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 S5PC100_CPU_ID          0x43100000
  37 #define S5PC100_CPU_MASK        0xFFFFF000
  38
  39 #define S5PV210_CPU_ID          0x43110000
  40 #define S5PV210_CPU_MASK        0xFFFFF000
  41
  42 #define IS_SAMSUNG_CPU(name, id, mask)          \
  43 static inline int is_samsung_##name(void)       \
  44 {                                               \
  45         return ((samsung_cpu_id & mask) == (id & mask));        \
  46 }
  47
  48 IS_SAMSUNG_CPU(s3c2410, S3C2410_CPU_ID, S3C2410_CPU_MASK)
  49 IS_SAMSUNG_CPU(s3c24xx, S3C24XX_CPU_ID, S3C24XX_CPU_MASK)
  50 IS_SAMSUNG_CPU(s3c2412, S3C2412_CPU_ID, S3C2412_CPU_MASK)
  51 IS_SAMSUNG_CPU(s3c6400, S3C6400_CPU_ID, S3C64XX_CPU_MASK)
  52 IS_SAMSUNG_CPU(s3c6410, S3C6410_CPU_ID, S3C64XX_CPU_MASK)
  53 IS_SAMSUNG_CPU(s5pc100, S5PC100_CPU_ID, S5PC100_CPU_MASK)
  54 IS_SAMSUNG_CPU(s5pv210, S5PV210_CPU_ID, S5PV210_CPU_MASK)
  55
  56 #if defined(CONFIG_CPU_S3C2410) || defined(CONFIG_CPU_S3C2412) || \
  57     defined(CONFIG_CPU_S3C2416) || defined(CONFIG_CPU_S3C2440) || \
  58     defined(CONFIG_CPU_S3C2442) || defined(CONFIG_CPU_S3C244X) || \
  59     defined(CONFIG_CPU_S3C2443)
  60 # define soc_is_s3c24xx()       is_samsung_s3c24xx()
  61 # define soc_is_s3c2410()       is_samsung_s3c2410()
  62 #else
  63 # define soc_is_s3c24xx()       0
  64 # define soc_is_s3c2410()       0
  65 #endif
  66
  67 #if defined(CONFIG_CPU_S3C2412)
  68 # define soc_is_s3c2412()       is_samsung_s3c2412()
  69 #else
  70 # define soc_is_s3c2412()       0
  71 #endif
  72
  73 #if defined(CONFIG_CPU_S3C6400) || defined(CONFIG_CPU_S3C6410)
  74 # define soc_is_s3c6400()       is_samsung_s3c6400()
  75 # define soc_is_s3c6410()       is_samsung_s3c6410()
  76 # define soc_is_s3c64xx()       (is_samsung_s3c6400() || is_samsung_s3c6410())
  77 #else
  78 # define soc_is_s3c6400()       0
  79 # define soc_is_s3c6410()       0
  80 # define soc_is_s3c64xx()       0
  81 #endif
  82
  83 #if defined(CONFIG_CPU_S5PC100)
  84 # define soc_is_s5pc100()       is_samsung_s5pc100()
  85 #else
  86 # define soc_is_s5pc100()       0
  87 #endif
  88
  89 #if defined(CONFIG_CPU_S5PV210)
  90 # define soc_is_s5pv210()       is_samsung_s5pv210()
  91 #else
  92 # define soc_is_s5pv210()       0
  93 #endif
  94
  95 #define IODESC_ENT(x) { (unsigned long)S3C24XX_VA_##x, __phys_to_pfn(S3C24XX_PA_##x), S3C24XX_SZ_##x, MT_DEVICE }
  96
  97 #ifndef KHZ
  98 #define KHZ (1000)
  99 #endif
 100
 101 #ifndef MHZ
 102 #define MHZ (1000*1000)
 103 #endif
 104
 105 #define print_mhz(m) ((m) / MHZ), (((m) / 1000) % 1000)
 106
 107 /* forward declaration */
 108 struct s3c24xx_uart_resources;
 109 struct platform_device;
 110 struct s3c2410_uartcfg;
 111 struct map_desc;
 112
 113 /* per-cpu initialisation function table. */
 114
 115 struct cpu_table {
 116         unsigned long   idcode;
 117         unsigned long   idmask;
 118         void            (*map_io)(void);
 119         void            (*init_uarts)(struct s3c2410_uartcfg *cfg, int no);
 120         void            (*init_clocks)(int xtal);
 121         int             (*init)(void);
 122         const char      *name;
 123 };
 124
 125 extern void s3c_init_cpu(unsigned long idcode,
 126                          struct cpu_table *cpus, unsigned int cputab_size);
 127
 128 /* core initialisation functions */
 129
 130 extern void s5p_init_irq(u32 *vic, u32 num_vic);
 131
 132 extern void s3c24xx_init_io(struct map_desc *mach_desc, int size);
 133
 134 extern void s3c64xx_init_cpu(void);
 135 extern void s5p_init_cpu(void __iomem *cpuid_addr);
 136
 137 extern unsigned int samsung_rev(void);
 138
 139 extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no);
 140
 141 extern void s3c24xx_init_clocks(int xtal);
 142
 143 extern void s3c24xx_init_uartdevs(char *name,
 144                                   struct s3c24xx_uart_resources *res,
 145                                   struct s3c2410_uartcfg *cfg, int no);
 146
 147 extern struct syscore_ops s3c2410_pm_syscore_ops;
 148 extern struct syscore_ops s3c2412_pm_syscore_ops;
 149 extern struct syscore_ops s3c2416_pm_syscore_ops;
 150 extern struct syscore_ops s3c244x_pm_syscore_ops;
 151
 152 /* system device subsystems */
 153
 154 extern struct bus_type s3c2410_subsys;
 155 extern struct bus_type s3c2410a_subsys;
 156 extern struct bus_type s3c2412_subsys;
 157 extern struct bus_type s3c2416_subsys;
 158 extern struct bus_type s3c2440_subsys;
 159 extern struct bus_type s3c2442_subsys;
 160 extern struct bus_type s3c2443_subsys;
 161 extern struct bus_type s3c6410_subsys;
 162 extern struct bus_type s5pv210_subsys;
 163
 164 extern void (*s5pc1xx_idle)(void);
 165
 166 #endif