1/* 2 * linux/arch/arm/mach-omap1/clock.h 3 * 4 * Copyright (C) 2004 - 2005, 2009 Nokia corporation 5 * Written by Tuukka Tikkanen <tuukka.tikkanen@elektrobit.com> 6 * Based on clocks.h by Tony Lindgren, Gordon McNutt and RidgeRun, Inc 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 13#ifndef __ARCH_ARM_MACH_OMAP1_CLOCK_H 14#define __ARCH_ARM_MACH_OMAP1_CLOCK_H 15 16#include <linux/clk.h> 17 18#include <plat/clock.h> 19 20extern int __init omap1_clk_init(void); 21extern int omap1_clk_enable(struct clk *clk); 22extern void omap1_clk_disable(struct clk *clk); 23extern long omap1_clk_round_rate(struct clk *clk, unsigned long rate); 24extern int omap1_clk_set_rate(struct clk *clk, unsigned long rate); 25extern unsigned long omap1_ckctl_recalc(struct clk *clk); 26extern int omap1_set_sossi_rate(struct clk *clk, unsigned long rate); 27extern unsigned long omap1_sossi_recalc(struct clk *clk); 28extern unsigned long omap1_ckctl_recalc_dsp_domain(struct clk *clk); 29extern int omap1_clk_set_rate_dsp_domain(struct clk *clk, unsigned long rate); 30extern int omap1_set_uart_rate(struct clk *clk, unsigned long rate); 31extern unsigned long omap1_uart_recalc(struct clk *clk); 32extern int omap1_set_ext_clk_rate(struct clk *clk, unsigned long rate); 33extern long omap1_round_ext_clk_rate(struct clk *clk, unsigned long rate); 34extern void omap1_init_ext_clk(struct clk *clk); 35extern int omap1_select_table_rate(struct clk *clk, unsigned long rate); 36extern long omap1_round_to_table_rate(struct clk *clk, unsigned long rate); 37extern int omap1_clk_set_rate_ckctl_arm(struct clk *clk, unsigned long rate); 38extern long omap1_clk_round_rate_ckctl_arm(struct clk *clk, unsigned long rate); 39extern unsigned long omap1_watchdog_recalc(struct clk *clk); 40 41#ifdef CONFIG_OMAP_RESET_CLOCKS 42extern void omap1_clk_disable_unused(struct clk *clk); 43#else 44#define omap1_clk_disable_unused NULL 45#endif 46 47struct uart_clk { 48 struct clk clk; 49 unsigned long sysc_addr; 50}; 51 52/* Provide a method for preventing idling some ARM IDLECT clocks */ 53struct arm_idlect1_clk { 54 struct clk clk; 55 unsigned long no_idle_count; 56 __u8 idlect_shift; 57}; 58 59/* ARM_CKCTL bit shifts */ 60#define CKCTL_PERDIV_OFFSET 0 61#define CKCTL_LCDDIV_OFFSET 2 62#define CKCTL_ARMDIV_OFFSET 4 63#define CKCTL_DSPDIV_OFFSET 6 64#define CKCTL_TCDIV_OFFSET 8 65#define CKCTL_DSPMMUDIV_OFFSET 10 66/*#define ARM_TIMXO 12*/ 67#define EN_DSPCK 13 68/*#define ARM_INTHCK_SEL 14*/ /* Divide-by-2 for mpu inth_ck */ 69/* DSP_CKCTL bit shifts */ 70#define CKCTL_DSPPERDIV_OFFSET 0 71 72/* ARM_IDLECT2 bit shifts */ 73#define EN_WDTCK 0 74#define EN_XORPCK 1 75#define EN_PERCK 2 76#define EN_LCDCK 3 77#define EN_LBCK 4 /* Not on 1610/1710 */ 78/*#define EN_HSABCK 5*/ 79#define EN_APICK 6 80#define EN_TIMCK 7 81#define DMACK_REQ 8 82#define EN_GPIOCK 9 /* Not on 1610/1710 */ 83/*#define EN_LBFREECK 10*/ 84#define EN_CKOUT_ARM 11 85 86/* ARM_IDLECT3 bit shifts */ 87#define EN_OCPI_CK 0 88#define EN_TC1_CK 2 89#define EN_TC2_CK 4 90 91/* DSP_IDLECT2 bit shifts (0,1,2 are same as for ARM_IDLECT2) */ 92#define EN_DSPTIMCK 5 93 94/* Various register defines for clock controls scattered around OMAP chip */ 95#define SDW_MCLK_INV_BIT 2 /* In ULPD_CLKC_CTRL */ 96#define USB_MCLK_EN_BIT 4 /* In ULPD_CLKC_CTRL */ 97#define USB_HOST_HHC_UHOST_EN 9 /* In MOD_CONF_CTRL_0 */ 98#define SWD_ULPD_PLL_CLK_REQ 1 /* In SWD_CLK_DIV_CTRL_SEL */ 99#define COM_ULPD_PLL_CLK_REQ 1 /* In COM_CLK_DIV_CTRL_SEL */ 100#define SWD_CLK_DIV_CTRL_SEL 0xfffe0874 101#define COM_CLK_DIV_CTRL_SEL 0xfffe0878 102#define SOFT_REQ_REG 0xfffe0834 103#define SOFT_REQ_REG2 0xfffe0880 104 105extern __u32 arm_idlect1_mask; 106extern struct clk *api_ck_p, *ck_dpll1_p, *ck_ref_p; 107 108extern const struct clkops clkops_dspck; 109extern const struct clkops clkops_dummy; 110extern const struct clkops clkops_uart_16xx; 111extern const struct clkops clkops_generic; 112 113#endif 114