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-rw-r--r--arch/arm/plat-omap/Kconfig4
-rw-r--r--arch/arm/plat-omap/Makefile6
-rw-r--r--arch/arm/plat-omap/clock.c67
-rw-r--r--arch/arm/plat-omap/devices.c143
-rw-r--r--arch/arm/plat-omap/dma.c6
-rw-r--r--arch/arm/plat-omap/dmtimer.c26
-rw-r--r--arch/arm/plat-omap/fb.c80
-rw-r--r--arch/arm/plat-omap/gpio.c86
-rw-r--r--arch/arm/plat-omap/mcbsp.c345
-rw-r--r--arch/arm/plat-omap/ocpi.c3
-rw-r--r--arch/arm/plat-omap/pm.c1
-rw-r--r--arch/arm/plat-omap/sleep.S452
-rw-r--r--arch/arm/plat-omap/sram.c143
-rw-r--r--arch/arm/plat-omap/timer32k.c325
14 files changed, 1104 insertions, 583 deletions
diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig
index 0887bb2a2551..ec49495e651e 100644
--- a/arch/arm/plat-omap/Kconfig
+++ b/arch/arm/plat-omap/Kconfig
@@ -70,13 +70,13 @@ config OMAP_MPU_TIMER
config OMAP_32K_TIMER
bool "Use 32KHz timer"
- depends on ARCH_OMAP16XX
+ depends on ARCH_OMAP16XX || ARCH_OMAP24XX
help
Select this option if you want to enable the OMAP 32KHz timer.
This timer saves power compared to the OMAP_MPU_TIMER, and has
support for no tick during idle. The 32KHz timer provides less
intra-tick resolution than OMAP_MPU_TIMER. The 32KHz timer is
- currently only available for OMAP-16xx.
+ currently only available for OMAP16XX and 24XX.
endchoice
diff --git a/arch/arm/plat-omap/Makefile b/arch/arm/plat-omap/Makefile
index 9ccf1943fc94..2896b4546411 100644
--- a/arch/arm/plat-omap/Makefile
+++ b/arch/arm/plat-omap/Makefile
@@ -3,16 +3,16 @@
#
# Common support
-obj-y := common.o sram.o sram-fn.o clock.o devices.o dma.o mux.o gpio.o mcbsp.o usb.o
+obj-y := common.o sram.o sram-fn.o clock.o devices.o dma.o mux.o gpio.o mcbsp.o usb.o fb.o
obj-m :=
obj-n :=
obj- :=
+obj-$(CONFIG_OMAP_32K_TIMER) += timer32k.o
+
# OCPI interconnect support for 1710, 1610 and 5912
obj-$(CONFIG_ARCH_OMAP16XX) += ocpi.o
-# Power Management
-obj-$(CONFIG_PM) += pm.o sleep.o
obj-$(CONFIG_CPU_FREQ) += cpu-omap.o
obj-$(CONFIG_OMAP_DM_TIMER) += dmtimer.o
diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index 3c2bfc0efdaf..06485c193ee3 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -21,6 +21,7 @@
#include <linux/string.h>
#include <linux/clk.h>
#include <linux/mutex.h>
+#include <linux/platform_device.h>
#include <asm/io.h>
#include <asm/semaphore.h>
@@ -37,17 +38,37 @@ static struct clk_functions *arch_clock;
* Standard clock functions defined in include/linux/clk.h
*-------------------------------------------------------------------------*/
+/*
+ * Returns a clock. Note that we first try to use device id on the bus
+ * and clock name. If this fails, we try to use clock name only.
+ */
struct clk * clk_get(struct device *dev, const char *id)
{
struct clk *p, *clk = ERR_PTR(-ENOENT);
+ int idno;
+
+ if (dev == NULL || dev->bus != &platform_bus_type)
+ idno = -1;
+ else
+ idno = to_platform_device(dev)->id;
mutex_lock(&clocks_mutex);
+
+ list_for_each_entry(p, &clocks, node) {
+ if (p->id == idno &&
+ strcmp(id, p->name) == 0 && try_module_get(p->owner)) {
+ clk = p;
+ break;
+ }
+ }
+
list_for_each_entry(p, &clocks, node) {
if (strcmp(id, p->name) == 0 && try_module_get(p->owner)) {
clk = p;
break;
}
}
+
mutex_unlock(&clocks_mutex);
return clk;
@@ -59,6 +80,9 @@ int clk_enable(struct clk *clk)
unsigned long flags;
int ret = 0;
+ if (clk == NULL || IS_ERR(clk))
+ return -EINVAL;
+
spin_lock_irqsave(&clockfw_lock, flags);
if (arch_clock->clk_enable)
ret = arch_clock->clk_enable(clk);
@@ -72,6 +96,9 @@ void clk_disable(struct clk *clk)
{
unsigned long flags;
+ if (clk == NULL || IS_ERR(clk))
+ return;
+
spin_lock_irqsave(&clockfw_lock, flags);
if (arch_clock->clk_disable)
arch_clock->clk_disable(clk);
@@ -84,6 +111,9 @@ int clk_get_usecount(struct clk *clk)
unsigned long flags;
int ret = 0;
+ if (clk == NULL || IS_ERR(clk))
+ return 0;
+
spin_lock_irqsave(&clockfw_lock, flags);
ret = clk->usecount;
spin_unlock_irqrestore(&clockfw_lock, flags);
@@ -97,6 +127,9 @@ unsigned long clk_get_rate(struct clk *clk)
unsigned long flags;
unsigned long ret = 0;
+ if (clk == NULL || IS_ERR(clk))
+ return 0;
+
spin_lock_irqsave(&clockfw_lock, flags);
ret = clk->rate;
spin_unlock_irqrestore(&clockfw_lock, flags);
@@ -121,6 +154,9 @@ long clk_round_rate(struct clk *clk, unsigned long rate)
unsigned long flags;
long ret = 0;
+ if (clk == NULL || IS_ERR(clk))
+ return ret;
+
spin_lock_irqsave(&clockfw_lock, flags);
if (arch_clock->clk_round_rate)
ret = arch_clock->clk_round_rate(clk, rate);
@@ -133,7 +169,10 @@ EXPORT_SYMBOL(clk_round_rate);
int clk_set_rate(struct clk *clk, unsigned long rate)
{
unsigned long flags;
- int ret = 0;
+ int ret = -EINVAL;
+
+ if (clk == NULL || IS_ERR(clk))
+ return ret;
spin_lock_irqsave(&clockfw_lock, flags);
if (arch_clock->clk_set_rate)
@@ -147,7 +186,10 @@ EXPORT_SYMBOL(clk_set_rate);
int clk_set_parent(struct clk *clk, struct clk *parent)
{
unsigned long flags;
- int ret = 0;
+ int ret = -EINVAL;
+
+ if (clk == NULL || IS_ERR(clk) || parent == NULL || IS_ERR(parent))
+ return ret;
spin_lock_irqsave(&clockfw_lock, flags);
if (arch_clock->clk_set_parent)
@@ -163,6 +205,9 @@ struct clk *clk_get_parent(struct clk *clk)
unsigned long flags;
struct clk * ret = NULL;
+ if (clk == NULL || IS_ERR(clk))
+ return ret;
+
spin_lock_irqsave(&clockfw_lock, flags);
if (arch_clock->clk_get_parent)
ret = arch_clock->clk_get_parent(clk);
@@ -199,6 +244,9 @@ __setup("mpurate=", omap_clk_setup);
/* Used for clocks that always have same value as the parent clock */
void followparent_recalc(struct clk *clk)
{
+ if (clk == NULL || IS_ERR(clk))
+ return;
+
clk->rate = clk->parent->rate;
}
@@ -207,6 +255,9 @@ void propagate_rate(struct clk * tclk)
{
struct clk *clkp;
+ if (tclk == NULL || IS_ERR(tclk))
+ return;
+
list_for_each_entry(clkp, &clocks, node) {
if (likely(clkp->parent != tclk))
continue;
@@ -217,6 +268,9 @@ void propagate_rate(struct clk * tclk)
int clk_register(struct clk *clk)
{
+ if (clk == NULL || IS_ERR(clk))
+ return -EINVAL;
+
mutex_lock(&clocks_mutex);
list_add(&clk->node, &clocks);
if (clk->init)
@@ -229,6 +283,9 @@ EXPORT_SYMBOL(clk_register);
void clk_unregister(struct clk *clk)
{
+ if (clk == NULL || IS_ERR(clk))
+ return;
+
mutex_lock(&clocks_mutex);
list_del(&clk->node);
mutex_unlock(&clocks_mutex);
@@ -239,6 +296,9 @@ void clk_deny_idle(struct clk *clk)
{
unsigned long flags;
+ if (clk == NULL || IS_ERR(clk))
+ return;
+
spin_lock_irqsave(&clockfw_lock, flags);
if (arch_clock->clk_deny_idle)
arch_clock->clk_deny_idle(clk);
@@ -250,6 +310,9 @@ void clk_allow_idle(struct clk *clk)
{
unsigned long flags;
+ if (clk == NULL || IS_ERR(clk))
+ return;
+
spin_lock_irqsave(&clockfw_lock, flags);
if (arch_clock->clk_allow_idle)
arch_clock->clk_allow_idle(clk);
diff --git a/arch/arm/plat-omap/devices.c b/arch/arm/plat-omap/devices.c
index 9dcce904b608..079b67deac0f 100644
--- a/arch/arm/plat-omap/devices.c
+++ b/arch/arm/plat-omap/devices.c
@@ -24,6 +24,7 @@
#include <asm/arch/board.h>
#include <asm/arch/mux.h>
#include <asm/arch/gpio.h>
+#include <asm/arch/menelaus.h>
void omap_nop_release(struct device *dev)
@@ -98,6 +99,62 @@ static inline void omap_init_i2c(void) {}
#endif
/*-------------------------------------------------------------------------*/
+#if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
+
+static void omap_init_kp(void)
+{
+ if (machine_is_omap_h2() || machine_is_omap_h3()) {
+ omap_cfg_reg(F18_1610_KBC0);
+ omap_cfg_reg(D20_1610_KBC1);
+ omap_cfg_reg(D19_1610_KBC2);
+ omap_cfg_reg(E18_1610_KBC3);
+ omap_cfg_reg(C21_1610_KBC4);
+
+ omap_cfg_reg(G18_1610_KBR0);
+ omap_cfg_reg(F19_1610_KBR1);
+ omap_cfg_reg(H14_1610_KBR2);
+ omap_cfg_reg(E20_1610_KBR3);
+ omap_cfg_reg(E19_1610_KBR4);
+ omap_cfg_reg(N19_1610_KBR5);
+ } else if (machine_is_omap_perseus2()) {
+ omap_cfg_reg(E2_730_KBR0);
+ omap_cfg_reg(J7_730_KBR1);
+ omap_cfg_reg(E1_730_KBR2);
+ omap_cfg_reg(F3_730_KBR3);
+ omap_cfg_reg(D2_730_KBR4);
+
+ omap_cfg_reg(C2_730_KBC0);
+ omap_cfg_reg(D3_730_KBC1);
+ omap_cfg_reg(E4_730_KBC2);
+ omap_cfg_reg(F4_730_KBC3);
+ omap_cfg_reg(E3_730_KBC4);
+ } else if (machine_is_omap_h4()) {
+ omap_cfg_reg(T19_24XX_KBR0);
+ omap_cfg_reg(R19_24XX_KBR1);
+ omap_cfg_reg(V18_24XX_KBR2);
+ omap_cfg_reg(M21_24XX_KBR3);
+ omap_cfg_reg(E5__24XX_KBR4);
+ if (omap_has_menelaus()) {
+ omap_cfg_reg(B3__24XX_KBR5);
+ omap_cfg_reg(AA4_24XX_KBC2);
+ omap_cfg_reg(B13_24XX_KBC6);
+ } else {
+ omap_cfg_reg(M18_24XX_KBR5);
+ omap_cfg_reg(H19_24XX_KBC2);
+ omap_cfg_reg(N19_24XX_KBC6);
+ }
+ omap_cfg_reg(R20_24XX_KBC0);
+ omap_cfg_reg(M14_24XX_KBC1);
+ omap_cfg_reg(V17_24XX_KBC3);
+ omap_cfg_reg(P21_24XX_KBC4);
+ omap_cfg_reg(L14_24XX_KBC5);
+ }
+}
+#else
+static inline void omap_init_kp(void) {}
+#endif
+
+/*-------------------------------------------------------------------------*/
#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
@@ -240,6 +297,55 @@ static void __init omap_init_mmc(void)
static inline void omap_init_mmc(void) {}
#endif
+/*-------------------------------------------------------------------------*/
+
+/* Numbering for the SPI-capable controllers when used for SPI:
+ * spi = 1
+ * uwire = 2
+ * mmc1..2 = 3..4
+ * mcbsp1..3 = 5..7
+ */
+
+#if defined(CONFIG_SPI_OMAP_UWIRE) || defined(CONFIG_SPI_OMAP_UWIRE_MODULE)
+
+#define OMAP_UWIRE_BASE 0xfffb3000
+
+static struct resource uwire_resources[] = {
+ {
+ .start = OMAP_UWIRE_BASE,
+ .end = OMAP_UWIRE_BASE + 0x20,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+static struct platform_device omap_uwire_device = {
+ .name = "omap_uwire",
+ .id = -1,
+ .dev = {
+ .release = omap_nop_release,
+ },
+ .num_resources = ARRAY_SIZE(uwire_resources),
+ .resource = uwire_resources,
+};
+
+static void omap_init_uwire(void)
+{
+ /* FIXME define and use a boot tag; not all boards will be hooking
+ * up devices to the microwire controller, and multi-board configs
+ * mean that CONFIG_SPI_OMAP_UWIRE may be configured anyway...
