1 /* linux/arch/arm/plat-samsung/include/plat/cpu.h 2 * 3 * Copyright (c) 2011 Samsung Electronics Co., Ltd. 4 * http://www.samsung.com/ 5 * 6 * Copyright (c) 2004-2005 Simtec Electronics 7 * Ben Dooks <ben@simtec.co.uk> 8 * 9 * Header file for Samsung CPU support 10 * 11 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of the GNU General Public License version 2 as 13 * published by the Free Software Foundation. 14 */ 15 16 /* todo - fix when rmk changes iodescs to use `void __iomem *` */ 17 18 #ifndef __SAMSUNG_PLAT_CPU_H 19 #define __SAMSUNG_PLAT_CPU_H 20 21 extern unsigned long samsung_cpu_id; 22 23 #define S3C24XX_CPU_ID 0x32400000 24 #define S3C24XX_CPU_MASK 0xFFF00000 25 26 #define S3C6400_CPU_ID 0x36400000 27 #define S3C6410_CPU_ID 0x36410000 28 #define S3C64XX_CPU_MASK 0xFFFFF000 29 30 #define S5P6440_CPU_ID 0x56440000 31 #define S5P6450_CPU_ID 0x36450000 32 #define S5P64XX_CPU_MASK 0xFFFFF000 33 34 #define S5PC100_CPU_ID 0x43100000 35 #define S5PC100_CPU_MASK 0xFFFFF000 36 37 #define S5PV210_CPU_ID 0x43110000 38 #define S5PV210_CPU_MASK 0xFFFFF000 39 40 #define EXYNOS4210_CPU_ID 0x43210000 41 #define EXYNOS4212_CPU_ID 0x43220000 42 #define EXYNOS4412_CPU_ID 0xE4412200 43 #define EXYNOS4_CPU_MASK 0xFFFE0000 44 45 #define IS_SAMSUNG_CPU(name, id, mask) \ 46 static inline int is_samsung_##name(void) \ 47 { \ 48 return ((samsung_cpu_id & mask) == (id & mask)); \ 49 } 50 51 IS_SAMSUNG_CPU(s3c24xx, S3C24XX_CPU_ID, S3C24XX_CPU_MASK) 52 IS_SAMSUNG_CPU(s3c6400, S3C6400_CPU_ID, S3C64XX_CPU_MASK) 53 IS_SAMSUNG_CPU(s3c6410, S3C6410_CPU_ID, S3C64XX_CPU_MASK) 54 IS_SAMSUNG_CPU(s5p6440, S5P6440_CPU_ID, S5P64XX_CPU_MASK) 55 IS_SAMSUNG_CPU(s5p6450, S5P6450_CPU_ID, S5P64XX_CPU_MASK) 56 IS_SAMSUNG_CPU(s5pc100, S5PC100_CPU_ID, S5PC100_CPU_MASK) 57 IS_SAMSUNG_CPU(s5pv210, S5PV210_CPU_ID, S5PV210_CPU_MASK) 58 IS_SAMSUNG_CPU(exynos4210, EXYNOS4210_CPU_ID, EXYNOS4_CPU_MASK) 59 IS_SAMSUNG_CPU(exynos4212, EXYNOS4212_CPU_ID, EXYNOS4_CPU_MASK) 60 IS_SAMSUNG_CPU(exynos4412, EXYNOS4412_CPU_ID, EXYNOS4_CPU_MASK) 61 62 #if defined(CONFIG_CPU_S3C2410) || defined(CONFIG_CPU_S3C2412) || \ 63 defined(CONFIG_CPU_S3C2416) || defined(CONFIG_CPU_S3C2440) || \ 64 defined(CONFIG_CPU_S3C2442) || defined(CONFIG_CPU_S3C244X) || \ 65 defined(CONFIG_CPU_S3C2443) 66 # define soc_is_s3c24xx() is_samsung_s3c24xx() 67 #else 68 # define soc_is_s3c24xx() 0 69 #endif 70 71 #if defined(CONFIG_CPU_S3C6400) || defined(CONFIG_CPU_S3C6410) 72 # define soc_is_s3c64xx() (is_samsung_s3c6400() || is_samsung_s3c6410()) 73 #else 74 # define soc_is_s3c64xx() 0 75 #endif 76 77 #if defined(CONFIG_CPU_S5P6440) 78 # define soc_is_s5p6440() is_samsung_s5p6440() 79 #else 80 # define soc_is_s5p6440() 0 81 #endif 82 83 #if defined(CONFIG_CPU_S5P6450) 84 # define soc_is_s5p6450() is_samsung_s5p6450() 85 #else 86 # define soc_is_s5p6450() 0 87 #endif 88 89 #if defined(CONFIG_CPU_S5PC100) 90 # define soc_is_s5pc100() is_samsung_s5pc100() 91 #else 92 # define soc_is_s5pc100() 0 93 #endif 94 95 #if defined(CONFIG_CPU_S5PV210) 96 # define