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
21extern unsigned long samsung_cpu_id;
22
23#define S3C2410_CPU_ID		0x32410000
24#define S3C2410_CPU_MASK	0xFFFFFFFF
25
26#define S3C24XX_CPU_ID		0x32400000
27#define S3C24XX_CPU_MASK	0xFFF00000
28
29#define S3C2412_CPU_ID		0x32412000
30#define S3C2412_CPU_MASK	0xFFFFF000
31
32#define S3C6400_CPU_ID		0x36400000
33#define S3C6410_CPU_ID		0x36410000
34#define S3C64XX_CPU_MASK	0xFFFFF000
35
36#define S5PV210_CPU_ID		0x43110000
37#define S5PV210_CPU_MASK	0xFFFFF000
38
39#define IS_SAMSUNG_CPU(name, id, mask)		\
40static inline int is_samsung_##name(void)	\
41{						\
42	return ((samsung_cpu_id & mask) == (id & mask));	\
43}
44
45IS_SAMSUNG_CPU(s3c2410, S3C2410_CPU_ID, S3C2410_CPU_MASK)
46IS_SAMSUNG_CPU(s3c24xx, S3C24XX_CPU_ID, S3C24XX_CPU_MASK)
47IS_SAMSUNG_CPU(s3c2412, S3C2412_CPU_ID, S3C2412_CPU_MASK)
48IS_SAMSUNG_CPU(s3c6400, S3C6400_CPU_ID, S3C64XX_CPU_MASK)
49IS_SAMSUNG_CPU(s3c6410, S3C6410_CPU_ID, S3C64XX_CPU_MASK)
50
51#if defined(CONFIG_CPU_S3C2410) || defined(CONFIG_CPU_S3C2412) || \
52    defined(CONFIG_CPU_S3C2416) || defined(CONFIG_CPU_S3C2440) || \
53    defined(CONFIG_CPU_S3C2442) || defined(CONFIG_CPU_S3C244X) || \
54    defined(CONFIG_CPU_S3C2443)
55# define soc_is_s3c24xx()	is_samsung_s3c24xx()
56# define soc_is_s3c2410()	is_samsung_s3c2410()
57#else
58# define soc_is_s3c24xx()	0
59# define soc_is_s3c2410()	0
60#endif
61
62#if defined(CONFIG_CPU_S3C2412)
63# define soc_is_s3c2412()	is_samsung_s3c2412()
64#else
65# define soc_is_s3c2412()	0
66#endif
67
68#if defined(CONFIG_CPU_S3C6400) || defined(CONFIG_CPU_S3C6410)
69# define soc_is_s3c6400()	is_samsung_s3c6400()
70# define soc_is_s3c6410()	is_samsung_s3c6410()
71# define soc_is_s3c64xx()	(is_samsung_s3c6400() || is_samsung_s3c6410())
72#else
73# define soc_is_s3c6400()	0
74# define soc_is_s3c6410()	0
75# define soc_is_s3c64xx()	0
76#endif
77
78#define IODESC_ENT(x) { (unsigned long)S3C24XX_VA_##x, __phys_to_pfn(S3C24XX_PA_##x), S3C24XX_SZ_##x, MT_DEVICE }
79
80#ifndef KHZ
81#define KHZ (1000)
82#endif
83
84#ifndef MHZ
85#define MHZ (1000*1000)
86#endif
87
88#define print_mhz(m) ((m) / MHZ), (((m) / 1000) % 1000)
89
90/* forward declaration */
91struct s3c24xx_uart_resources;
92struct platform_device;
93struct s3c2410_uartcfg;
94struct map_desc;
95
96/* per-cpu initialisation function table. */
97
98struct cpu_table {
99	unsigned long	idcode;
100	unsigned long	idmask;
101	void		(*map_io)(void);
102	void		(*init_uarts)(struct s3c2410_uartcfg *cfg, int no);
103	void		(*init_clocks)(int xtal);
104	int		(*init)(void);
105	const char	*name;
106};
107
108extern void s3c_init_cpu(unsigned long idcode,
109			 struct cpu_table *cpus, unsigned int cputab_size);
110
111/* core initialisation functions */
112
113extern void s3c24xx_init_io(struct map_desc *mach_desc, int size);
114
115extern void s3c64xx_init_cpu(void);
116
117extern unsigned int samsung_rev(void);
118
119extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no);
120
121extern void s3c24xx_init_clocks(int xtal);
122
123extern void s3c24xx_init_uartdevs(char *name,
124				  struct s3c24xx_uart_resources *res,
125				  struct s3c2410_uartcfg *cfg, int no);
126
127extern struct syscore_ops s3c2410_pm_syscore_ops;
128extern struct syscore_ops s3c2412_pm_syscore_ops;
129extern struct syscore_ops s3c2416_pm_syscore_ops;
130extern struct syscore_ops s3c244x_pm_syscore_ops;
131
132/* system device subsystems */
133
134extern struct bus_type s3c2410_subsys;
135extern struct bus_type s3c2410a_subsys;
136extern struct bus_type s3c2412_subsys;
137extern struct bus_type s3c2416_subsys;
138extern struct bus_type s3c2440_subsys;
139extern struct bus_type s3c2442_subsys;
140extern struct bus_type s3c2443_subsys;
141extern struct bus_type s3c6410_subsys;
142
143#endif
144