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 int omap1_clk_init(void); 21 void omap1_clk_late_init(void); 22 extern int omap1_clk_enable(struct clk *clk); 23 extern void omap1_clk_disable(struct clk *clk); 24 extern long omap1_clk_round_rate(struct clk *clk, unsigned long rate); 25 extern int omap1_clk_set_rate(struct clk *clk, unsigned long rate); 26 extern unsigned long omap1_ckctl_recalc(struct clk *clk); 27 extern int omap1_set_sossi_rate(struct clk *clk, unsigned long rate); 28 extern unsigned long omap1_sossi_recalc(struct clk *clk); 29 extern unsigned long omap1_ckctl_recalc_dsp_domain(struct clk *clk); 30 extern int omap1_clk_set_rate_dsp_domain(struct clk *clk, unsigned long rate); 31 extern int omap1_set_uart_rate(struct clk *clk, unsigned long rate); 32 extern unsigned long omap1_uart_recalc(struct clk *clk); 33 extern int omap1_set_ext_clk_rate(struct clk *clk, unsigned long rate); 34 extern long omap1_round_ext_clk_rate(struct clk *clk, unsigned long rate); 35 extern void omap1_init_ext_clk(struct clk *clk); 36 extern int omap1_select_table_rate(struct clk *clk, unsigned long rate); 37 extern long omap1_round_to_table_rate(struct clk *clk, unsigned long rate); 38 extern int omap1_clk_set_rate_ckctl_arm(struct clk *clk, unsigned long rate); 39 extern long omap1_clk_round_rate_ckctl_arm(struct clk *clk, unsigned long rate); 40 extern unsigned long omap1_watchdog_recalc(struct clk *clk); 41 42 #ifdef CONFIG_OMAP_RESET_CLOCKS 43 extern void omap1_clk_disable_unused(struct clk *clk); 44 #else 45 #define omap1_clk_disable_unused NULL 46 #endif 47 48 struct uart_clk { 49 struct clk clk; 50 unsigned long sysc_addr; 51 }; 52 53 /* Provide a method for preventing idling some ARM IDLECT clocks */ 54 struct arm_idlect1_clk { 55 struct clk clk; 56 unsigned long no_idle_count; 57 __u8 idlect_shift; 58 }; 59 60 /* ARM_CKCTL bit shifts */ 61 #define CKCTL_PERDIV_OFFSET 0 62 #define CKCTL_LCDDIV_OFFSET 2 63 #define CKCTL_ARMDIV_OFFSET 4 64 #define CKCTL_DSPDIV_OFFSET 6 65 #define CKCTL_TCDIV_OFFSET 8 66 #define CKCTL_DSPMMUDIV_OFFSET 10 67 /*#define ARM_TIMXO 12*/ 68 #define EN_DSPCK 13 69 /*#define ARM_INTHCK_SEL 14*/ /* Divide-by-2 for mpu inth_ck */ 70 /* DSP_CKCTL bit shifts */ 71 #define CKCTL_DSPPERDIV_OFFSET 0 72 73 /* ARM_IDLECT2 bit shifts */ 74 #define EN_WDTCK 0 75 #define EN_XORPCK 1 76 #define EN_PERCK 2 77 #define EN_LCDCK 3 78 #define EN_LBCK 4 /* Not on 1610/1710 */ 79 /*#define EN_HSABCK 5*/ 80 #define EN_APICK 6 81 #define EN_TIMCK 7 82 #define DMACK_REQ 8 83 #define EN_GPIOCK 9 /* Not on 1610/1710 */ 84 /*#define EN_LBFREECK 10*/ 85 #define EN_CKOUT_ARM 11 86 87 /* ARM_IDLECT3 bit shifts */ 88 #define EN_OCPI_CK 0 89 #define EN_TC1_CK 2 90 #define EN_TC2_CK 4 91 92 /* DSP_IDLECT2 bit shifts (0,1,2 are same as for ARM_IDLECT2) */ 93 #define EN_DSPTIMCK 5 94 95 /* Various register defines for clock controls scattered around OMAP chip */ 96 #define SDW_MCLK_INV_BIT 2 /* In ULPD_CLKC_CTRL */ 97 #define USB_MCLK_EN_BIT 4 /* In ULPD_CLKC_CTRL */ 98 #define USB_HOST_HHC_UHOST_EN 9 /* In MOD_CONF_CTRL_0 */ 99 #define SWD_ULPD_PLL_CLK_REQ 1 /* In SWD_CLK_DIV_CTRL_SEL */ 100 #define COM_ULPD_PLL_CLK_REQ 1 /* In COM_CLK_DIV_CTRL_SEL */ 101 #define SWD_CLK_DIV_CTRL_SEL 0xfffe0874 102 #define COM_CLK_DIV_CTRL_SEL 0xfffe0878 103 #define SOFT_REQ_REG 0xfffe0834 104 #define SOFT_REQ_REG2 0xfffe0880 105 106 extern __u32 arm_idlect1_mask; 107 extern struct clk *api_ck_p, *ck_dpll1_p, *ck_ref_p; 108 109 extern const struct clkops clkops_dspck; 110 extern const struct clkops clkops_dummy; 111 extern const struct clkops clkops_uart_16xx; 112 extern const struct clkops clkops_generic; 113 114 /* used for passing SoC type to omap1_{select,round_to}_table_rate() */ 115 extern u32 cpu_mask; 116 117 #endif 118