+ */
+
+ /* board-specific code must configure chipselects (only a few
+ * are normally used) and SCLK/SDI/SDO (each has two choices).
+ */
+ (void) platform_device_register(&omap_uwire_device);
+}
+#else
+static inline void omap_init_uwire(void) {}
+#endif
+
+/*-------------------------------------------------------------------------*/
+
#if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
#ifdef CONFIG_ARCH_OMAP24XX
@@ -310,40 +416,6 @@ static void omap_init_rng(void)
static inline void omap_init_rng(void) {}
#endif
-#if defined(CONFIG_FB_OMAP) || defined(CONFIG_FB_OMAP_MODULE)
-
-static struct omap_lcd_config omap_fb_conf;
-
-static u64 omap_fb_dma_mask = ~(u32)0;
-
-static struct platform_device omap_fb_device = {
- .name = "omapfb",
- .id = -1,
- .dev = {
- .release = omap_nop_release,
- .dma_mask = &omap_fb_dma_mask,
- .coherent_dma_mask = ~(u32)0,
- .platform_data = &omap_fb_conf,
- },
- .num_resources = 0,
-};
-
-static inline void omap_init_fb(void)
-{
- const struct omap_lcd_config *conf;
-
- conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
- if (conf != NULL)
- omap_fb_conf = *conf;
- platform_device_register(&omap_fb_device);
-}
-
-#else
-
-static inline void omap_init_fb(void) {}
-
-#endif
-
/*
* This gets called after board-specific INIT_MACHINE, and initializes most
* on-chip peripherals accessible on this board (except for few like USB):
@@ -369,9 +441,10 @@ static int __init omap_init_devices(void)
/* please keep these calls, and their implementations above,
* in alphabetical order so they're easier to sort through.
*/
- omap_init_fb();
omap_init_i2c();
+ omap_init_kp();
omap_init_mmc();
+ omap_init_uwire();
omap_init_wdt();
omap_init_rng();
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index a4e5ac77f6df..5dac4230360d 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -1258,6 +1258,11 @@ void omap_stop_lcd_dma(void)
omap_writew(w, OMAP1610_DMA_LCD_CTRL);
}
+int omap_lcd_dma_ext_running(void)
+{
+ return lcd_dma.ext_ctrl && lcd_dma.active;
+}
+
/*----------------------------------------------------------------------------*/
static int __init omap_init_dma(void)
@@ -1389,6 +1394,7 @@ EXPORT_SYMBOL(omap_free_lcd_dma);
EXPORT_SYMBOL(omap_enable_lcd_dma);
EXPORT_SYMBOL(omap_setup_lcd_dma);
EXPORT_SYMBOL(omap_stop_lcd_dma);
+EXPORT_SYMBOL(omap_lcd_dma_ext_running);
EXPORT_SYMBOL(omap_set_lcd_dma_b1);
EXPORT_SYMBOL(omap_set_lcd_dma_single_transfer);
EXPORT_SYMBOL(omap_set_lcd_dma_ext_controller);
diff --git a/arch/arm/plat-omap/dmtimer.c b/arch/arm/plat-omap/dmtimer.c
index 38d7ebf87920..eba3cb52ad87 100644
--- a/arch/arm/plat-omap/dmtimer.c
+++ b/arch/arm/plat-omap/dmtimer.c
@@ -97,6 +97,32 @@ int omap_dm_timers_active(void)
}
+/**
+ * omap_dm_timer_modify_idlect_mask - Check if any running timers use ARMXOR
+ * @inputmask: current value of idlect mask
+ */
+__u32 omap_dm_timer_modify_idlect_mask(__u32 inputmask)
+{
+ int n;
+
+ /* If ARMXOR cannot be idled this function call is unnecessary */
+ if (!(inputmask & (1 << 1)))
+ return inputmask;
+
+ /* If any active timer is using ARMXOR return modified mask */
+ for (n = 0; dm_timers[n].base; ++n)
+ if (omap_dm_timer_read_reg(&dm_timers[n], OMAP_TIMER_CTRL_REG)&
+ OMAP_TIMER_CTRL_ST) {
+ if (((omap_readl(MOD_CONF_CTRL_1)>>(n*2)) & 0x03) == 0)
+ inputmask &= ~(1 << 1);
+ else
+ inputmask &= ~(1 << 2);
+ }
+
+ return inputmask;
+}
+
+
void omap_dm_timer_set_source(struct omap_dm_timer *timer, int source)
{
int n = (timer - dm_timers) << 1;
diff --git a/arch/arm/plat-omap/fb.c b/arch/arm/plat-omap/fb.c
new file mode 100644
index 000000000000..305e9b990b71
--- /dev/null
+++ b/arch/arm/plat-omap/fb.c
@@ -0,0 +1,80 @@
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/bootmem.h>
+
+#include <asm/hardware.h>
+#include <asm/io.h>
+#include <asm/mach-types.h>
+#include <asm/mach/map.h>
+
+#include <asm/arch/board.h>
+#include <asm/arch/sram.h>
+#include <asm/arch/omapfb.h>
+
+#if defined(CONFIG_FB_OMAP) || defined(CONFIG_FB_OMAP_MODULE)
+
+static struct omapfb_platform_data omapfb_config;
+
+static u64 omap_fb_dma_mask = ~(u32)0;
+
+static struct platform_device omap_fb_device = {
+ .name = "omapfb",
+ .id = -1,
+ .dev = {
+ .dma_mask = &omap_fb_dma_mask,
+ .coherent_dma_mask = ~(u32)0,
+ .platform_data = &omapfb_config,
+ },
+ .num_resources = 0,
+};
+
+/* called from map_io */
+void omapfb_reserve_mem(void)
+{
+ const struct omap_fbmem_config *fbmem_conf;
+
+ omapfb_config.fbmem.fb_sram_start = omap_fb_sram_start;
+ omapfb_config.fbmem.fb_sram_size = omap_fb_sram_size;
+
+ fbmem_conf = omap_get_config(OMAP_TAG_FBMEM, struct omap_fbmem_config);
+
+ if (fbmem_conf != NULL) {
+ /* indicate that the bootloader already initialized the
+ * fb device, so we'll skip that part in the fb driver
+ */
+ omapfb_config.fbmem.fb_sdram_start = fbmem_conf->fb_sdram_start;
+ omapfb_config.fbmem.fb_sdram_size = fbmem_conf->fb_sdram_size;
+ if (fbmem_conf->fb_sdram_size) {
+ pr_info("Reserving %u bytes SDRAM for frame buffer\n",
+ fbmem_conf->fb_sdram_size);
+ reserve_bootmem(fbmem_conf->fb_sdram_start,
+ fbmem_conf->fb_sdram_size);
+ }
+ }
+}
+
+static inline int omap_init_fb(void)
+{
+ const struct omap_lcd_config *conf;
+
+ conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
+ if (conf == NULL)
+ return 0;
+
+ omapfb_config.lcd = *conf;
+
+ return platform_device_register(&omap_fb_device);
+}
+
+arch_initcall(omap_init_fb);
+
+#else
+
+void omapfb_reserve_mem(void) {}
+
+#endif
+
+
diff --git a/arch/arm/plat-omap/gpio.c b/arch/arm/plat-omap/gpio.c
index b4d5b9e4bfce..d3c8ea7eecfd 100644
--- a/arch/arm/plat-omap/gpio.c
+++ b/arch/arm/plat-omap/gpio.c
@@ -174,7 +174,7 @@ static int gpio_bank_count;
static inline struct gpio_bank *get_gpio_bank(int gpio)
{
#ifdef CONFIG_ARCH_OMAP15XX
- if (cpu_is_omap1510()) {
+ if (cpu_is_omap15xx()) {
if (OMAP_GPIO_IS_MPUIO(gpio))
return &gpio_bank[0];
return &gpio_bank[1];
@@ -223,7 +223,7 @@ static inline int gpio_valid(int gpio)
return 0;
}
#ifdef CONFIG_ARCH_OMAP15XX
- if (cpu_is_omap1510() && gpio < 16)
+ if (cpu_is_omap15xx() && gpio < 16)
return 0;
#endif
#if defined(CONFIG_ARCH_OMAP16XX)
@@ -402,13 +402,13 @@ static inline void set_24xx_gpio_triggering(void __iomem *base, int gpio, int tr
u32 gpio_bit = 1 << gpio;
MOD_REG_BIT(OMAP24XX_GPIO_LEVELDETECT0, gpio_bit,
- trigger & IRQT_LOW);
+ trigger & __IRQT_LOWLVL);
MOD_REG_BIT(OMAP24XX_GPIO_LEVELDETECT1, gpio_bit,
- trigger & IRQT_HIGH);
+ trigger & __IRQT_HIGHLVL);
MOD_REG_BIT(OMAP24XX_GPIO_RISINGDETECT, gpio_bit,
- trigger & IRQT_RISING);
+ trigger & __IRQT_RISEDGE);
MOD_REG_BIT(OMAP24XX_GPIO_FALLINGDETECT, gpio_bit,
- trigger & IRQT_FALLING);
+ trigger & __IRQT_FALEDGE);
/* FIXME: Possibly do 'set_irq_handler(j, do_level_IRQ)' if only level
* triggering requested. */
}
@@ -422,9 +422,9 @@ static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger)
case METHOD_MPUIO:
reg += OMAP_MPUIO_GPIO_INT_EDGE;
l = __raw_readl(reg);
- if (trigger == IRQT_RISING)
+ if (trigger & __IRQT_RISEDGE)
l |= 1 << gpio;
- else if (trigger == IRQT_FALLING)
+ else if (trigger & __IRQT_FALEDGE)
l &= ~(1 << gpio);
else
goto bad;
@@ -432,9 +432,9 @@ static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger)
case METHOD_GPIO_1510:
reg += OMAP1510_GPIO_INT_CONTROL;
