1/* linux/include/asm-arm/plat-s3c24xx/clock.h 2 * linux/arch/arm/mach-s3c2410/clock.h 3 * 4 * Copyright (c) 2004-2005 Simtec Electronics 5 * http://www.simtec.co.uk/products/SWLINUX/ 6 * Written by Ben Dooks, <ben@simtec.co.uk> 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License version 2 as 10 * published by the Free Software Foundation. 11*/ 12 13struct clk { 14 struct list_head list; 15 struct module *owner; 16 struct clk *parent; 17 const char *name; 18 int id; 19 int usage; 20 unsigned long rate; 21 unsigned long ctrlbit; 22 23 int (*enable)(struct clk *, int enable); 24 int (*set_rate)(struct clk *c, unsigned long rate); 25 unsigned long (*get_rate)(struct clk *c); 26 unsigned long (*round_rate)(struct clk *c, unsigned long rate); 27 int (*set_parent)(struct clk *c, struct clk *parent); 28}; 29 30/* other clocks which may be registered by board support */ 31 32extern struct clk s3c24xx_dclk0; 33extern struct clk s3c24xx_dclk1; 34extern struct clk s3c24xx_clkout0; 35extern struct clk s3c24xx_clkout1; 36extern struct clk s3c24xx_uclk; 37 38extern struct clk clk_usb_bus; 39 40/* core clock support */ 41 42extern struct clk clk_f; 43extern struct clk clk_h; 44extern struct clk clk_p; 45extern struct clk clk_mpll; 46extern struct clk clk_upll; 47extern struct clk clk_xtal; 48 49/* exports for arch/arm/mach-s3c2410 50 * 51 * Please DO NOT use these outside of arch/arm/mach-s3c2410 52*/ 53 54extern struct mutex clocks_mutex; 55 56extern int s3c2410_clkcon_enable(struct clk *clk, int enable); 57 58extern int s3c24xx_register_clock(struct clk *clk); 59extern int s3c24xx_register_clocks(struct clk **clk, int nr_clks); 60 61extern int s3c24xx_setup_clocks(unsigned long xtal, 62 unsigned long fclk, 63 unsigned long hclk, 64 unsigned long pclk); 65