1 /* 2 * Copyright (c) 2010 3 * Ben Gray <ben.r.gray@gmail.com>. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Ben Gray. 17 * 4. The name of the company nor the name of the author may be used to 18 * endorse or promote products derived from this software without specific 19 * prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY BEN GRAY ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL BEN GRAY BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 26 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 27 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 28 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 29 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 30 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 * 32 * $FreeBSD$ 33 */ 34 35 36 /* 37 * Texas Instruments - OMAP3xxx series processors 38 * 39 * Reference: 40 * OMAP35x Applications Processor 41 * Technical Reference Manual 42 * (omap35xx_techref.pdf) 43 */ 44 #ifndef _TI_PRCM_H_ 45 #define _TI_PRCM_H_ 46 47 typedef enum { 48 49 INVALID_CLK_IDENT = 0, 50 51 /* System clocks, typically you can only call ti_prcm_clk_get_source_freq() 52 * on these clocks as they are enabled by default. 53 */ 54 SYS_CLK = 1, 55 56 /* The MPU (ARM) core clock */ 57 MPU_CLK = 20, 58 59 /* MMC modules */ 60 MMC1_CLK = 100, 61 MMC2_CLK, 62 MMC3_CLK, 63 MMC4_CLK, 64 MMC5_CLK, 65 MMC6_CLK, 66 67 /* I2C modules */ 68 I2C1_CLK = 200, 69 I2C2_CLK, 70 I2C3_CLK, 71 I2C4_CLK, 72 I2C5_CLK, 73 74 /* USB module(s) */ 75 USBTLL_CLK = 300, 76 USBHSHOST_CLK, 77 USBFSHOST_CLK, 78 USBP1_PHY_CLK, 79 USBP2_PHY_CLK, 80 USBP1_UTMI_CLK, 81 USBP2_UTMI_CLK, 82 USBP1_HSIC_CLK, 83 USBP2_HSIC_CLK, 84 85 /* UART modules */ 86 UART1_CLK = 400, 87 UART2_CLK, 88 UART3_CLK, 89 UART4_CLK, 90 UART5_CLK, 91 UART6_CLK, 92 UART7_CLK, 93 UART8_CLK, 94 UART9_CLK, 95 96 /* General purpose timer modules */ 97 TIMER1_CLK = 500, 98 TIMER2_CLK, 99 TIMER3_CLK, 100 TIMER4_CLK, 101 TIMER5_CLK, 102 TIMER6_CLK, 103 TIMER7_CLK, 104 TIMER8_CLK, 105 TIMER9_CLK, 106 TIMER10_CLK, 107 TIMER11_CLK, 108 TIMER12_CLK, 109 110 /* McBSP module(s) */ 111 MCBSP1_CLK = 600, 112 MCBSP2_CLK, 113 MCBSP3_CLK, 114 MCBSP4_CLK, 115 MCBSP5_CLK, 116 117 /* General purpose I/O modules */ 118 GPIO1_CLK = 700, 119 GPIO2_CLK, 120 GPIO3_CLK, 121 GPIO4_CLK, 122 GPIO5_CLK, 123 GPIO6_CLK, 124 GPIO7_CLK, 125 126 /* sDMA module */ 127 SDMA_CLK = 800, 128 129 /* CPSW modules */ 130 CPSW_CLK = 1000, 131 132 /* Mentor USB modules */ 133 MUSB0_CLK = 1100, 134 135 /* EDMA module */ 136 EDMA_TPCC_CLK = 1200, 137 EDMA_TPTC0_CLK, 138 EDMA_TPTC1_CLK, 139 EDMA_TPTC2_CLK, 140 141 /* LCD controller module */ 142 LCDC_CLK = 1300, 143 144 /* PWM modules */ 145 PWMSS0_CLK = 1400, 146 PWMSS1_CLK, 147 PWMSS2_CLK, 148 149 /* Mailbox modules */ 150 MAILBOX0_CLK = 1500, 151 152 /* Spinlock modules */ 153 SPINLOCK0_CLK = 1600, 154 155 PRUSS_CLK = 1700, 156 157 TSC_ADC_CLK = 1800, 158 159 /* RTC module */ 160 RTC_CLK = 1900, 161 } clk_ident_t; 162 163 /* 164 * 165 */ 166 typedef enum { 167 SYSCLK_CLK, /* System clock */ 168 EXT_CLK, 169 170 F32KHZ_CLK, /* 32KHz clock */ 171 F48MHZ_CLK, /* 48MHz clock */ 172 F64MHZ_CLK, /* 64MHz clock */ 173 F96MHZ_CLK, /* 96MHz clock */ 174 175 } clk_src_t; 176 177 struct ti_clock_dev { 178 /* The profile of the timer */ 179 clk_ident_t id; 180 181 /* A bunch of callbacks associated with the clock device */ 182 int (*clk_activate)(struct ti_clock_dev *clkdev); 183 int (*clk_deactivate)(struct ti_clock_dev *clkdev); 184 int (*clk_set_source)(struct ti_clock_dev *clkdev, 185 clk_src_t clksrc); 186 int (*clk_accessible)(struct ti_clock_dev *clkdev); 187 int (*clk_set_source_freq)(struct ti_clock_dev *clkdev, 188 unsigned int freq); 189 int (*clk_get_source_freq)(struct ti_clock_dev *clkdev, 190 unsigned int *freq); 191 }; 192 193 int ti_prcm_clk_valid(clk_ident_t clk); 194 int ti_prcm_clk_enable(clk_ident_t clk); 195 int ti_prcm_clk_disable(clk_ident_t clk); 196 int ti_prcm_clk_accessible(clk_ident_t clk); 197 int ti_prcm_clk_disable_autoidle(clk_ident_t clk); 198 int ti_prcm_clk_set_source(clk_ident_t clk, clk_src_t clksrc); 199 int ti_prcm_clk_set_source_freq(clk_ident_t clk, unsigned int freq); 200 int ti_prcm_clk_get_source_freq(clk_ident_t clk, unsigned int *freq); 201 void ti_prcm_reset(void); 202 203 #endif /* _TI_PRCM_H_ */ 204