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ARM: EXYNOS: allow legacy board support to specify xxti and xusbxti clock speed

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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>
This commit is contained in:
Thomas Abraham 2013-03-09 17:03:33 +09:00 committed by Kukjin Kim
parent 6923ae4bd3
commit 9274427411
6 changed files with 12 additions and 0 deletions
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3
arch/arm/mach-exynos/common.c
View File

@ -69,6 +69,8 @@ static void exynos5440_map_io(void);
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 @@ void __init exynos_init_time(void)
} 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();
}
}

1
arch/arm/mach-exynos/common.h
View File

@ -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);

2
arch/arm/mach-exynos/mach-nuri.c
View File

@ -1331,6 +1331,8 @@ static void __init nuri_map_io(void)
{
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)

2
arch/arm/mach-exynos/mach-origen.c
View File

@ -755,6 +755,8 @@ static void __init origen_map_io(void)
{
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)

2
arch/arm/mach-exynos/mach-smdkv310.c
View File

@ -372,6 +372,8 @@ static void __init smdkv310_map_io(void)
{
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)

2
arch/arm/mach-exynos/mach-universal_c210.c
View File

@ -1094,6 +1094,8 @@ static void __init universal_map_io(void)
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)