DIVIDLE_VAL << + PERIPH_CLK_SOURCE_DIVIDLE_SHIFT); + clk_writel(val, c->reg); + } + c->div = divu71 + 2; + c->mul = 2; + } else if (c->flags & DIV_U16) { + u32 divu16 = val & PERIPH_CLK_SOURCE_DIVU16_MASK; + c->div = divu16 + 1; + c->mul = 1; + } else { + c->div = 1; + c->mul = 1; + } + + if (c->mul != 0 && c->div != 0) { + rate *= c->mul; + rate += c->div - 1; /* round up */ + do_div(rate, c->div); + } + return rate; +} + +struct clk_ops tegra30_periph_clk_ops = { + .is_enabled = tegra30_periph_clk_is_enabled, + .enable = tegra30_periph_clk_enable, + .disable = tegra30_periph_clk_disable, + .set_parent = tegra30_periph_clk_set_parent, + .get_parent = tegra30_periph_clk_get_parent, + .set_rate = tegra30_periph_clk_set_rate, + .round_rate = tegra30_periph_clk_round_rate, + .recalc_rate = tegra30_periph_clk_recalc_rate, +}; + +static int tegra30_dsib_clk_set_parent(struct clk_hw *hw, u8 index) +{ + struct clk *d = clk_get_sys(NULL, "pll_d"); + /* The DSIB parent selection bit is in PLLD base + register - can not do direct r-m-w, must be + protected by PLLD lock */ + tegra_clk_cfg_ex( + d, TEGRA_CLK_PLLD_MIPI_MUX_SEL, index); + + return 0; +} + +struct clk_ops tegra30_dsib_clk_ops = { + .is_enabled = tegra30_periph_clk_is_enabled, .enable = &tegra30_periph_clk_enable, .disable = &tegra30_periph_clk_disable, - .set_parent = &tegra30_periph_clk_set_parent, + .set_parent = &tegra30_dsib_clk_set_parent, + .get_parent = &tegra30_periph_clk_get_parent, .set_rate = &tegra30_periph_clk_set_rate, .round_rate = &tegra30_periph_clk_round_rate, - .reset = &tegra30_periph_clk_reset, + .recalc_rate = &tegra30_periph_clk_recalc_rate, }; - /* Periph extended clock configuration ops */ -static int -tegra30_vi_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting) +int tegra30_vi_clk_cfg_ex(struct clk_hw *hw, + enum tegra_clk_ex_param p, u32 setting) { + struct clk_tegra *c = to_clk_tegra(hw); + if (p == TEGRA_CLK_VI_INP_SEL) { u32 val = clk_readl(c->reg); val &= ~PERIPH_CLK_VI_SEL_EX_MASK; @@ -1660,20 +1950,11 @@ tegra30_vi_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting) return -EINVAL; } -static struct clk_ops tegra_vi_clk_ops = { - .init = &tegra30_periph_clk_init, - .enable = &tegra30_periph_clk_enable, - .disable = &tegra30_periph_clk_disable, - .set_parent = &tegra30_periph_clk_set_parent, - .set_rate = &tegra30_periph_clk_set_rate, - .round_rate = &tegra30_periph_clk_round_rate, - .clk_cfg_ex = &tegra30_vi_clk_cfg_ex, - .reset = &tegra30_periph_clk_reset, -}; - -static int -tegra30_nand_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting) +int tegra30_nand_clk_cfg_ex(struct clk_hw *hw, + enum tegra_clk_ex_param p, u32 setting) { + struct clk_tegra *c = to_clk_tegra(hw); + if (p == TEGRA_CLK_NAND_PAD_DIV2_ENB) { u32 val = clk_readl(c->reg); if (setting) @@ -1686,21 +1967,11 @@ tegra30_nand_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting) return -EINVAL; } -static struct clk_ops tegra_nand_clk_ops = { - .init = &tegra30_periph_clk_init, - .enable = &tegra30_periph_clk_enable, - .disable = &tegra30_periph_clk_disable, - .set_parent = &tegra30_periph_clk_set_parent, - .set_rate = &tegra30_periph_clk_set_rate, - .round_rate = &tegra30_periph_clk_round_rate, - .clk_cfg_ex = &tegra30_nand_clk_cfg_ex, - .reset = &tegra30_periph_clk_reset, -}; - - -static int -tegra30_dtv_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting) +int tegra30_dtv_clk_cfg_ex(struct clk_hw *hw, + enum tegra_clk_ex_param p, u32 setting) { + struct clk_tegra *c = to_clk_tegra(hw); + if (p == TEGRA_CLK_DTV_INVERT) { u32 val = clk_readl(c->reg); if (setting) @@ -1713,91 +1984,27 @@ tegra30_dtv_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting) return -EINVAL; } -static struct clk_ops tegra_dtv_clk_ops = { - .init = &tegra30_periph_clk_init, - .enable = &tegra30_periph_clk_enable, - .disable = &tegra30_periph_clk_disable, - .set_parent = &tegra30_periph_clk_set_parent, - .set_rate = &tegra30_periph_clk_set_rate, - .round_rate = &tegra30_periph_clk_round_rate, - .clk_cfg_ex = &tegra30_dtv_clk_cfg_ex, - .reset = &tegra30_periph_clk_reset, -}; - -static int tegra30_dsib_clk_set_parent(struct clk *c, struct clk *p) -{ - const struct clk_mux_sel *sel; - struct clk *d = tegra_get_clock_by_name("pll_d"); - - pr_debug("%s: %s %s\n", __func__, c->name, p->name); - - for (sel = c->inputs; sel->input != NULL; sel++) { - if (sel->input == p) { - if (c->refcnt) - clk_enable(p); - - /* The DSIB parent selection bit is in PLLD base - register - can not do direct r-m-w, must be - protected by PLLD lock */ - tegra_clk_cfg_ex( - d, TEGRA_CLK_PLLD_MIPI_MUX_SEL, sel->value); - - if (c->refcnt && c->parent) - clk_disable(c->parent); - - clk_reparent(c, p); - return 0; - } - } - - return -EINVAL; -} - -static struct clk_ops tegra_dsib_clk_ops = { - .init = &tegra30_periph_clk_init, - .enable = &tegra30_periph_clk_enable, - .disable = &tegra30_periph_clk_disable, - .set_parent = &tegra30_dsib_clk_set_parent, - .set_rate = &tegra30_periph_clk_set_rate, - .round_rate = &tegra30_periph_clk_round_rate, - .reset = &tegra30_periph_clk_reset, -}; - -/* pciex clock support only reset function */ -static struct clk_ops tegra_pciex_clk_ops = { - .reset = tegra30_periph_clk_reset, -}; - /* Output clock ops */ static DEFINE_SPINLOCK(clk_out_lock); -static void tegra30_clk_out_init(struct clk *c) +static int tegra30_clk_out_is_enabled(struct clk_hw *hw) { - const struct clk_mux_sel *mux = 0; - const struct clk_mux_sel *sel; + struct clk_tegra *c = to_clk_tegra(hw); u32 val = pmc_readl(c->reg); c->state = (val & (0x1 << c->u.periph.clk_num)) ? ON : OFF; c->mul = 1; c->div = 1; - - for (sel = c->inputs; sel->input != NULL; sel++) { - if (((val & periph_clk_source_mask(c)) >> - periph_clk_source_shift(c)) == sel->value) - mux = sel; - } - BUG_ON(!mux); - c->parent = mux->input; + return c->state; } -static int tegra30_clk_out_enable(struct clk *c) +static int tegra30_clk_out_enable(struct clk_hw *hw) { + struct clk_tegra *c = to_clk_tegra(hw); u32 val; unsigned long flags; - pr_debug("%s on clock %s\n", __func__, c->name); - spin_lock_irqsave(&clk_out_lock, flags); val = pmc_readl(c->reg); val |= (0x1 << c->u.periph.clk_num); @@ -1807,13 +2014,12 @@ static int tegra30_clk_out_enable(struct clk *c) return 0; } -static void tegra30_clk_out_disable(struct clk *c) +static void tegra30_clk_out_disable(struct clk_hw *hw) { + struct clk_tegra *c = to_clk_tegra(hw); u32 val; unsigned long flags; - pr_debug("%s on clock %s\n", __func__, c->name); - spin_lock_irqsave(&clk_out_lock, flags); val = pmc_readl(c->reg); val &= ~(0x1 << c->u.periph.clk_num); @@ -1821,59 +2027,59 @@ static void tegra30_clk_out_disable(struct clk *c) spin_unlock_irqrestore(&clk_out_lock, flags); } -static int tegra30_clk_out_set_parent(struct clk *c, struct clk *p) +static int tegra30_clk_out_set_parent(struct clk_hw *hw, u8 index) { + struct clk_tegra *c = to_clk_tegra(hw); u32 val; unsigned long flags; - const struct clk_mux_sel *sel; - pr_debug("%s: %s %s\n", __func__, c->name, p->name); - - for (sel = c->inputs; sel->input != NULL; sel++) { - if (sel->input == p) { - if (c->refcnt) - clk_enable(p); + spin_lock_irqsave(&clk_out_lock, flags); + val = pmc_readl(c->reg); + val &= ~periph_clk_source_mask(c); + val |= (index << periph_clk_source_shift(c)); + pmc_writel(val, c->reg); + spin_unlock_irqrestore(&clk_out_lock, flags); - spin_lock_irqsave(&clk_out_lock, flags); - val = pmc_readl(c->reg); - val &= ~periph_clk_source_mask(c); - val |= (sel->value << periph_clk_source_shift(c)); - pmc_writel(val, c->reg); - spin_unlock_irqrestore(&clk_out_lock, flags); + return 0; +} - if (c->refcnt && c->parent) - clk_disable(c->parent); +static u8 tegra30_clk_out_get_parent(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u32 val = pmc_readl(c->reg); + int source; - clk_reparent(c, p); - return 0; - } - } - return -EINVAL; + source = (val & periph_clk_source_mask(c)) >> + periph_clk_source_shift(c); + return source; } -static struct clk_ops tegra_clk_out_ops = { - .init = &tegra30_clk_out_init, - .enable = &tegra30_clk_out_enable, - .disable = &tegra30_clk_out_disable, - .set_parent = &tegra30_clk_out_set_parent, +struct clk_ops tegra_clk_out_ops = { + .is_enabled = tegra30_clk_out_is_enabled, + .enable = tegra30_clk_out_enable, + .disable = tegra30_clk_out_disable, + .set_parent = tegra30_clk_out_set_parent, + .get_parent = tegra30_clk_out_get_parent, + .recalc_rate = tegra30_clk_fixed_recalc_rate, }; - /* Clock doubler ops */ -static void tegra30_clk_double_init(struct clk *c) +static int tegra30_clk_double_is_enabled(struct clk_hw *hw) { - u32 val = clk_readl(c->reg); - c->mul = val & (0x1 << c->reg_shift) ? 1 : 2; - c->div = 1; + struct clk_tegra *c = to_clk_tegra(hw); + c->state = ON; if (!(clk_readl(PERIPH_CLK_TO_ENB_REG(c)) & PERIPH_CLK_TO_BIT(c))) c->state = OFF; + return c->state; }; -static int tegra30_clk_double_set_rate(struct clk *c, unsigned long rate) +static int tegra30_clk_double_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) { + struct clk_tegra *c = to_clk_tegra(hw); u32 val; - unsigned long parent_rate = clk_get_rate(c->parent); + if (rate == parent_rate) { val = clk_readl(c->reg) | (0x1 << c->reg_shift); clk_writel(val, c->reg); @@ -1890,1215 +2096,200 @@ static int tegra30_clk_double_set_rate(struct clk *c, unsigned long rate) return -EINVAL; } -static struct clk_ops tegra_clk_double_ops = { - .init = &tegra30_clk_double_init, - .enable = &tegra30_periph_clk_enable, - .disable = &tegra30_periph_clk_disable, - .set_rate = &tegra30_clk_double_set_rate, -}; +static unsigned long tegra30_clk_double_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u64 rate = parent_rate; -/* Audio sync clock ops */ -static int tegra30_sync_source_set_rate(struct clk *c, unsigned long rate) + u32 val = clk_readl(c->reg); + c->mul = val & (0x1 << c->reg_shift) ? 1 : 2; + c->div = 1; + + if (c->mul != 0 && c->div != 0) { + rate *= c->mul; + rate += c->div - 1; /* round up */ + do_div(rate, c->div); + } + + return rate; +} + +static long tegra30_clk_double_round_rate(struct clk_hw *hw, unsigned long rate, + unsigned long *prate) { - c->rate = rate; - return 0; + unsigned long output_rate = *prate; + + do_div(output_rate, 2); + return output_rate; } -static struct clk_ops tegra_sync_source_ops = { - .set_rate = &tegra30_sync_source_set_rate, +struct clk_ops tegra30_clk_double_ops = { + .is_enabled = tegra30_clk_double_is_enabled, + .enable = tegra30_periph_clk_enable, + .disable = tegra30_periph_clk_disable, + .recalc_rate = tegra30_clk_double_recalc_rate, + .round_rate = tegra30_clk_double_round_rate, + .set_rate = tegra30_clk_double_set_rate, +}; + +/* Audio sync clock ops */ +struct clk_ops tegra_sync_source_ops = { + .recalc_rate = tegra30_clk_fixed_recalc_rate, }; -static void tegra30_audio_sync_clk_init(struct clk *c) +static int tegra30_audio_sync_clk_is_enabled(struct clk_hw *hw) { - int source; - const struct clk_mux_sel *sel; + struct clk_tegra *c = to_clk_tegra(hw); u32 val = clk_readl(c->reg); c->state = (val & AUDIO_SYNC_DISABLE_BIT) ? OFF : ON; - source = val & AUDIO_SYNC_SOURCE_MASK; - for (sel = c->inputs; sel->input != NULL; sel++) - if (sel->value == source) - break; - BUG_ON(sel->input == NULL); - c->parent = sel->input; + return c->state; } -static int tegra30_audio_sync_clk_enable(struct clk *c) +static int tegra30_audio_sync_clk_enable(struct clk_hw *hw) { + struct clk_tegra *c = to_clk_tegra(hw); u32 val = clk_readl(c->reg); clk_writel((val & (~AUDIO_SYNC_DISABLE_BIT)), c->reg); return 0; } -static void tegra30_audio_sync_clk_disable(struct clk *c) +static void tegra30_audio_sync_clk_disable(struct clk_hw *hw) { + struct clk_tegra *c = to_clk_tegra(hw); u32 val = clk_readl(c->reg); clk_writel((val | AUDIO_SYNC_DISABLE_BIT), c->reg); } -static int tegra30_audio_sync_clk_set_parent(struct clk *c, struct clk *p) +static int tegra30_audio_sync_clk_set_parent(struct clk_hw *hw, u8 index) { + struct clk_tegra *c = to_clk_tegra(hw); u32 val; - const struct clk_mux_sel *sel; - for (sel = c->inputs; sel->input != NULL; sel++) { - if (sel->input == p) { - val = clk_readl(c->reg); - val &= ~AUDIO_SYNC_SOURCE_MASK; - val |= sel->value; - - if (c->refcnt) - clk_enable(p); - clk_writel(val, c->reg); + val = clk_readl(c->reg); + val &= ~AUDIO_SYNC_SOURCE_MASK; + val |= index; - if (c->refcnt && c->parent) - clk_disable(c->parent); + clk_writel(val, c->reg); + return 0; +} - clk_reparent(c, p); - return 0; - } - } +static u8 tegra30_audio_sync_clk_get_parent(struct clk_hw *hw) +{ + struct clk_tegra *c = to_clk_tegra(hw); + u32 val = clk_readl(c->reg); + int source; - return -EINVAL; + source = val & AUDIO_SYNC_SOURCE_MASK; + return source; } -static struct clk_ops tegra_audio_sync_clk_ops = { - .init = tegra30_audio_sync_clk_init, - .enable = tegra30_audio_sync_clk_enable, - .disable = tegra30_audio_sync_clk_disable, +struct clk_ops tegra30_audio_sync_clk_ops = { + .is_enabled = tegra30_audio_sync_clk_is_enabled, + .enable = tegra30_audio_sync_clk_enable, + .disable = tegra30_audio_sync_clk_disable, .set_parent = tegra30_audio_sync_clk_set_parent, + .get_parent = tegra30_audio_sync_clk_get_parent, + .recalc_rate = tegra30_clk_fixed_recalc_rate, }; /* cml0 (pcie), and cml1 (sata) clock ops */ -static void tegra30_cml_clk_init(struct clk *c) +static int tegra30_cml_clk_is_enabled(struct clk_hw *hw) { + struct clk_tegra *c = to_clk_tegra(hw); u32 val = clk_readl(c->reg); c->state = val & (0x1 << c->u.periph.clk_num) ? ON : OFF; + return c->state; } -static int tegra30_cml_clk_enable(struct clk *c) +static int tegra30_cml_clk_enable(struct clk_hw *hw) { + struct clk_tegra *c = to_clk_tegra(hw); + u32 val = clk_readl(c->reg); val |= (0x1 << c->u.periph.clk_num); clk_writel(val, c->reg); + return 0; } -static void tegra30_cml_clk_disable(struct clk *c) +static void tegra30_cml_clk_disable(struct clk_hw *hw) { + struct clk_tegra *c = to_clk_tegra(hw); + u32 val = clk_readl(c->reg); val &= ~(0x1 << c->u.periph.clk_num); clk_writel(val, c->reg); } -static struct clk_ops tegra_cml_clk_ops = { - .init = &tegra30_cml_clk_init, - .enable = &tegra30_cml_clk_enable, - .disable = &tegra30_cml_clk_disable, -}; - -/* Clock definitions */ -static struct clk tegra_clk_32k = { - .name = "clk_32k", - .rate = 32768, - .ops = NULL, - .max_rate = 32768, -}; - -static struct clk tegra_clk_m = { - .name = "clk_m", - .flags = ENABLE_ON_INIT, - .ops = &tegra_clk_m_ops, - .reg = 0x1fc, - .reg_shift = 28, - .max_rate = 48000000, -}; - -static struct clk tegra_clk_m_div2 = { - .name = "clk_m_div2", - .ops = &tegra_clk_m_div_ops, - .parent = &tegra_clk_m, - .mul = 1, - .div = 2, - .state = ON, - .max_rate = 24000000, -}; - -static struct clk tegra_clk_m_div4 = { - .name = "clk_m_div4", - .ops = &tegra_clk_m_div_ops, - .parent = &tegra_clk_m, - .mul = 1, - .div = 4, - .state = ON, - .max_rate = 12000000, -}; - -static struct clk tegra_pll_ref = { - .name = "pll_ref", - .flags = ENABLE_ON_INIT, - .ops = &tegra_pll_ref_ops, - .parent = &tegra_clk_m, - .max_rate = 26000000, -}; - -static struct clk_pll_freq_table tegra_pll_c_freq_table[] = { - { 12000000, 1040000000, 520, 6, 1, 8}, - { 13000000, 1040000000, 480, 6, 1, 8}, - { 16800000, 1040000000, 495, 8, 1, 8}, /* actual: 1039.5 MHz */ - { 19200000, 1040000000, 325, 6, 1, 6}, - { 26000000, 1040000000, 520, 13, 1, 8}, - - { 12000000, 832000000, 416, 6, 1, 8}, - { 13000000, 832000000, 832, 13, 1, 8}, - { 16800000, 832000000, 396, 8, 1, 8}, /* actual: 831.6 MHz */ - { 19200000, 832000000, 260, 6, 1, 8}, - { 26000000, 832000000, 416, 13, 1, 8}, - - { 12000000, 624000000, 624, 12, 1, 8}, - { 13000000, 624000000, 624, 13, 1, 8}, - { 16800000, 600000000, 520, 14, 1, 8}, - { 19200000, 624000000, 520, 16, 1, 8}, - { 26000000, 624000000, 624, 26, 1, 8}, - - { 12000000, 600000000, 600, 12, 1, 8}, - { 13000000, 600000000, 600, 13, 1, 8}, - { 16800000, 600000000, 500, 14, 1, 8}, - { 19200000, 600000000, 375, 12, 1, 6}, - { 26000000, 600000000, 600, 26, 1, 8}, - - { 12000000, 520000000, 520, 12, 1, 8}, - { 13000000, 520000000, 520, 13, 1, 8}, - { 16800000, 520000000, 495, 16, 1, 8}, /* actual: 519.75 MHz */ - { 19200000, 520000000, 325, 12, 1, 6}, - { 26000000, 520000000, 520, 26, 1, 8}, - - { 12000000, 416000000, 416, 12, 1, 8}, - { 13000000, 416000000, 416, 13, 1, 8}, - { 16800000, 416000000, 396, 16, 1, 8}, /* actual: 415.8 MHz */ - { 19200000, 416000000, 260, 12, 1, 6}, - { 26000000, 416000000, 416, 26, 1, 8}, - { 0, 0, 0, 0, 0, 0 }, -}; - -static struct clk tegra_pll_c = { - .name = "pll_c", - .flags = PLL_HAS_CPCON, - .ops = &tegra_pll_ops, - .reg = 0x80, - .parent = &tegra_pll_ref, - .max_rate = 1400000000, - .u.pll = { - .input_min = 2000000, - .input_max = 31000000, - .cf_min = 1000000, - .cf_max = 6000000, - .vco_min = 20000000, - .vco_max = 1400000000, - .freq_table = tegra_pll_c_freq_table, - .lock_delay = 300, - }, -}; - -static struct clk tegra_pll_c_out1 = { - .name = "pll_c_out1", - .ops = &tegra_pll_div_ops, - .flags = DIV_U71, - .parent = &tegra_pll_c, - .reg = 0x84, - .reg_shift = 0, - .max_rate = 700000000, -}; - -static struct clk_pll_freq_table tegra_pll_m_freq_table[] = { - { 12000000, 666000000, 666, 12, 1, 8}, - { 13000000, 666000000, 666, 13, 1, 8}, - { 16800000, 666000000, 555, 14, 1, 8}, - { 19200000, 666000000, 555, 16, 1, 8}, - { 26000000, 666000000, 666, 26, 1, 8}, - { 12000000, 600000000, 600, 12, 1, 8}, - { 13000000, 600000000, 600, 13, 1, 8}, - { 16800000, 600000000, 500, 14, 1, 8}, - { 19200000, 600000000, 375, 12, 1, 6}, - { 26000000, 600000000, 600, 26, 1, 8}, - { 0, 0, 0, 0, 0, 0 }, -}; - -static struct clk tegra_pll_m = { - .name = "pll_m", - .flags = PLL_HAS_CPCON | PLLM, - .ops = &tegra_pll_ops, - .reg = 0x90, - .parent = &tegra_pll_ref, - .max_rate = 800000000, - .u.pll = { - .input_min = 2000000, - .input_max = 31000000, - .cf_min = 1000000, - .cf_max = 6000000, - .vco_min = 20000000, - .vco_max = 1200000000, - .freq_table = tegra_pll_m_freq_table, - .lock_delay = 300, - }, -}; - -static struct clk tegra_pll_m_out1 = { - .name = "pll_m_out1", - .ops = &tegra_pll_div_ops, - .flags = DIV_U71, - .parent = &tegra_pll_m, - .reg = 0x94, - .reg_shift = 0, - .max_rate = 600000000, -}; - -static struct clk_pll_freq_table tegra_pll_p_freq_table[] = { - { 12000000, 216000000, 432, 12, 2, 8}, - { 13000000, 216000000, 432, 13, 2, 8}, - { 16800000, 216000000, 360, 14, 2, 8}, - { 19200000, 216000000, 360, 16, 2, 8}, - { 26000000, 216000000, 432, 26, 2, 8}, - { 0, 0, 0, 0, 0, 0 }, -}; - -static struct clk tegra_pll_p = { - .name = "pll_p", - .flags = ENABLE_ON_INIT | PLL_FIXED | PLL_HAS_CPCON, - .ops = &tegra_pll_ops, - .reg = 0xa0, - .parent = &tegra_pll_ref, - .max_rate = 432000000, - .u.pll = { - .input_min = 2000000, - .input_max = 31000000, - .cf_min = 1000000, - .cf_max = 6000000, - .vco_min = 20000000, - .vco_max = 1400000000, - .freq_table = tegra_pll_p_freq_table, - .lock_delay = 300, - .fixed_rate = 408000000, - }, -}; - -static struct clk tegra_pll_p_out1 = { - .name = "pll_p_out1", - .ops = &tegra_pll_div_ops, - .flags = ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, - .parent = &tegra_pll_p, - .reg = 0xa4, - .reg_shift = 0, - .max_rate = 432000000, -}; - -static struct clk tegra_pll_p_out2 = { - .name = "pll_p_out2", - .ops = &tegra_pll_div_ops, - .flags = ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, - .parent = &tegra_pll_p, - .reg = 0xa4, - .reg_shift = 16, - .max_rate = 432000000, -}; - -static struct clk tegra_pll_p_out3 = { - .name = "pll_p_out3", - .ops = &tegra_pll_div_ops, - .flags = ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, - .parent = &tegra_pll_p, - .reg = 0xa8, - .reg_shift = 0, - .max_rate = 432000000, -}; - -static struct clk tegra_pll_p_out4 = { - .name = "pll_p_out4", - .ops = &tegra_pll_div_ops, - .flags = ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, - .parent = &tegra_pll_p, - .reg = 0xa8, - .reg_shift = 16, - .max_rate = 432000000, -}; - -static struct clk_pll_freq_table tegra_pll_a_freq_table[] = { - { 9600000, 564480000, 294, 5, 1, 4}, - { 9600000, 552960000, 288, 5, 1, 4}, - { 9600000, 24000000, 5, 2, 1, 1}, - - { 28800000, 56448000, 49, 25, 1, 1}, - { 28800000, 73728000, 64, 25, 1, 1}, - { 28800000, 24000000, 5, 6, 1, 1}, - { 0, 0, 0, 0, 0, 0 }, -}; - -static struct clk tegra_pll_a = { - .name = "pll_a", - .flags = PLL_HAS_CPCON, - .ops = &tegra_pll_ops, - .reg = 0xb0, - .parent = &tegra_pll_p_out1, - .max_rate = 700000000, - .u.pll = { - .input_min = 2000000, - .input_max = 31000000, - .cf_min = 1000000, - .cf_max = 6000000, - .vco_min = 20000000, - .vco_max = 1400000000, - .freq_table = tegra_pll_a_freq_table, - .lock_delay = 300, - }, -}; - -static struct clk tegra_pll_a_out0 = { - .name = "pll_a_out0", - .ops = &tegra_pll_div_ops, - .flags = DIV_U71, - .parent = &tegra_pll_a, - .reg = 0xb4, - .reg_shift = 0, - .max_rate = 100000000, -}; - -static struct clk_pll_freq_table tegra_pll_d_freq_table[] = { - { 12000000, 216000000, 216, 12, 1, 4}, - { 13000000, 216000000, 216, 13, 1, 4}, - { 16800000, 216000000, 180, 14, 1, 4}, - { 19200000, 216000000, 180, 16, 1, 4}, - { 26000000, 216000000, 216, 26, 1, 4}, - - { 12000000, 594000000, 594, 12, 1, 8}, - { 13000000, 594000000, 594, 13, 1, 8}, - { 16800000, 594000000, 495, 14, 1, 8}, - { 19200000, 594000000, 495, 16, 1, 8}, - { 26000000, 594000000, 594, 26, 1, 8}, - - { 12000000, 1000000000, 1000, 12, 1, 12}, - { 13000000, 1000000000, 1000, 13, 1, 12}, - { 19200000, 1000000000, 625, 12, 1, 8}, - { 26000000, 1000000000, 1000, 26, 1, 12}, - - { 0, 0, 0, 0, 0, 0 }, -}; - -static struct clk tegra_pll_d = { - .name = "pll_d", - .flags = PLL_HAS_CPCON | PLLD, - .ops = &tegra_plld_ops, - .reg = 0xd0, - .parent = &tegra_pll_ref, - .max_rate = 1000000000, - .u.pll = { - .input_min = 2000000, - .input_max = 40000000, - .cf_min = 1000000, - .cf_max = 6000000, - .vco_min = 40000000, - .vco_max = 1000000000, - .freq_table = tegra_pll_d_freq_table, - .lock_delay = 1000, - }, -}; - -static struct clk tegra_pll_d_out0 = { - .name = "pll_d_out0", - .ops = &tegra_pll_div_ops, - .flags = DIV_2 | PLLD, - .parent = &tegra_pll_d, - .max_rate = 500000000, -}; - -static struct clk tegra_pll_d2 = { - .name = "pll_d2", - .flags = PLL_HAS_CPCON | PLL_ALT_MISC_REG | PLLD, - .ops = &tegra_plld_ops, - .reg = 0x4b8, - .parent = &tegra_pll_ref, - .max_rate = 1000000000, - .u.pll = { - .input_min = 2000000, - .input_max = 40000000, - .cf_min = 1000000, - .cf_max = 6000000, - .vco_min = 40000000, - .vco_max = 1000000000, - .freq_table = tegra_pll_d_freq_table, - .lock_delay = 1000, - }, -}; - -static struct clk tegra_pll_d2_out0 = { - .name = "pll_d2_out0", - .ops = &tegra_pll_div_ops, - .flags = DIV_2 | PLLD, - .parent = &tegra_pll_d2, - .max_rate = 500000000, -}; - -static struct clk_pll_freq_table tegra_pll_u_freq_table[] = { - { 12000000, 480000000, 960, 12, 2, 12}, - { 13000000, 480000000, 960, 13, 2, 12}, - { 16800000, 480000000, 400, 7, 2, 5}, - { 19200000, 480000000, 200, 4, 2, 3}, - { 26000000, 480000000, 960, 26, 2, 12}, - { 0, 0, 0, 0, 0, 0 }, -}; - -static struct clk tegra_pll_u = { - .name = "pll_u", - .flags = PLL_HAS_CPCON | PLLU, - .ops = &tegra_pll_ops, - .reg = 0xc0, - .parent = &tegra_pll_ref, - .max_rate = 480000000, - .u.pll = { - .input_min = 2000000, - .input_max = 40000000, - .cf_min = 1000000, - .cf_max = 6000000, - .vco_min = 480000000, - .vco_max = 960000000, - .freq_table = tegra_pll_u_freq_table, - .lock_delay = 1000, - }, -}; - -static struct clk_pll_freq_table tegra_pll_x_freq_table[] = { - /* 1.7 GHz */ - { 12000000, 1700000000, 850, 6, 1, 8}, - { 13000000, 1700000000, 915, 7, 1, 8}, /* actual: 1699.2 MHz */ - { 16800000, 1700000000, 708, 7, 1, 8}, /* actual: 1699.2 MHz */ - { 19200000, 1700000000, 885, 10, 1, 8}, /* actual: 1699.2 MHz */ - { 26000000, 1700000000, 850, 13, 1, 8}, - - /* 1.6 GHz */ - { 12000000, 1600000000, 800, 6, 1, 8}, - { 13000000, 1600000000, 738, 6, 1, 8}, /* actual: 1599.0 MHz */ - { 16800000, 1600000000, 857, 9, 1, 8}, /* actual: 1599.7 MHz */ - { 19200000, 1600000000, 500, 6, 1, 8}, - { 26000000, 1600000000, 800, 13, 1, 8}, - - /* 1.5 GHz */ - { 12000000, 1500000000, 750, 6, 1, 8}, - { 13000000, 1500000000, 923, 8, 1, 8}, /* actual: 1499.8 MHz */ - { 16800000, 1500000000, 625, 7, 1, 8}, - { 19200000, 1500000000, 625, 8, 1, 8}, - { 26000000, 1500000000, 750, 13, 1, 8}, - - /* 1.4 GHz */ - { 12000000, 1400000000, 700, 6, 1, 8}, - { 13000000, 1400000000, 969, 9, 1, 8}, /* actual: 1399.7 MHz */ - { 16800000, 1400000000, 1000, 12, 1, 8}, - { 19200000, 1400000000, 875, 12, 1, 8}, - { 26000000, 1400000000, 700, 