cpu.h (3488B)
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 17extern 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) \ 36static inline int is_samsung_##name(void) \ 37{ \ 38 return ((samsung_cpu_id & mask) == (id & mask)); \ 39} 40 41IS_SAMSUNG_CPU(s3c2410, S3C2410_CPU_ID, S3C2410_CPU_MASK) 42IS_SAMSUNG_CPU(s3c24xx, S3C24XX_CPU_ID, S3C24XX_CPU_MASK) 43IS_SAMSUNG_CPU(s3c2412, S3C2412_CPU_ID, S3C2412_CPU_MASK) 44IS_SAMSUNG_CPU(s3c6400, S3C6400_CPU_ID, S3C64XX_CPU_MASK) 45IS_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 */ 87struct s3c24xx_uart_resources; 88struct platform_device; 89struct s3c2410_uartcfg; 90struct map_desc; 91 92/* per-cpu initialisation function table. */ 93 94struct 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 104extern void s3c_init_cpu(unsigned long idcode, 105 struct cpu_table *cpus, unsigned int cputab_size); 106 107/* core initialisation functions */ 108 109extern void s3c24xx_init_io(struct map_desc *mach_desc, int size); 110 111extern void s3c64xx_init_cpu(void); 112 113extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no); 114 115extern void s3c24xx_init_clocks(int xtal); 116 117extern void s3c24xx_init_uartdevs(char *name, 118 struct s3c24xx_uart_resources *res, 119 struct s3c2410_uartcfg *cfg, int no); 120 121extern struct syscore_ops s3c2410_pm_syscore_ops; 122extern struct syscore_ops s3c2412_pm_syscore_ops; 123extern struct syscore_ops s3c2416_pm_syscore_ops; 124extern struct syscore_ops s3c244x_pm_syscore_ops; 125 126extern struct bus_type s3c6410_subsys; 127 128#endif