1 /*
2  *  linux/arch/arm/mach-mmp/clock.h
3  *
4  *  This program is free software; you can redistribute it and/or modify
5  *  it under the terms of the GNU General Public License version 2 as
6  *  published by the Free Software Foundation.
7  */
8 
9 #include <linux/clkdev.h>
10 
11 struct clkops {
12 	void			(*enable)(struct clk *);
13 	void			(*disable)(struct clk *);
14 	unsigned long		(*getrate)(struct clk *);
15 };
16 
17 struct clk {
18 	const struct clkops	*ops;
19 
20 	void __iomem	*clk_rst;	/* clock reset control register */
21 	int		fnclksel;	/* functional clock select (APBC) */
22 	uint32_t	enable_val;	/* value for clock enable (APMU) */
23 	unsigned long	rate;
24 	int		enabled;
25 };
26 
27 extern struct clkops apbc_clk_ops;
28 extern struct clkops apmu_clk_ops;
29 
30 #define APBC_CLK(_name, _reg, _fnclksel, _rate)			\
31 struct clk clk_##_name = {					\
32 		.clk_rst	= (void __iomem *)APBC_##_reg,	\
33 		.fnclksel	= _fnclksel,			\
34 		.rate		= _rate,			\
35 		.ops		= &apbc_clk_ops,		\
36 }
37 
38 #define APBC_CLK_OPS(_name, _reg, _fnclksel, _rate, _ops)	\
39 struct clk clk_##_name = {					\
40 		.clk_rst	= (void __iomem *)APBC_##_reg,	\
41 		.fnclksel	= _fnclksel,			\
42 		.rate		= _rate,			\
43 		.ops		= _ops,				\
44 }
45 
46 #define APMU_CLK(_name, _reg, _eval, _rate)			\
47 struct clk clk_##_name = {					\
48 		.clk_rst	= (void __iomem *)APMU_##_reg,	\
49 		.enable_val	= _eval,			\
50 		.rate		= _rate,			\
51 		.ops		= &apmu_clk_ops,		\
52 }
53 
54 #define APMU_CLK_OPS(_name, _reg, _eval, _rate, _ops)		\
55 struct clk clk_##_name = {					\
56 		.clk_rst	= (void __iomem *)APMU_##_reg,	\
57 		.enable_val	= _eval,			\
58 		.rate		= _rate,			\
59 		.ops		= _ops,				\
60 }
61 
62 #define INIT_CLKREG(_clk, _devname, _conname)			\
63 	{							\
64 		.clk		= _clk,				\
65 		.dev_id		= _devname,			\
66 		.con_id		= _conname,			\
67 	}
68 
69 extern struct clk clk_pxa168_gpio;
70 extern struct clk clk_pxa168_timers;
71