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 S3C6400_CPU_ID 0x36400000 20 #define S3C6410_CPU_ID 0x36410000 21 #define S3C64XX_CPU_MASK 0xFFFFF000 22 23 #define S5PV210_CPU_ID 0x43110000 24 #define S5PV210_CPU_MASK 0xFFFFF000 25 26 #define IS_SAMSUNG_CPU(name, id, mask) \ 27 static inline int is_samsung_##name(void) \ 28 { \ 29 return ((samsung_cpu_id & mask) == (id & mask)); \ 30 } 31 32 IS_SAMSUNG_CPU(s3c6400, S3C6400_CPU_ID, S3C64XX_CPU_MASK) 33 IS_SAMSUNG_CPU(s3c6410, S3C6410_CPU_ID, S3C64XX_CPU_MASK) 34 35 #if defined(CONFIG_CPU_S3C6400) || defined(CONFIG_CPU_S3C6410) 36 # define soc_is_s3c6400() is_samsung_s3c6400() 37 # define soc_is_s3c6410() is_samsung_s3c6410() 38 # define soc_is_s3c64xx() (is_samsung_s3c6400() || is_samsung_s3c6410()) 39 #else 40 # define soc_is_s3c6400() 0 41 # define soc_is_s3c6410() 0 42 # define soc_is_s3c64xx() 0 43 #endif 44 45 #ifndef MHZ 46 #define MHZ (1000*1000) 47 #endif 48 49 #define print_mhz(m) ((m) / MHZ), (((m) / 1000) % 1000) 50 51 /* forward declaration */ 52 struct s3c24xx_uart_resources; 53 struct platform_device; 54 struct s3c2410_uartcfg; 55 struct map_desc; 56 57 /* per-cpu initialisation function table. */ 58 59 struct cpu_table { 60 unsigned long idcode; 61 unsigned long idmask; 62 void (*map_io)(void); 63 void (*init_uarts)(struct s3c2410_uartcfg *cfg, int no); 64 int (*init)(void); 65 const char *name; 66 }; 67 68 extern void s3c_init_cpu(unsigned long idcode, 69 struct cpu_table *cpus, unsigned int cputab_size); 70 71 /* core initialisation functions */ 72 extern void s3c64xx_init_cpu(void); 73 74 extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no); 75 extern void s3c24xx_init_uartdevs(char *name, 76 struct s3c24xx_uart_resources *res, 77 struct s3c2410_uartcfg *cfg, int no); 78 79 extern struct bus_type s3c6410_subsys; 80 81 #endif 82