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authorBen Dooks <ben-linux@fluff.org>2010-05-19 18:04:11 +0900
committerBen Dooks <ben-linux@fluff.org>2010-05-19 18:04:11 +0900
commit32457942b90aabb9242b450f02d18d9c8d982916 (patch)
tree6472b77016f83f2ada7a7e2ca83a9803f313f1a8 /arch/arm/plat-s3c24xx
parent6071399674e813d797d9f458ec8913b86c85398e (diff)
parentf64bea4318a73e833d0a9b8400cc0f6cee957da3 (diff)
ARM: Merge for-2635/fb-updates1
Merge branch 'for-2635/fb-updates1' into for-linus/samsung2
Diffstat (limited to 'arch/arm/plat-s3c24xx')
-rw-r--r--arch/arm/plat-s3c24xx/Kconfig6
-rw-r--r--arch/arm/plat-s3c24xx/Makefile1
-rw-r--r--arch/arm/plat-s3c24xx/cpu.c21
-rw-r--r--arch/arm/plat-s3c24xx/include/plat/pll.h25
-rw-r--r--arch/arm/plat-s3c24xx/include/plat/s3c2416.h31
-rw-r--r--arch/arm/plat-s3c24xx/include/plat/s3c2443.h19
-rw-r--r--arch/arm/plat-s3c24xx/s3c2410-clock.c15
-rw-r--r--arch/arm/plat-s3c24xx/s3c2443-clock.c472
8 files changed, 578 insertions, 12 deletions
diff --git a/arch/arm/plat-s3c24xx/Kconfig b/arch/arm/plat-s3c24xx/Kconfig
index a830fad6f89e..3ce8f010b3c6 100644
--- a/arch/arm/plat-s3c24xx/Kconfig
+++ b/arch/arm/plat-s3c24xx/Kconfig
@@ -45,6 +45,12 @@ config S3C2410_CLOCK
Clock code for the S3C2410, and similar processors which
is currently includes the S3C2410, S3C2440, S3C2442.
+config S3C2443_CLOCK
+ bool
+ help
+ Clock code for the S3C2443 and similar processors, which includes
+ the S3C2416 and S3C2450.
+
config S3C24XX_DCLK
bool
help
diff --git a/arch/arm/plat-s3c24xx/Makefile b/arch/arm/plat-s3c24xx/Makefile
index c2237c41141f..44aea8868f89 100644
--- a/arch/arm/plat-s3c24xx/Makefile
+++ b/arch/arm/plat-s3c24xx/Makefile
@@ -30,6 +30,7 @@ obj-$(CONFIG_PM) += pm.o
obj-$(CONFIG_PM) += irq-pm.o
obj-$(CONFIG_PM) += sleep.o
obj-$(CONFIG_S3C2410_CLOCK) += s3c2410-clock.o
+obj-$(CONFIG_S3C2443_CLOCK) += s3c2443-clock.o
obj-$(CONFIG_S3C2410_DMA) += dma.o
obj-$(CONFIG_S3C2410_IOTIMING) += s3c2410-iotiming.o
obj-$(CONFIG_S3C2412_IOTIMING) += s3c2412-iotiming.o
diff --git a/arch/arm/plat-s3c24xx/cpu.c b/arch/arm/plat-s3c24xx/cpu.c
index 9ca64df35bf6..76d0858c3cbb 100644
--- a/arch/arm/plat-s3c24xx/cpu.c
+++ b/arch/arm/plat-s3c24xx/cpu.c
@@ -49,6 +49,7 @@
#include <plat/s3c2400.h>
#include <plat/s3c2410.h>
#include <plat/s3c2412.h>
+#include <plat/s3c2416.h>
#include <plat/s3c244x.h>
#include <plat/s3c2443.h>
@@ -57,6 +58,7 @@
static const char name_s3c2400[] = "S3C2400";
static const char name_s3c2410[] = "S3C2410";
