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 
21 extern unsigned long samsung_cpu_id;
22 
23 #define S3C24XX_CPU_ID		0x32400000
24 #define S3C24XX_CPU_MASK	0xFFF00000
25 
26 #define S3C6400_CPU_ID		0x36400000
27 #define S3C6410_CPU_ID		0x36410000
28 #define S3C64XX_CPU_MASK	0xFFFFF000
29 
30 #define S5P6440_CPU_ID		0x56440000
31 #define S5P6450_CPU_ID		0x36450000
32 #define S5P64XX_CPU_MASK	0xFFFFF000
33 
34 #define S5PC100_CPU_ID		0x43100000
35 #define S5PC100_CPU_MASK	0xFFFFF000
36 
37 #define S5PV210_CPU_ID		0x43110000
38 #define S5PV210_CPU_MASK	0xFFFFF000
39 
40 #define EXYNOS4210_CPU_ID	0x43210000
41 #define EXYNOS4212_CPU_ID	0x43220000
42 #define EXYNOS4412_CPU_ID	0xE4412200
43 #define EXYNOS4_CPU_MASK	0xFFFE0000
44 
45 #define EXYNOS5250_SOC_ID	0x43520000
46 #define EXYNOS5_SOC_MASK	0xFFFFF000
47 
48 #define IS_SAMSUNG_CPU(name, id, mask)		\
49 static inline int is_samsung_##name(void)	\
50 {						\
51 	return ((samsung_cpu_id & mask) == (id & mask));	\
52 }
53 
54 IS_SAMSUNG_CPU(s3c24xx, S3C24XX_CPU_ID, S3C24XX_CPU_MASK)
55 IS_SAMSUNG_CPU(s3c6400, S3C6400_CPU_ID, S3C64XX_CPU_MASK)
56 IS_SAMSUNG_CPU(s3c6410, S3C6410_CPU_ID, S3C64XX_CPU_MASK)
57 IS_SAMSUNG_CPU(s5p6440, S5P6440_CPU_ID, S5P64XX_CPU_MASK)
58 IS_SAMSUNG_CPU(s5p6450, S5P6450_CPU_ID, S5P64XX_CPU_MASK)
59 IS_SAMSUNG_CPU(s5pc100, S5PC100_CPU_ID, S5PC100_CPU_MASK)
60 IS_SAMSUNG_CPU(s5pv210, S5PV210_CPU_ID, S5PV210_CPU_MASK)
61 IS_SAMSUNG_CPU(exynos4210, EXYNOS4210_CPU_ID, EXYNOS4_CPU_MASK)
62 IS_SAMSUNG_CPU(exynos4212, EXYNOS4212_CPU_ID, EXYNOS4_CPU_MASK)
63 IS_SAMSUNG_CPU(exynos4412, EXYNOS4412_CPU_ID, EXYNOS4_CPU_MASK)
64 IS_SAMSUNG_CPU(exynos5250, EXYNOS5250_SOC_ID, EXYNOS5_SOC_MASK)
65 
66 #if defined(CONFIG_CPU_S3C2410) || defined(CONFIG_CPU_S3C2412) || \
67     defined(CONFIG_CPU_S3C2416) || defined(CONFIG_CPU_S3C2440) || \
68     defined(CONFIG_CPU_S3C2442) || defined(CONFIG_CPU_S3C244X) || \
69     defined(CONFIG_CPU_S3C2443)
70 # define soc_is_s3c24xx()	is_samsung_s3c24xx()
71 #else
72 # define soc_is_s3c24xx()	0
73 #endif
74 
75 #if defined(CONFIG_CPU_S3C6400) || defined(CONFIG_CPU_S3C6410)
76 # define soc_is_s3c64xx()	(is_samsung_s3c6400() || is_samsung_s3c6410())
77 #else
78 # define soc_is_s3c64xx()	0
79 #endif
80 
81 #if defined(CONFIG_CPU_S5P6440)
82 # define soc_is_s5p6440()	is_samsung_s5p6440()
83 #else
84 # define soc_is_s5p6440()	0
85 #endif
86 
87 #if defined(CONFIG_CPU_S5P6450)
88 # define soc_is_s5p6450()	is_samsung_s5p6450()
89 #else
90 # define soc_is_s5p6450()	0
91 #endif
92 
93 #if defined(CONFIG_CPU_S5PC100)
94 # define soc_is_s5pc100()	is_samsung_s5pc100()
95 #else
96 # define soc_is_s5pc100()	0
97 #endif
98 
99 #if defined(CONFIG_CPU_S5PV210)
100 # define soc_is_s5pv210()	is_samsung_s5pv210()
101 #else
102 # define soc_is_s5pv210()	0
103 #endif
104 
105 #if defined(CONFIG_CPU_EXYNOS4210)
106 # define soc_is_exynos4210()	is_samsung_exynos4210()
107 #else
108 # define soc_is_exynos4210()	0
109 #endif
110 
