LXR linux/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
  21extern 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)          \
  40static inline int is_samsung_##name(void)       \
  41{                                               \
  42        return ((samsung_cpu_id & mask) == (id & mask));        \
  43}
  44
  45IS_SAMSUNG_CPU(s3c2410, S3C2410_CPU_ID, S3C2410_CPU_MASK)
  46IS_SAMSUNG_CPU(s3c24xx, S3C24XX_CPU_ID, S3C24XX_CPU_MASK)
  47IS_SAMSUNG_CPU(s3c2412, S3C2412_CPU_ID, S3C2412_CPU_MASK)
  48IS_SAMSUNG_CPU(s3c6400, S3C6400_CPU_ID, S3C64XX_CPU_MASK)
  49IS_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 */
  91struct s3c24xx_uart_resources;
  92struct platform_device;
  93struct s3c2410_uartcfg;
  94struct map_desc;
  95
  96/* per-cpu initialisation function table. */
  97
  98struct 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
 108extern void s3c_init_cpu(unsigned long idcode,
 109                         struct cpu_table *cpus, unsigned int cputab_size);
 110
 111/* core initialisation functions */
 112
 113extern void s3c24xx_init_io(struct map_desc *mach_desc, int size);
 114
 115extern void s3c64xx_init_cpu(void);
 116extern void s5p_init_cpu(const void __iomem *cpuid_addr);
 117
 118extern unsigned int samsung_rev(void);
 119
 120extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no);
 121
 122extern void s3c24xx_init_clocks(int xtal);
 123
 124extern void s3c24xx_init_uartdevs(char *name,
 125                                  struct s3c24xx_uart_resources *res,
 126                                  struct s3c2410_uartcfg *cfg, int no);
 127
 128extern struct syscore_ops s3c2410_pm_syscore_ops;
 129extern struct syscore_ops s3c2412_pm_syscore_ops;
 130extern struct syscore_ops s3c2416_pm_syscore_ops;
 131extern struct syscore_ops s3c244x_pm_syscore_ops;
 132
 133/* system device subsystems */
 134
 135extern struct bus_type s3c2410_subsys;
 136extern struct bus_type s3c2410a_subsys;
 137extern struct bus_type s3c2412_subsys;
 138extern struct bus_type s3c2416_subsys;
 139extern struct bus_type s3c2440_subsys;
 140extern struct bus_type s3c2442_subsys;
 141extern struct bus_type s3c2443_subsys;
 142extern struct bus_type s3c6410_subsys;
 143
 144#endif
 145