13, 1, 8}, - - /* 1.3 GHz */ - { 12000000, 1300000000, 975, 9, 1, 8}, - { 13000000, 1300000000, 1000, 10, 1, 8}, - { 16800000, 1300000000, 928, 12, 1, 8}, /* actual: 1299.2 MHz */ - { 19200000, 1300000000, 812, 12, 1, 8}, /* actual: 1299.2 MHz */ - { 26000000, 1300000000, 650, 13, 1, 8}, - - /* 1.2 GHz */ - { 12000000, 1200000000, 1000, 10, 1, 8}, - { 13000000, 1200000000, 923, 10, 1, 8}, /* actual: 1199.9 MHz */ - { 16800000, 1200000000, 1000, 14, 1, 8}, - { 19200000, 1200000000, 1000, 16, 1, 8}, - { 26000000, 1200000000, 600, 13, 1, 8}, - - /* 1.1 GHz */ - { 12000000, 1100000000, 825, 9, 1, 8}, - { 13000000, 1100000000, 846, 10, 1, 8}, /* actual: 1099.8 MHz */ - { 16800000, 1100000000, 982, 15, 1, 8}, /* actual: 1099.8 MHz */ - { 19200000, 1100000000, 859, 15, 1, 8}, /* actual: 1099.5 MHz */ - { 26000000, 1100000000, 550, 13, 1, 8}, - - /* 1 GHz */ - { 12000000, 1000000000, 1000, 12, 1, 8}, - { 13000000, 1000000000, 1000, 13, 1, 8}, - { 16800000, 1000000000, 833, 14, 1, 8}, /* actual: 999.6 MHz */ - { 19200000, 1000000000, 625, 12, 1, 8}, - { 26000000, 1000000000, 1000, 26, 1, 8}, - - { 0, 0, 0, 0, 0, 0 }, -}; - -static struct clk tegra_pll_x = { - .name = "pll_x", - .flags = PLL_HAS_CPCON | PLL_ALT_MISC_REG | PLLX, - .ops = &tegra_pll_ops, - .reg = 0xe0, - .parent = &tegra_pll_ref, - .max_rate = 1700000000, - .u.pll = { - .input_min = 2000000, - .input_max = 31000000, - .cf_min = 1000000, - .cf_max = 6000000, - .vco_min = 20000000, - .vco_max = 1700000000, - .freq_table = tegra_pll_x_freq_table, - .lock_delay = 300, - }, -}; - -static struct clk tegra_pll_x_out0 = { - .name = "pll_x_out0", - .ops = &tegra_pll_div_ops, - .flags = DIV_2 | PLLX, - .parent = &tegra_pll_x, - .max_rate = 850000000, -}; - - -static struct clk_pll_freq_table tegra_pll_e_freq_table[] = { - /* PLLE special case: use cpcon field to store cml divider value */ - { 12000000, 100000000, 150, 1, 18, 11}, - { 216000000, 100000000, 200, 18, 24, 13}, - { 0, 0, 0, 0, 0, 0 }, -}; - -static struct clk tegra_pll_e = { - .name = "pll_e", - .flags = PLL_ALT_MISC_REG, - .ops = &tegra_plle_ops, - .reg = 0xe8, - .max_rate = 100000000, - .u.pll = { - .input_min = 12000000, - .input_max = 216000000, - .cf_min = 12000000, - .cf_max = 12000000, - .vco_min = 1200000000, - .vco_max = 2400000000U, - .freq_table = tegra_pll_e_freq_table, - .lock_delay = 300, - .fixed_rate = 100000000, - }, -}; - -static struct clk tegra_cml0_clk = { - .name = "cml0", - .parent = &tegra_pll_e, - .ops = &tegra_cml_clk_ops, - .reg = PLLE_AUX, - .max_rate = 100000000, - .u.periph = { - .clk_num = 0, - }, -}; - -static struct clk tegra_cml1_clk = { - .name = "cml1", - .parent = &tegra_pll_e, - .ops = &tegra_cml_clk_ops, - .reg = PLLE_AUX, - .max_rate = 100000000, - .u.periph = { - .clk_num = 1, - }, -}; - -static struct clk tegra_pciex_clk = { - .name = "pciex", - .parent = &tegra_pll_e, - .ops = &tegra_pciex_clk_ops, - .max_rate = 100000000, - .u.periph = { - .clk_num = 74, - }, -}; - -/* Audio sync clocks */ -#define SYNC_SOURCE(_id) \ - { \ - .name = #_id "_sync", \ - .rate = 24000000, \ - .max_rate = 24000000, \ - .ops = &tegra_sync_source_ops \ - } -static struct clk tegra_sync_source_list[] = { - SYNC_SOURCE(spdif_in), - SYNC_SOURCE(i2s0), - SYNC_SOURCE(i2s1), - SYNC_SOURCE(i2s2), - SYNC_SOURCE(i2s3), - SYNC_SOURCE(i2s4), - SYNC_SOURCE(vimclk), -}; - -static struct clk_mux_sel mux_audio_sync_clk[] = { - { .input = &tegra_sync_source_list[0], .value = 0}, - { .input = &tegra_sync_source_list[1], .value = 1}, - { .input = &tegra_sync_source_list[2], .value = 2}, - { .input = &tegra_sync_source_list[3], .value = 3}, - { .input = &tegra_sync_source_list[4], .value = 4}, - { .input = &tegra_sync_source_list[5], .value = 5}, - { .input = &tegra_pll_a_out0, .value = 6}, - { .input = &tegra_sync_source_list[6], .value = 7}, - { 0, 0 } +struct clk_ops tegra_cml_clk_ops = { + .is_enabled = tegra30_cml_clk_is_enabled, + .enable = tegra30_cml_clk_enable, + .disable = tegra30_cml_clk_disable, + .recalc_rate = tegra30_clk_fixed_recalc_rate, }; -#define AUDIO_SYNC_CLK(_id, _index) \ - { \ - .name = #_id, \ - .inputs = mux_audio_sync_clk, \ - .reg = 0x4A0 + (_index) * 4, \ - .max_rate = 24000000, \ - .ops = &tegra_audio_sync_clk_ops \ - } -static struct clk tegra_clk_audio_list[] = { - AUDIO_SYNC_CLK(audio0, 0), - AUDIO_SYNC_CLK(audio1, 1), - AUDIO_SYNC_CLK(audio2, 2), - AUDIO_SYNC_CLK(audio3, 3), - AUDIO_SYNC_CLK(audio4, 4), - AUDIO_SYNC_CLK(audio, 5), /* SPDIF */ +struct clk_ops tegra_pciex_clk_ops = { + .recalc_rate = tegra30_clk_fixed_recalc_rate, }; -#define AUDIO_SYNC_2X_CLK(_id, _index) \ - { \ - .name = #_id "_2x", \ - .flags = PERIPH_NO_RESET, \ - .max_rate = 48000000, \ - .ops = &tegra_clk_double_ops, \ - .reg = 0x49C, \ - .reg_shift = 24 + (_index), \ - .parent = &tegra_clk_audio_list[(_index)], \ - .u.periph = { \ - .clk_num = 113 + (_index), \ - }, \ - } -static struct clk tegra_clk_audio_2x_list[] = { - AUDIO_SYNC_2X_CLK(audio0, 0), - AUDIO_SYNC_2X_CLK(audio1, 1), - AUDIO_SYNC_2X_CLK(audio2, 2), - AUDIO_SYNC_2X_CLK(audio3, 3), - AUDIO_SYNC_2X_CLK(audio4, 4), - AUDIO_SYNC_2X_CLK(audio, 5), /* SPDIF */ -}; +/* Tegra30 CPU clock and reset control functions */ +static void tegra30_wait_cpu_in_reset(u32 cpu) +{ + unsigned int reg; -#define MUX_I2S_SPDIF(_id, _index) \ -static struct clk_mux_sel mux_pllaout0_##_id##_2x_pllp_clkm[] = { \ - {.input = &tegra_pll_a_out0, .value = 0}, \ - {.input = &tegra_clk_audio_2x_list[(_index)], .value = 1}, \ - {.input = &tegra_pll_p, .value = 2}, \ - {.input = &tegra_clk_m, .value = 3}, \ - { 0, 0}, \ -} -MUX_I2S_SPDIF(audio0, 0); -MUX_I2S_SPDIF(audio1, 1); -MUX_I2S_SPDIF(audio2, 2); -MUX_I2S_SPDIF(audio3, 3); -MUX_I2S_SPDIF(audio4, 4); -MUX_I2S_SPDIF(audio, 5); /* SPDIF */ - -/* External clock outputs (through PMC) */ -#define MUX_EXTERN_OUT(_id) \ -static struct clk_mux_sel mux_clkm_clkm2_clkm4_extern##_id[] = { \ - {.input = &tegra_clk_m, .value = 0}, \ - {.input = &tegra_clk_m_div2, .value = 1}, \ - {.input = &tegra_clk_m_div4, .value = 2}, \ - {.input = NULL, .value = 3}, /* placeholder */ \ - { 0, 0}, \ -} -MUX_EXTERN_OUT(1); -MUX_EXTERN_OUT(2); -MUX_EXTERN_OUT(3); - -static struct clk_mux_sel *mux_extern_out_list[] = { - mux_clkm_clkm2_clkm4_extern1, - mux_clkm_clkm2_clkm4_extern2, - mux_clkm_clkm2_clkm4_extern3, -}; + do { + reg = readl(reg_clk_base + + TEGRA30_CLK_RST_CONTROLLER_CPU_CMPLX_STATUS); + cpu_relax(); + } while (!(reg & (1 << cpu))); /* check CPU been reset or not */ -#define CLK_OUT_CLK(_id) \ - { \ - .name = "clk_out_" #_id, \ - .lookup = { \ - .dev_id = "clk_out_" #_id, \ - .con_id = "extern" #_id, \ - }, \ - .ops = &tegra_clk_out_ops, \ - .reg = 0x1a8, \ - .inputs = mux_clkm_clkm2_clkm4_extern##_id, \ - .flags = MUX_CLK_OUT, \ - .max_rate = 216000000, \ - .u.periph = { \ - .clk_num = (_id - 1) * 8 + 2, \ - }, \ - } -static struct clk tegra_clk_out_list[] = { - CLK_OUT_CLK(1), - CLK_OUT_CLK(2), - CLK_OUT_CLK(3), -}; + return; +} -/* called after peripheral external clocks are initialized */ -static void init_clk_out_mux(void) +static void tegra30_put_cpu_in_reset(u32 cpu) { - int i; - struct clk *c; - - /* output clock con_id is the name of peripheral - external clock connected to input 3 of the output mux */ - for (i = 0; i < ARRAY_SIZE(tegra_clk_out_list); i++) { - c = tegra_get_clock_by_name( - tegra_clk_out_list[i].lookup.con_id); - if (!c) - pr_err("%s: could not find clk %s\n", __func__, - tegra_clk_out_list[i].lookup.con_id); - mux_extern_out_list[i][3].input = c; - } + writel(CPU_RESET(cpu), + reg_clk_base + TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET); + dmb(); } -/* Peripheral muxes */ -static struct clk_mux_sel mux_sclk[] = { - { .input = &tegra_clk_m, .value = 0}, - { .input = &tegra_pll_c_out1, .value = 1}, - { .input = &tegra_pll_p_out4, .value = 2}, - { .input = &tegra_pll_p_out3, .value = 3}, - { .input = &tegra_pll_p_out2, .value = 4}, - /* { .input = &tegra_clk_d, .value = 5}, - no use on tegra30 */ - { .input = &tegra_clk_32k, .value = 6}, - { .input = &tegra_pll_m_out1, .value = 7}, - { 0, 0}, -}; - -static struct clk tegra_clk_sclk = { - .name = "sclk", - .inputs = mux_sclk, - .reg = 0x28, - .ops = &tegra_super_ops, - .max_rate = 334000000, - .min_rate = 40000000, -}; - -static struct clk tegra_clk_blink = { - .name = "blink", - .parent = &tegra_clk_32k, - .reg = 0x40, - .ops = &tegra_blink_clk_ops, - .max_rate = 32768, -}; - -static struct clk_mux_sel mux_pllm_pllc_pllp_plla[] = { - { .input = &tegra_pll_m, .value = 0}, - { .input = &tegra_pll_c, .value = 1}, - { .input = &tegra_pll_p, .value = 2}, - { .input = &tegra_pll_a_out0, .value = 3}, - { 0, 0}, -}; - -static struct clk_mux_sel mux_pllp_pllc_pllm_clkm[] = { - { .input = &tegra_pll_p, .value = 0}, - { .input = &tegra_pll_c, .value = 1}, - { .input = &tegra_pll_m, .value = 2}, - { .input = &tegra_clk_m, .value = 3}, - { 0, 0}, -}; - -static struct clk_mux_sel mux_pllp_clkm[] = { - { .input = &tegra_pll_p, .value = 0}, - { .input = &tegra_clk_m, .value = 3}, - { 0, 0}, -}; - -static struct clk_mux_sel mux_pllp_plld_pllc_clkm[] = { - {.input = &tegra_pll_p, .value = 0}, - {.input = &tegra_pll_d_out0, .value = 1}, - {.input = &tegra_pll_c, .value = 2}, - {.input = &tegra_clk_m, .value = 3}, - { 0, 0}, -}; - -static struct clk_mux_sel mux_pllp_pllm_plld_plla_pllc_plld2_clkm[] = { - {.input = &tegra_pll_p, .value = 0}, - {.input = &tegra_pll_m, .value = 1}, - {.input = &tegra_pll_d_out0, .value = 2}, - {.input = &tegra_pll_a_out0, .value = 3}, - {.input = &tegra_pll_c, .value = 4}, - {.input = &tegra_pll_d2_out0, .value = 5}, - {.input = &tegra_clk_m, .value = 6}, - { 0, 0}, -}; - -static struct clk_mux_sel mux_plla_pllc_pllp_clkm[] = { - { .input = &tegra_pll_a_out0, .value = 0}, - /* { .input = &tegra_pll_c, .value = 1}, no use on tegra30 */ - { .input = &tegra_pll_p, .value = 2}, - { .input = &tegra_clk_m, .value = 3}, - { 0, 0}, -}; - -static struct clk_mux_sel mux_pllp_pllc_clk32_clkm[] = { - {.input = &tegra_pll_p, .value = 0}, - {.input = &tegra_pll_c, .value = 1}, - {.input = &tegra_clk_32k, .value = 2}, - {.input = &tegra_clk_m, .value = 3}, - { 0, 0}, -}; - -static struct clk_mux_sel mux_pllp_pllc_clkm_clk32[] = { - {.input = &tegra_pll_p, .value = 0}, - {.input = &tegra_pll_c, .value = 1}, - {.input = &tegra_clk_m, .value = 2}, - {.input = &tegra_clk_32k, .value = 3}, - { 0, 0}, -}; - -static struct clk_mux_sel mux_pllp_pllc_pllm[] = { - {.input = &tegra_pll_p, .value = 0}, - {.input = &tegra_pll_c, .value = 1}, - {.input = &tegra_pll_m, .value = 2}, - { 0, 0}, -}; - -static struct clk_mux_sel mux_clk_m[] = { - { .input = &tegra_clk_m, .value = 0}, - { 0, 0}, -}; - -static struct clk_mux_sel mux_pllp_out3[] = { - { .input = &tegra_pll_p_out3, .value = 0}, - { 0, 0}, -}; - -static struct clk_mux_sel mux_plld_out0[] = { - { .input = &tegra_pll_d_out0, .value = 0}, - { 0, 0}, -}; - -static struct clk_mux_sel mux_plld_out0_plld2_out0[] = { - { .input = &tegra_pll_d_out0, .value = 0}, - { .input = &tegra_pll_d2_out0, .value = 1}, - { 0, 0}, -}; - -static struct clk_mux_sel mux_clk_32k[] = { - { .input = &tegra_clk_32k, .value = 0}, - { 0, 0}, -}; - -static struct clk_mux_sel mux_plla_clk32_pllp_clkm_plle[] = { - { .input = &tegra_pll_a_out0, .value = 0}, - { .input = &tegra_clk_32k, .value = 1}, - { .input = &tegra_pll_p, .value = 2}, - { .input = &tegra_clk_m, .value = 3}, - { .input = &tegra_pll_e, .value = 4}, - { 0, 0}, -}; - -static struct clk_mux_sel mux_cclk_g[] = { - { .input = &tegra_clk_m, .value = 0}, - { .input = &tegra_pll_c, .value = 1}, - { .input = &tegra_clk_32k, .value = 2}, - { .input = &tegra_pll_m, .value = 3}, - { .input = &tegra_pll_p, .value = 4}, - { .input = &tegra_pll_p_out4, .value = 5}, - { .input = &tegra_pll_p_out3, .value = 6}, - { .input = &tegra_pll_x, .value = 8}, - { 0, 0}, -}; - -static struct clk tegra_clk_cclk_g = { - .name = "cclk_g", - .flags = DIV_U71 | DIV_U71_INT, - .inputs = mux_cclk_g, - .reg = 0x368, - .ops = &tegra_super_ops, - .max_rate = 1700000000, -}; - -static struct clk tegra30_clk_twd = { - .parent = &tegra_clk_cclk_g, - .name = "twd", - .ops = &tegra30_twd_ops, - .max_rate = 1400000000, /* Same as tegra_clk_cpu_cmplx.max_rate */ - .mul = 1, - .div = 2, -}; - -#define PERIPH_CLK(_name, _dev, _con, _clk_num, _reg, _max, _inputs, _flags) \ - { \ - .name = _name, \ - .lookup = { \ - .dev_id = _dev, \ - .con_id = _con, \ - }, \ - .ops = &tegra_periph_clk_ops, \ - .reg = _reg, \ - .inputs = _inputs, \ - .flags = _flags, \ - .max_rate = _max, \ - .u.periph = { \ - .clk_num = _clk_num, \ - }, \ - } - -#define PERIPH_CLK_EX(_name, _dev, _con, _clk_num, _reg, _max, _inputs, \ - _flags, _ops) \ - { \ - .name = _name, \ - .lookup = { \ - .dev_id = _dev, \ - .con_id = _con, \ - }, \ - .ops = _ops, \ - .reg = _reg, \ - .inputs = _inputs, \ - .flags = _flags, \ - .max_rate = _max, \ - .u.periph = { \ - .clk_num = _clk_num, \ - }, \ - } - -#define SHARED_CLK(_name, _dev, _con, _parent, _id, _div, _mode)\ - { \ - .name = _name, \ - .lookup = { \ - .dev_id = _dev, \ - .con_id = _con, \ - }, \ - .ops = &tegra_clk_shared_bus_ops, \ - .parent = _parent, \ - .u.shared_bus_user = { \ - .client_id = _id, \ - .client_div = _div, \ - .mode = _mode, \ - }, \ - } -struct clk tegra_list_clks[] = { - PERIPH_CLK("apbdma", "tegra-apbdma", NULL, 34, 0, 26000000, mux_clk_m, 0), - PERIPH_CLK("rtc", "rtc-tegra", NULL, 4, 0, 32768, mux_clk_32k, PERIPH_NO_RESET | PERIPH_ON_APB), - PERIPH_CLK("kbc", "tegra-kbc", NULL, 36, 0, 32768, mux_clk_32k, PERIPH_NO_RESET | PERIPH_ON_APB), - PERIPH_CLK("timer", "timer", NULL, 5, 0, 26000000, mux_clk_m, 0), - PERIPH_CLK("kfuse", "kfuse-tegra", NULL, 40, 0, 26000000, mux_clk_m, 0), - PERIPH_CLK("fuse", "fuse-tegra", "fuse", 39, 0, 26000000, mux_clk_m, PERIPH_ON_APB), - PERIPH_CLK("fuse_burn", "fuse-tegra", "fuse_burn", 39, 0, 26000000, mux_clk_m, PERIPH_ON_APB), - PERIPH_CLK("apbif", "tegra30-ahub", "apbif", 107, 0, 26000000, mux_clk_m, 0), - PERIPH_CLK("i2s0", "tegra30-i2s.0", NULL, 30, 0x1d8, 26000000, mux_pllaout0_audio0_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB), - PERIPH_CLK("i2s1", "tegra30-i2s.1", NULL, 11, 0x100, 26000000, mux_pllaout0_audio1_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB), - PERIPH_CLK("i2s2", "tegra30-i2s.2", NULL, 18, 0x104, 26000000, mux_pllaout0_audio2_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB), - PERIPH_CLK("i2s3", "tegra30-i2s.3", NULL, 101, 0x3bc, 26000000, mux_pllaout0_audio3_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB), - PERIPH_CLK("i2s4", "tegra30-i2s.4", NULL, 102, 0x3c0, 26000000, mux_pllaout0_audio4_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB), - PERIPH_CLK("spdif_out", "tegra30-spdif", "spdif_out", 10, 0x108, 100000000, mux_pllaout0_audio_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB), - PERIPH_CLK("spdif_in", "tegra30-spdif", "spdif_in", 10, 0x10c, 100000000, mux_pllp_pllc_pllm, MUX | DIV_U71 | PERIPH_ON_APB), - PERIPH_CLK("pwm", "tegra-pwm", NULL, 17, 0x110, 432000000, mux_pllp_pllc_clk32_clkm, MUX | MUX_PWM | DIV_U71 | PERIPH_ON_APB), - PERIPH_CLK("d_audio", "tegra30-ahub", "d_audio", 106, 0x3d0, 48000000, mux_plla_pllc_pllp_clkm, MUX | DIV_U71), - PERIPH_CLK("dam0", "tegra30-dam.0", NULL, 108, 0x3d8, 48000000, mux_plla_pllc_pllp_clkm, MUX | DIV_U71), - PERIPH_CLK("dam1", "tegra30-dam.1", NULL, 109, 0x3dc, 48000000, mux_plla_pllc_pllp_clkm, MUX | DIV_U71), - PERIPH_CLK("dam2", "tegra30-dam.2", NULL, 110, 0x3e0, 48000000, mux_plla_pllc_pllp_clkm, MUX | DIV_U71), - PERIPH_CLK("hda", "tegra30-hda", "hda", 125, 0x428, 108000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), - PERIPH_CLK("hda2codec_2x", "tegra30-hda", "hda2codec", 111, 0x3e4, 48000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), - PERIPH_CLK("hda2hdmi", "tegra30-hda", "hda2hdmi", 128, 0, 48000000, mux_clk_m, 0), - PERIPH_CLK("sbc1", "spi_tegra.0", NULL, 41, 0x134, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB), - PERIPH_CLK("sbc2", "spi_tegra.1", NULL, 44, 0x118, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB), - PERIPH_CLK("sbc3", "spi_tegra.2", NULL, 46, 0x11c, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB), - PERIPH_CLK("sbc4", "spi_tegra.3", NULL, 68, 0x1b4, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB), - PERIPH_CLK("sbc5", "spi_tegra.4", NULL, 104, 0x3c8, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB), - PERIPH_CLK("sbc6", "spi_tegra.5", NULL, 105, 0x3cc, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB), - PERIPH_CLK("sata_oob", "tegra_sata_oob", NULL, 123, 0x420, 216000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), - PERIPH_CLK("sata", "tegra_sata", NULL, 124, 0x424, 216000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), - PERIPH_CLK("sata_cold", "tegra_sata_cold", NULL, 129, 0, 48000000, mux_clk_m, 0), - PERIPH_CLK_EX("ndflash", "tegra_nand", NULL, 13, 0x160, 240000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71, &tegra_nand_clk_ops), - PERIPH_CLK("ndspeed", "tegra_nand_speed", NULL, 80, 0x3f8, 240000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), - PERIPH_CLK("vfir", "vfir", NULL, 7, 0x168, 72000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB), - PERIPH_CLK("sdmmc1", "sdhci-tegra.0", NULL, 14, 0x150, 208000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* scales with voltage */ - PERIPH_CLK("sdmmc2", "sdhci-tegra.1", NULL, 9, 0x154, 104000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* scales with voltage */ - PERIPH_CLK("sdmmc3", "sdhci-tegra.2", NULL, 69, 0x1bc, 208000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* scales with voltage */ - PERIPH_CLK("sdmmc4", "sdhci-tegra.3", NULL, 15, 0x164, 104000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* scales with voltage */ - PERIPH_CLK("vcp", "tegra-avp", "vcp", 29, 0, 250000000, mux_clk_m, 0), - PERIPH_CLK("bsea", "tegra-avp", "bsea", 62, 0, 250000000, mux_clk_m, 0), - PERIPH_CLK("bsev", "tegra-aes", "bsev", 63, 0, 250000000, mux_clk_m, 0), - PERIPH_CLK("vde", "vde", NULL, 61, 0x1c8, 520000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_INT), - PERIPH_CLK("csite", "csite", NULL, 73, 0x1d4, 144000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* max rate ??? */ - PERIPH_CLK("la", "la", NULL, 76, 0x1f8, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), - PERIPH_CLK("owr", "tegra_w1", NULL, 71, 0x1cc, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB), - PERIPH_CLK("nor", "nor", NULL, 42, 0x1d0, 127000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71), /* requires min voltage */ - PERIPH_CLK("mipi", "mipi", NULL, 50, 0x174, 60000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB), /* scales with voltage */ - PERIPH_CLK("i2c1", "tegra-i2c.0", NULL, 12, 0x124, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB), - PERIPH_CLK("i2c2", "tegra-i2c.1", NULL, 54, 0x198, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB), - PERIPH_CLK("i2c3", "tegra-i2c.2", NULL, 67, 0x1b8, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB), - PERIPH_CLK("i2c4", "tegra-i2c.3", NULL, 103, 0x3c4, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB), - PERIPH_CLK("i2c5", "tegra-i2c.4", NULL, 47, 0x128, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB), - PERIPH_CLK("uarta", "tegra-uart.0", NULL, 6, 0x178, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB), - PERIPH_CLK("uartb", "tegra-uart.1", NULL, 7, 0x17c, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB), - PERIPH_CLK("uartc", "tegra-uart.2", NULL, 55, 0x1a0, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB), - PERIPH_CLK("uartd", "tegra-uart.3", NULL, 65, 0x1c0, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB), - PERIPH_CLK("uarte", "tegra-uart.4", NULL, 66, 0x1c4, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB), - PERIPH_CLK_EX("vi", "tegra_camera", "vi", 20, 0x148, 425000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT, &tegra_vi_clk_ops), - PERIPH_CLK("3d", "3d", NULL, 24, 0x158, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT | DIV_U71_IDLE | PERIPH_MANUAL_RESET), - PERIPH_CLK("3d2", "3d2", NULL, 98, 0x3b0, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT | DIV_U71_IDLE | PERIPH_MANUAL_RESET), - PERIPH_CLK("2d", "2d", NULL, 21, 0x15c, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT | DIV_U71_IDLE), - PERIPH_CLK("vi_sensor", "tegra_camera", "vi_sensor", 20, 0x1a8, 150000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | PERIPH_NO_RESET), - PERIPH_CLK("epp", "epp", NULL, 19, 0x16c, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT), - PERIPH_CLK("mpe", "mpe", NULL, 60, 0x170, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT), - PERIPH_CLK("host1x", "host1x", NULL, 28, 0x180, 260000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT), - PERIPH_CLK("cve", "cve", NULL, 49, 0x140, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71), /* requires min voltage */ - PERIPH_CLK("tvo", "tvo", NULL, 49, 0x188, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71), /* requires min voltage */ - PERIPH_CLK_EX("dtv", "dtv", NULL, 79, 0x1dc, 250000000, mux_clk_m, 0, &tegra_dtv_clk_ops), - PERIPH_CLK("hdmi", "hdmi", NULL, 51, 0x18c, 148500000, mux_pllp_pllm_plld_plla_pllc_plld2_clkm, MUX | MUX8 | DIV_U71), - PERIPH_CLK("tvdac", "tvdac", NULL, 53, 0x194, 220000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71), /* requires min voltage */ - PERIPH_CLK("disp1", "tegradc.0", NULL, 27, 0x138, 600000000, mux_pllp_pllm_plld_plla_pllc_plld2_clkm, MUX | MUX8), - PERIPH_CLK("disp2", "tegradc.1", NULL, 26, 0x13c, 600000000, mux_pllp_pllm_plld_plla_pllc_plld2_clkm, MUX | MUX8), - PERIPH_CLK("usbd", "fsl-tegra-udc", NULL, 22, 0, 480000000, mux_clk_m, 0), /* requires min voltage */ - PERIPH_CLK("usb2", "tegra-ehci.1", NULL, 58, 0, 480000000, mux_clk_m, 0), /* requires min voltage */ - PERIPH_CLK("usb3", "tegra-ehci.2", NULL, 59, 0, 480000000, mux_clk_m, 0), /* requires min voltage */ - PERIPH_CLK("dsia", "tegradc.0", "dsia", 48, 0, 500000000, mux_plld_out0, 0), - PERIPH_CLK_EX("dsib", "tegradc.1", "dsib", 82, 0xd0, 500000000, mux_plld_out0_plld2_out0, MUX | PLLD, &tegra_dsib_clk_ops), - PERIPH_CLK("csi", "tegra_camera", "csi", 52, 0, 102000000, mux_pllp_out3, 0), - PERIPH_CLK("isp", "tegra_camera", "isp", 23, 0, 150000000, mux_clk_m, 0), /* same frequency as VI */ - PERIPH_CLK("csus", "tegra_camera", "csus", 92, 0, 150000000, mux_clk_m, PERIPH_NO_RESET), - - PERIPH_CLK("tsensor", "tegra-tsensor", NULL, 100, 0x3b8, 216000000, mux_pllp_pllc_clkm_clk32, MUX | DIV_U71), - PERIPH_CLK("actmon", "actmon", NULL, 119, 0x3e8, 216000000, mux_pllp_pllc_clk32_clkm, MUX | DIV_U71), - PERIPH_CLK("extern1", "extern1", NULL, 120, 0x3ec, 216000000, mux_plla_clk32_pllp_clkm_plle, MUX | MUX8 | DIV_U71), - PERIPH_CLK("extern2", "extern2", NULL, 121, 0x3f0, 216000000, mux_plla_clk32_pllp_clkm_plle, MUX | MUX8 | DIV_U71), - PERIPH_CLK("extern3", "extern3", NULL, 122, 0x3f4, 216000000, mux_plla_clk32_pllp_clkm_plle, MUX | MUX8 | DIV_U71), - PERIPH_CLK("i2cslow", "i2cslow", NULL, 81, 0x3fc, 26000000, mux_pllp_pllc_clk32_clkm, MUX | DIV_U71 | PERIPH_ON_APB), - PERIPH_CLK("pcie", "tegra-pcie", "pcie", 70, 0, 250000000, mux_clk_m, 0), - PERIPH_CLK("afi", "tegra-pcie", "afi", 72, 0, 250000000, mux_clk_m, 0), - PERIPH_CLK("se", "se", NULL, 127, 0x42c, 520000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_INT), -}; - -#define CLK_DUPLICATE(_name, _dev, _con) \ - { \ - .name = _name, \ - .lookup = { \ - .dev_id = _dev, \ - .con_id = _con, \ - }, \ - } - -/* Some clocks may be used by different drivers depending on the board - * configuration. List those here to register them twice in the clock lookup - * table under two names. - */ -struct clk_duplicate