arch/arm/plat-samsung/include/plat/cpu.h

   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