diff options
Diffstat (limited to 'arch/arm/plat-s5p')
| -rw-r--r-- | arch/arm/plat-s5p/cpu.c | 37 | ||||
| -rw-r--r-- | arch/arm/plat-s5p/include/plat/exynos4.h | 5 | ||||
| -rw-r--r-- | arch/arm/plat-s5p/include/plat/pll.h | 55 |
3 files changed, 79 insertions, 18 deletions
diff --git a/arch/arm/plat-s5p/cpu.c b/arch/arm/plat-s5p/cpu.c index bbc2aa7449ca..909507bae2fa 100644 --- a/arch/arm/plat-s5p/cpu.c +++ b/arch/arm/plat-s5p/cpu.c @@ -33,48 +33,57 @@ static const char name_s5p6450[] = "S5P6450"; static const char name_s5pc100[] = "S5PC100"; static const char name_s5pv210[] = "S5PV210/S5PC110"; static const char name_exynos4210[] = "EXYNOS4210"; +static const char name_exynos4212[] = "EXYNOS4212"; static struct cpu_table cpu_ids[] __initdata = { { - .idcode = 0x56440100, - .idmask = 0xfffff000, + .idcode = S5P6440_CPU_ID, + .idmask = S5P64XX_CPU_MASK, .map_io = s5p6440_map_io, .init_clocks = s5p6440_init_clocks, .init_uarts = s5p6440_init_uarts, .init = s5p64x0_init, .name = name_s5p6440, }, { - .idcode = 0x36450000, - .idmask = 0xfffff000, + .idcode = S5P6450_CPU_ID, + .idmask = S5P64XX_CPU_MASK, .map_io = s5p6450_map_io, .init_clocks = s5p6450_init_clocks, .init_uarts = s5p6450_init_uarts, .init = s5p64x0_init, .name = name_s5p6450, }, { - .idcode = 0x43100000, - .idmask = 0xfffff000, + .idcode = S5PC100_CPU_ID, + .idmask = S5PC100_CPU_MASK, .map_io = s5pc100_map_io, .init_clocks = s5pc100_init_clocks, .init_uarts = s5pc100_init_uarts, .init = s5pc100_init, .name = name_s5pc100, }, { - .idcode = 0x43110000, - .idmask = 0xfffff000, + .idcode = S5PV210_CPU_ID, + .idmask = S5PV210_CPU_MASK, .map_io = s5pv210_map_io, .init_clocks = s5pv210_init_clocks, .init_uarts = s5pv210_init_uarts, .init = s5pv210_init, .name = name_s5pv210, }, { - .idcode = 0x43210000, - .idmask = 0xfffe0000, + .idcode = EXYNOS4210_CPU_ID, + .idmask = EXYNOS4_CPU_MASK, .map_io = exynos4_map_io, .init_clocks = exynos4_init_clocks, .init_uarts = exynos4_init_uarts, .init = exynos4_init, .name = name_exynos4210, + }, { + .idcode = EXYNOS4212_CPU_ID, + .idmask = EXYNOS4_CPU_MASK, + .map_io = exynos4_map_io, + .init_clocks = exynos4_init_clocks, + .init_uarts = exynos4_init_uarts, + .init = exynos4_init, + .name = name_exynos4212, }, }; @@ -114,13 +123,13 @@ static struct map_desc s5p_iodesc[] __initdata = { void __init s5p_init_io(struct map_desc *mach_desc, int size, void __iomem *cpuid_addr) { - unsigned long idcode; - /* initialize the io descriptors we need for initialization */ iotable_init(s5p_iodesc, ARRAY_SIZE(s5p_iodesc)); if (mach_desc) iotable_init(mach_desc, size); - idcode = __raw_readl(cpuid_addr); - s3c_init_cpu(idcode, cpu_ids, ARRAY_SIZE(cpu_ids)); + /* detect cpu