soc_is_s5pv210() is_samsung_s5pv210() 97 #else 98 # define soc_is_s5pv210() 0 99 #endif 100 101 #if defined(CONFIG_CPU_EXYNOS4210) 102 # define soc_is_exynos4210() is_samsung_exynos4210() 103 #else 104 # define soc_is_exynos4210() 0 105 #endif 106 107 #if defined(CONFIG_SOC_EXYNOS4212) 108 # define soc_is_exynos4212() is_samsung_exynos4212() 109 #else 110 # define soc_is_exynos4212() 0 111 #endif 112 113 #if defined(CONFIG_SOC_EXYNOS4412) 114 # define soc_is_exynos4412() is_samsung_exynos4412() 115 #else 116 # define soc_is_exynos4412() 0 117 #endif 118 119 #define EXYNOS4210_REV_0 (0x0) 120 #define EXYNOS4210_REV_1_0 (0x10) 121 #define EXYNOS4210_REV_1_1 (0x11) 122 123 #define IODESC_ENT(x) { (unsigned long)S3C24XX_VA_##x, __phys_to_pfn(S3C24XX_PA_##x), S3C24XX_SZ_##x, MT_DEVICE } 124 125 #ifndef MHZ 126 #define MHZ (1000*1000) 127 #endif 128 129 #define print_mhz(m) ((m) / MHZ), (((m) / 1000) % 1000) 130 131 /* forward declaration */ 132 struct s3c24xx_uart_resources; 133 struct platform_device; 134 struct s3c2410_uartcfg; 135 struct map_desc; 136 137 /* per-cpu initialisation function table. */ 138 139 struct cpu_table { 140 unsigned long idcode; 141 unsigned long idmask; 142 void (*map_io)(void); 143 void (*init_uarts)(struct s3c2410_uartcfg *cfg, int no); 144 void (*init_clocks)(int xtal); 145 int (*init)(void); 146 const char *name; 147 }; 148 149 extern void s3c_init_cpu(unsigned long idcode, 150 struct cpu_table *cpus, unsigned int cputab_size); 151 152 /* core initialisation functions */ 153 154 extern void s3c24xx_init_irq(void); 155 extern void s5p_init_irq(u32 *vic, u32 num_vic); 156 157 extern void s3c24xx_init_io(struct map_desc *mach_desc, int size); 158 159 extern void s3c24xx_init_cpu(void); 160 extern void s3c64xx_init_cpu(void); 161 extern void s5p_init_cpu(void __iomem *cpuid_addr); 162 163 extern unsigned int samsung_rev(void); 164 165 extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no); 166 167 extern void s3c24xx_init_clocks(int xtal); 168 169 extern void s3c24xx_init_uartdevs(char *name, 170 struct s3c24xx_uart_resources *res, 171 struct s3c2410_uartcfg *cfg, int no); 172 173 /* timer for 2410/2440 */ 174 175 struct sys_timer; 176 extern struct sys_timer s3c24xx_timer; 177 178 extern struct syscore_ops s3c2410_pm_syscore_ops; 179 extern struct syscore_ops s3c2412_pm_syscore_ops; 180 extern struct syscore_ops s3c2416_pm_syscore_ops; 181 extern struct syscore_ops s3c244x_pm_syscore_ops; 182 183 /* system device subsystems */ 184 185 extern struct bus_type s3c2410_subsys; 186 extern struct bus_type s3c2410a_subsys; 187 extern struct bus_type s3c2412_subsys; 188 extern struct bus_type s3c2416_subsys; 189 extern struct bus_type s3c2440_subsys; 190 extern struct bus_type s3c2442_subsys; 191 extern struct bus_type s3c2443_subsys; 192 extern struct bus_type s3c6410_subsys; 193 extern struct bus_type s5p64x0_subsys; 194 extern struct bus_type s5pv210_subsys; 195 extern struct bus_type exynos4_subsys; 196 197 extern void (*s5pc1xx_idle)(void); 198 199 #endif 200