1 /* linux/arch/arm/plat-s3c/include/plat/clock.h
3 * Copyright (c) 2004-2005 Simtec Electronics
4 * http://www.simtec.co.uk/products/SWLINUX/
5 * Written by Ben Dooks, <ben@simtec.co.uk>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
12 #include <linux/spinlock.h>
15 struct list_head list;
22 unsigned long ctrlbit;
24 int (*enable)(struct clk *, int enable);
25 int (*set_rate)(struct clk *c, unsigned long rate);
26 unsigned long (*get_rate)(struct clk *c);
27 unsigned long (*round_rate)(struct clk *c, unsigned long rate);
28 int (*set_parent)(struct clk *c, struct clk *parent);
31 /* other clocks which may be registered by board support */
33 extern struct clk s3c24xx_dclk0;
34 extern struct clk s3c24xx_dclk1;
35 extern struct clk s3c24xx_clkout0;
36 extern struct clk s3c24xx_clkout1;
37 extern struct clk s3c24xx_uclk;
39 extern struct clk clk_usb_bus;
41 /* core clock support */
43 extern struct clk clk_f;
44 extern struct clk clk_h;
45 extern struct clk clk_p;
46 extern struct clk clk_mpll;
47 extern struct clk clk_upll;
48 extern struct clk clk_epll;
49 extern struct clk clk_xtal;
50 extern struct clk clk_ext;
52 /* S3C64XX specific clocks */
53 extern struct clk clk_27m;
54 extern struct clk clk_48m;
56 /* exports for arch/arm/mach-s3c2410
58 * Please DO NOT use these outside of arch/arm/mach-s3c2410
61 extern spinlock_t clocks_lock;
63 extern int s3c2410_clkcon_enable(struct clk *clk, int enable);
65 extern int s3c24xx_register_clock(struct clk *clk);
66 extern int s3c24xx_register_clocks(struct clk **clk, int nr_clks);
68 extern int s3c24xx_register_baseclocks(unsigned long xtal);
70 extern void s3c64xx_register_clocks(void);
72 extern void s3c24xx_setup_clocks(unsigned long fclk,
76 extern void s3c2410_setup_clocks(void);
77 extern void s3c2412_setup_clocks(void);
78 extern void s3c244x_setup_clocks(void);
79 extern void s3c2443_setup_clocks(void);
81 /* S3C64XX specific functions and clocks */
83 extern int s3c64xx_sclk_ctrl(struct clk *clk, int enable);
85 /* Init for pwm clock code */
87 extern void s3c_pwmclk_init(void);