l = __raw_readl(reg);
- if (trigger == IRQT_RISING)
+ if (trigger & __IRQT_RISEDGE)
l |= 1 << gpio;
- else if (trigger == IRQT_FALLING)
+ else if (trigger & __IRQT_FALEDGE)
l &= ~(1 << gpio);
else
goto bad;
@@ -446,20 +446,21 @@ static int _set_gpio_triggering(struct gpio_bank *bank, int gpio, int trigger)
reg += OMAP1610_GPIO_EDGE_CTRL1;
gpio &= 0x07;
/* We allow only edge triggering, i.e. two lowest bits */
- if (trigger & ~IRQT_BOTHEDGE)
+ if (trigger & (__IRQT_LOWLVL | __IRQT_HIGHLVL))
BUG();
- /* NOTE: knows __IRQT_{FAL,RIS}EDGE match OMAP hardware */
- trigger &= 0x03;
l = __raw_readl(reg);
l &= ~(3 << (gpio << 1));
- l |= trigger << (gpio << 1);
+ if (trigger & __IRQT_RISEDGE)
+ l |= 2 << (gpio << 1);
+ if (trigger & __IRQT_FALEDGE)
+ l |= 1 << (gpio << 1);
break;
case METHOD_GPIO_730:
reg += OMAP730_GPIO_INT_CONTROL;
l = __raw_readl(reg);
- if (trigger == IRQT_RISING)
+ if (trigger & __IRQT_RISEDGE)
l |= 1 << gpio;
- else if (trigger == IRQT_FALLING)
+ else if (trigger & __IRQT_FALEDGE)
l &= ~(1 << gpio);
else
goto bad;
@@ -491,7 +492,9 @@ static int gpio_irq_type(unsigned irq, unsigned type)
if (check_gpio(gpio) < 0)
return -EINVAL;
- if (type & (__IRQT_LOWLVL|__IRQT_HIGHLVL|IRQT_PROBE))
+ if (type & IRQT_PROBE)
+ return -EINVAL;
+ if (!cpu_is_omap24xx() && (type & (__IRQT_LOWLVL|__IRQT_HIGHLVL)))
return -EINVAL;
bank = get_gpio_bank(gpio);
@@ -755,13 +758,32 @@ static void gpio_irq_handler(unsigned int irq, struct irqdesc *desc,
if (bank->method == METHOD_GPIO_24XX)
isr_reg = bank->base + OMAP24XX_GPIO_IRQSTATUS1;
#endif
-
while(1) {
- isr = __raw_readl(isr_reg);
- _enable_gpio_irqbank(bank, isr, 0);
- _clear_gpio_irqbank(bank, isr);
- _enable_gpio_irqbank(bank, isr, 1);
- desc->chip->unmask(irq);
+ u32 isr_saved, level_mask = 0;
+
+ isr_saved = isr = __raw_readl(isr_reg);
+
+ if (cpu_is_omap15xx() && (bank->method == METHOD_MPUIO))
+ isr &= 0x0000ffff;
+
+ if (cpu_is_omap24xx())
+ level_mask =
+ __raw_readl(bank->base +
+ OMAP24XX_GPIO_LEVELDETECT0) |
+ __raw_readl(bank->base +
+ OMAP24XX_GPIO_LEVELDETECT1);
+
+ /* clear edge sensitive interrupts before handler(s) are
+ called so that we don't miss any interrupt occurred while
+ executing them */
+ _enable_gpio_irqbank(bank, isr_saved & ~level_mask, 0);
+ _clear_gpio_irqbank(bank, isr_saved & ~level_mask);
+ _enable_gpio_irqbank(bank, isr_saved & ~level_mask, 1);
+
+ /* if there is only edge sensitive GPIO pin interrupts
+ configured, we could unmask GPIO bank interrupt immediately */
+ if (!level_mask)
+ desc->chip->unmask(irq);
if (!isr)
break;
@@ -774,6 +796,20 @@ static void gpio_irq_handler(unsigned int irq, struct irqdesc *desc,
d = irq_desc + gpio_irq;
desc_handle_irq(gpio_irq, d, regs);
}
+
+ if (cpu_is_omap24xx()) {
+ /* clear level sensitive interrupts after handler(s) */
+ _enable_gpio_irqbank(bank, isr_saved & level_mask, 0);
+ _clear_gpio_irqbank(bank, isr_saved & level_mask);
+ _enable_gpio_irqbank(bank, isr_saved & level_mask, 1);
+ }
+
+ /* if bank has any level sensitive GPIO pin interrupt
+ configured, we must unmask the bank interrupt only after
+ handler(s) are executed in order to avoid spurious bank
+ interrupt */
+ if (level_mask)
+ desc->chip->unmask(irq);
}
}
@@ -848,7 +884,7 @@ static int __init _omap_gpio_init(void)
initialized = 1;
- if (cpu_is_omap1510()) {
+ if (cpu_is_omap15xx()) {
gpio_ick = clk_get(NULL, "arm_gpio_ck");
if (IS_ERR(gpio_ick))
printk("Could not get arm_gpio_ck\n");
@@ -869,7 +905,7 @@ static int __init _omap_gpio_init(void)
}
#ifdef CONFIG_ARCH_OMAP15XX
- if (cpu_is_omap1510()) {
+ if (cpu_is_omap15xx()) {
printk(KERN_INFO "OMAP1510 GPIO hardware\n");
gpio_bank_count = 2;
gpio_bank = gpio_bank_1510;
diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c
index 1cd2cace7e1b..196aac3ac329 100644
--- a/arch/arm/plat-omap/mcbsp.c
+++ b/arch/arm/plat-omap/mcbsp.c
@@ -34,7 +34,7 @@
#ifdef CONFIG_MCBSP_DEBUG
#define DBG(x...) printk(x)
#else
-#define DBG(x...) do { } while (0)
+#define DBG(x...) do { } while (0)
#endif
struct omap_mcbsp {
@@ -44,6 +44,7 @@ struct omap_mcbsp {
omap_mcbsp_word_length rx_word_length;
omap_mcbsp_word_length tx_word_length;
+ omap_mcbsp_io_type_t io_type; /* IRQ or poll */
/* IRQ based TX/RX */
int rx_irq;
int tx_irq;
@@ -64,10 +65,19 @@ struct omap_mcbsp {
};
static struct omap_mcbsp mcbsp[OMAP_MAX_MCBSP_COUNT];
+#ifdef CONFIG_ARCH_OMAP1
static struct clk *mcbsp_dsp_ck = 0;
static struct clk *mcbsp_api_ck = 0;
static struct clk *mcbsp_dspxor_ck = 0;
-
+#endif
+#ifdef CONFIG_ARCH_OMAP2
+static struct clk *mcbsp1_ick = 0;
+static struct clk *mcbsp1_fck = 0;
+static struct clk *mcbsp2_ick = 0;
+static struct clk *mcbsp2_fck = 0;
+static struct clk *sys_ck = 0;
+static struct clk *sys_clkout = 0;
+#endif
static void omap_mcbsp_dump_reg(u8 id)
{
@@ -88,7 +98,6 @@ static void omap_mcbsp_dump_reg(u8 id)
DBG("***********************\n");
}
-
static irqreturn_t omap_mcbsp_tx_irq_handler(int irq, void *dev_id, struct pt_regs *regs)
{
struct omap_mcbsp * mcbsp_tx = (struct omap_mcbsp *)(dev_id);
@@ -109,7 +118,6 @@ static irqreturn_t omap_mcbsp_rx_irq_handler(int irq, void *dev_id, struct pt_re
return IRQ_HANDLED;
}
-
static void omap_mcbsp_tx_dma_callback(int lch, u16 ch_status, void *data)
{
struct omap_mcbsp * mcbsp_dma_tx = (struct omap_mcbsp *)(data);
@@ -176,7 +184,7 @@ static int omap_mcbsp_check(unsigned int id)
return 0;
}
- if (cpu_is_omap1510() || cpu_is_omap16xx()) {
+ if (cpu_is_omap15xx() || cpu_is_omap16xx() || cpu_is_omap24xx()) {
if (id > OMAP_MAX_MCBSP_COUNT) {
printk(KERN_ERR "OMAP-McBSP: McBSP%d doesn't exist\n", id + 1);
return -1;
@@ -187,9 +195,10 @@ static int omap_mcbsp_check(unsigned int id)
return -1;
}
+#ifdef CONFIG_ARCH_OMAP1
static void omap_mcbsp_dsp_request(void)
{
- if (cpu_is_omap1510() || cpu_is_omap16xx()) {
+ if (cpu_is_omap15xx() || cpu_is_omap16xx()) {
clk_enable(mcbsp_dsp_ck);
clk_enable(mcbsp_api_ck);
@@ -207,12 +216,49 @@ static void omap_mcbsp_dsp_request(void)
static void omap_mcbsp_dsp_free(void)
{
- if (cpu_is_omap1510() || cpu_is_omap16xx()) {
+ if (cpu_is_omap15xx() || cpu_is_omap16xx()) {
clk_disable(mcbsp_dspxor_ck);
clk_disable(mcbsp_dsp_ck);
clk_disable(mcbsp_api_ck);
}
}
+#endif
+
+#ifdef CONFIG_ARCH_OMAP2
+static void omap2_mcbsp2_mux_setup(void)
+{
+ omap_cfg_reg(Y15_24XX_MCBSP2_CLKX);
+ omap_cfg_reg(R14_24XX_MCBSP2_FSX);
+ omap_cfg_reg(W15_24XX_MCBSP2_DR);
+ omap_cfg_reg(V15_24XX_MCBSP2_DX);
+ omap_cfg_reg(V14_24XX_GPIO117);
+ omap_cfg_reg(W14_24XX_SYS_CLKOUT);
+}
+#endif
+
+/*
+ * We can choose between IRQ based or polled IO.
+ * This needs to be called before omap_mcbsp_request().
+ */
+int omap_mcbsp_set_io_type(unsigned int id, omap_mcbsp_io_type_t io_type)
+{
+ if (omap_mcbsp_check(id) < 0)
+ return -EINVAL;
+
+ spin_lock(&mcbsp[id].lock);
+
+ if (!mcbsp[id].free) {
+ printk (KERN_ERR "OMAP-McBSP: McBSP%d is currently in use\n", id + 1);
+ spin_unlock(&mcbsp[id].lock);
+ return -EINVAL;
+ }
+
+ mcbsp[id].io_type = io_type;
+
+ spin_unlock(&mcbsp[id].lock);
+
+ return 0;
+}
int omap_mcbsp_request(unsigned int id)
{
@@ -221,12 +267,26 @@ int omap_mcbsp_request(unsigned int id)
if (omap_mcbsp_check(id) < 0)
return -EINVAL;
+#ifdef CONFIG_ARCH_OMAP1
/*
* On 1510, 1610 and 1710, McBSP1 and McBSP3
* are DSP public peripherals.