static const char name_s3c2412[] = "S3C2412";
+static const char name_s3c2416[] = "S3C2416/S3C2450";
static const char name_s3c2440[] = "S3C2440";
static const char name_s3c2442[] = "S3C2442";
static const char name_s3c2442b[] = "S3C2442B";
@@ -137,6 +139,15 @@ static struct cpu_table cpu_ids[] __initdata = {
.init = s3c2412_init,
.name = name_s3c2412,
},
+ { /* a strange version of the s3c2416 */
+ .idcode = 0x32450003,
+ .idmask = 0xffffffff,
+ .map_io = s3c2416_map_io,
+ .init_clocks = s3c2416_init_clocks,
+ .init_uarts = s3c2416_init_uarts,
+ .init = s3c2416_init,
+ .name = name_s3c2416,
+ },
{
.idcode = 0x32443001,
.idmask = 0xffffffff,
@@ -170,6 +181,16 @@ static struct map_desc s3c_iodesc[] __initdata = {
static unsigned long s3c24xx_read_idcode_v5(void)
{
+#if defined(CONFIG_CPU_S3C2416)
+ /* s3c2416 is v5, with S3C24XX_GSTATUS1 instead of S3C2412_GSTATUS1 */
+
+ u32 gs = __raw_readl(S3C24XX_GSTATUS1);
+
+ /* test for s3c2416 or similar device */
+ if ((gs >> 16) == 0x3245)
+ return gs;
+#endif
+
#if defined(CONFIG_CPU_S3C2412) || defined(CONFIG_CPU_S3C2413)
return __raw_readl(S3C2412_GSTATUS1);
#else
diff --git a/arch/arm/plat-s3c24xx/include/plat/pll.h b/arch/arm/plat-s3c24xx/include/plat/pll.h
index 7ea8bffa7a9c..005729a1077a 100644
--- a/arch/arm/plat-s3c24xx/include/plat/pll.h
+++ b/arch/arm/plat-s3c24xx/include/plat/pll.h
@@ -35,3 +35,28 @@ s3c24xx_get_pll(unsigned int pllval, unsigned int baseclk)
return (unsigned int)fvco;
}
+
+#define S3C2416_PLL_M_SHIFT (14)
+#define S3C2416_PLL_P_SHIFT (5)
+#define S3C2416_PLL_S_MASK (7)
+#define S3C2416_PLL_M_MASK ((1 << 10) - 1)
+#define S3C2416_PLL_P_MASK (63)
+
+static inline unsigned int
+s3c2416_get_pll(unsigned int pllval, unsigned int baseclk)
+{
+ unsigned int m, p, s;
+ uint64_t fvco;
+
+ m = pllval >> S3C2416_PLL_M_SHIFT;
+ p = pllval >> S3C2416_PLL_P_SHIFT;
+
+ s = pllval & S3C2416_PLL_S_MASK;
+ m &= S3C2416_PLL_M_MASK;
+ p &= S3C2416_PLL_P_MASK;
+
+ fvco = (uint64_t)baseclk * m;
+ do_div(fvco, (p << s));
+
+ return (unsigned int)fvco;
+}
diff --git a/arch/arm/plat-s3c24xx/include/plat/s3c2416.h b/arch/arm/plat-s3c24xx/include/plat/s3c2416.h
new file mode 100644
index 000000000000..dc3c0907d221
--- /dev/null
+++ b/arch/arm/plat-s3c24xx/include/plat/s3c2416.h
@@ -0,0 +1,31 @@
+/* linux/include/asm-arm/plat-s3c24xx/s3c2443.h
+ *
+ * Copyright (c) 2009 Yauhen Kharuzhy <jekhor@gmail.com>
+ *
+ * Header file for s3c2416 cpu support
+ *
+ * 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.