tegra_clk_duplicates[] = { - CLK_DUPLICATE("uarta", "serial8250.0", NULL), - CLK_DUPLICATE("uartb", "serial8250.1", NULL), - CLK_DUPLICATE("uartc", "serial8250.2", NULL), - CLK_DUPLICATE("uartd", "serial8250.3", NULL), - CLK_DUPLICATE("uarte", "serial8250.4", NULL), - CLK_DUPLICATE("usbd", "utmip-pad", NULL), - CLK_DUPLICATE("usbd", "tegra-ehci.0", NULL), - CLK_DUPLICATE("usbd", "tegra-otg", NULL), - CLK_DUPLICATE("hdmi", "tegradc.0", "hdmi"), - CLK_DUPLICATE("hdmi", "tegradc.1", "hdmi"), - CLK_DUPLICATE("dsib", "tegradc.0", "dsib"), - CLK_DUPLICATE("dsia", "tegradc.1", "dsia"), - CLK_DUPLICATE("bsev", "tegra-avp", "bsev"), - CLK_DUPLICATE("bsev", "nvavp", "bsev"), - CLK_DUPLICATE("vde", "tegra-aes", "vde"), - CLK_DUPLICATE("bsea", "tegra-aes", "bsea"), - CLK_DUPLICATE("bsea", "nvavp", "bsea"), - CLK_DUPLICATE("cml1", "tegra_sata_cml", NULL), - CLK_DUPLICATE("cml0", "tegra_pcie", "cml"), - CLK_DUPLICATE("pciex", "tegra_pcie", "pciex"), - CLK_DUPLICATE("i2c1", "tegra-i2c-slave.0", NULL), - CLK_DUPLICATE("i2c2", "tegra-i2c-slave.1", NULL), - CLK_DUPLICATE("i2c3", "tegra-i2c-slave.2", NULL), - CLK_DUPLICATE("i2c4", "tegra-i2c-slave.3", NULL), - CLK_DUPLICATE("i2c5", "tegra-i2c-slave.4", NULL), - CLK_DUPLICATE("sbc1", "spi_slave_tegra.0", NULL), - CLK_DUPLICATE("sbc2", "spi_slave_tegra.1", NULL), - CLK_DUPLICATE("sbc3", "spi_slave_tegra.2", NULL), - CLK_DUPLICATE("sbc4", "spi_slave_tegra.3", NULL), - CLK_DUPLICATE("sbc5", "spi_slave_tegra.4", NULL), - CLK_DUPLICATE("sbc6", "spi_slave_tegra.5", NULL), - CLK_DUPLICATE("twd", "smp_twd", NULL), - CLK_DUPLICATE("vcp", "nvavp", "vcp"), - CLK_DUPLICATE("i2s0", NULL, "i2s0"), - CLK_DUPLICATE("i2s1", NULL, "i2s1"), - CLK_DUPLICATE("i2s2", NULL, "i2s2"), - CLK_DUPLICATE("i2s3", NULL, "i2s3"), - CLK_DUPLICATE("i2s4", NULL, "i2s4"), - CLK_DUPLICATE("dam0", NULL, "dam0"), - CLK_DUPLICATE("dam1", NULL, "dam1"), - CLK_DUPLICATE("dam2", NULL, "dam2"), - CLK_DUPLICATE("spdif_in", NULL, "spdif_in"), -}; - -struct clk *tegra_ptr_clks[] = { - &tegra_clk_32k, - &tegra_clk_m, - &tegra_clk_m_div2, - &tegra_clk_m_div4, - &tegra_pll_ref, - &tegra_pll_m, - &tegra_pll_m_out1, - &tegra_pll_c, - &tegra_pll_c_out1, - &tegra_pll_p, - &tegra_pll_p_out1, - &tegra_pll_p_out2, - &tegra_pll_p_out3, - &tegra_pll_p_out4, - &tegra_pll_a, - &tegra_pll_a_out0, - &tegra_pll_d, - &tegra_pll_d_out0, - &tegra_pll_d2, - &tegra_pll_d2_out0, - &tegra_pll_u, - &tegra_pll_x, - &tegra_pll_x_out0, - &tegra_pll_e, - &tegra_clk_cclk_g, - &tegra_cml0_clk, - &tegra_cml1_clk, - &tegra_pciex_clk, - &tegra_clk_sclk, - &tegra_clk_blink, - &tegra30_clk_twd, -}; - - -static void tegra30_init_one_clock(struct clk *c) +static void tegra30_cpu_out_of_reset(u32 cpu) { - clk_init(c); - INIT_LIST_HEAD(&c->shared_bus_list); - if (!c->lookup.dev_id && !c->lookup.con_id) - c->lookup.con_id = c->name; - c->lookup.clk = c; - clkdev_add(&c->lookup); + writel(CPU_RESET(cpu), + reg_clk_base + TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_CLR); + wmb(); } -void __init tegra30_init_clocks(void) +static void tegra30_enable_cpu_clock(u32 cpu) { - int i; - struct clk *c; + unsigned int reg; - for (i = 0; i < ARRAY_SIZE(tegra_ptr_clks); i++) - tegra30_init_one_clock(tegra_ptr_clks[i]); - - for (i = 0; i < ARRAY_SIZE(tegra_list_clks); i++) - tegra30_init_one_clock(&tegra_list_clks[i]); + writel(CPU_CLOCK(cpu), + reg_clk_base + TEGRA30_CLK_RST_CONTROLLER_CLK_CPU_CMPLX_CLR); + reg = readl(reg_clk_base + + TEGRA30_CLK_RST_CONTROLLER_CLK_CPU_CMPLX_CLR); +} - for (i = 0; i < ARRAY_SIZE(tegra_clk_duplicates); i++) { - c = tegra_get_clock_by_name(tegra_clk_duplicates[i].name); - if (!c) { - pr_err("%s: Unknown duplicate clock %s\n", __func__, - tegra_clk_duplicates[i].name); - continue; - } +static void tegra30_disable_cpu_clock(u32 cpu) +{ - tegra_clk_duplicates[i].lookup.clk = c; - clkdev_add(&tegra_clk_duplicates[i].lookup); - } + unsigned int reg; - for (i = 0; i < ARRAY_SIZE(tegra_sync_source_list); i++) - tegra30_init_one_clock(&tegra_sync_source_list[i]); - for (i = 0; i < ARRAY_SIZE(tegra_clk_audio_list); i++) - tegra30_init_one_clock(&tegra_clk_audio_list[i]); - for (i = 0; i < ARRAY_SIZE(tegra_clk_audio_2x_list); i++) - tegra30_init_one_clock(&tegra_clk_audio_2x_list[i]); + reg = readl(reg_clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX); + writel(reg | CPU_CLOCK(cpu), + reg_clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX); +} - init_clk_out_mux(); - for (i = 0; i < ARRAY_SIZE(tegra_clk_out_list); i++) - tegra30_init_one_clock(&tegra_clk_out_list[i]); +static struct tegra_cpu_car_ops tegra30_cpu_car_ops = { + .wait_for_reset = tegra30_wait_cpu_in_reset, + .put_in_reset = tegra30_put_cpu_in_reset, + .out_of_reset = tegra30_cpu_out_of_reset, + .enable_clock = tegra30_enable_cpu_clock, + .disable_clock = tegra30_disable_cpu_clock, +}; +void __init tegra30_cpu_car_ops_init(void) +{ + tegra_cpu_car_ops = &tegra30_cpu_car_ops; } diff --git a/arch/arm/mach-tegra/tegra30_clocks.h b/arch/arm/mach-tegra/tegra30_clocks.h new file mode 100644 index 000000000000..f2f88fef6b8b --- /dev/null +++ b/arch/arm/mach-tegra/tegra30_clocks.h @@ -0,0 +1,53 @@ +/* + * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef __MACH_TEGRA30_CLOCK_H +#define __MACH_TEGRA30_CLOCK_H + +extern struct clk_ops tegra30_clk_32k_ops; +extern struct clk_ops tegra30_clk_m_ops; +extern struct clk_ops tegra_clk_m_div_ops; +extern struct clk_ops tegra_pll_ref_ops; +extern struct clk_ops tegra30_pll_ops; +extern struct clk_ops tegra30_pll_div_ops; +extern struct clk_ops tegra_plld_ops; +extern struct clk_ops tegra30_plle_ops; +extern struct clk_ops tegra_cml_clk_ops; +extern struct clk_ops tegra_pciex_clk_ops; +extern struct clk_ops tegra_sync_source_ops; +extern struct clk_ops tegra30_audio_sync_clk_ops; +extern struct clk_ops tegra30_clk_double_ops; +extern struct clk_ops tegra_clk_out_ops; +extern struct clk_ops tegra30_super_ops; +extern struct clk_ops tegra30_blink_clk_ops; +extern struct clk_ops tegra30_twd_ops; +extern struct clk_ops tegra30_periph_clk_ops; +extern struct clk_ops tegra30_dsib_clk_ops; +extern struct clk_ops tegra_nand_clk_ops; +extern struct clk_ops tegra_vi_clk_ops; +extern struct clk_ops tegra_dtv_clk_ops; +extern struct clk_ops tegra_clk_shared_bus_ops; + +int tegra30_plld_clk_cfg_ex(struct clk_hw *hw, + enum tegra_clk_ex_param p, u32 setting); +void tegra30_periph_clk_reset(struct clk_hw *hw, bool assert); +int tegra30_vi_clk_cfg_ex(struct clk_hw *hw, + enum tegra_clk_ex_param p, u32 setting); +int tegra30_nand_clk_cfg_ex(struct clk_hw *hw, + enum tegra_clk_ex_param p, u32 setting); +int tegra30_dtv_clk_cfg_ex(struct clk_hw *hw, + enum tegra_clk_ex_param p, u32 setting); +#endif diff --git a/arch/arm/mach-tegra/tegra30_clocks_data.c b/arch/arm/mach-tegra/tegra30_clocks_data.c new file mode 100644 index 000000000000..c10449603df0 --- /dev/null +++ b/arch/arm/mach-tegra/tegra30_clocks_data.c @@ -0,0 +1,1372 @@ +/* + * arch/arm/mach-tegra/tegra30_clocks.c + * + * Copyright (c) 2010-2012 NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#include <linux/clk-private.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/list.h> +#include <linux/spinlock.h> +#include <linux/delay.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/clk.h> +#include <linux/cpufreq.h> + +#include "clock.h" +#include "fuse.h" +#include "tegra30_clocks.h" +#include "tegra_cpu_car.h" + +#define DEFINE_CLK_TEGRA(_name, _rate, _ops, _flags, \ + _parent_names, _parents, _parent) \ + static struct clk tegra_##_name = { \ + .hw = &tegra_##_name##_hw.hw, \ + .name = #_name, \ + .rate = _rate, \ + .ops = _ops, \ + .flags = _flags, \ + .parent_names = _parent_names, \ + .parents = _parents, \ + .num_parents = ARRAY_SIZE(_parent_names), \ + .parent = _parent, \ + }; + +static struct clk tegra_clk_32k; +static struct clk_tegra tegra_clk_32k_hw = { + .hw = { + .clk = &tegra_clk_32k, + }, + .fixed_rate = 32768, +}; +static struct clk tegra_clk_32k = { + .name = "clk_32k", + .hw = &tegra_clk_32k_hw.hw, + .ops = &tegra30_clk_32k_ops, + .flags = CLK_IS_ROOT, +}; + +static struct clk tegra_clk_m; +static struct clk_tegra tegra_clk_m_hw = { + .hw = { + .clk = &tegra_clk_m, + }, + .flags = ENABLE_ON_INIT, + .reg = 0x1fc, + .reg_shift = 28, + .max_rate = 48000000, +}; +static struct clk tegra_clk_m = { + .name = "clk_m", + .hw = &tegra_clk_m_hw.hw, + .ops = &tegra30_clk_m_ops, + .flags = CLK_IS_ROOT | CLK_IGNORE_UNUSED, +}; + +static const char *clk_m_div_parent_names[] = { + "clk_m", +}; + +static struct clk *clk_m_div_parents[] = { + &tegra_clk_m, +}; + +static struct clk tegra_clk_m_div2; +static struct clk_tegra tegra_clk_m_div2_hw = { + .hw = { + .clk = &tegra_clk_m_div2, + }, + .mul = 1, + .div = 2, + .max_rate = 24000000, +}; +DEFINE_CLK_TEGRA(clk_m_div2, 0, &tegra_clk_m_div_ops, 0, + clk_m_div_parent_names, clk_m_div_parents, &tegra_clk_m); + +static struct clk tegra_clk_m_div4; +static struct clk_tegra tegra_clk_m_div4_hw = { + .hw = { + .clk = &tegra_clk_m_div4, + }, + .mul = 1, + .div = 4, + .max_rate = 12000000, +}; +DEFINE_CLK_TEGRA(clk_m_div4, 0, &tegra_clk_m_div_ops, 0, + clk_m_div_parent_names, clk_m_div_parents, &tegra_clk_m); + +static struct clk tegra_pll_ref; +static struct clk_tegra tegra_pll_ref_hw = { + .hw = { + .clk = &tegra_pll_ref, + }, + .flags = ENABLE_ON_INIT, + .max_rate = 26000000, +}; +DEFINE_CLK_TEGRA(pll_ref, 0, &tegra_pll_ref_ops, 0, clk_m_div_parent_names, + clk_m_div_parents, &tegra_clk_m); + +#define DEFINE_PLL(_name, _flags, _reg, _max_rate, _input_min, \ + _input_max, _cf_min, _cf_max, _vco_min, \ + _vco_max, _freq_table, _lock_delay, _ops, \ + _fixed_rate, _clk_cfg_ex, _parent) \ + static struct clk tegra_##_name; \ + static const char *_name##_parent_names[] = { \ + #_parent, \ + }; \ + static struct clk *_name##_parents[] = { \ + &tegra_##_parent, \ + }; \ + static struct clk_tegra tegra_##_name##_hw = { \ + .hw = { \ + .clk = &tegra_##_name, \ + }, \ + .flags = _flags, \ + .reg = _reg, \ + .max_rate = _max_rate, \ + .u.pll = { \ + .input_min = _input_min, \ + .input_max = _input_max, \ + .cf_min = _cf_min, \ + .cf_max = _cf_max, \ + .vco_min = _vco_min, \ + .vco_max = _vco_max, \ + .freq_table = _freq_table, \ + .lock_delay = _lock_delay, \ + .fixed_rate = _fixed_rate, \ + }, \ + .clk_cfg_ex = _clk_cfg_ex, \ + }; \ + DEFINE_CLK_TEGRA(_name, 0, &_ops, CLK_IGNORE_UNUSED, \ + _name##_parent_names, _name##_parents, \ + &tegra_##_parent); + +#define DEFINE_PLL_OUT(_name, _flags, _reg, _reg_shift, \ + _max_rate, _ops, _parent, _clk_flags) \ + static const char *_name##_parent_names[] = { \ + #_parent, \ + }; \ + static struct clk *_name##_parents[] = { \ + &tegra_##_parent, \ + }; \ + static struct clk tegra_##_name; \ + static struct clk_tegra tegra_##_name##_hw = { \ + .hw = { \ + .clk = &tegra_##_name, \ + }, \ + .flags = _flags, \ + .reg = _reg, \ + .max_rate = _max_rate, \ + .reg_shift = _reg_shift, \ + }; \ + DEFINE_CLK_TEGRA(_name, 0, &tegra30_pll_div_ops, \ + _clk_flags, _name##_parent_names, \ + _name##_parents, &tegra_##_parent); + +static struct clk_pll_freq_table tegra_pll_c_freq_table[] = { + { 12000000, 1040000000, 520, 6, 1, 8}, + { 13000000, 1040000000, 480, 6, 1, 8}, + { 16800000, 1040000000, 495, 8, 1, 8}, /* actual: 1039.5 MHz */ + { 19200000, 1040000000, 325, 6, 1, 6}, + { 26000000, 1040000000, 520, 13, 1, 8}, + + { 12000000, 832000000, 416, 6, 1, 8}, + { 13000000, 832000000, 832, 13, 1, 8}, + { 16800000, 832000000, 396, 8, 1, 8}, /* actual: 831.6 MHz */ + { 19200000, 832000000, 260, 6, 1, 8}, + { 26000000, 832000000, 416, 13, 1, 8}, + + { 12000000, 624000000, 624, 12, 1, 8}, + { 13000000, 624000000, 624, 13, 1, 8}, + { 16800000, 600000000, 520, 14, 1, 8}, + { 19200000, 624000000, 520, 16, 1, 8}, + { 26000000, 624000000, 624, 26, 1, 8}, + + { 12000000, 600000000, 600, 12, 1, 8}, + { 13000000, 600000000, 600, 13, 1, 8}, + { 16800000, 600000000, 500, 14, 1, 8}, + { 19200000, 600000000, 375, 12, 1, 6}, + { 26000000, 600000000, 600, 26, 1, 8}, + + { 12000000, 520000000, 520, 12, 1, 8}, + { 13000000, 520000000, 520, 13, 1, 8}, + { 16800000, 520000000, 495, 16, 1, 8}, /* actual: 519.75 MHz */ + { 19200000, 520000000, 325, 12, 1, 6}, + { 26000000, 520000000, 520, 26, 1, 8}, + + { 12000000, 416000000, 416, 12, 1, 8}, + { 13000000, 416000000, 416, 13, 1, 8}, + { 16800000, 416000000, 396, 16, 1, 8}, /* actual: 415.8 MHz */ + { 19200000, 416000000, 260, 12, 1, 6}, + { 26000000, 416000000, 416, 26, 1, 8}, + { 0, 0, 0, 0, 0, 0 }, +}; + +DEFINE_PLL(pll_c, PLL_HAS_CPCON, 0x80, 1400000000, 2000000, 31000000, 1000000, + 6000000, 20000000, 1400000000, tegra_pll_c_freq_table, 300, + tegra30_pll_ops, 0, NULL, pll_ref); + +DEFINE_PLL_OUT(pll_c_out1, DIV_U71, 0x84, 0, 700000000, + tegra30_pll_div_ops, pll_c, CLK_IGNORE_UNUSED); + +static struct clk_pll_freq_table tegra_pll_m_freq_table[] = { + { 12000000, 666000000, 666, 12, 1, 8}, + { 13000000, 666000000, 666, 13, 1, 8}, + { 16800000, 666000000, 555, 14, 1, 8}, + { 19200000, 666000000, 555, 16, 1, 8}, + { 26000000, 666000000, 666, 26, 1, 8}, + { 12000000, 600000000, 600, 12, 1, 8}, + { 13000000, 600000000, 600, 13, 1, 8}, + { 16800000, 600000000, 500, 14, 1, 8}, + { 19200000, 600000000, 375, 12, 1, 6}, + { 26000000, 