From: Heiko Stuebner Date: Thu, 8 May 2014 20:49:14 +0000 (+0900) Subject: ARM: S3C24XX: add platform code for conversion to the common clock framework X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=4659c534834c33c698c9400e0aedd1e1aa48e9b6;p=linux-beck.git ARM: S3C24XX: add platform code for conversion to the common clock framework This adds the necessary init functions to init the clocks from the common clock framework and necessary CONFIG_SAMSUNG_CLOCK ifdefs around the legacy clock code. This also includes empty stubs for the *_setup_clocks functions that are called from the cpufreq driver on resume. Signed-off-by: Heiko Stuebner Reviewed-by: Tomasz Figa Signed-off-by: Kukjin Kim --- diff --git a/arch/arm/mach-s3c24xx/Kconfig b/arch/arm/mach-s3c24xx/Kconfig index c9378806b9e8..6a0fcb1c3303 100644 --- a/arch/arm/mach-s3c24xx/Kconfig +++ b/arch/arm/mach-s3c24xx/Kconfig @@ -18,6 +18,11 @@ config PLAT_S3C24XX help Base platform code for any Samsung S3C24XX device +config S3C2410_COMMON_CLK + bool + help + Build the s3c2410 clock driver based on the common clock framework. + config S3C2410_COMMON_DCLK bool select REGMAP_MMIO diff --git a/arch/arm/mach-s3c24xx/common.c b/arch/arm/mach-s3c24xx/common.c index 7cc6d944c820..35cf88e1fa83 100644 --- a/arch/arm/mach-s3c24xx/common.c +++ b/arch/arm/mach-s3c24xx/common.c @@ -53,6 +53,7 @@ #include #include #include +#include #include "common.h" @@ -533,6 +534,14 @@ struct platform_device s3c2443_device_dma = { }; #endif +#if defined(CONFIG_COMMON_CLK) && defined(CONFIG_CPU_S3C2410) +void __init s3c2410_init_clocks(int xtal) +{ + s3c2410_common_clk_init(NULL, xtal, 0, S3C24XX_VA_CLKPWR); + samsung_wdt_reset_init(S3C24XX_VA_WATCHDOG); +} +#endif + #ifdef CONFIG_CPU_S3C2412 void __init s3c2412_init_clocks(int xtal) { @@ -547,6 +556,22 @@ void __init s3c2416_init_clocks(int xtal) } #endif +#if defined(CONFIG_COMMON_CLK) && defined(CONFIG_CPU_S3C2440) +void __init s3c2440_init_clocks(int xtal) +{ + s3c2410_common_clk_init(NULL, xtal, 1, S3C24XX_VA_CLKPWR); + samsung_wdt_reset_init(S3C24XX_VA_WATCHDOG); +} +#endif + +#if defined(CONFIG_COMMON_CLK) && defined(CONFIG_CPU_S3C2442) +void __init s3c2442_init_clocks(int xtal) +{ + s3c2410_common_clk_init(NULL, xtal, 2, S3C24XX_VA_CLKPWR); + samsung_wdt_reset_init(S3C24XX_VA_WATCHDOG); +} +#endif + #ifdef CONFIG_CPU_S3C2443 void __init s3c2443_init_clocks(int xtal) { diff --git a/arch/arm/mach-s3c24xx/common.h b/arch/arm/mach-s3c24xx/common.h index 50504c77fa00..2d6554140161 100644 --- a/arch/arm/mach-s3c24xx/common.h +++ b/arch/arm/mach-s3c24xx/common.h @@ -77,6 +77,7 @@ extern void s3c244x_restart(enum reboot_mode mode, const char *cmd); #ifdef CONFIG_CPU_S3C2440 extern int s3c2440_init(void); extern void s3c2440_map_io(void); +extern void s3c2440_init_clocks(int xtal); extern void s3c2440_init_irq(void); #else #define s3c2440_init NULL @@ -86,6 +87,7 @@ extern void s3c2440_init_irq(void); #ifdef CONFIG_CPU_S3C2442 extern int s3c2442_init(void); extern void s3c2442_map_io(void); +extern void s3c2442_init_clocks(int xtal); extern void s3c2442_init_irq(void); #else #define s3c2442_init NULL @@ -116,6 +118,11 @@ extern struct platform_device s3c2443_device_dma; extern struct platform_device s3c2410_device_dclk; +#ifdef CONFIG_S3C2410_COMMON_CLK +void __init s3c2410_common_clk_init(struct device_node *np, unsigned long xti_f, + int current_soc, + void __iomem *reg_base); +#endif #ifdef CONFIG_S3C2412_COMMON_CLK void __init s3c2412_common_clk_init(struct device_node *np, unsigned long xti_f, unsigned long ext_f, void __iomem *reg_base); diff --git a/arch/arm/mach-s3c24xx/s3c2410.c b/arch/arm/mach-s3c24xx/s3c2410.c index 04b58cb49888..52801730ab24 100644 --- a/arch/arm/mach-s3c24xx/s3c2410.c +++ b/arch/arm/mach-s3c24xx/s3c2410.c @@ -83,6 +83,7 @@ void __init s3c2410_map_io(void) iotable_init(s3c2410_iodesc, ARRAY_SIZE(s3c2410_iodesc)); } +#ifdef CONFIG_SAMSUNG_CLOCK void __init_or_cpufreq s3c2410_setup_clocks(void) { struct clk *xtal_clk; @@ -142,6 +143,11 @@ void __init s3c2410_init_clocks(int xtal) clkdev_add_table(s3c2410_clk_lookup, ARRAY_SIZE(s3c2410_clk_lookup)); samsung_wdt_reset_init(S3C24XX_VA_WATCHDOG); } +#else +void __init_or_cpufreq s3c2410_setup_clocks(void) +{ +} +#endif struct bus_type s3c2410_subsys = { .name = "s3c2410-core", diff --git a/arch/arm/mach-s3c24xx/s3c2442.c b/arch/arm/mach-s3c24xx/s3c2442.c index 2c8adc028538..564c65037ff2 100644 --- a/arch/arm/mach-s3c24xx/s3c2442.c +++ b/arch/arm/mach-s3c24xx/s3c2442.c @@ -53,6 +53,7 @@ #include "common.h" +#ifdef CONFIG_SAMSUNG_CLOCK /* S3C2442 extended clock support */ static unsigned long s3c2442_camif_upll_round(struct clk *clk, @@ -162,7 +163,7 @@ static __init int s3c2442_clk_init(void) } arch_initcall(s3c2442_clk_init); - +#endif static struct device s3c2442_dev = { .bus = &s3c2442_subsys, diff --git a/arch/arm/mach-s3c24xx/s3c244x.c b/arch/arm/mach-s3c24xx/s3c244x.c index 76b691bf724e..1d665d50b034 100644 --- a/arch/arm/mach-s3c24xx/s3c244x.c +++ b/arch/arm/mach-s3c24xx/s3c244x.c @@ -78,6 +78,7 @@ void __init s3c244x_map_io(void) s3c2410_device_dclk.name = "s3c2440-dclk"; } +#ifdef CONFIG_SAMSUNG_CLOCK void __init_or_cpufreq s3c244x_setup_clocks(void) { struct clk *xtal_clk; @@ -138,6 +139,11 @@ void __init s3c244x_init_clocks(int xtal) s3c2410_baseclk_add(); samsung_wdt_reset_init(S3C24XX_VA_WATCHDOG); } +#else +void __init_or_cpufreq s3c244x_setup_clocks(void) +{ +} +#endif /* Since the S3C2442 and S3C2440 share items, put both subsystems here */