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); 112 113 extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no); 114 115 extern void s3c24xx_init_clocks(int xtal); 116 117 extern void s3c24xx_init_uartdevs(char *name, 118 struct s3c24xx_uart_resources *res, 119 struct s3c2410_uartcfg *cfg, int no); 120 121 extern struct syscore_ops s3c2410_pm_syscore_ops; 122 extern struct syscore_ops s3c2412_pm_syscore_ops; 123 extern struct syscore_ops s3c2416_pm_syscore_ops; 124 extern struct syscore_ops s3c244x_pm_syscore_ops; 125 126 extern struct bus_type s3c6410_subsys; 127 128 #endif 129