111 #if defined(CONFIG_SOC_EXYNOS4212)
112 # define soc_is_exynos4212()	is_samsung_exynos4212()
113 #else
114 # define soc_is_exynos4212()	0
115 #endif
116 
117 #if defined(CONFIG_SOC_EXYNOS4412)
118 # define soc_is_exynos4412()	is_samsung_exynos4412()
119 #else
120 # define soc_is_exynos4412()	0
121 #endif
122 
123 #define EXYNOS4210_REV_0	(0x0)
124 #define EXYNOS4210_REV_1_0	(0x10)
125 #define EXYNOS4210_REV_1_1	(0x11)
126 
127 #if defined(CONFIG_SOC_EXYNOS5250)
128 # define soc_is_exynos5250()	is_samsung_exynos5250()
129 #else
130 # define soc_is_exynos5250()	0
131 #endif
132 
133 #define IODESC_ENT(x) { (unsigned long)S3C24XX_VA_##x, __phys_to_pfn(S3C24XX_PA_##x), S3C24XX_SZ_##x, MT_DEVICE }
134 
135 #ifndef MHZ
136 #define MHZ (1000*1000)
137 #endif
138 
139 #define print_mhz(m) ((m) / MHZ), (((m) / 1000) % 1000)
140 
141 /* forward declaration */
142 struct s3c24xx_uart_resources;
143 struct platform_device;
144 struct s3c2410_uartcfg;
145 struct map_desc;
146 
147 /* per-cpu initialisation function table. */
148 
149 struct cpu_table {
150 	unsigned long	idcode;
151 	unsigned long	idmask;
152 	void		(*map_io)(void);
153 	void		(*init_uarts)(struct s3c2410_uartcfg *cfg, int no);
154 	void		(*init_clocks)(int xtal);
155 	int		(*init)(void);
156 	const char	*name;
157 };
158 
159 extern void s3c_init_cpu(unsigned long idcode,
160 			 struct cpu_table *cpus, unsigned int cputab_size);
161 
162 /* core initialisation functions */
163 
164 extern void s3c24xx_init_irq(void);
165 extern void s5p_init_irq(u32 *vic, u32 num_vic);
166 
167 extern void s3c24xx_init_io(struct map_desc *mach_desc, int size);
168 
169 extern void s3c24xx_init_cpu(void);
170 extern void s3c64xx_init_cpu(void);
171 extern void s5p_init_cpu(void __iomem *cpuid_addr);
172 
173 extern unsigned int samsung_rev(void);
174 
175 extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no);
176 
177 extern void s3c24xx_init_clocks(int xtal);
178 
179 extern void s3c24xx_init_uartdevs(char *name,
180 				  struct s3c24xx_uart_resources *res,
181 				  struct s3c2410_uartcfg *cfg, int no);
182 
183 /* timer for 2410/2440 */
184 
185 struct sys_timer;
186 extern struct sys_timer s3c24xx_timer;
187 
188 extern struct syscore_ops s3c2410_pm_syscore_ops;
189 extern struct syscore_ops s3c2412_pm_syscore_ops;
190 extern struct syscore_ops s3c2416_pm_syscore_ops;
191 extern struct syscore_ops s3c244x_pm_syscore_ops;
192 
193 /* system device subsystems */
194 
195 extern struct bus_type s3c2410_subsys;
196 extern struct bus_type s3c2410a_subsys;
197 extern struct bus_type s3c2412_subsys;
198 extern struct bus_type s3c2416_subsys;
199 extern struct bus_type s3c2440_subsys;
200 extern struct bus_type s3c2442_subsys;
201 extern struct bus_type s3c2443_subsys;
202 extern struct bus_type s3c6410_subsys;
203 extern struct bus_type s5p64x0_subsys;
204 extern struct bus_type s5pv210_subsys;
205 extern struct bus_type exynos4_subsys;
206 
207 extern void (*s5pc1xx_idle)(void);
208 
209 #endif
210