6b13f685e
 김민수
BSP 최초 추가
|
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
/*
* Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
* JZ4740 SoC clock support
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#ifndef __MIPS_JZ4740_CLOCK_H__
#define __MIPS_JZ4740_CLOCK_H__
#include <linux/list.h>
struct jz4740_clock_board_data {
unsigned long ext_rate;
unsigned long rtc_rate;
};
extern struct jz4740_clock_board_data jz4740_clock_bdata;
void jz4740_clock_suspend(void);
void jz4740_clock_resume(void);
struct clk;
struct clk_ops {
unsigned long (*get_rate)(struct clk *clk);
unsigned long (*round_rate)(struct clk *clk, unsigned long rate);
int (*set_rate)(struct clk *clk, unsigned long rate);
int (*enable)(struct clk *clk);
int (*disable)(struct clk *clk);
int (*is_enabled)(struct clk *clk);
int (*set_parent)(struct clk *clk, struct clk *parent);
};
struct clk {
const char *name;
struct clk *parent;
uint32_t gate_bit;
const struct clk_ops *ops;
struct list_head list;
#ifdef CONFIG_DEBUG_FS
struct dentry *debugfs_entry;
struct dentry *debugfs_parent_entry;
#endif
};
#define JZ4740_CLK_NOT_GATED ((uint32_t)-1)
int clk_is_enabled(struct clk *clk);
#ifdef CONFIG_DEBUG_FS
void jz4740_clock_debugfs_init(void);
void jz4740_clock_debugfs_add_clk(struct clk *clk);
void jz4740_clock_debugfs_update_parent(struct clk *clk);
#else
static inline void jz4740_clock_debugfs_init(void) {};
static inline void jz4740_clock_debugfs_add_clk(struct clk *clk) {};
static inline void jz4740_clock_debugfs_update_parent(struct clk *clk) {};
#endif
#endif
|