+*/
+
+#ifdef CONFIG_CPU_S3C2416
+
+struct s3c2410_uartcfg;
+
+extern int s3c2416_init(void);
+
+extern void s3c2416_map_io(void);
+
+extern void s3c2416_init_uarts(struct s3c2410_uartcfg *cfg, int no);
+
+extern void s3c2416_init_clocks(int xtal);
+
+extern int s3c2416_baseclk_add(void);
+
+#else
+#define s3c2416_init_clocks NULL
+#define s3c2416_init_uarts NULL
+#define s3c2416_map_io NULL
+#define s3c2416_init NULL
+#endif
diff --git a/arch/arm/plat-s3c24xx/include/plat/s3c2443.h b/arch/arm/plat-s3c24xx/include/plat/s3c2443.h
index 815b107ed890..a19715feb798 100644
--- a/arch/arm/plat-s3c24xx/include/plat/s3c2443.h
+++ b/arch/arm/plat-s3c24xx/include/plat/s3c2443.h
@@ -30,3 +30,22 @@ extern int s3c2443_baseclk_add(void);
#define s3c2443_map_io NULL
#define s3c2443_init NULL
#endif
+
+/* common code used by s3c2443 and others.
+ * note, not to be used outside of arch/arm/mach-s3c* */
+
+struct clk; /* some files don't need clk.h otherwise */
+
+typedef unsigned int (*pll_fn)(unsigned int reg, unsigned int base);
+typedef unsigned int (*fdiv_fn)(unsigned long clkcon0);
+
+extern void s3c2443_common_setup_clocks(pll_fn get_mpll, fdiv_fn fdiv);
+extern void s3c2443_common_init_clocks(int xtal, pll_fn get_mpll, fdiv_fn fdiv);
+
+extern int s3c2443_clkcon_enable_h(struct clk *clk, int enable);
+extern int s3c2443_clkcon_enable_p(struct clk *clk, int enable);
+extern int s3c2443_clkcon_enable_s(struct clk *clk, int enable);
+
+extern struct clksrc_clk clk_epllref;
+extern struct clksrc_clk clk_esysclk;
+extern struct clksrc_clk clk_msysclk;
diff --git a/arch/arm/plat-s3c24xx/s3c2410-clock.c b/arch/arm/plat-s3c24xx/s3c2410-clock.c
index b61bdb793734..9ecc5d913679 100644
--- a/arch/arm/plat-s3c24xx/s3c2410-clock.c
+++ b/arch/arm/plat-s3c24xx/s3c2410-clock.c
@@ -87,7 +87,7 @@ static int s3c2410_upll_enable(struct clk *clk, int enable)
/* standard clock definitions */
-static struct clk init_clocks_disable[] = {
+static struct clk init_clocks_off[] = {
{
.name = "nand",
.id = -1,
@@ -249,17 +249,8 @@ int __init s3c2410_baseclk_add(void)
/* install (and disable) the clocks we do not need immediately */
- clkp = init_clocks_disable;
- for (ptr = 0; ptr < ARRAY_SIZE(init_clocks_disable); ptr++, clkp++) {
-
- ret = s3c24xx_register_clock(clkp);
- if (ret < 0) {
- printk(KERN_ERR "Failed to register clock %s (%d)\n",
- clkp->name, ret);
- }
-
- s3c2410_clkcon_enable(clkp, 0);
- }
+ s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
+ s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
/* show the clock-slow value */
diff --git a/arch/arm/plat-s3c24xx/s3c2443-clock.c b/arch/arm/plat-s3c24xx/s3c2443-clock.c
new file mode 100644
index 000000000000..461f070eb62d
--- /dev/null
+++ b/arch/arm/plat-s3c24xx/s3c2443-clock.c
@@ -0,0 +1,472 @@
+/* linux/arch/arm/plat-s3c24xx/s3c2443-clock.c
+ *
+ * Copyright (c) 2007, 2010 Simtec Electronics
+ * Ben Dooks <ben@simtec.co.uk>
+ *
+ * S3C2443 Clock control suport - common code
+ */
+
+#include <linux/init.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <mach/regs-s3c2443-clock.h>
+
+#include <plat/s3c2443.h>
+#include <plat/clock.h>
+#include <plat/clock-clksrc.h>
+#include <plat/cpu.h>
+
+#include <plat/cpu-freq.h>
+
+
+static int s3c2443_gate(void __iomem *reg, struct clk *clk, int enable)
+{
+ u32 ctrlbit = clk->ctrlbit;
+ u32 con = __raw_readl(reg);
+
+ if (enable)
+ con |= ctrlbit;
+ else
+ con &= ~ctrlbit;
+
+ __raw_writel(con, reg);
+ return 0;
+}
+
+int s3c2443_clkcon_enable_h(struct clk *clk, int enable)
+{
+ return s3c2443_gate(S3C2443_HCLKCON, clk, enable);
+}
+
+int s3c2443_clkcon_enable_p(struct clk *clk, int enable)
+{
+ return s3c2443_gate(S3C2443_PCLKCON, clk, enable);
+}
+
+int s3c2443_clkcon_enable_s(struct clk *clk, int enable)
+{
+ return s3c2443_gate(S3C2443_SCLKCON, clk, enable);
+}
+
+/* mpllref is a direct descendant of clk_xtal by default, but it is not
+ * elided as the EPLL can be either sourced by the XTAL or EXTCLK and as
+ * such directly equating the two source clocks is impossible.