*/
if (id == OMAP_MCBSP1 || id == OMAP_MCBSP3)
omap_mcbsp_dsp_request();
+#endif
+
+#ifdef CONFIG_ARCH_OMAP2
+ if (cpu_is_omap24xx()) {
+ if (id == OMAP_MCBSP1) {
+ clk_enable(mcbsp1_ick);
+ clk_enable(mcbsp1_fck);
+ } else {
+ clk_enable(mcbsp2_ick);
+ clk_enable(mcbsp2_fck);
+ }
+ }
+#endif
spin_lock(&mcbsp[id].lock);
if (!mcbsp[id].free) {
@@ -238,30 +298,33 @@ int omap_mcbsp_request(unsigned int id)
mcbsp[id].free = 0;
spin_unlock(&mcbsp[id].lock);
- /* We need to get IRQs here */
- err = request_irq(mcbsp[id].tx_irq, omap_mcbsp_tx_irq_handler, 0,
- "McBSP",
- (void *) (&mcbsp[id]));
- if (err != 0) {
- printk(KERN_ERR "OMAP-McBSP: Unable to request TX IRQ %d for McBSP%d\n",
- mcbsp[id].tx_irq, mcbsp[id].id);
- return err;
- }
+ if (mcbsp[id].io_type == OMAP_MCBSP_IRQ_IO) {
+ /* We need to get IRQs here */
+ err = request_irq(mcbsp[id].tx_irq, omap_mcbsp_tx_irq_handler, 0,
+ "McBSP",
+ (void *) (&mcbsp[id]));
+ if (err != 0) {
+ printk(KERN_ERR "OMAP-McBSP: Unable to request TX IRQ %d for McBSP%d\n",
+ mcbsp[id].tx_irq, mcbsp[id].id);
+ return err;
+ }
- init_completion(&(mcbsp[id].tx_irq_completion));
+ init_completion(&(mcbsp[id].tx_irq_completion));
- err = request_irq(mcbsp[id].rx_irq, omap_mcbsp_rx_irq_handler, 0,
- "McBSP",
- (void *) (&mcbsp[id]));
- if (err != 0) {
- printk(KERN_ERR "OMAP-McBSP: Unable to request RX IRQ %d for McBSP%d\n",
- mcbsp[id].rx_irq, mcbsp[id].id);
- free_irq(mcbsp[id].tx_irq, (void *) (&mcbsp[id]));
- return err;
+ err = request_irq(mcbsp[id].rx_irq, omap_mcbsp_rx_irq_handler, 0,
+ "McBSP",
+ (void *) (&mcbsp[id]));
+ if (err != 0) {
+ printk(KERN_ERR "OMAP-McBSP: Unable to request RX IRQ %d for McBSP%d\n",
+ mcbsp[id].rx_irq, mcbsp[id].id);
+ free_irq(mcbsp[id].tx_irq, (void *) (&mcbsp[id]));
+ return err;
+ }
+
+ init_completion(&(mcbsp[id].rx_irq_completion));
}
- init_completion(&(mcbsp[id].rx_irq_completion));
return 0;
}
@@ -271,8 +334,24 @@ void omap_mcbsp_free(unsigned int id)
if (omap_mcbsp_check(id) < 0)
return;
- if (id == OMAP_MCBSP1 || id == OMAP_MCBSP3)
- omap_mcbsp_dsp_free();
+#ifdef CONFIG_ARCH_OMAP1
+ if (cpu_class_is_omap1()) {
+ if (id == OMAP_MCBSP1 || id == OMAP_MCBSP3)
+ omap_mcbsp_dsp_free();
+ }
+#endif
+
+#ifdef CONFIG_ARCH_OMAP2
+ if (cpu_is_omap24xx()) {
+ if (id == OMAP_MCBSP1) {
+ clk_disable(mcbsp1_ick);
+ clk_disable(mcbsp1_fck);
+ } else {
+ clk_disable(mcbsp2_ick);
+ clk_disable(mcbsp2_fck);
+ }
+ }
+#endif
spin_lock(&mcbsp[id].lock);
if (mcbsp[id].free) {
@@ -284,9 +363,11 @@ void omap_mcbsp_free(unsigned int id)
mcbsp[id].free = 1;
spin_unlock(&mcbsp[id].lock);
- /* Free IRQs */
- free_irq(mcbsp[id].rx_irq, (void *) (&mcbsp[id]));
- free_irq(mcbsp[id].tx_irq, (void *) (&mcbsp[id]));
+ if (mcbsp[id].io_type == OMAP_MCBSP_IRQ_IO) {
+ /* Free IRQs */
+ free_irq(mcbsp[id].rx_irq, (void *) (&mcbsp[id]));
+ free_irq(mcbsp[id].tx_irq, (void *) (&mcbsp[id]));
+ }
}
/*
@@ -461,6 +542,115 @@ u32 omap_mcbsp_recv_word(unsigned int id)
}
+int omap_mcbsp_spi_master_xmit_word_poll(unsigned int id, u32 word)
+{
+ u32 io_base = mcbsp[id].io_base;
+ omap_mcbsp_word_length tx_word_length = mcbsp[id].tx_word_length;
+ omap_mcbsp_word_length rx_word_length = mcbsp[id].rx_word_length;
+ u16 spcr2, spcr1, attempts = 0, word_lsb, word_msb = 0;
+
+ if (tx_word_length != rx_word_length)
+ return -EINVAL;
+
+ /* First we wait for the transmitter to be ready */
+ spcr2 = OMAP_MCBSP_READ(io_base, SPCR2);
+ while (!(spcr2 & XRDY)) {
+ spcr2 = OMAP_MCBSP_READ(io_base, SPCR2);
+ if (attempts++ > 1000) {
+ /* We must reset the transmitter */
+ OMAP_MCBSP_WRITE(io_base, SPCR2, spcr2 & (~XRST));
+ udelay(10);
+ OMAP_MCBSP_WRITE(io_base, SPCR2, spcr2 | XRST);
+ udelay(10);
+ printk("McBSP transmitter not ready\n");
+ return -EAGAIN;
+ }
+ }
+
+ /* Now we can push the data */
+ if (tx_word_length > OMAP_MCBSP_WORD_16)
+ OMAP_MCBSP_WRITE(io_base, DXR2, word >> 16);
+ OMAP_MCBSP_WRITE(io_base, DXR1, word & 0xffff);
+
+ /* We wait for the receiver to be ready */
+ spcr1 = OMAP_MCBSP_READ(io_base, SPCR1);
+ while (!(spcr1 & RRDY)) {
+ spcr1 = OMAP_MCBSP_READ(io_base, SPCR1);
+ if (attempts++ > 1000) {
+ /* We must reset the receiver */
+ OMAP_MCBSP_WRITE(io_base, SPCR1, spcr1 & (~RRST));
+ udelay(10);
+ OMAP_MCBSP_WRITE(io_base, SPCR1, spcr1 | RRST);
+ udelay(10);
+ printk("McBSP receiver not ready\n");
+ return -EAGAIN;
+ }
+ }
+
+ /* Receiver is ready, let's read the dummy data */
+ if (rx_word_length > OMAP_MCBSP_WORD_16)
+ word_msb = OMAP_MCBSP_READ(io_base, DRR2);
+ word_lsb = OMAP_MCBSP_READ(io_base, DRR1);
+
+ return 0;
+}
+
+int omap_mcbsp_spi_master_recv_word_poll(unsigned int id, u32 * word)
+{
+ u32 io_base = mcbsp[id].io_base, clock_word = 0;
+ omap_mcbsp_word_length tx_word_length = mcbsp[id].tx_word_length;
+ omap_mcbsp_word_length rx_word_length = mcbsp[id].rx_word_length;
+ u16 spcr2, spcr1, attempts = 0, word_lsb, word_msb = 0;
+
+ if (tx_word_length != rx_word_length)
+ return -EINVAL;
+
+ /* First we wait for the transmitter to be ready */
+ spcr2 = OMAP_MCBSP_READ(io_base, SPCR2);
+ while (!(spcr2 & XRDY)) {
+ spcr2 = OMAP_MCBSP_READ(io_base, SPCR2);
+ if (attempts++ > 1000) {
+ /* We must reset the transmitter */
+ OMAP_MCBSP_WRITE(io_base, SPCR2, spcr2 & (~XRST));
+ udelay(10);
+ OMAP_MCBSP_WRITE(io_base, SPCR2, spcr2 | XRST);
+ udelay(10);
+ printk("McBSP transmitter not ready\n");
+ return -EAGAIN;
+ }
+ }
+
+ /* We first need to enable the bus clock */
+ if (tx_word_length > OMAP_MCBSP_WORD_16)
+ OMAP_MCBSP_WRITE(io_base, DXR2, clock_word >> 16);
+ OMAP_MCBSP_WRITE(io_base, DXR1, clock_word & 0xffff);
+
+ /* We wait for the receiver to be ready */
+ spcr1 = OMAP_MCBSP_READ(io_base, SPCR1);
+ while (!(spcr1 & RRDY)) {
+ spcr1 = OMAP_MCBSP_READ(io_base, SPCR1);
+ if (attempts++ > 1000) {
+ /* We must reset the receiver */
+ OMAP_MCBSP_WRITE(io_base, SPCR1, spcr1 & (~RRST));
+ udelay(10);
+ OMAP_MCBSP_WRITE(io_base, SPCR1, spcr1 | RRST);
+ udelay(10);
+ printk("McBSP receiver not ready\n");
+ return -EAGAIN;
+ }
+ }
+
+ /* Receiver is ready, there is something for us */
+ if (rx_word_length > OMAP_MCBSP_WORD_16)
+ word_msb = OMAP_MCBSP_READ(io_base, DRR2);
+ word_lsb = OMAP_MCBSP_READ(io_base, DRR1);
+
+ word[0] = (word_lsb | (word_msb << 16));
+
+ return 0;
+}
+
+
/*
* Simple DMA based buffer rx/tx routines.
* Nothing fancy, just a single buffer tx/rx through DMA.