600000000, 600, 26, 1, 8}, + { 0, 0, 0, 0, 0, 0 }, +}; + +DEFINE_PLL(pll_m, PLL_HAS_CPCON | PLLM, 0x90, 800000000, 2000000, 31000000, + 1000000, 6000000, 20000000, 1200000000, tegra_pll_m_freq_table, + 300, tegra30_pll_ops, 0, NULL, pll_ref); + +DEFINE_PLL_OUT(pll_m_out1, DIV_U71, 0x94, 0, 600000000, + tegra30_pll_div_ops, pll_m, CLK_IGNORE_UNUSED); + +static struct clk_pll_freq_table tegra_pll_p_freq_table[] = { + { 12000000, 216000000, 432, 12, 2, 8}, + { 13000000, 216000000, 432, 13, 2, 8}, + { 16800000, 216000000, 360, 14, 2, 8}, + { 19200000, 216000000, 360, 16, 2, 8}, + { 26000000, 216000000, 432, 26, 2, 8}, + { 0, 0, 0, 0, 0, 0 }, +}; + +DEFINE_PLL(pll_p, ENABLE_ON_INIT | PLL_FIXED | PLL_HAS_CPCON, 0xa0, 432000000, + 2000000, 31000000, 1000000, 6000000, 20000000, 1400000000, + tegra_pll_p_freq_table, 300, tegra30_pll_ops, 408000000, NULL, + pll_ref); + +DEFINE_PLL_OUT(pll_p_out1, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa4, + 0, 432000000, tegra30_pll_div_ops, pll_p, CLK_IGNORE_UNUSED); +DEFINE_PLL_OUT(pll_p_out2, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa4, + 16, 432000000, tegra30_pll_div_ops, pll_p, CLK_IGNORE_UNUSED); +DEFINE_PLL_OUT(pll_p_out3, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa8, + 0, 432000000, tegra30_pll_div_ops, pll_p, CLK_IGNORE_UNUSED); +DEFINE_PLL_OUT(pll_p_out4, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa8, + 16, 432000000, tegra30_pll_div_ops, pll_p, CLK_IGNORE_UNUSED); + +static struct clk_pll_freq_table tegra_pll_a_freq_table[] = { + { 9600000, 564480000, 294, 5, 1, 4}, + { 9600000, 552960000, 288, 5, 1, 4}, + { 9600000, 24000000, 5, 2, 1, 1}, + + { 28800000, 56448000, 49, 25, 1, 1}, + { 28800000, 73728000, 64, 25, 1, 1}, + { 28800000, 24000000, 5, 6, 1, 1}, + { 0, 0, 0, 0, 0, 0 }, +}; + +DEFINE_PLL(pll_a, PLL_HAS_CPCON, 0xb0, 700000000, 2000000, 31000000, 1000000, + 6000000, 20000000, 1400000000, tegra_pll_a_freq_table, + 300, tegra30_pll_ops, 0, NULL, pll_p_out1); + +DEFINE_PLL_OUT(pll_a_out0, DIV_U71, 0xb4, 0, 100000000, tegra30_pll_div_ops, + pll_a, CLK_IGNORE_UNUSED); + +static struct clk_pll_freq_table tegra_pll_d_freq_table[] = { + { 12000000, 216000000, 216, 12, 1, 4}, + { 13000000, 216000000, 216, 13, 1, 4}, + { 16800000, 216000000, 180, 14, 1, 4}, + { 19200000, 216000000, 180, 16, 1, 4}, + { 26000000, 216000000, 216, 26, 1, 4}, + + { 12000000, 594000000, 594, 12, 1, 8}, + { 13000000, 594000000, 594, 13, 1, 8}, + { 16800000, 594000000, 495, 14, 1, 8}, + { 19200000, 594000000, 495, 16, 1, 8}, + { 26000000, 594000000, 594, 26, 1, 8}, + + { 12000000, 1000000000, 1000, 12, 1, 12}, + { 13000000, 1000000000, 1000, 13, 1, 12}, + { 19200000, 1000000000, 625, 12, 1, 8}, + { 26000000, 1000000000, 1000, 26, 1, 12}, + + { 0, 0, 0, 0, 0, 0 }, +}; + +DEFINE_PLL(pll_d, PLL_HAS_CPCON | PLLD, 0xd0, 1000000000, 2000000, 40000000, + 1000000, 6000000, 40000000, 1000000000, tegra_pll_d_freq_table, + 1000, tegra30_pll_ops, 0, tegra30_plld_clk_cfg_ex, pll_ref); + +DEFINE_PLL_OUT(pll_d_out0, DIV_2 | PLLD, 0, 0, 500000000, tegra30_pll_div_ops, + pll_d, CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED); + +DEFINE_PLL(pll_d2, PLL_HAS_CPCON | PLL_ALT_MISC_REG | PLLD, 0x4b8, 1000000000, + 2000000, 40000000, 1000000, 6000000, 40000000, 1000000000, + tegra_pll_d_freq_table, 1000, tegra30_pll_ops, 0, NULL, + pll_ref); + +DEFINE_PLL_OUT(pll_d2_out0, DIV_2 | PLLD, 0, 0, 500000000, tegra30_pll_div_ops, + pll_d2, CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED); + +static struct clk_pll_freq_table tegra_pll_u_freq_table[] = { + { 12000000, 480000000, 960, 12, 2, 12}, + { 13000000, 480000000, 960, 13, 2, 12}, + { 16800000, 480000000, 400, 7, 2, 5}, + { 19200000, 480000000, 200, 4, 2, 3}, + { 26000000, 480000000, 960, 26, 2, 12}, + { 0, 0, 0, 0, 0, 0 }, +}; + +DEFINE_PLL(pll_u, PLL_HAS_CPCON | PLLU, 0xc0, 480000000, 2000000, 40000000, + 1000000, 6000000, 48000000, 960000000, tegra_pll_u_freq_table, + 1000, tegra30_pll_ops, 0, NULL, pll_ref); + +static struct clk_pll_freq_table tegra_pll_x_freq_table[] = { + /* 1.7 GHz */ + { 12000000, 1700000000, 850, 6, 1, 8}, + { 13000000, 1700000000, 915, 7, 1, 8}, /* actual: 1699.2 MHz */ + { 16800000, 1700000000, 708, 7, 1, 8}, /* actual: 1699.2 MHz */ + { 19200000, 1700000000, 885, 10, 1, 8}, /* actual: 1699.2 MHz */ + { 26000000, 1700000000, 850, 13, 1, 8}, + + /* 1.6 GHz */ + { 12000000, 1600000000, 800, 6, 1, 8}, + { 13000000, 1600000000, 738, 6, 1, 8}, /* actual: 1599.0 MHz */ + { 16800000, 1600000000, 857, 9, 1, 8}, /* actual: 1599.7 MHz */ + { 19200000, 1600000000, 500, 6, 1, 8}, + { 26000000, 1600000000, 800, 13, 1, 8}, + + /* 1.5 GHz */ + { 12000000, 1500000000, 750, 6, 1, 8}, + { 13000000, 1500000000, 923, 8, 1, 8}, /* actual: 1499.8 MHz */ + { 16800000, 1500000000, 625, 7, 1, 8}, + { 19200000, 1500000000, 625, 8, 1, 8}, + { 26000000, 1500000000, 750, 13, 1, 8}, + + /* 1.4 GHz */ + { 12000000, 1400000000, 700, 6, 1, 8}, + { 13000000, 1400000000, 969, 9, 1, 8}, /* actual: 1399.7 MHz */ + { 16800000, 1400000000, 1000, 12, 1, 8}, + { 19200000, 1400000000, 875, 12, 1, 8}, + { 26000000, 1400000000, 700, 13, 1, 8}, + + /* 1.3 GHz */ + { 12000000, 1300000000, 975, 9, 1, 8}, + { 13000000, 1300000000, 1000, 10, 1, 8}, + { 16800000, 1300000000, 928, 12, 1, 8}, /* actual: 1299.2 MHz */ + { 19200000, 1300000000, 812, 12, 1, 8}, /* actual: 1299.2 MHz */ + { 26000000, 1300000000, 650, 13, 1, 8}, + + /* 1.2 GHz */ + { 12000000, 1200000000, 1000, 10, 1, 8}, + { 13000000, 1200000000, 923, 10, 1, 8}, /* actual: 1199.9 MHz */ + { 16800000, 1200000000, 1000, 14, 1, 8}, + { 19200000, 1200000000, 1000, 16, 1, 8}, + { 26000000, 1200000000, 600, 13, 1, 8}, + + /* 1.1 GHz */ + { 12000000, 1100000000, 825, 9, 1, 8}, + { 13000000, 1100000000, 846, 10, 1, 8}, /* actual: 1099.8 MHz */ + { 16800000, 1100000000, 982, 15, 1, 8}, /* actual: 1099.8 MHz */ + { 19200000, 1100000000, 859, 15, 1, 8}, /* actual: 1099.5 MHz */ + { 26000000, 1100000000, 550, 13, 1, 8}, + + /* 1 GHz */ + { 12000000, 1000000000, 1000, 12, 1, 8}, + { 13000000, 1000000000, 1000, 13, 1, 8}, + { 16800000, 1000000000, 833, 14, 1, 8}, /* actual: 999.6 MHz */ + { 19200000, 1000000000, 625, 12, 1, 8}, + { 26000000, 1000000000, 1000, 26, 1, 8}, + + { 0, 0, 0, 0, 0, 0 }, +}; + +DEFINE_PLL(pll_x, PLL_HAS_CPCON | PLL_ALT_MISC_REG | PLLX, 0xe0, 1700000000, + 2000000, 31000000, 1000000, 6000000, 20000000, 1700000000, + tegra_pll_x_freq_table, 300, tegra30_pll_ops, 0, NULL, pll_ref); + +DEFINE_PLL_OUT(pll_x_out0, DIV_2 | PLLX, 0, 0, 850000000, tegra30_pll_div_ops, + pll_x, CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED); + +static struct clk_pll_freq_table tegra_pll_e_freq_table[] = { + /* PLLE special case: use cpcon field to store cml divider value */ + { 12000000, 100000000, 150, 1, 18, 11}, + { 216000000, 100000000, 200, 18, 24, 13}, + { 0, 0, 0, 0, 0, 0 }, +}; + +DEFINE_PLL(pll_e, PLL_ALT_MISC_REG, 0xe8, 100000000, 2000000, 216000000, + 12000000, 12000000, 1200000000, 2400000000U, + tegra_pll_e_freq_table, 300, tegra30_plle_ops, 100000000, NULL, + pll_ref); + +static const char *mux_plle[] = { + "pll_e", +}; + +static struct clk *mux_plle_p[] = { + &tegra_pll_e, +}; + +static struct clk tegra_cml0; +static struct clk_tegra tegra_cml0_hw = { + .hw = { + .clk = &tegra_cml0, + }, + .reg = 0x48c, + .fixed_rate = 100000000, + .u.periph = { + .clk_num = 0, + }, +}; +DEFINE_CLK_TEGRA(cml0, 0, &tegra_cml_clk_ops, 0, mux_plle, + mux_plle_p, &tegra_pll_e); + +static struct clk tegra_cml1; +static struct clk_tegra tegra_cml1_hw = { + .hw = { + .clk = &tegra_cml1, + }, + .reg = 0x48c, + .fixed_rate = 100000000, + .u.periph = { + .clk_num = 1, + }, +}; +DEFINE_CLK_TEGRA(cml1, 0, &tegra_cml_clk_ops, 0, mux_plle, + mux_plle_p, &tegra_pll_e); + +static struct clk tegra_pciex; +static struct clk_tegra tegra_pciex_hw = { + .hw = { + .clk = &tegra_pciex, + }, + .reg = 0x48c, + .fixed_rate = 100000000, + .reset = tegra30_periph_clk_reset, + .u.periph = { + .clk_num = 74, + }, +}; +DEFINE_CLK_TEGRA(pciex, 0, &tegra_pciex_clk_ops, 0, mux_plle, + mux_plle_p, &tegra_pll_e); + +#define SYNC_SOURCE(_name) \ + static struct clk tegra_##_name##_sync; \ + static struct clk_tegra tegra_##_name##_sync_hw = { \ + .hw = { \ + .clk = &tegra_##_name##_sync, \ + }, \ + .max_rate = 24000000, \ + .fixed_rate = 24000000, \ + }; \ + static struct clk tegra_##_name##_sync = { \ + .name = #_name "_sync", \ + .hw = &tegra_##_name##_sync_hw.hw, \ + .ops = &tegra_sync_source_ops, \ + .flags = CLK_IS_ROOT, \ + }; + +SYNC_SOURCE(spdif_in); +SYNC_SOURCE(i2s0); +SYNC_SOURCE(i2s1); +SYNC_SOURCE(i2s2); +SYNC_SOURCE(i2s3); +SYNC_SOURCE(i2s4); +SYNC_SOURCE(vimclk); + +static struct clk *tegra_sync_source_list[] = { + &tegra_spdif_in_sync, + &tegra_i2s0_sync, + &tegra_i2s1_sync, + &tegra_i2s2_sync, + &tegra_i2s3_sync, + &tegra_i2s4_sync, + &tegra_vimclk_sync, +}; + +static const char *mux_audio_sync_clk[] = { + "spdif_in_sync", + "i2s0_sync", + "i2s1_sync", + "i2s2_sync", + "i2s3_sync", + "i2s4_sync", + "vimclk_sync", +}; + +#define AUDIO_SYNC_CLK(_name, _index) \ + static struct clk tegra_##_name; \ + static struct clk_tegra tegra_##_name##_hw = { \ + .hw = { \ + .clk = &tegra_##_name, \ + }, \ + .max_rate = 24000000, \ + .reg = 0x4A0 + (_index) * 4, \ + }; \ + static struct clk tegra_##_name = { \ + .name = #_name, \ + .ops = &tegra30_audio_sync_clk_ops, \ + .hw = &tegra_##_name##_hw.hw, \ + .parent_names = mux_audio_sync_clk, \ + .parents = tegra_sync_source_list, \ + .num_parents = ARRAY_SIZE(mux_audio_sync_clk), \ + }; + +AUDIO_SYNC_CLK(audio0, 0); +AUDIO_SYNC_CLK(audio1, 1); +AUDIO_SYNC_CLK(audio2, 2); +AUDIO_SYNC_CLK(audio3, 3); +AUDIO_SYNC_CLK(audio4, 4); +AUDIO_SYNC_CLK(audio5, 5); + +static struct clk *tegra_clk_audio_list[] = { + &tegra_audio0, + &tegra_audio1, + &tegra_audio2, + &tegra_audio3, + &tegra_audio4, + &tegra_audio5, /* SPDIF */ +}; + +#define AUDIO_SYNC_2X_CLK(_name, _index) \ + static const char *_name##_parent_names[] = { \ + "tegra_" #_name, \ + }; \ + static struct clk *_name##_parents[] = { \ + &tegra_##_name, \ + }; \ + static struct clk tegra_##_name##_2x; \ + static struct clk_tegra tegra_##_name##_2x_hw = { \ + .hw = { \ + .clk = &tegra_##_name##_2x, \ + }, \ + .flags = PERIPH_NO_RESET, \ + .max_rate = 48000000, \ + .reg = 0x49C, \ + .reg_shift = 24 + (_index), \ + .u.periph = { \ + .clk_num = 113 + (_index), \ + }, \ + }; \ + static struct clk tegra_##_name##_2x = { \ + .name = #_name "_2x", \ + .ops = &tegra30_clk_double_ops, \ + .hw = &tegra_##_name##_2x_hw.hw, \ + .parent_names = _name##_parent_names, \ + .parents = _name##_parents, \ + .parent = &tegra_##_name, \ + .num_parents = 1, \ + }; + +AUDIO_SYNC_2X_CLK(audio0, 0); +AUDIO_SYNC_2X_CLK(audio1, 1); +AUDIO_SYNC_2X_CLK(audio2, 2); +AUDIO_SYNC_2X_CLK(audio3, 3); +AUDIO_SYNC_2X_CLK(audio4, 4); +AUDIO_SYNC_2X_CLK(audio5, 5); /* SPDIF */ + +static struct clk *tegra_clk_audio_2x_list[] = { + &tegra_audio0_2x, + &tegra_audio1_2x, + &tegra_audio2_2x, + &tegra_audio3_2x, + &tegra_audio4_2x, + &tegra_audio5_2x, /* SPDIF */ +}; + +#define MUX_I2S_SPDIF(_id) \ +static const char *mux_pllaout0_##_id##_2x_pllp_clkm[] = { \ + "pll_a_out0", \ + #_id "_2x", \ + "pll_p", \ + "clk_m", \ +}; \ +static struct clk *mux_pllaout0_##_id##_2x_pllp_clkm_p[] = { \ + &tegra_pll_a_out0, \ + &tegra_##_id##_2x, \ + &tegra_pll_p, \ + &tegra_clk_m, \ +}; + +MUX_I2S_SPDIF(audio0); +MUX_I2S_SPDIF(audio1); +MUX_I2S_SPDIF(audio2); +MUX_I2S_SPDIF(audio3); +MUX_I2S_SPDIF(audio4); +MUX_I2S_SPDIF(audio5); /* SPDIF */ + +static struct clk tegra_extern1; +static struct clk tegra_extern2; +static struct clk tegra_extern3; + +/* External clock outputs (through PMC) */ +#define MUX_EXTERN_OUT(_id) \ +static const char *mux_clkm_clkm2_clkm4_extern##_id[] = { \ + "clk_m", \ + "clk_m_div2", \ + "clk_m_div4", \ + "extern" #_id, \ +}; \ +static struct clk *mux_clkm_clkm2_clkm4_extern##_id##_p[] = { \ + &tegra_clk_m, \ + &tegra_clk_m_div2, \ + &tegra_clk_m_div4, \ + &tegra_extern##_id, \ +}; + +MUX_EXTERN_OUT(1); +MUX_EXTERN_OUT(2); +MUX_EXTERN_OUT(3); + +#define CLK_OUT_CLK(_name, _index) \ + static struct clk tegra_##_name; \ + static struct clk_tegra tegra_##_name##_hw = { \ + .hw = { \ + .clk = &tegra_##_name, \ + }, \ + .lookup = { \ + .dev_id = #_name, \ + .con_id = "extern" #_index, \ + }, \ + .flags = MUX_CLK_OUT, \ + .fixed_rate = 216000000, \ + .reg = 0x1a8, \ + .u.periph = { \ + .clk_num = (_index - 1) * 8 + 2, \ + }, \ + }; \ + static struct clk tegra_##_name = { \ + .name = #_name, \ + .ops = &tegra_clk_out_ops, \ + .hw = &tegra_##_name##_hw.hw, \ + .parent_names = mux_clkm_clkm2_clkm4_extern##_index, \ + .parents = mux_clkm_clkm2_clkm4_extern##_index##_p, \ + .num_parents = ARRAY_SIZE(mux_clkm_clkm2_clkm4_extern##_index),\ + }; + +CLK_OUT_CLK(clk_out_1, 1); +CLK_OUT_CLK(clk_out_2, 2); +CLK_OUT_CLK(clk_out_3, 3); + +static struct clk *tegra_clk_out_list[] = { + &tegra_clk_out_1, + &tegra_clk_out_2, + &tegra_clk_out_3, +}; + +static const char *mux_sclk[] = { + "clk_m", + "pll_c_out1", + "pll_p_out4", + "pll_p_out3", + "pll_p_out2", + "dummy", + "clk_32k", + "pll_m_out1", +}; + +static struct clk *mux_sclk_p[] = { + &tegra_clk_m, + &tegra_pll_c_out1, + &tegra_pll_p_out4, + &tegra_pll_p_out3, + &tegra_pll_p_out2, + NULL, + &tegra_clk_32k, + &tegra_pll_m_out1, +}; + +static struct clk tegra_clk_sclk; +static struct clk_tegra tegra_clk_sclk_hw = { + .hw = { + .clk = &tegra_clk_sclk, + }, + .reg = 0x28, + .max_rate = 334000000, + .min_rate = 40000000, +}; + +static struct clk tegra_clk_sclk = { + .name = "sclk", + .ops = &tegra30_super_ops, + .hw = &tegra_clk_sclk_hw.hw, + .parent_names = mux_sclk, + .parents = mux_sclk_p, + .num_parents = ARRAY_SIZE(mux_sclk), +}; + +static const char *mux_blink[] = { + "clk_32k", +}; + +static struct clk *mux_blink_p[] = { + &tegra_clk_32k, +}; + +static struct clk tegra_clk_blink; +static struct clk_tegra tegra_clk_blink_hw = { + .hw = { + .clk = &tegra_clk_blink, + }, + .reg = 0x40, + .max_rate = 32768, +}; +static struct clk tegra_clk_blink = { + .name = "blink", + .ops = &tegra30_blink_clk_ops, + .hw = &tegra_clk_blink_hw.hw, + .parent = &tegra_clk_32k, + .parent_names = mux_blink, + .parents = mux_blink_p, + .num_parents = ARRAY_SIZE(mux_blink), +}; + +static const char *mux_pllm_pllc_pllp_plla[] = { + "pll_m", + "pll_c", + "pll_p", + "pll_a_out0", +}; + +static const char *mux_pllp_pllc_pllm_clkm[] = { + "pll_p", + "pll_c", + "pll_m", + "clk_m", +}; + +static const char *mux_pllp_clkm[] = { + "pll_p", + "dummy", + "dummy", + "clk_m", +}; + +static const char *mux_pllp_plld_pllc_clkm[] = { + "pll_p", + "pll_d_out0", + "pll_c", + "clk_m", +}; + +static const char *mux_pllp_pllm_plld_plla_pllc_plld2_clkm[] = { + "pll_p", + "pll_m", + "pll_d_out0", + "pll_a_out0", + "pll_c", + "pll_d2_out0", + "clk_m", +}; + +static const char *mux_plla_pllc_pllp_clkm[] = { + "pll_a_out0", + "dummy", + "pll_p", + "clk_m" +}; + +static const char *mux_pllp_pllc_clk32_clkm[] = { + "pll_p", + "pll_c", + "clk_32k", + "clk_m", +}; + +static const char *mux_pllp_pllc_clkm_clk32[] = { + "pll_p", + "pll_c", + "clk_m", + "clk_32k", +}; + +static const char *mux_pllp_pllc_pllm[] = { + "pll_p", + "pll_c", + "pll_m", +}; + +static const char *mux_clk_m[] = { + "clk_m", +}; + +static const char *mux_pllp_out3[] = { + "pll_p_out3", +}; + +static const char *mux_plld_out0[] = { + "pll_d_out0", +}; + +static const char *mux_plld_out0_plld2_out0[] = { + "pll_d_out0", + "pll_d2_out0", +}; + +static const char *mux_clk_32k[] = { + "clk_32k", +}; + +static const char *mux_plla_clk32_pllp_clkm_plle[] = { + "pll_a_out0", + "clk_32k", + "pll_p", + "clk_m", + "pll_e", +}; + +static const char *mux_cclk_g[] = { + "clk_m", + "pll_c", + "clk_32k", + "pll_m", + "pll_p", + "pll_p_out4", + "pll_p_out3", + "dummy", + "pll_x", +}; + +static struct clk *mux_pllm_pllc_pllp_plla_p[] = { + &tegra_pll_m, + &tegra_pll_c, + &tegra_pll_p, + &tegra_pll_a_out0, +}; + +static struct clk *mux_pllp_pllc_pllm_clkm_p[] = { + &tegra_pll_p, + &tegra_pll_c, + &tegra_pll_m, + &tegra_clk_m, +}; + +static struct clk *mux_pllp_clkm_p[] = { + &tegra_pll_p, + NULL, + NULL, + &tegra_clk_m, +}; + +static struct clk *mux_pllp_plld_pllc_clkm_p[] = { + &tegra_pll_p, + &tegra_pll_d_out0, + &tegra_pll_c, + &tegra_clk_m, +}; + +static struct clk *mux_pllp_pllm_plld_plla_pllc_plld2_clkm_p[] = { + &tegra_pll_p, + &tegra_pll_m, + &tegra_pll_d_out0, + &tegra_pll_a_out0, + &tegra_pll_c, + &tegra_pll_d2_out0, + &tegra_clk_m, +}; + +static struct clk *mux_plla_pllc_pllp_clkm_p[] = { + &tegra_pll_a_out0, + NULL, + &tegra_pll_p, + &tegra_clk_m, +}; + +static struct clk *mux_pllp_pllc_clk32_clkm_p[] = { + &tegra_pll_p, + &tegra_pll_c, + &tegra_clk_32k, + &tegra_clk_m, +}; + +static struct clk *mux_pllp_pllc_clkm_clk32_p[] = { + &tegra_pll_p, + &tegra_pll_c, + &tegra_clk_m, + &tegra_clk_32k, +}; + +static struct clk *mux_pllp_pllc_pllm_p[] = { + &tegra_pll_p, + &tegra_pll_c, + &tegra_pll_m, +}; + +static struct clk *mux_clk_m_p[] = { + &tegra_clk_m, +}; + +static struct clk *mux_pllp_out3_p[] = { + &tegra_pll_p_out3, +}; + +static struct clk *mux_plld_out0_p[] = { + &tegra_pll_d_out0, +}; + +static struct clk *mux_plld_out0_plld2_out0_p[] = { + &tegra_pll_d_out0, + &tegra_pll_d2_out0, +}; + +static struct clk *mux_clk_32k_p[] = { + &tegra_clk_32k, +}; + +static struct clk *mux_plla_clk32_pllp_clkm_plle_p[] = { + &tegra_pll_a_out0, + &tegra_clk_32k, + &tegra_pll_p, + &tegra_clk_m, + &tegra_pll_e, +}; + +static struct clk *mux_cclk_g_p[] = { + &tegra_clk_m, + &tegra_pll_c, + &tegra_clk_32k, + &tegra_pll_m, + &tegra_pll_p, + &tegra_pll_p_out4, + &tegra_pll_p_out3, + NULL, + &tegra_pll_x, +}; + +static struct clk tegra_clk_cclk_g; +static struct clk_tegra tegra_clk_cclk_g_hw = { + .hw = { + .clk = &tegra_clk_cclk_g, + }, + .flags = DIV_U71 | DIV_U71_INT, + .reg = 0x368, + .max_rate = 1700000000, +}; +static struct clk tegra_clk_cclk_g = { + .name = "cclk_g", + .ops = &tegra30_super_ops, + .hw = &tegra_clk_cclk_g_hw.hw, + .parent_names = mux_cclk_g, + .parents = mux_cclk_g_p, + .num_parents = ARRAY_SIZE(mux_cclk_g), +}; + +static const char *mux_twd[] = { + "cclk_g", +}; + +static struct clk *mux_twd_p[] = { + &tegra_clk_cclk_g, +}; + +static struct clk tegra30_clk_twd; +static struct clk_tegra tegra30_clk_twd_hw = { + .hw = { + .clk = &tegra30_clk_twd, + }, + .max_rate = 1400000000, + .mul = 1, + .div = 2, +}; + +static struct clk tegra30_clk_twd = { + .name = "twd", + .ops = &tegra30_twd_ops, + .hw = &tegra30_clk_twd_hw.hw, + .parent = &tegra_clk_cclk_g, + .parent_names = mux_twd, + .parents = mux_twd_p, + .num_parents = ARRAY_SIZE(mux_twd), +}; + +#define PERIPH_CLK(_name, _dev, _con, _clk_num, _reg, \ + _max, _inputs, _flags) \ + static struct clk tegra_##_name; \ + static struct clk_tegra tegra_##_name##_hw = { \ + .hw = { \ + .clk = &tegra_##_name, \ + }, \ + .lookup = { \ + .dev_id = _dev, \ + .con_id = _con, \ + }, \ + .reg = _reg, \ + .flags = _flags, \ + .max_rate = _max, \ + .u.periph = { \ + .clk_num = _clk_num, \ + }, \ + .reset = &tegra30_periph_clk_reset, \ + }; \ + static struct clk tegra_##_name = { \ + .name = #_name, \ + .ops = &tegra30_periph_clk_ops, \ + .hw = &tegra_##_name##_hw.hw, \ + .parent_names = _inputs, \ + .parents = _inputs##_p, \ + .num_parents = ARRAY_SIZE(_inputs), \ + }; + +PERIPH_CLK(apbdma, "tegra-apbdma", NULL, 34, 0, 26000000, mux_clk_m, 0); +PERIPH_CLK(rtc, "rtc-tegra", NULL, 4, 0, 32768, mux_clk_32k, PERIPH_NO_RESET | PERIPH_ON_APB); +PERIPH_CLK(kbc, "tegra-kbc", NULL, 36, 0, 32768, mux_clk_32k, PERIPH_NO_RESET | PERIPH_ON_APB); +PERIPH_CLK(timer, "timer", NULL, 5, 0, 26000000, mux_clk_m, 0); +PERIPH_CLK(kfuse, "kfuse-tegra", NULL, 40, 0, 26000000, mux_clk_m, 0); +PERIPH_CLK(fuse, "fuse-tegra", "fuse", 39, 0, 26000000, mux_clk_m, PERIPH_ON_APB); +PERIPH_CLK(fuse_burn, "fuse-tegra", "fuse_burn", 39, 0, 26000000, mux_clk_m, PERIPH_ON_APB); +PERIPH_CLK(apbif, "tegra30-ahub", "apbif", 107, 0, 26000000, mux_clk_m, 0); +PERIPH_CLK(i2s0, "tegra30-i2s.0", NULL, 30, 0x1d8, 26000000, mux_pllaout0_audio0_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB); +PERIPH_CLK(i2s1, "tegra30-i2s.1", NULL, 11, 0x100, 26000000, mux_pllaout0_audio1_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB); +PERIPH_CLK(i2s2, "tegra30-i2s.2", NULL, 18, 0x104, 26000000, mux_pllaout0_audio2_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB); +PERIPH_CLK(i2s3, "tegra30-i2s.3", NULL, 101, 0x3bc, 26000000, mux_pllaout0_audio3_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB); +PERIPH_CLK(i2s4, "tegra30-i2s.4", NULL, 102, 0x3c0, 26000000, mux_pllaout0_audio4_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB); +PERIPH_CLK(spdif_out, "tegra30-spdif", "spdif_out", 10, 0x108, 100000000, mux_pllaout0_audio5_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB); +PERIPH_CLK(spdif_in, "tegra30-spdif", "spdif_in", 10, 0x10c, 100000000, mux_pllp_pllc_pllm, MUX | DIV_U71 | PERIPH_ON_APB); +PERIPH_CLK(pwm, "tegra-pwm", NULL, 17, 0x110, 432000000, mux_pllp_pllc_clk32_clkm, MUX | MUX_PWM | DIV_U71 | PERIPH_ON_APB); +PERIPH_CLK(d_audio, "tegra30-ahub", "d_audio", 106, 0x3d0, 48000000, mux_plla_pllc_pllp_clkm, MUX | DIV_U71); +PERIPH_CLK(dam0, "tegra30-dam.0", NULL, 108, 0x3d8, 48000000, mux_plla_pllc_pllp_clkm, MUX | DIV_U71); +PERIPH_CLK(dam1, "tegra30-dam.1", NULL, 109, 0x3dc, 48000000, mux_plla_pllc_pllp_clkm, MUX | DIV_U71); +PERIPH_CLK(dam2, "tegra30-dam.2", NULL, 110, 0x3e0, 48000000, mux_plla_pllc_pllp_clkm, MUX | DIV_U71); +PERIPH_CLK(hda, "tegra30-hda", "hda", 125, 0x428, 108000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); +PERIPH_CLK(hda2codec_2x, "tegra30-hda", "hda2codec", 111, 0x3e4, 48000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); +PERIPH_CLK(hda2hdmi, "tegra30-hda", "hda2hdmi", 128, 0, 48000000, mux_clk_m, 0); +PERIPH_CLK(sbc1, "spi_tegra.0", NULL, 41, 0x134, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB); +PERIPH_CLK(sbc2, "spi_tegra.1", NULL, 44, 0x118, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB); +PERIPH_CLK(sbc3, "spi_tegra.2", NULL, 46, 0x11c, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB); +PERIPH_CLK(sbc4, "spi_tegra.3", NULL, 68, 0x1b4, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB); +PERIPH_CLK(sbc5, "spi_tegra.4", NULL, 104, 0x3c8, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB); +PERIPH_CLK(sbc6, "spi_tegra.5", NULL, 105, 0x3cc, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB); +PERIPH_CLK(sata_oob, "tegra_sata_oob", NULL, 123, 0x420, 216000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); +PERIPH_CLK(sata, "tegra_sata", NULL, 124, 0x424, 216000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); +PERIPH_CLK(sata_cold, "tegra_sata_cold", NULL, 129, 0, 48000000, mux_clk_m, 0); +PERIPH_CLK(ndflash, "tegra_nand", NULL, 13, 0x160, 240000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); +PERIPH_CLK(ndspeed, "tegra_nand_speed", NULL, 80, 0x3f8, 240000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); +PERIPH_CLK(vfir, "vfir", NULL, 7, 0x168, 72000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB); +PERIPH_CLK(sdmmc1, "sdhci-tegra.0", NULL, 14, 0x150, 208000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */ +PERIPH_CLK(sdmmc2, "sdhci-tegra.1", NULL, 9, 0x154, 104000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */ +PERIPH_CLK(sdmmc3, "sdhci-tegra.2", NULL, 69, 0x1bc, 208000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */ +PERIPH_CLK(sdmmc4, "sdhci-tegra.3", NULL, 15, 0x164, 104000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */ +PERIPH_CLK(vcp, "tegra-avp", "vcp", 29, 0, 250000000, mux_clk_m, 0); +PERIPH_CLK(bsea, "tegra-avp", "bsea", 62, 0, 250000000, mux_clk_m, 0); +PERIPH_CLK(bsev, "tegra-aes", "bsev", 63, 0, 250000000, mux_clk_m, 0); +PERIPH_CLK(vde, "vde", NULL, 61, 0x1c8, 520000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_INT); +PERIPH_CLK(csite, "csite", NULL, 73, 0x1d4, 144000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* max rate ??? */ +PERIPH_CLK(la, "la", NULL, 76, 0x1f8, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); +PERIPH_CLK(owr, "tegra_w1", NULL, 71, 0x1cc, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB); +PERIPH_CLK(nor, "nor", NULL, 42, 0x1d0, 127000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* requires min voltage */ +PERIPH_CLK(mipi, "mipi", NULL, 50, 0x174, 60000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB); /* scales with voltage */ +PERIPH_CLK(i2c1, "tegra-i2c.0", NULL, 12, 0x124, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB); +PERIPH_CLK(i2c2, "tegra-i2c.1", NULL, 54, 