+ */
+struct clk clk_mpllref = {
+ .name = "mpllref",
+ .parent = &clk_xtal,
+ .id = -1,
+};
+
+static struct clk *clk_epllref_sources[] = {
+ [0] = &clk_mpllref,
+ [1] = &clk_mpllref,
+ [2] = &clk_xtal,
+ [3] = &clk_ext,
+};
+
+struct clksrc_clk clk_epllref = {
+ .clk = {
+ .name = "epllref",
+ .id = -1,
+ },
+ .sources = &(struct clksrc_sources) {
+ .sources = clk_epllref_sources,
+ .nr_sources = ARRAY_SIZE(clk_epllref_sources),
+ },
+ .reg_src = { .reg = S3C2443_CLKSRC, .size = 2, .shift = 7 },
+};
+
+/* esysclk
+ *
+ * this is sourced from either the EPLL or the EPLLref clock
+*/
+
+static struct clk *clk_sysclk_sources[] = {
+ [0] = &clk_epllref.clk,
+ [1] = &clk_epll,
+};
+
+struct clksrc_clk clk_esysclk = {
+ .clk = {
+ .name = "esysclk",
+ .parent = &clk_epll,
+ .id = -1,
+ },
+ .sources = &(struct clksrc_sources) {
+ .sources = clk_sysclk_sources,
+ .nr_sources = ARRAY_SIZE(clk_sysclk_sources),
+ },
+ .reg_src = { .reg = S3C2443_CLKSRC, .size = 1, .shift = 6 },
+};
+
+static unsigned long s3c2443_getrate_mdivclk(struct clk *clk)
+{
+ unsigned long parent_rate = clk_get_rate(clk->parent);
+ unsigned long div = __raw_readl(S3C2443_CLKDIV0);
+
+ div &= S3C2443_CLKDIV0_EXTDIV_MASK;
+ div >>= (S3C2443_CLKDIV0_EXTDIV_SHIFT-1); /* x2 */
+
+ return parent_rate / (div + 1);
+}
+
+static struct clk clk_mdivclk = {
+ .name = "mdivclk",
+ .parent = &clk_mpllref,
+ .id = -1,
+ .ops = &(struct clk_ops) {
+ .get_rate = s3c2443_getrate_mdivclk,
+ },
+};
+
+static struct clk *clk_msysclk_sources[] = {
+ [0] = &clk_mpllref,
+ [1] = &clk_mpll,
+ [2] = &clk_mdivclk,
+ [3] = &clk_mpllref,
+};
+
+struct clksrc_clk clk_msysclk = {
+ .clk = {
+ .name = "msysclk",
+ .parent = &clk_xtal,
+ .id = -1,
+ },
+ .sources = &(struct clksrc_sources) {
+ .sources = clk_msysclk_sources,
+ .nr_sources = ARRAY_SIZE(clk_msysclk_sources),
+ },
+ .reg_src = { .reg = S3C2443_CLKSRC, .size = 2, .shift = 3 },
+};
+
+/* prediv
+ *
+ * this divides the msysclk down to pass to h/p/etc.
