mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-01 13:05:18 +02:00
474eca73a8
clocks off which arn't handeld by their subsystems yet. git-svn-id: svn://svn.openwrt.org/openwrt/trunk@19984 3c298f89-4303-0410-b956-a3cf2f4a3e73
76 lines
1.9 KiB
C
76 lines
1.9 KiB
C
/*
|
|
* 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 __JZ4740_CLOCK_H__
|
|
#define __JZ4740_CLOCK_H__
|
|
|
|
struct jz4740_clock_board_data {
|
|
unsigned long ext_rate;
|
|
unsigned long rtc_rate;
|
|
};
|
|
|
|
extern struct jz4740_clock_board_data jz4740_clock_bdata;
|
|
|
|
int jz4740_clock_init(void);
|
|
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
|