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 	int			(*setrate)(struct clk *, unsigned long);
16 };
17 
18 struct clk {
19 	const struct clkops	*ops;
20 
21 	void __iomem	*clk_rst;	/* clock reset control register */
22 	int		fnclksel;	/* functional clock select (APBC) */
23 	uint32_t	enable_val;	/* value for clock enable (APMU) */
24 	unsigned long	rate;
25 	int		enabled;
26 };
27 
28 extern struct clkops apbc_clk_ops;
29 extern struct clkops apmu_clk_ops;
30 
31 #define APBC_CLK(_name, _reg, _fnclksel, _rate)			\
32 struct clk clk_##_name = {					\
33 		.clk_rst	= APBC_##_reg,			\
34 		.fnclksel	= _fnclksel,			\
35 		.rate		= _rate,			\
36 		.ops		= &apbc_clk_ops,		\
37 }
38 
39 #define APBC_CLK_OPS(_name, _reg, _fnclksel, _rate, _ops)	\
40 struct clk clk_##_name = {					\
41 		.clk_rst	= APBC_##_reg,			\
42 		.fnclksel	= _fnclksel,			\
43 		.rate		= _rate,			\
44 		.ops		= _ops,				\
45 }
46 
47 #define APMU_CLK(_name, _reg, _eval, _rate)			\
48 struct clk clk_##_name = {					\
49 		.clk_rst	= APMU_##_reg,			\
50 		.enable_val	= _eval,			\
51 		.rate		= _rate,			\
52 		.ops		= &apmu_clk_ops,		\
53 }
54 
55 #define APMU_CLK_OPS(_name, _reg, _eval, _rate, _ops)		\
56 struct clk clk_##_name = {					\
57 		.clk_rst	= APMU_##_reg,			\
58 		.enable_val	= _eval,			\
59 		.rate		= _rate,			\
60 		.ops		= _ops,				\
61 }
62 
63 #define INIT_CLKREG(_clk, _devname, _conname)			\
64 	{							\
65 		.clk		= _clk,				\
66 		.dev_id		= _devname,			\
67 		.con_id		= _conname,			\
68 	}
69 
70 extern struct clk clk_pxa168_gpio;
71 extern struct clk clk_pxa168_timers;
72