@@ -471,6 +661,9 @@ u32 omap_mcbsp_recv_word(unsigned int id)
int omap_mcbsp_xmit_buffer(unsigned int id, dma_addr_t buffer, unsigned int length)
{
int dma_tx_ch;
+ int src_port = 0;
+ int dest_port = 0;
+ int sync_dev = 0;
if (omap_mcbsp_check(id) < 0)
return -EINVAL;
@@ -487,20 +680,27 @@ int omap_mcbsp_xmit_buffer(unsigned int id, dma_addr_t buffer, unsigned int leng
init_completion(&(mcbsp[id].tx_dma_completion));
+ if (cpu_class_is_omap1()) {
+ src_port = OMAP_DMA_PORT_TIPB;
+ dest_port = OMAP_DMA_PORT_EMIFF;
+ }
+ if (cpu_is_omap24xx())
+ sync_dev = mcbsp[id].dma_tx_sync;
+
omap_set_dma_transfer_params(mcbsp[id].dma_tx_lch,
OMAP_DMA_DATA_TYPE_S16,
length >> 1, 1,
OMAP_DMA_SYNC_ELEMENT,
- 0, 0);
+ sync_dev, 0);
omap_set_dma_dest_params(mcbsp[id].dma_tx_lch,
- OMAP_DMA_PORT_TIPB,
+ src_port,
OMAP_DMA_AMODE_CONSTANT,
mcbsp[id].io_base + OMAP_MCBSP_REG_DXR1,
0, 0);
omap_set_dma_src_params(mcbsp[id].dma_tx_lch,
- OMAP_DMA_PORT_EMIFF,
+ dest_port,
OMAP_DMA_AMODE_POST_INC,
buffer,
0, 0);
@@ -514,6 +714,9 @@ int omap_mcbsp_xmit_buffer(unsigned int id, dma_addr_t buffer, unsigned int leng
int omap_mcbsp_recv_buffer(unsigned int id, dma_addr_t buffer, unsigned int length)
{
int dma_rx_ch;
+ int src_port = 0;
+ int dest_port = 0;
+ int sync_dev = 0;
if (omap_mcbsp_check(id) < 0)
return -EINVAL;
@@ -530,20 +733,27 @@ int omap_mcbsp_recv_buffer(unsigned int id, dma_addr_t buffer, unsigned int leng
init_completion(&(mcbsp[id].rx_dma_completion));
+ if (cpu_class_is_omap1()) {
+ src_port = OMAP_DMA_PORT_TIPB;
+ dest_port = OMAP_DMA_PORT_EMIFF;
+ }
+ if (cpu_is_omap24xx())
+ sync_dev = mcbsp[id].dma_rx_sync;
+
omap_set_dma_transfer_params(mcbsp[id].dma_rx_lch,
OMAP_DMA_DATA_TYPE_S16,
length >> 1, 1,
OMAP_DMA_SYNC_ELEMENT,
- 0, 0);
+ sync_dev, 0);
omap_set_dma_src_params(mcbsp[id].dma_rx_lch,
- OMAP_DMA_PORT_TIPB,
+ src_port,
OMAP_DMA_AMODE_CONSTANT,
mcbsp[id].io_base + OMAP_MCBSP_REG_DRR1,
0, 0);
omap_set_dma_dest_params(mcbsp[id].dma_rx_lch,
- OMAP_DMA_PORT_EMIFF,
+ dest_port,
OMAP_DMA_AMODE_POST_INC,
buffer,
0, 0);
@@ -688,6 +898,23 @@ static const struct omap_mcbsp_info mcbsp_1610[] = {
};
#endif
+#if defined(CONFIG_ARCH_OMAP24XX)
+static const struct omap_mcbsp_info mcbsp_24xx[] = {
+ [0] = { .virt_base = IO_ADDRESS(OMAP24XX_MCBSP1_BASE),
+ .dma_rx_sync = OMAP24XX_DMA_MCBSP1_RX,
+ .dma_tx_sync = OMAP24XX_DMA_MCBSP1_TX,
+ .rx_irq = INT_24XX_MCBSP1_IRQ_RX,
+ .tx_irq = INT_24XX_MCBSP1_IRQ_TX,
+ },
+ [1] = { .virt_base = IO_ADDRESS(OMAP24XX_MCBSP2_BASE),
+ .dma_rx_sync = OMAP24XX_DMA_MCBSP2_RX,
+ .dma_tx_sync = OMAP24XX_DMA_MCBSP2_TX,
+ .rx_irq = INT_24XX_MCBSP2_IRQ_RX,
+ .tx_irq = INT_24XX_MCBSP2_IRQ_TX,
+ },
+};
+#endif
+
static int __init omap_mcbsp_init(void)
{
int mcbsp_count = 0, i;
@@ -695,6 +922,7 @@ static int __init omap_mcbsp_init(void)
printk("Initializing OMAP McBSP system\n");
+#ifdef CONFIG_ARCH_OMAP1
mcbsp_dsp_ck = clk_get(0, "dsp_ck");
if (IS_ERR(mcbsp_dsp_ck)) {
printk(KERN_ERR "mcbsp: could not acquire dsp_ck handle.\n");
@@ -710,6 +938,29 @@ static int __init omap_mcbsp_init(void)
printk(KERN_ERR "mcbsp: could not acquire dspxor_ck handle.\n");
return PTR_ERR(mcbsp_dspxor_ck);
}
+#endif
+#ifdef CONFIG_ARCH_OMAP2
+ mcbsp1_ick = clk_get(0, "mcbsp1_ick");
+ if (IS_ERR(mcbsp1_ick)) {
+ printk(KERN_ERR "mcbsp: could not acquire mcbsp1_ick handle.\n");
+ return PTR_ERR(mcbsp1_ick);
+ }
+ mcbsp1_fck = clk_get(0, "mcbsp1_fck");
+ if (IS_ERR(mcbsp1_fck)) {
+ printk(KERN_ERR "mcbsp: could not acquire mcbsp1_fck handle.\n");
+ return PTR_ERR(mcbsp1_fck);
+ }
+ mcbsp2_ick = clk_get(0, "mcbsp2_ick");
+ if (IS_ERR(mcbsp2_ick)) {
+ printk(KERN_ERR "mcbsp: could not acquire mcbsp2_ick handle.\n");
+ return PTR_ERR(mcbsp2_ick);
+ }
+ mcbsp2_fck = clk_get(0, "mcbsp2_fck");
+ if (IS_ERR(mcbsp2_fck)) {
+ printk(KERN_ERR "mcbsp: could not acquire mcbsp2_fck handle.\n");
+ return PTR_ERR(mcbsp2_fck);
+ }
+#endif
#ifdef CONFIG_ARCH_OMAP730
if (cpu_is_omap730()) {
@@ -718,7 +969,7 @@ static int __init omap_mcbsp_init(void)
}
#endif
#ifdef CONFIG_ARCH_OMAP15XX
- if (cpu_is_omap1510()) {
+ if (cpu_is_omap15xx()) {
mcbsp_info = mcbsp_1510;
mcbsp_count = ARRAY_SIZE(mcbsp_1510);
}
@@ -729,6 +980,19 @@ static int __init omap_mcbsp_init(void)
mcbsp_count = ARRAY_SIZE(mcbsp_1610);
}
#endif
+#if defined(CONFIG_ARCH_OMAP24XX)
+ if (cpu_is_omap24xx()) {
+ mcbsp_info = mcbsp_24xx;
+ mcbsp_count = ARRAY_SIZE(mcbsp_24xx);
+
+ /* REVISIT: where's the right place? */
+ omap2_mcbsp2_mux_setup();
+ sys_ck = clk_get(0, "sys_ck");
+ sys_clkout = clk_get(0, "sys_clkout");
+ clk_set_parent(sys_clkout, sys_ck);
+ clk_enable(sys_clkout);
+ }
+#endif
for (i = 0; i < OMAP_MAX_MCBSP_COUNT ; i++) {
if (i >= mcbsp_count) {
mcbsp[i].io_base = 0;
@@ -741,6 +1005,7 @@ static int __init omap_mcbsp_init(void)
mcbsp[i].dma_rx_lch = -1;
mcbsp[i].io_base = mcbsp_info[i].virt_base;
+ mcbsp[i].io_type = OMAP_MCBSP_IRQ_IO; /* Default I/O is IRQ based */
mcbsp[i].tx_irq = mcbsp_info[i].tx_irq;
mcbsp[i].rx_irq = mcbsp_info[i].rx_irq;
mcbsp[i].dma_rx_sync = mcbsp_info[i].dma_rx_sync;
@@ -751,11 +1016,11 @@ static int __init omap_mcbsp_init(void)
return 0;
}
-
arch_initcall(omap_mcbsp_init);
EXPORT_SYMBOL(omap_mcbsp_config);
EXPORT_SYMBOL(omap_mcbsp_request);
+EXPORT_SYMBOL(omap_mcbsp_set_io_type);
EXPORT_SYMBOL(omap_mcbsp_free);
EXPORT_SYMBOL(omap_mcbsp_start);
EXPORT_SYMBOL(omap_mcbsp_stop);
@@ -763,4 +1028,6 @@ EXPORT_SYMBOL(omap_mcbsp_xmit_word);
EXPORT_SYMBOL(omap_mcbsp_recv_word);
EXPORT_SYMBOL(omap_mcbsp_xmit_buffer);
EXPORT_SYMBOL(omap_mcbsp_recv_buffer);
+EXPORT_SYMBOL(omap_mcbsp_spi_master_xmit_word_poll);
+EXPORT_SYMBOL(omap_mcbsp_spi_master_recv_word_poll);
EXPORT_SYMBOL(omap_mcbsp_set_spi_mode);
diff --git a/arch/arm/plat-omap/ocpi.c b/arch/arm/plat-omap/ocpi.c
index 5cc6775c789c..37792d43738b 100644
--- a/arch/arm/plat-omap/ocpi.c
+++ b/arch/arm/plat-omap/ocpi.c
@@ -62,9 +62,6 @@ int ocpi_enable(void)
if (!cpu_is_omap16xx())
return -ENODEV;
- /* Make sure there's clock for OCPI */
- clk_enable(ocpi_ck);
-
/* Enable access for OHCI in OCPI */
val = omap_readl(OCPI_PROT);
val &= ~0xff;
diff --git a/arch/arm/plat-omap/pm.c b/arch/arm/plat-omap/pm.c
index 093efd786f21..1a24e2c10714 100644
--- a/arch/arm/plat-omap/pm.c
+++ b/arch/arm/plat-omap/pm.c
@@ -38,6 +38,7 @@
#include <linux/pm.h>
#include <linux/sched.h>
#include <linux/proc_fs.h>
+#include <linux/pm.h>
#include <linux/interrupt.h>
#include <asm/io.h>
diff --git a/arch/arm/plat-omap/sleep.S b/arch/arm/plat-omap/sleep.S
deleted file mode 100644
index 4cd7d292f854..000000000000
--- a/arch/arm/plat-omap/sleep.S
+++ /dev/null
@@ -1,452 +0,0 @@
-/*
- * linux/arch/arm/plat-omap/sleep.S
- *
- * Low-level OMAP730/1510/1610 sleep/wakeUp support
- *
- * Initial SA1110 code:
- * Copyright (c) 2001 Cliff Brake <cbrake@accelent.com>
- *
- * Adapted for PXA by Nicolas Pitre:
- * Copyright (c) 2002 Monta Vista Software, Inc.
- *
- * Support for OMAP1510/1610 by Dirk Behme <dirk.behme@de.bosch.com>
- *
- * 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; either version 2 of the License, or (at your
- * option) any later version.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * 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.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-#include <linux/config.h>
-#include <linux/linkage.h>
-#include <asm/assembler.h>
-#include <asm/arch/io.h>
-#include <asm/arch/pm.h>
-
- .text
-
-/*
- * Forces OMAP into idle state
- *
- * omapXXXX_idle_loop_suspend()
- *
- * Note: This code get's copied to internal SRAM at boot. When the OMAP
- * wakes up it continues execution at the point it went to sleep.
- *
- * Note: Because of slightly different configuration values we have
- * processor specific functions here.
- */
-
-#if defined(CONFIG_ARCH_OMAP730)
-ENTRY(omap730_idle_loop_suspend)
-
- stmfd sp!, {r0 - r12, lr} @ save registers on stack
-
- @ load base address of ARM_IDLECT1 and ARM_IDLECT2
- mov r4, #CLKGEN_REG_ASM_BASE & 0xff000000
- orr r4, r4, #CLKGEN_REG_ASM_BASE & 0x00ff0000
- orr r4, r4, #CLKGEN_REG_ASM_BASE & 0x0000ff00
-
- @ turn off clock domains
- @ get ARM_IDLECT2 into r2
- ldrh r2, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
- mov r5, #OMAP730_IDLECT2_SLEEP_VAL & 0xff
- orr r5, r5, #OMAP730_IDLECT2_SLEEP_VAL & 0xff00
- strh r5, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
-
- @ request ARM idle
- @ get ARM_IDLECT1 into r1
- ldrh r1, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
- orr r3, r1, #OMAP730_IDLE_LOOP_REQUEST & 0xffff
- strh r3, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
-
- mov r5, #IDLE_WAIT_CYCLES & 0xff
- orr r5, r5, #IDLE_WAIT_CYCLES & 0xff00
-l_730: subs r5, r5, #1
- bne l_730
-/*
- * Let's wait for the next clock tick to wake us up.
- */
- mov r0, #0
- mcr p15, 0, r0, c7, c0, 4 @ wait for interrupt
-/*
- * omap730_idle_loop_suspend()'s resume point.
- *
- * It will just start executing here, so we'll restore stuff from the
- * stack, reset the ARM_IDLECT1 and ARM_IDLECT2.
