linux/arch/arm/plat-samsung/include/plat/cpu.h
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   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
  21extern 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)          \
  46static inline int is_samsung_##name(void)       \
  47{                                               \
  48        return ((samsung_cpu_id & mask) == (id & mask));        \
  49}
  50
  51IS_SAMSUNG_CPU(s3c24xx, S3C24XX_CPU_ID, S3C24XX_CPU_MASK)
  52IS_SAMSUNG_CPU(s3c6400, S3C6400_CPU_ID, S3C64XX_CPU_MASK)
  53IS_SAMSUNG_CPU(s3c6410, S3C6410_CPU_ID, S3C64XX_CPU_MASK)
  54IS_SAMSUNG_CPU(s5p6440, S5P6440_CPU_ID, S5P64XX_CPU_MASK)
  55IS_SAMSUNG_CPU(s5p6450, S5P6450_CPU_ID, S5P64XX_CPU_MASK)
  56IS_SAMSUNG_CPU(s5pc100, S5PC100_CPU_ID, S5PC100_CPU_MASK)
  57IS_SAMSUNG_CPU(s5pv210, S5PV210_CPU_ID, S5PV210_CPU_MASK)
  58IS_SAMSUNG_CPU(exynos4210, EXYNOS4210_CPU_ID, EXYNOS4_CPU_MASK)
  59IS_SAMSUNG_CPU(exynos4212, EXYNOS4212_CPU_ID, EXYNOS4_CPU_MASK)
  60IS_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 */
 132struct s3c24xx_uart_resources;
 133struct platform_device;
 134struct s3c2410_uartcfg;
 135struct map_desc;
 136
 137/* per-cpu initialisation function table. */
 138
 139struct 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
 149extern void s3c_init_cpu(unsigned long idcode,
 150                         struct cpu_table *cpus, unsigned int cputab_size);
 151
 152/* core initialisation functions */
 153
 154extern void s3c24xx_init_irq(void);
 155extern void s5p_init_irq(u32 *vic, u32 num_vic);
 156
 157extern void s3c24xx_init_io(struct map_desc *mach_desc, int size);
 158
 159extern void s3c24xx_init_cpu(void);
 160extern void s3c64xx_init_cpu(void);
 161extern void s5p_init_cpu(void __iomem *cpuid_addr);
 162
 163extern unsigned int samsung_rev(void);
 164
 165extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no);
 166
 167extern void s3c24xx_init_clocks(int xtal);
 168
 169extern 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
 175struct sys_timer;
 176extern struct sys_timer s3c24xx_timer;
 177
 178extern struct syscore_ops s3c2410_pm_syscore_ops;
 179extern struct syscore_ops s3c2412_pm_syscore_ops;
 180extern struct syscore_ops s3c2416_pm_syscore_ops;
 181extern struct syscore_ops s3c244x_pm_syscore_ops;
 182
 183/* system device subsystems */
 184
 185extern struct bus_type s3c2410_subsys;
 186extern struct bus_type s3c2410a_subsys;
 187extern struct bus_type s3c2412_subsys;
 188extern struct bus_type s3c2416_subsys;
 189extern struct bus_type s3c2440_subsys;
 190extern struct bus_type s3c2442_subsys;
 191extern struct bus_type s3c2443_subsys;
 192extern struct bus_type s3c6410_subsys;
 193extern struct bus_type s5p64x0_subsys;
 194extern struct bus_type s5pv210_subsys;
 195extern struct bus_type exynos4_subsys;
 196
 197extern void (*s5pc1xx_idle)(void);
 198
 199#endif
 200