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

   1 /* SPDX-License-Identifier: GPL-2.0 */
   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
  12 /* todo - fix when rmk changes iodescs to use `void __iomem *` */
  13
  14 #ifndef __SAMSUNG_PLAT_CPU_H
  15 #define __SAMSUNG_PLAT_CPU_H
  16
  17 extern unsigned long samsung_cpu_id;
  18
  19 #define S3C2410_CPU_ID          0x32410000
  20 #define S3C2410_CPU_MASK        0xFFFFFFFF
  21
  22 #define S3C24XX_CPU_ID          0x32400000
  23 #define S3C24XX_CPU_MASK        0xFFF00000
  24
  25 #define S3C2412_CPU_ID          0x32412000
  26 #define S3C2412_CPU_MASK        0xFFFFF000
  27
  28 #define S3C6400_CPU_ID          0x36400000
  29 #define S3C6410_CPU_ID          0x36410000
  30 #define S3C64XX_CPU_MASK        0xFFFFF000
  31
  32 #define S5PV210_CPU_ID          0x43110000
  33 #define S5PV210_CPU_MASK        0xFFFFF000
  34
  35 #define IS_SAMSUNG_CPU(name, id, mask)          \
  36 static inline int is_samsung_##name(void)       \
  37 {                                               \
  38         return ((samsung_cpu_id & mask) == (id & mask));        \
  39 }
  40
  41 IS_SAMSUNG_CPU(s3c2410, S3C2410_CPU_ID, S3C2410_CPU_MASK)
  42 IS_SAMSUNG_CPU(s3c24xx, S3C24XX_CPU_ID, S3C24XX_CPU_MASK)
  43 IS_SAMSUNG_CPU(s3c2412, S3C2412_CPU_ID, S3C2412_CPU_MASK)
  44 IS_SAMSUNG_CPU(s3c6400, S3C6400_CPU_ID, S3C64XX_CPU_MASK)
  45 IS_SAMSUNG_CPU(s3c6410, S3C6410_CPU_ID, S3C64XX_CPU_MASK)
  46
  47 #if defined(CONFIG_CPU_S3C2410) || defined(CONFIG_CPU_S3C2412) || \
  48     defined(CONFIG_CPU_S3C2416) || defined(CONFIG_CPU_S3C2440) || \
  49     defined(CONFIG_CPU_S3C2442) || defined(CONFIG_CPU_S3C244X) || \
  50     defined(CONFIG_CPU_S3C2443)
  51 # define soc_is_s3c24xx()       is_samsung_s3c24xx()
  52 # define soc_is_s3c2410()       is_samsung_s3c2410()
  53 #else
  54 # define soc_is_s3c24xx()       0
  55 # define soc_is_s3c2410()       0
  56 #endif
  57
  58 #if defined(CONFIG_CPU_S3C2412)
  59 # define soc_is_s3c2412()       is_samsung_s3c2412()
  60 #else
  61 # define soc_is_s3c2412()       0
  62 #endif
  63
  64 #if defined(CONFIG_CPU_S3C6400) || defined(CONFIG_CPU_S3C6410)
  65 # define soc_is_s3c6400()       is_samsung_s3c6400()
  66 # define soc_is_s3c6410()       is_samsung_s3c6410()
  67 # define soc_is_s3c64xx()       (is_samsung_s3c6400() || is_samsung_s3c6410())
  68 #else
  69 # define soc_is_s3c6400()       0
  70 # define soc_is_s3c6410()       0
  71 # define soc_is_s3c64xx()       0
  72 #endif
  73
  74 #define IODESC_ENT(x) { (unsigned long)S3C24XX_VA_##x, __phys_to_pfn(S3C24XX_PA_##x), S3C24XX_SZ_##x, MT_DEVICE }
  75
  76 #ifndef KHZ
  77 #define KHZ (1000)
  78 #endif
  79
  80 #ifndef MHZ
  81 #define MHZ (1000*1000)
  82 #endif
  83
  84 #define print_mhz(m) ((m) / MHZ), (((m) / 1000) % 1000)
  85
  86 /* forward declaration */
  87 struct s3c24xx_uart_resources;
  88 struct platform_device;
  89 struct s3c2410_uartcfg;
  90 struct map_desc;
  91
  92 /* per-cpu initialisation function table. */
  93
  94 struct cpu_table {
  95         unsigned long   idcode;
  96         unsigned long   idmask;
  97         void            (*map_io)(void);
  98         void            (*init_uarts)(struct s3c2410_uartcfg *cfg, int no);
  99         void            (*init_clocks)(int xtal);
 100         int             (*init)(void);
 101         const char      *name;
 102 };
 103
 104 extern void s3c_init_cpu(unsigned long idcode,
 105                          struct cpu_table *cpus, unsigned int cputab_size);
 106
 107 /* core initialisation functions */
 108
 109 extern void s3c24xx_init_io(struct map_desc *mach_desc, int size);
 110
 111 extern void s3c64xx_init_cpu(void);
 112 extern void s5p_init_cpu(const void __iomem *cpuid_addr);
 113
 114 extern unsigned int samsung_rev(void);
 115
 116 extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no);
 117
 118 extern void s3c24xx_init_clocks(int xtal);
 119
 120 extern void s3c24xx_init_uartdevs(char *name,
 121                                   struct s3c24xx_uart_resources *res,
 122                                   struct s3c2410_uartcfg *cfg, int no);
 123
 124 extern struct syscore_ops s3c2410_pm_syscore_ops;
 125 extern struct syscore_ops s3c2412_pm_syscore_ops;
 126 extern struct syscore_ops s3c2416_pm_syscore_ops;
 127 extern struct syscore_ops s3c244x_pm_syscore_ops;
 128
 129 /* system device subsystems */
 130
 131 extern struct bus_type s3c2410_subsys;
 132 extern struct bus_type s3c2410a_subsys;
 133 extern struct bus_type s3c2412_subsys;
 134 extern struct bus_type s3c2416_subsys;
 135 extern struct bus_type s3c2440_subsys;
 136 extern struct bus_type s3c2442_subsys;
 137 extern struct bus_type s3c2443_subsys;
 138 extern struct bus_type s3c6410_subsys;
 139
 140 #endif