- */
-
- @ restore ARM_IDLECT1 and ARM_IDLECT2 and return
- @ r1 has ARM_IDLECT1 and r2 still has ARM_IDLECT2
- strh r2, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
- strh r1, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
-
- ldmfd sp!, {r0 - r12, pc} @ restore regs and return
-
-ENTRY(omap730_idle_loop_suspend_sz)
- .word . - omap730_idle_loop_suspend
-#endif /* CONFIG_ARCH_OMAP730 */
-
-#ifdef CONFIG_ARCH_OMAP15XX
-ENTRY(omap1510_idle_loop_suspend)
-
- stmfd sp!, {r0 - r12, lr} @ save registers on stack
-
- @ load base address of ARM_IDLECT1 and ARM_IDLECT2
- mov r4, #CLKGEN_REG_ASM_BASE & 0xff000000
- orr r4, r4, #CLKGEN_REG_ASM_BASE & 0x00ff0000
- orr r4, r4, #CLKGEN_REG_ASM_BASE & 0x0000ff00
-
- @ turn off clock domains
- @ get ARM_IDLECT2 into r2
- ldrh r2, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
- mov r5, #OMAP1510_IDLE_CLOCK_DOMAINS & 0xff
- orr r5, r5, #OMAP1510_IDLE_CLOCK_DOMAINS & 0xff00
- strh r5, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
-
- @ request ARM idle
- @ get ARM_IDLECT1 into r1
- ldrh r1, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
- orr r3, r1, #OMAP1510_IDLE_LOOP_REQUEST & 0xffff
- strh r3, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
-
- mov r5, #IDLE_WAIT_CYCLES & 0xff
- orr r5, r5, #IDLE_WAIT_CYCLES & 0xff00
-l_1510: subs r5, r5, #1
- bne l_1510
-/*
- * Let's wait for the next clock tick to wake us up.
- */
- mov r0, #0
- mcr p15, 0, r0, c7, c0, 4 @ wait for interrupt
-/*
- * omap1510_idle_loop_suspend()'s resume point.
- *
- * It will just start executing here, so we'll restore stuff from the
- * stack, reset the ARM_IDLECT1 and ARM_IDLECT2.
- */
-
- @ restore ARM_IDLECT1 and ARM_IDLECT2 and return
- @ r1 has ARM_IDLECT1 and r2 still has ARM_IDLECT2
- strh r2, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
- strh r1, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
-
- ldmfd sp!, {r0 - r12, pc} @ restore regs and return
-
-ENTRY(omap1510_idle_loop_suspend_sz)
- .word . - omap1510_idle_loop_suspend
-#endif /* CONFIG_ARCH_OMAP15XX */
-
-#if defined(CONFIG_ARCH_OMAP16XX)
-ENTRY(omap1610_idle_loop_suspend)
-
- stmfd sp!, {r0 - r12, lr} @ save registers on stack
-
- @ load base address of ARM_IDLECT1 and ARM_IDLECT2
- mov r4, #CLKGEN_REG_ASM_BASE & 0xff000000
- orr r4, r4, #CLKGEN_REG_ASM_BASE & 0x00ff0000
- orr r4, r4, #CLKGEN_REG_ASM_BASE & 0x0000ff00
-
- @ turn off clock domains
- @ get ARM_IDLECT2 into r2
- ldrh r2, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
- mov r5, #OMAP1610_IDLECT2_SLEEP_VAL & 0xff
- orr r5, r5, #OMAP1610_IDLECT2_SLEEP_VAL & 0xff00
- strh r5, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
-
- @ request ARM idle
- @ get ARM_IDLECT1 into r1
- ldrh r1, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
- orr r3, r1, #OMAP1610_IDLE_LOOP_REQUEST & 0xffff
- strh r3, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
-
- mov r5, #IDLE_WAIT_CYCLES & 0xff
- orr r5, r5, #IDLE_WAIT_CYCLES & 0xff00
-l_1610: subs r5, r5, #1
- bne l_1610
-/*
- * Let's wait for the next clock tick to wake us up.
- */
- mov r0, #0
- mcr p15, 0, r0, c7, c0, 4 @ wait for interrupt
-/*
- * omap1610_idle_loop_suspend()'s resume point.
- *
- * It will just start executing here, so we'll restore stuff from the
- * stack, reset the ARM_IDLECT1 and ARM_IDLECT2.
- */
-
- @ restore ARM_IDLECT1 and ARM_IDLECT2 and return
- @ r1 has ARM_IDLECT1 and r2 still has ARM_IDLECT2
- strh r2, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
- strh r1, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
-
- ldmfd sp!, {r0 - r12, pc} @ restore regs and return
-
-ENTRY(omap1610_idle_loop_suspend_sz)
- .word . - omap1610_idle_loop_suspend
-#endif /* CONFIG_ARCH_OMAP16XX */
-
-/*
- * Forces OMAP into deep sleep state
- *
- * omapXXXX_cpu_suspend()
- *
- * The values of the registers ARM_IDLECT1 and ARM_IDLECT2 are passed
- * as arg0 and arg1 from caller. arg0 is stored in register r0 and arg1
- * in register r1.
- *
- * Note: This code get's copied to internal SRAM at boot. When the OMAP
- * wakes up it continues execution at the point it went to sleep.
- *
- * Note: Because of errata work arounds we have processor specific functions
- * here. They are mostly the same, but slightly different.
- *
- */
-
-#if defined(CONFIG_ARCH_OMAP730)
-ENTRY(omap730_cpu_suspend)
-
- @ save registers on stack
- stmfd sp!, {r0 - r12, lr}
-
- @ Drain write cache
- mov r4, #0
- mcr p15, 0, r0, c7, c10, 4
- nop
-
- @ load base address of Traffic Controller
- mov r6, #TCMIF_ASM_BASE & 0xff000000
- orr r6, r6, #TCMIF_ASM_BASE & 0x00ff0000
- orr r6, r6, #TCMIF_ASM_BASE & 0x0000ff00
-
- @ prepare to put SDRAM into self-refresh manually
- ldr r7, [r6, #EMIFF_SDRAM_CONFIG_ASM_OFFSET & 0xff]
- orr r9, r7, #SELF_REFRESH_MODE & 0xff000000
- orr r9, r9, #SELF_REFRESH_MODE & 0x000000ff
- str r9, [r6, #EMIFF_SDRAM_CONFIG_ASM_OFFSET & 0xff]
-
- @ prepare to put EMIFS to Sleep
- ldr r8, [r6, #EMIFS_CONFIG_ASM_OFFSET & 0xff]
- orr r9, r8, #IDLE_EMIFS_REQUEST & 0xff
- str r9, [r6, #EMIFS_CONFIG_ASM_OFFSET & 0xff]
-
- @ load base address of ARM_IDLECT1 and ARM_IDLECT2
- mov r4, #CLKGEN_REG_ASM_BASE & 0xff000000
- orr r4, r4, #CLKGEN_REG_ASM_BASE & 0x00ff0000
- orr r4, r4, #CLKGEN_REG_ASM_BASE & 0x0000ff00
-
- @ turn off clock domains
- @ do not disable PERCK (0x04)
- mov r5, #OMAP730_IDLECT2_SLEEP_VAL & 0xff
- orr r5, r5, #OMAP730_IDLECT2_SLEEP_VAL & 0xff00
- strh r5, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
-
- @ request ARM idle
- mov r3, #OMAP730_IDLECT1_SLEEP_VAL & 0xff
- orr r3, r3, #OMAP730_IDLECT1_SLEEP_VAL & 0xff00
- strh r3, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
-
- @ disable instruction cache
- mrc p15, 0, r9, c1, c0, 0
- bic r2, r9, #0x1000
- mcr p15, 0, r2, c1, c0, 0
- nop
-
-/*
- * Let's wait for the next wake up event to wake us up. r0 can't be
- * used here because r0 holds ARM_IDLECT1
- */
- mov r2, #0
- mcr p15, 0, r2, c7, c0, 4 @ wait for interrupt
-/*
- * omap730_cpu_suspend()'s resume point.
- *
- * It will just start executing here, so we'll restore stuff from the
- * stack.
- */
- @ re-enable Icache
- mcr p15, 0, r9, c1, c0, 0
-
- @ reset the ARM_IDLECT1 and ARM_IDLECT2.
- strh r1, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
- strh r0, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
-
- @ Restore EMIFF controls
- str r7, [r6, #EMIFF_SDRAM_CONFIG_ASM_OFFSET & 0xff]
- str r8, [r6, #EMIFS_CONFIG_ASM_OFFSET & 0xff]
-
- @ restore regs and return
- ldmfd sp!, {r0 - r12, pc}
-
-ENTRY(omap730_cpu_suspend_sz)
- .word . - omap730_cpu_suspend
-#endif /* CONFIG_ARCH_OMAP730 */
-
-#ifdef CONFIG_ARCH_OMAP15XX
-ENTRY(omap1510_cpu_suspend)
-
- @ save registers on stack
- stmfd sp!, {r0 - r12, lr}
-
- @ load base address of Traffic Controller
- mov r4, #TCMIF_ASM_BASE & 0xff000000
- orr r4, r4, #TCMIF_ASM_BASE & 0x00ff0000
- orr r4, r4, #TCMIF_ASM_BASE & 0x0000ff00
-
- @ work around errata of OMAP1510 PDE bit for TC shut down
- @ clear PDE bit
- ldr r5, [r4, #EMIFS_CONFIG_ASM_OFFSET & 0xff]
- bic r5, r5, #PDE_BIT & 0xff
- str r5, [r4, #EMIFS_CONFIG_ASM_OFFSET & 0xff]
-
- @ set PWD_EN bit
- and r5, r5, #PWD_EN_BIT & 0xff
- str r5, [r4, #EMIFS_CONFIG_ASM_OFFSET & 0xff]
-
- @ prepare to put SDRAM into self-refresh manually
- ldr r5, [r4, #EMIFF_SDRAM_CONFIG_ASM_OFFSET & 0xff]
- orr r5, r5, #SELF_REFRESH_MODE & 0xff000000
- orr r5, r5, #SELF_REFRESH_MODE & 0x000000ff
- str r5, [r4, #EMIFF_SDRAM_CONFIG_ASM_OFFSET & 0xff]
-
- @ prepare to put EMIFS to Sleep
- ldr r5, [r4, #EMIFS_CONFIG_ASM_OFFSET & 0xff]
- orr r5, r5, #IDLE_EMIFS_REQUEST & 0xff
- str r5, [r4, #EMIFS_CONFIG_ASM_OFFSET & 0xff]
-
- @ load base address of ARM_IDLECT1 and ARM_IDLECT2
- mov r4, #CLKGEN_REG_ASM_BASE & 0xff000000
- orr r4, r4, #CLKGEN_REG_ASM_BASE & 0x00ff0000
- orr r4, r4, #CLKGEN_REG_ASM_BASE & 0x0000ff00
-
- @ turn off clock domains
- mov r5, #OMAP1510_IDLE_CLOCK_DOMAINS & 0xff
- orr r5, r5, #OMAP1510_IDLE_CLOCK_DOMAINS & 0xff00
- strh r5, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
-
- @ request ARM idle
- mov r3, #OMAP1510_DEEP_SLEEP_REQUEST & 0xff
- orr r3, r3, #OMAP1510_DEEP_SLEEP_REQUEST & 0xff00
- strh r3, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
-
- mov r5, #IDLE_WAIT_CYCLES & 0xff
- orr r5, r5, #IDLE_WAIT_CYCLES & 0xff00
-l_1510_2:
- subs r5, r5, #1
- bne l_1510_2
-/*
- * Let's wait for the next wake up event to wake us up. r0 can't be
- * used here because r0 holds ARM_IDLECT1
- */
- mov r2, #0
- mcr p15, 0, r2, c7, c0, 4 @ wait for interrupt
-/*
- * omap1510_cpu_suspend()'s resume point.
- *
- * It will just start executing here, so we'll restore stuff from the
- * stack, reset the ARM_IDLECT1 and ARM_IDLECT2.
