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 S5P6440_CPU_ID          0x56440000
  37 #define S5P6450_CPU_ID          0x36450000
  38 #define S5P64XX_CPU_MASK        0xFFFFF000
  39
  40 #define S5PC100_CPU_ID          0x43100000
  41 #define S5PC100_CPU_MASK        0xFFFFF000
  42
  43 #define S5PV210_CPU_ID          0x43110000
  44 #define S5PV210_CPU_MASK        0xFFFFF000
  45
  46 #define IS_SAMSUNG_CPU(name, id, mask)          \
  47 static inline int is_samsung_##name(void)       \
  48 {                                               \
  49         return ((samsung_cpu_id & mask) == (id & mask));        \
  50 }
  51
  52 IS_SAMSUNG_CPU(s3c2410, S3C2410_CPU_ID, S3C2410_CPU_MASK)
  53 IS_SAMSUNG_CPU(s3c24xx, S3C24XX_CPU_ID, S3C24XX_CPU_MASK)
  54 IS_SAMSUNG_CPU(s3c2412, S3C2412_CPU_ID, S3C2412_CPU_MASK)
  55 IS_SAMSUNG_CPU(s3c6400, S3C6400_CPU_ID, S3C64XX_CPU_MASK)
  56 IS_SAMSUNG_CPU(s3c6410, S3C6410_CPU_ID, S3C64XX_CPU_MASK)
  57 IS_SAMSUNG_CPU(s5p6440, S5P6440_CPU_ID, S5P64XX_CPU_MASK)
  58 IS_SAMSUNG_CPU(s5p6450, S5P6450_CPU_ID, S5P64XX_CPU_MASK)
  59 IS_SAMSUNG_CPU(s5pc100, S5PC100_CPU_ID, S5PC100_CPU_MASK)
  60 IS_SAMSUNG_CPU(s5pv210, S5PV210_CPU_ID, S5PV210_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 # define soc_is_s3c2410()       is_samsung_s3c2410()
  68 #else
  69 # define soc_is_s3c24xx()       0
  70 # define soc_is_s3c2410()       0
  71 #endif
  72
  73 #if defined(CONFIG_CPU_S3C2412)
  74 # define soc_is_s3c2412()       is_samsung_s3c2412()
  75 #else
  76 # define soc_is_s3c2412()       0
  77 #endif
  78
  79 #if defined(CONFIG_CPU_S3C6400) || defined(CONFIG_CPU_S3C6410)
  80 # define soc_is_s3c6400()       is_samsung_s3c6400()
  81 # define soc_is_s3c6410()       is_samsung_s3c6410()
  82 # define soc_is_s3c64xx()       (is_samsung_s3c6400() || is_samsung_s3c6410())
  83 #else
  84 # define soc_is_s3c6400()       0
  85 # define soc_is_s3c6410()       0
  86 # define soc_is_s3c64xx()       0
  87 #endif
  88
  89 #if defined(CONFIG_CPU_S5P6440)
  90 # define soc_is_s5p6440()       is_samsung_s5p6440()
  91 #else
  92 # define soc_is_s5p6440()       0
  93 #endif
  94
  95 #if defined(CONFIG_CPU_S5P6450)
  96 # define soc_is_s5p6450()       is_samsung_s5p6450()
  97 #else
  98 # define soc_is_s5p6450()       0
  99 #endif
 100
 101 #if defined(CONFIG_CPU_S5PC100)
 102 # define soc_is_s5pc100()       is_samsung_s5pc100()
 103 #else
 104 # define soc_is_s5pc100()       0
 105 #endif
 106
 107 #if defined(CONFIG_CPU_S5PV210)
 108 # define soc_is_s5pv210()       is_samsung_s5pv210()
 109 #else
 110 # define soc_is_s5pv210()       0
 111 #endif
 112
 113 #define IODESC_ENT(x) { (unsigned long)S3C24XX_VA_##x, __phys_to_pfn(S3C24XX_PA_##x), S3C24XX_SZ_##x, MT_DEVICE }
 114
 115 #ifndef KHZ
 116 #define KHZ (1000)
 117 #endif
 118
 119 #ifndef MHZ
 120 #define MHZ (1000*1000)
 121 #endif
 122
 123 #define print_mhz(m) ((m) / MHZ), (((m) / 1000) % 1000)
 124
 125 /* forward declaration */
 126 struct s3c24xx_uart_resources;
 127 struct platform_device;
 128 struct s3c2410_uartcfg;
 129 struct map_desc;
 130
 131 /* per-cpu initialisation function table. */
 132
 133 struct cpu_table {
 134         unsigned long   idcode;
 135         unsigned long   idmask;
 136         void            (*map_io)(void);
 137         void            (*init_uarts)(struct s3c2410_uartcfg *cfg, int no);
 138         void            (*init_clocks)(int xtal);
 139         int             (*init)(void);
 140         const char      *name;
 141 };
 142
 143 extern void s3c_init_cpu(unsigned long idcode,
 144                          struct cpu_table *cpus, unsigned int cputab_size);
 145
 146 /* core initialisation functions */
 147
 148 extern void s5p_init_irq(u32 *vic, u32 num_vic);
 149
 150 extern void s3c24xx_init_io(struct map_desc *mach_desc, int size);
 151
 152 extern void s3c64xx_init_cpu(void);
 153 extern void s5p_init_cpu(void __iomem *cpuid_addr);
 154
 155 extern unsigned int samsung_rev(void);
 156
 157 extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no);
 158
 159 extern void s3c24xx_init_clocks(int xtal);
 160
 161 extern void s3c24xx_init_uartdevs(char *name,
 162                                   struct s3c24xx_uart_resources *res,
 163                                   struct s3c2410_uartcfg *cfg, int no);
 164
 165 extern struct syscore_ops s3c2410_pm_syscore_ops;
 166 extern struct syscore_ops s3c2412_pm_syscore_ops;
 167 extern struct syscore_ops s3c2416_pm_syscore_ops;
 168 extern struct syscore_ops s3c244x_pm_syscore_ops;
 169
 170 /* system device subsystems */
 171
 172 extern struct bus_type s3c2410_subsys;
 173 extern struct bus_type s3c2410a_subsys;
 174 extern struct bus_type s3c2412_subsys;
 175 extern struct bus_type s3c2416_subsys;
 176 extern struct bus_type s3c2440_subsys;
 177 extern struct bus_type s3c2442_subsys;
 178 extern struct bus_type s3c2443_subsys;
 179 extern struct bus_type s3c6410_subsys;
 180 extern struct bus_type s5p64x0_subsys;
 181 extern struct bus_type s5pv210_subsys;
 182
 183 extern void (*s5pc1xx_idle)(void);
 184
 185 #endif