+ */
+
+static unsigned long s3c2443_prediv_getrate(struct clk *clk)
+{
+ unsigned long rate = clk_get_rate(clk->parent);
+ unsigned long clkdiv0 = __raw_readl(S3C2443_CLKDIV0);
+
+ clkdiv0 &= S3C2443_CLKDIV0_PREDIV_MASK;
+ clkdiv0 >>= S3C2443_CLKDIV0_PREDIV_SHIFT;
+
+ return rate / (clkdiv0 + 1);
+}
+
+static struct clk clk_prediv = {
+ .name = "prediv",
+ .id = -1,
+ .parent = &clk_msysclk.clk,
+ .ops = &(struct clk_ops) {
+ .get_rate = s3c2443_prediv_getrate,
+ },
+};
+
+/* usbhost
+ *
+ * usb host bus-clock, usually 48MHz to provide USB bus clock timing
+*/
+
+static struct clksrc_clk clk_usb_bus_host = {
+ .clk = {
+ .name = "usb-bus-host-parent",
+ .id = -1,
+ .parent = &clk_esysclk.clk,
+ .ctrlbit = S3C2443_SCLKCON_USBHOST,
+ .enable = s3c2443_clkcon_enable_s,
+ },
+ .reg_div = { .reg = S3C2443_CLKDIV1, .size = 2, .shift = 4 },
+};
+
+/* common clksrc clocks */
+
+static struct clksrc_clk clksrc_clks[] = {
+ {
+ /* ART baud-rate clock sourced from esysclk via a divisor */
+ .clk = {
+ .name = "uartclk",
+ .id = -1,
+ .parent = &clk_esysclk.clk,
+ },
+ .reg_div = { .reg = S3C2443_CLKDIV1, .size = 4, .shift = 8 },
+ }, {
+ /* camera interface bus-clock, divided down from esysclk */
+ .clk = {
+ .name = "camif-upll", /* same as 2440 name */
+ .id = -1,
+ .parent = &clk_esysclk.clk,
+ .ctrlbit = S3C2443_SCLKCON_CAMCLK,
+ .enable = s3c2443_clkcon_enable_s,
+ },
+ .reg_div = { .reg = S3C2443_CLKDIV1, .size = 4, .shift = 26 },
+ }, {
+ .clk = {
+ .name = "display-if",
+ .id = -1,
+ .parent = &clk_esysclk.clk,
+ .ctrlbit = S3C2443_SCLKCON_DISPCLK,
+ .enable = s3c2443_clkcon_enable_s,
+ },
+ .reg_div = { .reg = S3C2443_CLKDIV1, .size = 8, .shift = 16 },
+ },
+};
+
+
+static struct clk init_clocks_off[] = {
+ {
+ .name = "adc",
+ .id = -1,
+ .parent = &clk_p,
+ .enable = s3c2443_clkcon_enable_p,
+ .ctrlbit = S3C2443_PCLKCON_ADC,
+ }, {
+ .name = "i2c",
+ .id = -1,
+ .parent = &clk_p,
+ .enable = s3c2443_clkcon_enable_p,
+ .ctrlbit = S3C2443_PCLKCON_IIC,
+ }
+};
+
+static struct clk init_clocks[] = {
+ {
+ .name = "dma",
+ .id = 0,
+ .parent = &clk_h,
+ .enable = s3c2443_clkcon_enable_h,
+ .ctrlbit = S3C2443_HCLKCON_DMA0,
+ }, {
+ .name = "dma",
+ .id = 1,
+ .parent = &clk_h,
+ .enable = s3c2443_clkcon_enable_h,
+ .ctrlbit = S3C2443_HCLKCON_DMA1,
+ }, {
+ .name = "dma",
+ .id = 2,
+ .parent = &clk_h,
+ .enable = s3c2443_clkcon_enable_h,
+ .ctrlbit = S3C2443_HCLKCON_DMA2,
+ }, {
+ .name = "dma",
+ .id = 3,
+ .parent = &clk_h,
+ .enable = s3c2443_clkcon_enable_h,
+ .ctrlbit = S3C2443_HCLKCON_DMA3,
+ }, {
+ .name = "dma",