id and rev. */ + s5p_init_cpu(cpuid_addr); + + s3c_init_cpu(samsung_cpu_id, cpu_ids, ARRAY_SIZE(cpu_ids)); } diff --git a/arch/arm/plat-s5p/include/plat/exynos4.h b/arch/arm/plat-s5p/include/plat/exynos4.h index 907caab53dcf..f680a143e38c 100644 --- a/arch/arm/plat-s5p/include/plat/exynos4.h +++ b/arch/arm/plat-s5p/include/plat/exynos4.h @@ -14,10 +14,11 @@ extern void exynos4_common_init_uarts(struct s3c2410_uartcfg *cfg, int no); extern void exynos4_register_clocks(void); +extern void exynos4210_register_clocks(void); +extern void exynos4212_register_clocks(void); extern void exynos4_setup_clocks(void); -#ifdef CONFIG_CPU_EXYNOS4210 - +#ifdef CONFIG_ARCH_EXYNOS4 extern int exynos4_init(void); extern void exynos4_init_irq(void); extern void exynos4_map_io(void); diff --git a/arch/arm/plat-s5p/include/plat/pll.h b/arch/arm/plat-s5p/include/plat/pll.h index ebc142c5c84c..3e21b9444cc5 100644 --- a/arch/arm/plat-s5p/include/plat/pll.h +++ b/arch/arm/plat-s5p/include/plat/pll.h @@ -12,6 +12,59 @@ * published by the Free Software Foundation. */ +#include <asm/div64.h> + +#define PLL35XX_MDIV_MASK (0x3FF) +#define PLL35XX_PDIV_MASK (0x3F) +#define PLL35XX_SDIV_MASK (0x7) +#define PLL35XX_MDIV_SHIFT (16) +#define PLL35XX_PDIV_SHIFT (8) +#define PLL35XX_SDIV_SHIFT (0) + +static inline unsigned long s5p_get_pll35xx(unsigned long baseclk, u32 pll_con) +{ + u32 mdiv, pdiv, sdiv; + u64 fvco = baseclk; + + mdiv = (pll_con >> PLL35XX_MDIV_SHIFT) & PLL35XX_MDIV_MASK; + pdiv = (pll_con >> PLL35XX_PDIV_SHIFT) & PLL35XX_PDIV_MASK; + sdiv = (pll_con >> PLL35XX_SDIV_SHIFT) & PLL35XX_SDIV_MASK; + + fvco *= mdiv; + do_div(fvco, (pdiv << sdiv)); + + return (unsigned long)fvco; +} + +#define PLL36XX_KDIV_MASK (0xFFFF) +#define PLL36XX_MDIV_MASK (0x1FF) +#define PLL36XX_PDIV_MASK (0x3F) +#define PLL36XX_SDIV_MASK (0x7) +#define PLL36XX_MDIV_SHIFT (16) +#define PLL36XX_PDIV_SHIFT (8) +#define PLL36XX_SDIV_SHIFT (0) + +static inline unsigned long s5p_get_pll36xx(unsigned long baseclk, + u32 pll_con0, u32 pll_con1) +{ + unsigned long result; + u32 mdiv, pdiv, sdiv, kdiv; + u64 tmp; + + mdiv = (pll_con0 >> PLL36XX_MDIV_SHIFT) & PLL36XX_MDIV_MASK; + pdiv = (pll_con0 >> PLL36XX_PDIV_SHIFT) & PLL36XX_PDIV_MASK; + sdiv = (pll_con0 >> PLL36XX_SDIV_SHIFT) & PLL36XX_SDIV_MASK; + kdiv = pll_con1 & PLL36XX_KDIV_MASK; + + tmp = baseclk; + + tmp *= (mdiv << 16) + kdiv; + do_div(tmp, (pdiv << sdiv)); + result = tmp >> 16; + + return result; +} + #define PLL45XX_MDIV_MASK (0x3FF) #define PLL45XX_PDIV_MASK (0x3F) #define PLL45XX_SDIV_MASK (0x7) @@ -19,8 +72,6 @@ #define PLL45XX_PDIV_SHIFT (8) #define PLL45XX_SDIV_SHIFT (0) -#include <asm/div64.h> - enum pll45xx_type_t { pll_4500, pll_4502, |