- */
- strh r1, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
- strh r0, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
-
- @ restore regs and return
- ldmfd sp!, {r0 - r12, pc}
-
-ENTRY(omap1510_cpu_suspend_sz)
- .word . - omap1510_cpu_suspend
-#endif /* CONFIG_ARCH_OMAP15XX */
-
-#if defined(CONFIG_ARCH_OMAP16XX)
-ENTRY(omap1610_cpu_suspend)
-
- @ save registers on stack
- stmfd sp!, {r0 - r12, lr}
-
- @ Drain write cache
- mov r4, #0
- mcr p15, 0, r0, c7, c10, 4
- nop
-
- @ load base address of Traffic Controller
- mov r6, #TCMIF_ASM_BASE & 0xff000000
- orr r6, r6, #TCMIF_ASM_BASE & 0x00ff0000
- orr r6, r6, #TCMIF_ASM_BASE & 0x0000ff00
-
- @ prepare to put SDRAM into self-refresh manually
- ldr r7, [r6, #EMIFF_SDRAM_CONFIG_ASM_OFFSET & 0xff]
- orr r9, r7, #SELF_REFRESH_MODE & 0xff000000
- orr r9, r9, #SELF_REFRESH_MODE & 0x000000ff
- str r9, [r6, #EMIFF_SDRAM_CONFIG_ASM_OFFSET & 0xff]
-
- @ prepare to put EMIFS to Sleep
- ldr r8, [r6, #EMIFS_CONFIG_ASM_OFFSET & 0xff]
- orr r9, r8, #IDLE_EMIFS_REQUEST & 0xff
- str r9, [r6, #EMIFS_CONFIG_ASM_OFFSET & 0xff]
-
- @ load base address of ARM_IDLECT1 and ARM_IDLECT2
- mov r4, #CLKGEN_REG_ASM_BASE & 0xff000000
- orr r4, r4, #CLKGEN_REG_ASM_BASE & 0x00ff0000
- orr r4, r4, #CLKGEN_REG_ASM_BASE & 0x0000ff00
-
- @ turn off clock domains
- @ do not disable PERCK (0x04)
- mov r5, #OMAP1610_IDLECT2_SLEEP_VAL & 0xff
- orr r5, r5, #OMAP1610_IDLECT2_SLEEP_VAL & 0xff00
- strh r5, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
-
- @ request ARM idle
- mov r3, #OMAP1610_IDLECT1_SLEEP_VAL & 0xff
- orr r3, r3, #OMAP1610_IDLECT1_SLEEP_VAL & 0xff00
- strh r3, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
-
- @ disable instruction cache
- mrc p15, 0, r9, c1, c0, 0
- bic r2, r9, #0x1000
- mcr p15, 0, r2, c1, c0, 0
- nop
-
-/*
- * Let's wait for the next wake up event to wake us up. r0 can't be
- * used here because r0 holds ARM_IDLECT1
- */
- mov r2, #0
- mcr p15, 0, r2, c7, c0, 4 @ wait for interrupt
-/*
- * omap1610_cpu_suspend()'s resume point.
- *
- * It will just start executing here, so we'll restore stuff from the
- * stack.
- */
- @ re-enable Icache
- mcr p15, 0, r9, c1, c0, 0
-
- @ reset the ARM_IDLECT1 and ARM_IDLECT2.
- strh r1, [r4, #ARM_IDLECT2_ASM_OFFSET & 0xff]
- strh r0, [r4, #ARM_IDLECT1_ASM_OFFSET & 0xff]
-
- @ Restore EMIFF controls
- str r7, [r6, #EMIFF_SDRAM_CONFIG_ASM_OFFSET & 0xff]
- str r8, [r6, #EMIFS_CONFIG_ASM_OFFSET & 0xff]
-
- @ restore regs and return
- ldmfd sp!, {r0 - r12, pc}
-
-ENTRY(omap1610_cpu_suspend_sz)
- .word . - omap1610_cpu_suspend
-#endif /* CONFIG_ARCH_OMAP16XX */
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index ee82763b02b8..b7bf09b1b412 100644
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -16,24 +16,94 @@
#include <linux/kernel.h>
#include <linux/init.h>
-#include <asm/mach/map.h>
#include <asm/tlb.h>
#include <asm/io.h>
#include <asm/cacheflush.h>
+#include <asm/mach/map.h>
+
#include <asm/arch/sram.h>
+#include <asm/arch/board.h>
#define OMAP1_SRAM_PA 0x20000000
#define OMAP1_SRAM_VA 0xd0000000
#define OMAP2_SRAM_PA 0x40200000
+#define OMAP2_SRAM_PUB_PA 0x4020f800
#define OMAP2_SRAM_VA 0xd0000000
+#define OMAP2_SRAM_PUB_VA 0xd0000800
+#if defined(CONFIG_ARCH_OMAP24XX)
+#define SRAM_BOOTLOADER_SZ 0x00
+#else
#define SRAM_BOOTLOADER_SZ 0x80
+#endif
+
+#define VA_REQINFOPERM0 IO_ADDRESS(0x68005048)
+#define VA_READPERM0 IO_ADDRESS(0x68005050)
+#define VA_WRITEPERM0 IO_ADDRESS(0x68005058)
+#define VA_CONTROL_STAT IO_ADDRESS(0x480002F8)
+#define GP_DEVICE 0x300
+#define TYPE_MASK 0x700
+
+#define ROUND_DOWN(value,boundary) ((value) & (~((boundary)-1)))
static unsigned long omap_sram_base;
static unsigned long omap_sram_size;
static unsigned long omap_sram_ceil;
+unsigned long omap_fb_sram_start;
+unsigned long omap_fb_sram_size;
+
+/* Depending on the target RAMFS firewall setup, the public usable amount of
+ * SRAM varies. The default accessable size for all device types is 2k. A GP
+ * device allows ARM11 but not other initators for full size. This
+ * functionality seems ok until some nice security API happens.
+ */
+static int is_sram_locked(void)
+{
+ int type = 0;
+
+ if (cpu_is_omap242x())
+ type = __raw_readl(VA_CONTROL_STAT) & TYPE_MASK;
+
+ if (type == GP_DEVICE) {
+ /* RAMFW: R/W access to all initators for all qualifier sets */
+ if (cpu_is_omap242x()) {
+ __raw_writel(0xFF, VA_REQINFOPERM0); /* all q-vects */
+ __raw_writel(0xCFDE, VA_READPERM0); /* all i-read */
+ __raw_writel(0xCFDE, VA_WRITEPERM0); /* all i-write */
+ }
+ return 0;
+ } else
+ return 1; /* assume locked with no PPA or security driver */
+}
+
+void get_fb_sram_conf(unsigned long start_avail, unsigned size_avail,
+ unsigned long *start, unsigned long *size)
+{
+ const struct omap_fbmem_config *fbmem_conf;
+
+ fbmem_conf = omap_get_config(OMAP_TAG_FBMEM, struct omap_fbmem_config);
+ if (fbmem_conf != NULL) {
+ *start = fbmem_conf->fb_sram_start;
+ *size = fbmem_conf->fb_sram_size;
+ } else {
+ *size = 0;
+ *start = 0;
+ }
+
+ if (*size && (
+ *start < start_avail ||
+ *start + *size > start_avail + size_avail)) {
+ printk(KERN_ERR "invalid FB SRAM configuration\n");
+ *start = start_avail;
+ *size = size_avail;
+ }
+
+ if (*size)
+ pr_info("Reserving %lu bytes SRAM for frame buffer\n", *size);
+}
+
/*
* The amount of SRAM depends on the core type.
* Note that we cannot try to test for SRAM here because writes
@@ -42,26 +112,45 @@ static unsigned long omap_sram_ceil;
*/
void __init omap_detect_sram(void)
{
- if (!cpu_is_omap24xx())
+ unsigned long sram_start;
+
+ if (cpu_is_omap24xx()) {
+ if (is_sram_locked()) {
+ omap_sram_base = OMAP2_SRAM_PUB_VA;
+ sram_start = OMAP2_SRAM_PUB_PA;
+ omap_sram_size = 0x800; /* 2K */
+ } else {
+ omap_sram_base = OMAP2_SRAM_VA;
+ sram_start = OMAP2_SRAM_PA;
+ if (cpu_is_omap242x())
+ omap_sram_size = 0xa0000; /* 640K */
+ else if (cpu_is_omap243x())
+ omap_sram_size = 0x10000; /* 64K */
+ }
+ } else {
omap_sram_base = OMAP1_SRAM_VA;
- else
- omap_sram_base = OMAP2_SRAM_VA;
-
- if (cpu_is_omap730())
- omap_sram_size = 0x32000; /* 200K */
- else if (cpu_is_omap15xx())
- omap_sram_size = 0x30000; /* 192K */
- else if (cpu_is_omap1610() || cpu_is_omap1621() || cpu_is_omap1710())
- omap_sram_size = 0x4000; /* 16K */
- else if (cpu_is_omap1611())
- omap_sram_size = 0x3e800; /* 250K */
- else if (cpu_is_omap2420())
- omap_sram_size = 0xa0014; /* 640K */
- else {
- printk(KERN_ERR "Could not detect SRAM size\n");
- omap_sram_size = 0x4000;
+ sram_start = OMAP1_SRAM_PA;
+
+ if (cpu_is_omap730())
+ omap_sram_size = 0x32000; /* 200K */
+ else if (cpu_is_omap15xx())
+ omap_sram_size = 0x30000; /* 192K */
+ else if (cpu_is_omap1610() || cpu_is_omap1621() ||
+ cpu_is_omap1710())
+ omap_sram_size = 0x4000; /* 16K */
+ else if (cpu_is_omap1611())
+ omap_sram_size = 0x3e800; /* 250K */
+ else {
+ printk(KERN_ERR "Could not detect SRAM size\n");
+ omap_sram_size = 0x4000;
+ }
}
-
+ get_fb_sram_conf(sram_start + SRAM_BOOTLOADER_SZ,
+ omap_sram_size - SRAM_BOOTLOADER_SZ,
+ &omap_fb_sram_start, &omap_fb_sram_size);
+ if (omap_fb_sram_size)
+ omap_sram_size -= sram_start + omap_sram_size -
+ omap_fb_sram_start;
omap_sram_ceil = omap_sram_base + omap_sram_size;
}
@@ -80,12 +169,20 @@ static struct map_desc omap_sram_io_desc[] __initdata = {
*/
void __init omap_map_sram(void)
{
+ unsigned long base;
+
if (omap_sram_size == 0)
return;
if (cpu_is_omap24xx()) {
omap_sram_io_desc[0].virtual = OMAP2_SRAM_VA;
- omap_sram_io_desc[0].pfn = __phys_to_pfn(OMAP2_SRAM_PA);
+
+ if (is_sram_locked())
+ base = OMAP2_SRAM_PUB_PA;
+ else
+ base = OMAP2_SRAM_PA;
+ base = ROUND_DOWN(base, PAGE_SIZE);
+ omap_sram_io_desc[0].pfn = __phys_to_pfn(base);
}
omap_sram_io_desc[0].length = (omap_sram_size + PAGE_SIZE-1)/PAGE_SIZE;
@@ -93,7 +190,8 @@ void __init omap_map_sram(void)
iotable_init(omap_sram_io_desc, ARRAY_SIZE(omap_sram_io_desc));
printk(KERN_INFO "SRAM: Mapped pa 0x%08lx to va 0x%08lx size: 0x%lx\n",
- omap_sram_io_desc[0].pfn, omap_sram_io_desc[0].virtual,
+ __pfn_to_phys(omap_sram_io_desc[0].pfn),
+ omap_sram_io_desc[0].virtual,
omap_sram_io_desc[0].length);
/*
@@ -118,8 +216,9 @@ void * omap_sram_push(void * start, unsigned long size)
printk(KERN_ERR "Not enough space in SRAM\n");
return NULL;
}
+
omap_sram_ceil -= size;
- omap_sram_ceil &= ~0x3;
+ omap_sram_ceil = ROUND_DOWN(omap_sram_ceil, sizeof(void *));
memcpy((void *)omap_sram_ceil, start, size);
return (void *)omap_sram_ceil;
diff --git a/arch/arm/plat-omap/timer32k.c b/arch/arm/plat-omap/timer32k.c
new file mode 100644
index 000000000000..b2a943bf11ef
--- /dev/null
+++ b/arch/arm/plat-omap/timer32k.c
@@ -0,0 +1,325 @@
+/*
+ * linux/arch/arm/plat-omap/timer32k.c
+ *
+ * OMAP 32K Timer
+ *
+ * Copyright (C) 2004 - 2005 Nokia Corporation
+ * Partial timer rewrite and additional dynamic tick timer support by
+ * Tony Lindgen <tony@atomide.com> and
+ * Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com>
+ *
+ * MPU timer code based on the older MPU timer code for OMAP
+ * Copyright (C) 2000 RidgeRun, Inc.