+ .id = 4,
+ .parent = &clk_h,
+ .enable = s3c2443_clkcon_enable_h,
+ .ctrlbit = S3C2443_HCLKCON_DMA4,
+ }, {
+ .name = "dma",
+ .id = 5,
+ .parent = &clk_h,
+ .enable = s3c2443_clkcon_enable_h,
+ .ctrlbit = S3C2443_HCLKCON_DMA5,
+ }, {
+ .name = "hsmmc",
+ .id = 0,
+ .parent = &clk_h,
+ .enable = s3c2443_clkcon_enable_h,
+ .ctrlbit = S3C2443_HCLKCON_HSMMC,
+ }, {
+ .name = "gpio",
+ .id = -1,
+ .parent = &clk_p,
+ .enable = s3c2443_clkcon_enable_p,
+ .ctrlbit = S3C2443_PCLKCON_GPIO,
+ }, {
+ .name = "usb-host",
+ .id = -1,
+ .parent = &clk_h,
+ .enable = s3c2443_clkcon_enable_h,
+ .ctrlbit = S3C2443_HCLKCON_USBH,
+ }, {
+ .name = "usb-device",
+ .id = -1,
+ .parent = &clk_h,
+ .enable = s3c2443_clkcon_enable_h,
+ .ctrlbit = S3C2443_HCLKCON_USBD,
+ }, {
+ .name = "lcd",
+ .id = -1,
+ .parent = &clk_h,
+ .enable = s3c2443_clkcon_enable_h,
+ .ctrlbit = S3C2443_HCLKCON_LCDC,
+
+ }, {
+ .name = "timers",
+ .id = -1,
+ .parent = &clk_p,
+ .enable = s3c2443_clkcon_enable_p,
+ .ctrlbit = S3C2443_PCLKCON_PWMT,
+ }, {
+ .name = "cfc",
+ .id = -1,
+ .parent = &clk_h,
+ .enable = s3c2443_clkcon_enable_h,
+ .ctrlbit = S3C2443_HCLKCON_CFC,
+ }, {
+ .name = "ssmc",
+ .id = -1,
+ .parent = &clk_h,
+ .enable = s3c2443_clkcon_enable_h,
+ .ctrlbit = S3C2443_HCLKCON_SSMC,
+ }, {
+ .name = "uart",
+ .id = 0,
+ .parent = &clk_p,
+ .enable = s3c2443_clkcon_enable_p,
+ .ctrlbit = S3C2443_PCLKCON_UART0,
+ }, {
+ .name = "uart",
+ .id = 1,
+ .parent = &clk_p,
+ .enable = s3c2443_clkcon_enable_p,
+ .ctrlbit = S3C2443_PCLKCON_UART1,
+ }, {
+ .name = "uart",
+ .id = 2,
+ .parent = &clk_p,
+ .enable = s3c2443_clkcon_enable_p,
+ .ctrlbit = S3C2443_PCLKCON_UART2,
+ }, {
+ .name = "uart",
+ .id = 3,
+ .parent = &clk_p,
+ .enable = s3c2443_clkcon_enable_p,
+ .ctrlbit = S3C2443_PCLKCON_UART3,
+ }, {
+ .name = "rtc",
+ .id = -1,
+ .parent = &clk_p,
+ .enable = s3c2443_clkcon_enable_p,
+ .ctrlbit = S3C2443_PCLKCON_RTC,
+ }, {
+ .name = "watchdog",
+ .id = -1,
+ .parent = &clk_p,
+ .ctrlbit = S3C2443_PCLKCON_WDT,
+ }, {
+ .name = "ac97",
+ .id = -1,
+ .parent = &clk_p,
+ .ctrlbit = S3C2443_PCLKCON_AC97,
+ }, {
+ .name = "nand",
+ .id = -1,
+ .parent = &clk_h,
+ }, {
+ .name = "usb-bus-host",
+ .id = -1,
+ .parent = &clk_usb_bus_host.clk,
+ }
+};
+
+static inline unsigned long s3c2443_get_hdiv(unsigned long clkcon0)
+{
+ clkcon0 &= S3C2443_CLKDIV0_HCLKDIV_MASK;
+
+ return clkcon0 + 1;
+}
+
+/* EPLLCON compatible enough to get on/off information */
+
+void __init_or_cpufreq s3c2443_common_setup_clocks(pll_fn get_mpll,
+ fdiv_fn get_fdiv)
+{
