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 20 extern int __init omap1_clk_init(void); 21 extern int omap1_clk_enable(struct clk *clk); 22 extern void omap1_clk_disable(struct clk *clk); 23 extern long omap1_clk_round_rate(struct clk *clk, unsigned long rate); 24 extern int omap1_clk_set_rate(struct clk *clk, unsigned long rate); 25 extern unsigned long omap1_ckctl_recalc(struct clk *clk); 26 extern int omap1_set_sossi_rate(struct clk *clk, unsigned long rate); 27 extern unsigned long omap1_sossi_recalc(struct clk *clk); 28 extern unsigned long omap1_ckctl_recalc_dsp_domain(struct clk *clk); 29 extern int omap1_clk_set_rate_dsp_domain(struct clk *clk, unsigned long rate); 30 extern int omap1_set_uart_rate(struct clk *clk, unsigned long rate); 31 extern unsigned long omap1_uart_recalc(struct clk *clk); 32 extern int omap1_set_ext_clk_rate(struct clk *clk, unsigned long rate); 33 extern long omap1_round_ext_clk_rate(struct clk *clk, unsigned long rate); 34 extern void omap1_init_ext_clk(struct clk *clk); 35 extern int omap1_select_table_rate(struct clk *clk, unsigned long rate); 36 extern long omap1_round_to_table_rate(struct clk *clk, unsigned long rate); 37 extern int omap1_clk_set_rate_ckctl_arm(struct clk *clk, unsigned long rate); 38 extern long omap1_clk_round_rate_ckctl_arm(struct clk *clk, unsigned long rate); 39 extern unsigned long omap1_watchdog_recalc(struct clk *clk); 40 41 #ifdef CONFIG_OMAP_RESET_CLOCKS 42 extern void omap1_clk_disable_unused(struct clk *clk); 43 #else 44 #define omap1_clk_disable_unused NULL 45 #endif 46 47 struct uart_clk { 48 struct clk clk; 49 unsigned long sysc_addr; 50 }; 51 52 /* Provide a method for preventing idling some ARM IDLECT clocks */ 53 struct 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 104 105 extern __u32 arm_idlect1_mask; 106 extern struct clk *api_ck_p, *ck_dpll1_p, *ck_ref_p; 107 108 extern const struct clkops clkops_dspck; 109 extern const struct clkops clkops_dummy; 110 extern const struct clkops clkops_uart_16xx; 111 extern const struct clkops clkops_generic; 112 113 #endif 114