+ * Author: Greg Lonnon <glonnon@ridgerun.com>
+ *
+ * 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; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * 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.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+
+#include <asm/system.h>
+#include <asm/hardware.h>
+#include <asm/io.h>
+#include <asm/leds.h>
+#include <asm/irq.h>
+#include <asm/mach/irq.h>
+#include <asm/mach/time.h>
+
+struct sys_timer omap_timer;
+
+/*
+ * ---------------------------------------------------------------------------
+ * 32KHz OS timer
+ *
+ * This currently works only on 16xx, as 1510 does not have the continuous
+ * 32KHz synchronous timer. The 32KHz synchronous timer is used to keep track
+ * of time in addition to the 32KHz OS timer. Using only the 32KHz OS timer
+ * on 1510 would be possible, but the timer would not be as accurate as
+ * with the 32KHz synchronized timer.
+ * ---------------------------------------------------------------------------
+ */
+
+#if defined(CONFIG_ARCH_OMAP16XX)
+#define TIMER_32K_SYNCHRONIZED 0xfffbc410
+#elif defined(CONFIG_ARCH_OMAP24XX)
+#define TIMER_32K_SYNCHRONIZED 0x48004010
+#else
+#error OMAP 32KHz timer does not currently work on 15XX!
+#endif
+
+/* 16xx specific defines */
+#define OMAP1_32K_TIMER_BASE 0xfffb9000
+#define OMAP1_32K_TIMER_CR 0x08
+#define OMAP1_32K_TIMER_TVR 0x00
+#define OMAP1_32K_TIMER_TCR 0x04
+
+/* 24xx specific defines */
+#define OMAP2_GP_TIMER_BASE 0x48028000
+#define CM_CLKSEL_WKUP 0x48008440
+#define GP_TIMER_TIDR 0x00
+#define GP_TIMER_TISR 0x18
+#define GP_TIMER_TIER 0x1c
+#define GP_TIMER_TCLR 0x24
+#define GP_TIMER_TCRR 0x28
+#define GP_TIMER_TLDR 0x2c
+#define GP_TIMER_TTGR 0x30
+#define GP_TIMER_TSICR 0x40
+
+#define OMAP_32K_TICKS_PER_HZ (32768 / HZ)
+
+/*
+ * TRM says 1 / HZ = ( TVR + 1) / 32768, so TRV = (32768 / HZ) - 1
+ * so with HZ = 128, TVR = 255.
+ */
+#define OMAP_32K_TIMER_TICK_PERIOD ((32768 / HZ) - 1)
+
+#define JIFFIES_TO_HW_TICKS(nr_jiffies, clock_rate) \
+ (((nr_jiffies) * (clock_rate)) / HZ)
+
+static inline void omap_32k_timer_write(int val, int reg)
+{
+ if (cpu_class_is_omap1())
+ omap_writew(val, OMAP1_32K_TIMER_BASE + reg);
+
+ if (cpu_is_omap24xx())
+ omap_writel(val, OMAP2_GP_TIMER_BASE + reg);
+}
+
+static inline unsigned long omap_32k_timer_read(int reg)
+{
+ if (cpu_class_is_omap1())
+ return omap_readl(OMAP1_32K_TIMER_BASE + reg) & 0xffffff;
+
+ if (cpu_is_omap24xx())
+ return omap_readl(OMAP2_GP_TIMER_BASE + reg);
+}
+
+/*
+ * The 32KHz synchronized timer is an additional timer on 16xx.
+ * It is always running.
+ */
+static inline unsigned long omap_32k_sync_timer_read(void)
+{
+ return omap_readl(TIMER_32K_SYNCHRONIZED);
+}
+
+static inline void omap_32k_timer_start(unsigned long load_val)
+{
+ if (cpu_class_is_omap1()) {
+ omap_32k_timer_write(load_val, OMAP1_32K_TIMER_TVR);
+ omap_32k_timer_write(0x0f, OMAP1_32K_TIMER_CR);
+ }
+
+ if (cpu_is_omap24xx()) {
+ omap_32k_timer_write(0xffffffff - load_val, GP_TIMER_TCRR);
+ omap_32k_timer_write((1 << 1), GP_TIMER_TIER);
+ omap_32k_timer_write((1 << 1) | 1, GP_TIMER_TCLR);
+ }
+}
+
+static inline void omap_32k_timer_stop(void)
+{
+ if (cpu_class_is_omap1())
+ omap_32k_timer_write(0x0, OMAP1_32K_TIMER_CR);
+
+ if (cpu_is_omap24xx())
+ omap_32k_timer_write(0x0, GP_TIMER_TCLR);
+}
+
+/*
+ * Rounds down to nearest usec. Note that this will overflow for larger values.
+ */
+static inline unsigned long omap_32k_ticks_to_usecs(unsigned long ticks_32k)
+{
+ return (ticks_32k * 5*5*5*5*5*5) >> 9;
+}
+
+/*
+ * Rounds down to nearest nsec.
+ */
+static inline unsigned long long
+omap_32k_ticks_to_nsecs(unsigned long ticks_32k)
+{
+ return (unsigned long long) ticks_32k * 1000 * 5*5*5*5*5*5 >> 9;
+}
+
+static unsigned long omap_32k_last_tick = 0;
+
+/*
+ * Returns elapsed usecs since last 32k timer interrupt
+ */
+static unsigned long omap_32k_timer_gettimeoffset(void)
+{
+ unsigned long now = omap_32k_sync_timer_read();
+ return omap_32k_ticks_to_usecs(now - omap_32k_last_tick);
+}
+
+/*
+ * Returns current time from boot in nsecs. It's OK for this to wrap
+ * around for now, as it's just a relative time stamp.
+ */
+unsigned long long sched_clock(void)
+{
+ return omap_32k_ticks_to_nsecs(omap_32k_sync_timer_read());
+}
+
+/*
+ * Timer interrupt for 32KHz timer. When dynamic tick is enabled, this
+ * function is also called from other interrupts to remove latency
+ * issues with dynamic tick. In the dynamic tick case, we need to lock
+ * with irqsave.
+ */
+static irqreturn_t omap_32k_timer_interrupt(int irq, void *dev_id,
+ struct pt_regs *regs)
+{
+ unsigned long flags;
+ unsigned long now;
+
+ write_seqlock_irqsave(&xtime_lock, flags);
+
+ if (cpu_is_omap24xx()) {
+ u32 status = omap_32k_timer_read(GP_TIMER_TISR);
+ omap_32k_timer_write(status, GP_TIMER_TISR);
+ }
+
+ now = omap_32k_sync_timer_read();
+
+ while (now - omap_32k_last_tick >= OMAP_32K_TICKS_PER_HZ) {
+ omap_32k_last_tick += OMAP_32K_TICKS_PER_HZ;
+ timer_tick(regs);
+ }
+
+ /* Restart timer so we don't drift off due to modulo or dynamic tick.
+ * By default we program the next timer to be continuous to avoid
+ * latencies during high system load. During dynamic tick operation the
+ * continuous timer can be overridden from pm_idle to be longer.
+ */
+ omap_32k_timer_start(omap_32k_last_tick + OMAP_32K_TICKS_PER_HZ - now);
+ write_sequnlock_irqrestore(&xtime_lock, flags);
+
+ return IRQ_HANDLED;
+}
+
+#ifdef CONFIG_NO_IDLE_HZ
+/*
+ * Programs the next timer interrupt needed. Called when dynamic tick is
+ * enabled, and to reprogram the ticks to skip from pm_idle. Note that
+ * we can keep the timer continuous, and don't need to set it to run in
+ * one-shot mode. This is because the timer will get reprogrammed again
+ * after next interrupt.
+ */
+void omap_32k_timer_reprogram(unsigned long next_tick)
+{
+ omap_32k_timer_start(JIFFIES_TO_HW_TICKS(next_tick, 32768) + 1);
+}
+
+static struct irqaction omap_32k_timer_irq;
+extern struct timer_update_handler timer_update;
+
+static int omap_32k_timer_enable_dyn_tick(void)
+{
+ /* No need to reprogram timer, just use the next interrupt */
+ return 0;
+}
+
+static int omap_32k_timer_disable_dyn_tick(void)
+{
+ omap_32k_timer_start(OMAP_32K_TIMER_TICK_PERIOD);
+ return 0;
+}
+
+static struct dyn_tick_timer omap_dyn_tick_timer = {
+ .enable = omap_32k_timer_enable_dyn_tick,
+ .disable = omap_32k_timer_disable_dyn_tick,
+ .reprogram = omap_32k_timer_reprogram,
+ .handler = omap_32k_timer_interrupt,
+};
+#endif /* CONFIG_NO_IDLE_HZ */
+
+static struct irqaction omap_32k_timer_irq = {
+ .name = "32KHz timer",
+ .flags = SA_INTERRUPT | SA_TIMER,
+ .handler = omap_32k_timer_interrupt,
+};
+
+static struct clk * gpt1_ick;
+static struct clk * gpt1_fck;
+
+static __init void omap_init_32k_timer(void)
+{
+#ifdef CONFIG_NO_IDLE_HZ
+ omap_timer.dyn_tick = &omap_dyn_tick_timer;
+#endif
+
+ if (cpu_class_is_omap1())
+ setup_irq(INT_OS_TIMER, &omap_32k_timer_irq);
+ if (cpu_is_omap24xx())
+ setup_irq(37, &omap_32k_timer_irq);
+ omap_timer.offset = omap_32k_timer_gettimeoffset;
+ omap_32k_last_tick = omap_32k_sync_timer_read();
+
+ /* REVISIT: Check 24xx TIOCP_CFG settings after idle works */
+ if (cpu_is_omap24xx()) {
+ omap_32k_timer_write(0, GP_TIMER_TCLR);
+ omap_writel(0, CM_CLKSEL_WKUP); /* 32KHz clock source */
+
+ gpt1_ick = clk_get(NULL, "gpt1_ick");
+ if (IS_ERR(gpt1_ick))
+ printk(KERN_ERR "Could not get gpt1_ick\n");
+ else
+ clk_enable(gpt1_ick);
+
+ gpt1_fck = clk_get(NULL, "gpt1_fck");
+ if (IS_ERR(gpt1_fck))
+ printk(KERN_ERR "Could not get gpt1_fck\n");
+ else
+ clk_enable(gpt1_fck);
+
+ mdelay(100); /* Wait for clocks to stabilize */
+
+ omap_32k_timer_write(0x7, GP_TIMER_TISR);
+ }
+
+ omap_32k_timer_start(OMAP_32K_TIMER_TICK_PERIOD);
+}
+
+/*
+ * ---------------------------------------------------------------------------
+ * Timer initialization
+ * ---------------------------------------------------------------------------
+ */
+static void __init omap_timer_init(void)
+{
+ omap_init_32k_timer();
+}
+
+struct sys_timer omap_timer = {
+ .init = omap_timer_init,
+ .offset = NULL, /* Initialized later */
+};
generated by cgit v1.2.3 (git 2.0.4) at 2024-12-28 20:03:49 +0000