+ unsigned long epllcon = __raw_readl(S3C2443_EPLLCON);
+ unsigned long mpllcon = __raw_readl(S3C2443_MPLLCON);
+ unsigned long clkdiv0 = __raw_readl(S3C2443_CLKDIV0);
+ struct clk *xtal_clk;
+ unsigned long xtal;
+ unsigned long pll;
+ unsigned long fclk;
+ unsigned long hclk;
+ unsigned long pclk;
+ int ptr;
+
+ xtal_clk = clk_get(NULL, "xtal");
+ xtal = clk_get_rate(xtal_clk);
+ clk_put(xtal_clk);
+
+ pll = get_mpll(mpllcon, xtal);
+ clk_msysclk.clk.rate = pll;
+
+ fclk = pll / get_fdiv(clkdiv0);
+ hclk = s3c2443_prediv_getrate(&clk_prediv);
+ hclk /= s3c2443_get_hdiv(clkdiv0);
+ pclk = hclk / ((clkdiv0 & S3C2443_CLKDIV0_HALF_PCLK) ? 2 : 1);
+
+ s3c24xx_setup_clocks(fclk, hclk, pclk);
+
+ printk("CPU: MPLL %s %ld.%03ld MHz, cpu %ld.%03ld MHz, mem %ld.%03ld MHz, pclk %ld.%03ld MHz\n",
+ (mpllcon & S3C2443_PLLCON_OFF) ? "off":"on",
+ print_mhz(pll), print_mhz(fclk),
+ print_mhz(hclk), print_mhz(pclk));
+
+ for (ptr = 0; ptr < ARRAY_SIZE(clksrc_clks); ptr++)
+ s3c_set_clksrc(&clksrc_clks[ptr], true);
+
+ /* ensure usb bus clock is within correct rate of 48MHz */
+
+ if (clk_get_rate(&clk_usb_bus_host.clk) != (48 * 1000 * 1000)) {
+ printk(KERN_INFO "Warning: USB host bus not at 48MHz\n");
+ clk_set_rate(&clk_usb_bus_host.clk, 48*1000*1000);
+ }
+
+ printk("CPU: EPLL %s %ld.%03ld MHz, usb-bus %ld.%03ld MHz\n",
+ (epllcon & S3C2443_PLLCON_OFF) ? "off":"on",
+ print_mhz(clk_get_rate(&clk_epll)),
+ print_mhz(clk_get_rate(&clk_usb_bus)));
+}
+
+static struct clk *clks[] __initdata = {
+ &clk_prediv,
+ &clk_mpllref,
+ &clk_mdivclk,
+ &clk_ext,
+ &clk_epll,
+ &clk_usb_bus,
+};
+
+static struct clksrc_clk *clksrcs[] __initdata = {
+ &clk_usb_bus_host,
+ &clk_epllref,
+ &clk_esysclk,
+ &clk_msysclk,
+};
+
+void __init s3c2443_common_init_clocks(int xtal, pll_fn get_mpll,
+ fdiv_fn get_fdiv)
+{
+ int ptr;
+
+ /* s3c2443 parents h and p clocks from prediv */
+ clk_h.parent = &clk_prediv;
+ clk_p.parent = &clk_prediv;
+
+ clk_usb_bus.parent = &clk_usb_bus_host.clk;
+ clk_epll.parent = &clk_epllref.clk;
+
+ s3c24xx_register_baseclocks(xtal);
+ s3c24xx_register_clocks(clks, ARRAY_SIZE(clks));
+
+ for (ptr = 0; ptr < ARRAY_SIZE(clksrcs); ptr++)
+ s3c_register_clksrc(clksrcs[ptr], 1);
+
+ s3c_register_clksrc(clksrc_clks, ARRAY_SIZE(clksrc_clks));
+ s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
+
+ /* See s3c2443/etc notes on disabling clocks at init time */
+ s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
+ s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
+
+ s3c2443_common_setup_clocks(get_mpll, get_fdiv);
+}