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 S3C2410_CPU_ID          0x32410000
  24 #define S3C2410_CPU_MASK        0xFFFFFFFF
  25
  26 #define S3C24XX_CPU_ID          0x32400000
  27 #define S3C24XX_CPU_MASK        0xFFF00000
  28
  29 #define S3C2412_CPU_ID          0x32412000
  30 #define S3C2412_CPU_MASK        0xFFFFF000
  31
  32 #define S3C6400_CPU_ID          0x36400000
  33 #define S3C6410_CPU_ID          0x36410000
  34 #define S3C64XX_CPU_MASK        0xFFFFF000
  35
  36 #define S5PV210_CPU_ID          0x43110000
  37 #define S5PV210_CPU_MASK        0xFFFFF000
  38
  39 #define IS_SAMSUNG_CPU(name, id, mask)          \
  40 static inline int is_samsung_##name(void)       \
  41 {                                               \
  42         return ((samsung_cpu_id & mask) == (id & mask));        \
  43 }
  44
  45 IS_SAMSUNG_CPU(s3c2410, S3C2410_CPU_ID, S3C2410_CPU_MASK)
  46 IS_SAMSUNG_CPU(s3c24xx, S3C24XX_CPU_ID, S3C24XX_CPU_MASK)
  47 IS_SAMSUNG_CPU(s3c2412, S3C2412_CPU_ID, S3C2412_CPU_MASK)
  48 IS_SAMSUNG_CPU(s3c6400, S3C6400_CPU_ID, S3C64XX_CPU_MASK)
  49 IS_SAMSUNG_CPU(s3c6410, S3C6410_CPU_ID, S3C64XX_CPU_MASK)
  50
  51 #if defined(CONFIG_CPU_S3C2410) || defined(CONFIG_CPU_S3C2412) || \
  52     defined(CONFIG_CPU_S3C2416) || defined(CONFIG_CPU_S3C2440) || \
  53     defined(CONFIG_CPU_S3C2442) || defined(CONFIG_CPU_S3C244X) || \
  54     defined(CONFIG_CPU_S3C2443)
  55 # define soc_is_s3c24xx()       is_samsung_s3c24xx()
  56 # define soc_is_s3c2410()       is_samsung_s3c2410()
  57 #else
  58 # define soc_is_s3c24xx()       0
  59 # define soc_is_s3c2410()       0
  60 #endif
  61
  62 #if defined(CONFIG_CPU_S3C2412)
  63 # define soc_is_s3c2412()       is_samsung_s3c2412()
  64 #else
  65 # define soc_is_s3c2412()       0
  66 #endif
  67
  68 #if defined(CONFIG_CPU_S3C6400) || defined(CONFIG_CPU_S3C6410)
  69 # define soc_is_s3c6400()       is_samsung_s3c6400()
  70 # define soc_is_s3c6410()       is_samsung_s3c6410()
  71 # define soc_is_s3c64xx()       (is_samsung_s3c6400() || is_samsung_s3c6410())
  72 #else
  73 # define soc_is_s3c6400()       0
  74 # define soc_is_s3c6410()       0
  75 # define soc_is_s3c64xx()       0
  76 #endif
  77
  78 #define IODESC_ENT(x) { (unsigned long)S3C24XX_VA_##x, __phys_to_pfn(S3C24XX_PA_##x), S3C24XX_SZ_##x, MT_DEVICE }
  79
  80 #ifndef KHZ
  81 #define KHZ (1000)
  82 #endif
  83
  84 #ifndef MHZ
  85 #define MHZ (1000*1000)
  86 #endif
  87
  88 #define print_mhz(m) ((m) / MHZ), (((m) / 1000) % 1000)
  89
  90 /* forward declaration */
  91 struct s3c24xx_uart_resources;
  92 struct platform_device;
  93 struct s3c2410_uartcfg;
  94 struct map_desc;
  95
  96 /* per-cpu initialisation function table. */
  97
  98 struct cpu_table {
  99         unsigned long   idcode;
 100         unsigned long   idmask;
 101         void            (*map_io)(void);
 102         void            (*init_uarts)(struct s3c2410_uartcfg *cfg, int no);
 103         void            (*init_clocks)(int xtal);
 104         int             (*init)(void);
 105         const char      *name;
 106 };
 107
 108 extern void s3c_init_cpu(unsigned long idcode,
 109                          struct cpu_table *cpus, unsigned int cputab_size);
 110
 111 /* core initialisation functions */
 112
 113 extern void s3c24xx_init_io(struct map_desc *mach_desc, int size);
 114
 115 extern void s3c64xx_init_cpu(void);
 116
 117 extern unsigned int samsung_rev(void);
 118
 119 extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no);
 120
 121 extern void s3c24xx_init_clocks(int xtal);
 122
 123 extern void s3c24xx_init_uartdevs(char *name,
 124                                   struct s3c24xx_uart_resources *res,
 125                                   struct s3c2410_uartcfg *cfg, int no);
 126
 127 extern struct syscore_ops s3c2410_pm_syscore_ops;
 128 extern struct syscore_ops s3c2412_pm_syscore_ops;
 129 extern struct syscore_ops s3c2416_pm_syscore_ops;
 130 extern struct syscore_ops s3c244x_pm_syscore_ops;
 131
 132 /* system device subsystems */
 133
 134 extern struct bus_type s3c2410_subsys;
 135 extern struct bus_type s3c2410a_subsys;
 136 extern struct bus_type s3c2412_subsys;
 137 extern struct bus_type s3c2416_subsys;
 138 extern struct bus_type s3c2440_subsys;
 139 extern struct bus_type s3c2442_subsys;
 140 extern struct bus_type s3c2443_subsys;
 141 extern struct bus_type s3c6410_subsys;
 142
 143 #endif