1*c6ff132dSArnd Bergmann /* SPDX-License-Identifier: GPL-2.0 */ 2*c6ff132dSArnd Bergmann /* 3*c6ff132dSArnd Bergmann * Copyright (c) 2011 Samsung Electronics Co., Ltd. 4*c6ff132dSArnd Bergmann * http://www.samsung.com/ 5*c6ff132dSArnd Bergmann * 6*c6ff132dSArnd Bergmann * Copyright (c) 2004-2005 Simtec Electronics 7*c6ff132dSArnd Bergmann * Ben Dooks <ben@simtec.co.uk> 8*c6ff132dSArnd Bergmann * 9*c6ff132dSArnd Bergmann * Header file for Samsung CPU support 10*c6ff132dSArnd Bergmann */ 11*c6ff132dSArnd Bergmann 12*c6ff132dSArnd Bergmann /* todo - fix when rmk changes iodescs to use `void __iomem *` */ 13*c6ff132dSArnd Bergmann 14*c6ff132dSArnd Bergmann #ifndef __SAMSUNG_PLAT_CPU_H 15*c6ff132dSArnd Bergmann #define __SAMSUNG_PLAT_CPU_H 16*c6ff132dSArnd Bergmann 17*c6ff132dSArnd Bergmann extern unsigned long samsung_cpu_id; 18*c6ff132dSArnd Bergmann 19*c6ff132dSArnd Bergmann #define S3C6400_CPU_ID 0x36400000 20*c6ff132dSArnd Bergmann #define S3C6410_CPU_ID 0x36410000 21*c6ff132dSArnd Bergmann #define S3C64XX_CPU_MASK 0xFFFFF000 22*c6ff132dSArnd Bergmann 23*c6ff132dSArnd Bergmann #define S5PV210_CPU_ID 0x43110000 24*c6ff132dSArnd Bergmann #define S5PV210_CPU_MASK 0xFFFFF000 25*c6ff132dSArnd Bergmann 26*c6ff132dSArnd Bergmann #define IS_SAMSUNG_CPU(name, id, mask) \ 27*c6ff132dSArnd Bergmann static inline int is_samsung_##name(void) \ 28*c6ff132dSArnd Bergmann { \ 29*c6ff132dSArnd Bergmann return ((samsung_cpu_id & mask) == (id & mask)); \ 30*c6ff132dSArnd Bergmann } 31*c6ff132dSArnd Bergmann 32*c6ff132dSArnd Bergmann IS_SAMSUNG_CPU(s3c6400, S3C6400_CPU_ID, S3C64XX_CPU_MASK) 33*c6ff132dSArnd Bergmann IS_SAMSUNG_CPU(s3c6410, S3C6410_CPU_ID, S3C64XX_CPU_MASK) 34*c6ff132dSArnd Bergmann 35*c6ff132dSArnd Bergmann #if defined(CONFIG_CPU_S3C6400) || defined(CONFIG_CPU_S3C6410) 36*c6ff132dSArnd Bergmann # define soc_is_s3c6400() is_samsung_s3c6400() 37*c6ff132dSArnd Bergmann # define soc_is_s3c6410() is_samsung_s3c6410() 38*c6ff132dSArnd Bergmann # define soc_is_s3c64xx() (is_samsung_s3c6400() || is_samsung_s3c6410()) 39*c6ff132dSArnd Bergmann #else 40*c6ff132dSArnd Bergmann # define soc_is_s3c6400() 0 41*c6ff132dSArnd Bergmann # define soc_is_s3c6410() 0 42*c6ff132dSArnd Bergmann # define soc_is_s3c64xx() 0 43*c6ff132dSArnd Bergmann #endif 44*c6ff132dSArnd Bergmann 45*c6ff132dSArnd Bergmann #ifndef MHZ 46*c6ff132dSArnd Bergmann #define MHZ (1000*1000) 47*c6ff132dSArnd Bergmann #endif 48*c6ff132dSArnd Bergmann 49*c6ff132dSArnd Bergmann #define print_mhz(m) ((m) / MHZ), (((m) / 1000) % 1000) 50*c6ff132dSArnd Bergmann 51*c6ff132dSArnd Bergmann /* forward declaration */ 52*c6ff132dSArnd Bergmann struct s3c24xx_uart_resources; 53*c6ff132dSArnd Bergmann struct platform_device; 54*c6ff132dSArnd Bergmann struct s3c2410_uartcfg; 55*c6ff132dSArnd Bergmann struct map_desc; 56*c6ff132dSArnd Bergmann 57*c6ff132dSArnd Bergmann /* per-cpu initialisation function table. */ 58*c6ff132dSArnd Bergmann 59*c6ff132dSArnd Bergmann struct cpu_table { 60*c6ff132dSArnd Bergmann unsigned long idcode; 61*c6ff132dSArnd Bergmann unsigned long idmask; 62*c6ff132dSArnd Bergmann void (*map_io)(void); 63*c6ff132dSArnd Bergmann void (*init_uarts)(struct s3c2410_uartcfg *cfg, int no); 64*c6ff132dSArnd Bergmann int (*init)(void); 65*c6ff132dSArnd Bergmann const char *name; 66*c6ff132dSArnd Bergmann }; 67*c6ff132dSArnd Bergmann 68*c6ff132dSArnd Bergmann extern void s3c_init_cpu(unsigned long idcode, 69*c6ff132dSArnd Bergmann struct cpu_table *cpus, unsigned int cputab_size); 70*c6ff132dSArnd Bergmann 71*c6ff132dSArnd Bergmann /* core initialisation functions */ 72*c6ff132dSArnd Bergmann extern void s3c64xx_init_cpu(void); 73*c6ff132dSArnd Bergmann 74*c6ff132dSArnd Bergmann extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no); 75*c6ff132dSArnd Bergmann extern void s3c24xx_init_uartdevs(char *name, 76*c6ff132dSArnd Bergmann struct s3c24xx_uart_resources *res, 77*c6ff132dSArnd Bergmann struct s3c2410_uartcfg *cfg, int no); 78*c6ff132dSArnd Bergmann 79*c6ff132dSArnd Bergmann extern struct bus_type s3c6410_subsys; 80*c6ff132dSArnd Bergmann 81*c6ff132dSArnd Bergmann #endif 82