0x198, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB); +PERIPH_CLK(i2c3, "tegra-i2c.2", NULL, 67, 0x1b8, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB); +PERIPH_CLK(i2c4, "tegra-i2c.3", NULL, 103, 0x3c4, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB); +PERIPH_CLK(i2c5, "tegra-i2c.4", NULL, 47, 0x128, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB); +PERIPH_CLK(uarta, "tegra-uart.0", NULL, 6, 0x178, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB); +PERIPH_CLK(uartb, "tegra-uart.1", NULL, 7, 0x17c, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB); +PERIPH_CLK(uartc, "tegra-uart.2", NULL, 55, 0x1a0, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB); +PERIPH_CLK(uartd, "tegra-uart.3", NULL, 65, 0x1c0, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB); +PERIPH_CLK(uarte, "tegra-uart.4", NULL, 66, 0x1c4, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB); +PERIPH_CLK(vi, "tegra_camera", "vi", 20, 0x148, 425000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT); +PERIPH_CLK(3d, "3d", NULL, 24, 0x158, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT | DIV_U71_IDLE | PERIPH_MANUAL_RESET); +PERIPH_CLK(3d2, "3d2", NULL, 98, 0x3b0, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT | DIV_U71_IDLE | PERIPH_MANUAL_RESET); +PERIPH_CLK(2d, "2d", NULL, 21, 0x15c, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT | DIV_U71_IDLE); +PERIPH_CLK(vi_sensor, "tegra_camera", "vi_sensor", 20, 0x1a8, 150000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | PERIPH_NO_RESET); +PERIPH_CLK(epp, "epp", NULL, 19, 0x16c, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT); +PERIPH_CLK(mpe, "mpe", NULL, 60, 0x170, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT); +PERIPH_CLK(host1x, "host1x", NULL, 28, 0x180, 260000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT); +PERIPH_CLK(cve, "cve", NULL, 49, 0x140, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */ +PERIPH_CLK(tvo, "tvo", NULL, 49, 0x188, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */ +PERIPH_CLK(dtv, "dtv", NULL, 79, 0x1dc, 250000000, mux_clk_m, 0); +PERIPH_CLK(hdmi, "hdmi", NULL, 51, 0x18c, 148500000, mux_pllp_pllm_plld_plla_pllc_plld2_clkm, MUX | MUX8 | DIV_U71); +PERIPH_CLK(tvdac, "tvdac", NULL, 53, 0x194, 220000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */ +PERIPH_CLK(disp1, "tegradc.0", NULL, 27, 0x138, 600000000, mux_pllp_pllm_plld_plla_pllc_plld2_clkm, MUX | MUX8); +PERIPH_CLK(disp2, "tegradc.1", NULL, 26, 0x13c, 600000000, mux_pllp_pllm_plld_plla_pllc_plld2_clkm, MUX | MUX8); +PERIPH_CLK(usbd, "fsl-tegra-udc", NULL, 22, 0, 480000000, mux_clk_m, 0); /* requires min voltage */ +PERIPH_CLK(usb2, "tegra-ehci.1", NULL, 58, 0, 480000000, mux_clk_m, 0); /* requires min voltage */ +PERIPH_CLK(usb3, "tegra-ehci.2", NULL, 59, 0, 480000000, mux_clk_m, 0); /* requires min voltage */ +PERIPH_CLK(dsia, "tegradc.0", "dsia", 48, 0, 500000000, mux_plld_out0, 0); +PERIPH_CLK(csi, "tegra_camera", "csi", 52, 0, 102000000, mux_pllp_out3, 0); +PERIPH_CLK(isp, "tegra_camera", "isp", 23, 0, 150000000, mux_clk_m, 0); /* same frequency as VI */ +PERIPH_CLK(csus, "tegra_camera", "csus", 92, 0, 150000000, mux_clk_m, PERIPH_NO_RESET); +PERIPH_CLK(tsensor, "tegra-tsensor", NULL, 100, 0x3b8, 216000000, mux_pllp_pllc_clkm_clk32, MUX | DIV_U71); +PERIPH_CLK(actmon, "actmon", NULL, 119, 0x3e8, 216000000, mux_pllp_pllc_clk32_clkm, MUX | DIV_U71); +PERIPH_CLK(extern1, "extern1", NULL, 120, 0x3ec, 216000000, mux_plla_clk32_pllp_clkm_plle, MUX | MUX8 | DIV_U71); +PERIPH_CLK(extern2, "extern2", NULL, 121, 0x3f0, 216000000, mux_plla_clk32_pllp_clkm_plle, MUX | MUX8 | DIV_U71); +PERIPH_CLK(extern3, "extern3", NULL, 122, 0x3f4, 216000000, mux_plla_clk32_pllp_clkm_plle, MUX | MUX8 | DIV_U71); +PERIPH_CLK(i2cslow, "i2cslow", NULL, 81, 0x3fc, 26000000, mux_pllp_pllc_clk32_clkm, MUX | DIV_U71 | PERIPH_ON_APB); +PERIPH_CLK(pcie, "tegra-pcie", "pcie", 70, 0, 250000000, mux_clk_m, 0); +PERIPH_CLK(afi, "tegra-pcie", "afi", 72, 0, 250000000, mux_clk_m, 0); +PERIPH_CLK(se, "se", NULL, 127, 0x42c, 520000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_INT); + +static struct clk tegra_dsib; +static struct clk_tegra tegra_dsib_hw = { + .hw = { + .clk = &tegra_dsib, + }, + .lookup = { + .dev_id = "tegradc.1", + .con_id = "dsib", + }, + .reg = 0xd0, + .flags = MUX | PLLD, + .max_rate = 500000000, + .u.periph = { + .clk_num = 82, + }, + .reset = &tegra30_periph_clk_reset, +}; +static struct clk tegra_dsib = { + .name = "dsib", + .ops = &tegra30_dsib_clk_ops, + .hw = &tegra_dsib_hw.hw, + .parent_names = mux_plld_out0_plld2_out0, + .parents = mux_plld_out0_plld2_out0_p, + .num_parents = ARRAY_SIZE(mux_plld_out0_plld2_out0), +}; + +struct clk *tegra_list_clks[] = { + &tegra_apbdma, + &tegra_rtc, + &tegra_kbc, + &tegra_kfuse, + &tegra_fuse, + &tegra_fuse_burn, + &tegra_apbif, + &tegra_i2s0, + &tegra_i2s1, + &tegra_i2s2, + &tegra_i2s3, + &tegra_i2s4, + &tegra_spdif_out, + &tegra_spdif_in, + &tegra_pwm, + &tegra_d_audio, + &tegra_dam0, + &tegra_dam1, + &tegra_dam2, + &tegra_hda, + &tegra_hda2codec_2x, + &tegra_hda2hdmi, + &tegra_sbc1, + &tegra_sbc2, + &tegra_sbc3, + &tegra_sbc4, + &tegra_sbc5, + &tegra_sbc6, + &tegra_sata_oob, + &tegra_sata, + &tegra_sata_cold, + &tegra_ndflash, + &tegra_ndspeed, + &tegra_vfir, + &tegra_sdmmc1, + &tegra_sdmmc2, + &tegra_sdmmc3, + &tegra_sdmmc4, + &tegra_vcp, + &tegra_bsea, + &tegra_bsev, + &tegra_vde, + &tegra_csite, + &tegra_la, + &tegra_owr, + &tegra_nor, + &tegra_mipi, + &tegra_i2c1, + &tegra_i2c2, + &tegra_i2c3, + &tegra_i2c4, + &tegra_i2c5, + &tegra_uarta, + &tegra_uartb, + &tegra_uartc, + &tegra_uartd, + &tegra_uarte, + &tegra_vi, + &tegra_3d, + &tegra_3d2, + &tegra_2d, + &tegra_vi_sensor, + &tegra_epp, + &tegra_mpe, + &tegra_host1x, + &tegra_cve, + &tegra_tvo, + &tegra_dtv, + &tegra_hdmi, + &tegra_tvdac, + &tegra_disp1, + &tegra_disp2, + &tegra_usbd, + &tegra_usb2, + &tegra_usb3, + &tegra_dsia, + &tegra_dsib, + &tegra_csi, + &tegra_isp, + &tegra_csus, + &tegra_tsensor, + &tegra_actmon, + &tegra_extern1, + &tegra_extern2, + &tegra_extern3, + &tegra_i2cslow, + &tegra_pcie, + &tegra_afi, + &tegra_se, +}; + +#define CLK_DUPLICATE(_name, _dev, _con) \ + { \ + .name = _name, \ + .lookup = { \ + .dev_id = _dev, \ + .con_id = _con, \ + }, \ + } + +/* Some clocks may be used by different drivers depending on the board + * configuration. List those here to register them twice in the clock lookup + * table under two names. + */ +struct clk_duplicate tegra_clk_duplicates[] = { + CLK_DUPLICATE("uarta", "serial8250.0", NULL), + CLK_DUPLICATE("uartb", "serial8250.1", NULL), + CLK_DUPLICATE("uartc", "serial8250.2", NULL), + CLK_DUPLICATE("uartd", "serial8250.3", NULL), + CLK_DUPLICATE("uarte", "serial8250.4", NULL), + CLK_DUPLICATE("usbd", "utmip-pad", NULL), + CLK_DUPLICATE("usbd", "tegra-ehci.0", NULL), + CLK_DUPLICATE("usbd", "tegra-otg", NULL), + CLK_DUPLICATE("hdmi", "tegradc.0", "hdmi"), + CLK_DUPLICATE("hdmi", "tegradc.1", "hdmi"), + CLK_DUPLICATE("dsib", "tegradc.0", "dsib"), + CLK_DUPLICATE("dsia", "tegradc.1", "dsia"), + CLK_DUPLICATE("bsev", "tegra-avp", "bsev"), + CLK_DUPLICATE("bsev", "nvavp", "bsev"), + CLK_DUPLICATE("vde", "tegra-aes", "vde"), + CLK_DUPLICATE("bsea", "tegra-aes", "bsea"), + CLK_DUPLICATE("bsea", "nvavp", "bsea"), + CLK_DUPLICATE("cml1", "tegra_sata_cml", NULL), + CLK_DUPLICATE("cml0", "tegra_pcie", "cml"), + CLK_DUPLICATE("pciex", "tegra_pcie", "pciex"), + CLK_DUPLICATE("i2c1", "tegra-i2c-slave.0", NULL), + CLK_DUPLICATE("i2c2", "tegra-i2c-slave.1", NULL), + CLK_DUPLICATE("i2c3", "tegra-i2c-slave.2", NULL), + CLK_DUPLICATE("i2c4", "tegra-i2c-slave.3", NULL), + CLK_DUPLICATE("i2c5", "tegra-i2c-slave.4", NULL), + CLK_DUPLICATE("sbc1", "spi_slave_tegra.0", NULL), + CLK_DUPLICATE("sbc2", "spi_slave_tegra.1", NULL), + CLK_DUPLICATE("sbc3", "spi_slave_tegra.2", NULL), + CLK_DUPLICATE("sbc4", "spi_slave_tegra.3", NULL), + CLK_DUPLICATE("sbc5", "spi_slave_tegra.4", NULL), + CLK_DUPLICATE("sbc6", "spi_slave_tegra.5", NULL), + CLK_DUPLICATE("twd", "smp_twd", NULL), + CLK_DUPLICATE("vcp", "nvavp", "vcp"), + CLK_DUPLICATE("i2s0", NULL, "i2s0"), + CLK_DUPLICATE("i2s1", NULL, "i2s1"), + CLK_DUPLICATE("i2s2", NULL, "i2s2"), + CLK_DUPLICATE("i2s3", NULL, "i2s3"), + CLK_DUPLICATE("i2s4", NULL, "i2s4"), + CLK_DUPLICATE("dam0", NULL, "dam0"), + CLK_DUPLICATE("dam1", NULL, "dam1"), + CLK_DUPLICATE("dam2", NULL, "dam2"), + CLK_DUPLICATE("spdif_in", NULL, "spdif_in"), +}; + +struct clk *tegra_ptr_clks[] = { + &tegra_clk_32k, + &tegra_clk_m, + &tegra_clk_m_div2, + &tegra_clk_m_div4, + &tegra_pll_ref, + &tegra_pll_m, + &tegra_pll_m_out1, + &tegra_pll_c, + &tegra_pll_c_out1, + &tegra_pll_p, + &tegra_pll_p_out1, + &tegra_pll_p_out2, + &tegra_pll_p_out3, + &tegra_pll_p_out4, + &tegra_pll_a, + &tegra_pll_a_out0, + &tegra_pll_d, + &tegra_pll_d_out0, + &tegra_pll_d2, + &tegra_pll_d2_out0, + &tegra_pll_u, + &tegra_pll_x, + &tegra_pll_x_out0, + &tegra_pll_e, + &tegra_clk_cclk_g, + &tegra_cml0, + &tegra_cml1, + &tegra_pciex, + &tegra_clk_sclk, + &tegra_clk_blink, + &tegra30_clk_twd, +}; + +static void tegra30_init_one_clock(struct clk *c) +{ + struct clk_tegra *clk = to_clk_tegra(c->hw); + __clk_init(NULL, c); + INIT_LIST_HEAD(&clk->shared_bus_list); + if (!clk->lookup.dev_id && !clk->lookup.con_id) + clk->lookup.con_id = c->name; + clk->lookup.clk = c; + clkdev_add(&clk->lookup); + tegra_clk_add(c); +} + +void __init tegra30_init_clocks(void) +{ + int i; + struct clk *c; + + for (i = 0; i < ARRAY_SIZE(tegra_ptr_clks); i++) + tegra30_init_one_clock(tegra_ptr_clks[i]); + + for (i = 0; i < ARRAY_SIZE(tegra_list_clks); i++) + tegra30_init_one_clock(tegra_list_clks[i]); + + for (i = 0; i < ARRAY_SIZE(tegra_clk_duplicates); i++) { + c = tegra_get_clock_by_name(tegra_clk_duplicates[i].name); + if (!c) { + pr_err("%s: Unknown duplicate clock %s\n", __func__, + tegra_clk_duplicates[i].name); + continue; + } + + tegra_clk_duplicates[i].lookup.clk = c; + clkdev_add(&tegra_clk_duplicates[i].lookup); + } + + for (i = 0; i < ARRAY_SIZE(tegra_sync_source_list); i++) + tegra30_init_one_clock(tegra_sync_source_list[i]); + for (i = 0; i < ARRAY_SIZE(tegra_clk_audio_list); i++) + tegra30_init_one_clock(tegra_clk_audio_list[i]); + for (i = 0; i < ARRAY_SIZE(tegra_clk_audio_2x_list); i++) + tegra30_init_one_clock(tegra_clk_audio_2x_list[i]); + + for (i = 0; i < ARRAY_SIZE(tegra_clk_out_list); i++) + tegra30_init_one_clock(tegra_clk_out_list[i]); + + tegra30_cpu_car_ops_init(); +} diff --git a/arch/arm/mach-tegra/tegra_cpu_car.h b/arch/arm/mach-tegra/tegra_cpu_car.h new file mode 100644 index 000000000000..30d063ad2bef --- /dev/null +++ b/arch/arm/mach-tegra/tegra_cpu_car.h @@ -0,0 +1,87 @@ +/* + * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#ifndef __MACH_TEGRA_CPU_CAR_H +#define __MACH_TEGRA_CPU_CAR_H + +/* + * Tegra CPU clock and reset control ops + * + * wait_for_reset: + * keep waiting until the CPU in reset state + * put_in_reset: + * put the CPU in reset state + * out_of_reset: + * release the CPU from reset state + * enable_clock: + * CPU clock un-gate + * disable_clock: + * CPU clock gate + */ +struct tegra_cpu_car_ops { + void (*wait_for_reset)(u32 cpu); + void (*put_in_reset)(u32 cpu); + void (*out_of_reset)(u32 cpu); + void (*enable_clock)(u32 cpu); + void (*disable_clock)(u32 cpu); +}; + +extern struct tegra_cpu_car_ops *tegra_cpu_car_ops; + +static inline void tegra_wait_cpu_in_reset(u32 cpu) +{ + if (WARN_ON(!tegra_cpu_car_ops->wait_for_reset)) + return; + + tegra_cpu_car_ops->wait_for_reset(cpu); +} + +static inline void tegra_put_cpu_in_reset(u32 cpu) +{ + if (WARN_ON(!tegra_cpu_car_ops->put_in_reset)) + return; + + tegra_cpu_car_ops->put_in_reset(cpu); +} + +static inline void tegra_cpu_out_of_reset(u32 cpu) +{ + if (WARN_ON(!tegra_cpu_car_ops->out_of_reset)) + return; + + tegra_cpu_car_ops->out_of_reset(cpu); +} + +static inline void tegra_enable_cpu_clock(u32 cpu) +{ + if (WARN_ON(!tegra_cpu_car_ops->enable_clock)) + return; + + tegra_cpu_car_ops->enable_clock(cpu); +} + +static inline void tegra_disable_cpu_clock(u32 cpu) +{ + if (WARN_ON(!tegra_cpu_car_ops->disable_clock)) + return; + + tegra_cpu_car_ops->disable_clock(cpu); +} + +void tegra20_cpu_car_ops_init(void); +void tegra30_cpu_car_ops_init(void); + +#endif /* __MACH_TEGRA_CPU_CAR_H */ |