ARM: EXYNOS: allow legacy board support to specify xxti and xusbxti clock speed
The clock speed of xxti and xusbxti clocks depends on the oscillator
used on the board to generate these clocks. For non-dt platforms,
allow the board support for those platforms to set the clock frequency
of xxti and xusbxti clocks.
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index 5033179..64e5649 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -69,6 +69,8 @@
static void exynos4_init_uarts(struct s3c2410_uartcfg *cfg, int no);
static int exynos_init(void);
+unsigned long xxti_f = 0, xusbxti_f = 0;
+
static struct cpu_table cpu_ids[] __initdata = {
{
.idcode = EXYNOS4210_CPU_ID,
@@ -407,6 +409,7 @@
} else {
/* todo: remove after migrating legacy E4 platforms to dt */
exynos4_clk_init(NULL);
+ exynos4_clk_register_fixed_ext(xxti_f, xusbxti_f);
mct_init();
}
}
diff --git a/arch/arm/mach-exynos/common.h b/arch/arm/mach-exynos/common.h
index ec4098e..cb89ab8 100644
--- a/arch/arm/mach-exynos/common.h
+++ b/arch/arm/mach-exynos/common.h
@@ -16,6 +16,7 @@
extern void mct_init(void);
void exynos_init_time(void);
+extern unsigned long xxti_f, xusbxti_f;
struct map_desc;
void exynos_init_io(struct map_desc *mach_desc, int size);
diff --git a/arch/arm/mach-exynos/mach-nuri.c b/arch/arm/mach-exynos/mach-nuri.c
index 0555e6d..0c10852 100644
--- a/arch/arm/mach-exynos/mach-nuri.c
+++ b/arch/arm/mach-exynos/mach-nuri.c
@@ -1331,6 +1331,8 @@
{
exynos_init_io(NULL, 0);
s3c24xx_init_uarts(nuri_uartcfgs, ARRAY_SIZE(nuri_uartcfgs));
+ xxti_f = 0;
+ xusbxti_f = 24000000;
}
static void __init nuri_reserve(void)
diff --git a/arch/arm/mach-exynos/mach-origen.c b/arch/arm/mach-exynos/mach-origen.c
index e42e61a..a9aa5c0 100644
--- a/arch/arm/mach-exynos/mach-origen.c
+++ b/arch/arm/mach-exynos/mach-origen.c
@@ -755,6 +755,8 @@
{
exynos_init_io(NULL, 0);
s3c24xx_init_uarts(origen_uartcfgs, ARRAY_SIZE(origen_uartcfgs));
+ xxti_f = 0;
+ xusbxti_f = 24000000;
}
static void __init origen_power_init(void)
diff --git a/arch/arm/mach-exynos/mach-smdkv310.c b/arch/arm/mach-exynos/mach-smdkv310.c
index 4bf2198..75eca7d 100644
--- a/arch/arm/mach-exynos/mach-smdkv310.c
+++ b/arch/arm/mach-exynos/mach-smdkv310.c
@@ -372,6 +372,8 @@
{
exynos_init_io(NULL, 0);
s3c24xx_init_uarts(smdkv310_uartcfgs, ARRAY_SIZE(smdkv310_uartcfgs));
+ xxti_f = 12000000;
+ xusbxti_f = 24000000;
}
static void __init smdkv310_reserve(void)
diff --git a/arch/arm/mach-exynos/mach-universal_c210.c b/arch/arm/mach-exynos/mach-universal_c210.c
index 4e6e8ce..72f08fd 100644
--- a/arch/arm/mach-exynos/mach-universal_c210.c
+++ b/arch/arm/mach-exynos/mach-universal_c210.c
@@ -1094,6 +1094,8 @@
exynos_init_io(NULL, 0);
s3c24xx_init_uarts(universal_uartcfgs, ARRAY_SIZE(universal_uartcfgs));
samsung_set_timer_source(SAMSUNG_PWM2, SAMSUNG_PWM4);
+ xxti_f = 0;
+ xusbxti_f = 24000000;
}
static void s5p_tv_setup(void)