1 /* 2 * cpu.h 3 * 4 * AM33xx specific header file 5 * 6 * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/ 7 * 8 * This program is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU General Public License as 10 * published by the Free Software Foundation; either version 2 of 11 * the License, or (at your option) any later version. 12 * 13 * This program is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR /PURPOSE. See the 16 * GNU General Public License for more details. 17 */ 18 19 #ifndef _AM33XX_CPU_H 20 #define _AM33XX_CPU_H 21 22 #if !(defined(__KERNEL_STRICT_NAMES) || defined(__ASSEMBLY__)) 23 #include <asm/types.h> 24 #endif /* !(__KERNEL_STRICT_NAMES || __ASSEMBLY__) */ 25 26 #include <asm/arch/hardware.h> 27 28 #define BIT(x) (1 << x) 29 #define CL_BIT(x) (0 << x) 30 31 /* Timer register bits */ 32 #define TCLR_ST BIT(0) /* Start=1 Stop=0 */ 33 #define TCLR_AR BIT(1) /* Auto reload */ 34 #define TCLR_PRE BIT(5) /* Pre-scaler enable */ 35 #define TCLR_PTV_SHIFT (2) /* Pre-scaler shift value */ 36 #define TCLR_PRE_DISABLE CL_BIT(5) /* Pre-scalar disable */ 37 38 /* device type */ 39 #define DEVICE_MASK (BIT(8) | BIT(9) | BIT(10)) 40 #define TST_DEVICE 0x0 41 #define EMU_DEVICE 0x1 42 #define HS_DEVICE 0x2 43 #define GP_DEVICE 0x3 44 45 /* cpu-id for AM33XX family */ 46 #define AM335X 0xB944 47 #define DEVICE_ID 0x44E10600 48 49 /* This gives the status of the boot mode pins on the evm */ 50 #define SYSBOOT_MASK (BIT(0) | BIT(1) | BIT(2)\ 51 | BIT(3) | BIT(4)) 52 53 /* Reset control */ 54 #ifdef CONFIG_AM33XX 55 #define PRM_RSTCTRL 0x44E00F00 56 #endif 57 #define PRM_RSTCTRL_RESET 0x01 58 59 #ifndef __KERNEL_STRICT_NAMES 60 #ifndef __ASSEMBLY__ 61 /* Encapsulating core pll registers */ 62 struct cm_wkuppll { 63 unsigned int wkclkstctrl; /* offset 0x00 */ 64 unsigned int wkctrlclkctrl; /* offset 0x04 */ 65 unsigned int resv1[1]; 66 unsigned int wkl4wkclkctrl; /* offset 0x0c */ 67 unsigned int resv2[4]; 68 unsigned int idlestdpllmpu; /* offset 0x20 */ 69 unsigned int resv3[2]; 70 unsigned int clkseldpllmpu; /* offset 0x2c */ 71 unsigned int resv4[1]; 72 unsigned int idlestdpllddr; /* offset 0x34 */ 73 unsigned int resv5[2]; 74 unsigned int clkseldpllddr; /* offset 0x40 */ 75 unsigned int resv6[4]; 76 unsigned int clkseldplldisp; /* offset 0x54 */ 77 unsigned int resv7[1]; 78 unsigned int idlestdpllcore; /* offset 0x5c */ 79 unsigned int resv8[2]; 80 unsigned int clkseldpllcore; /* offset 0x68 */ 81 unsigned int resv9[1]; 82 unsigned int idlestdpllper; /* offset 0x70 */ 83 unsigned int resv10[3]; 84 unsigned int divm4dpllcore; /* offset 0x80 */ 85 unsigned int divm5dpllcore; /* offset 0x84 */ 86 unsigned int clkmoddpllmpu; /* offset 0x88 */ 87 unsigned int clkmoddpllper; /* offset 0x8c */ 88 unsigned int clkmoddpllcore; /* offset 0x90 */ 89 unsigned int clkmoddpllddr; /* offset 0x94 */ 90 unsigned int clkmoddplldisp; /* offset 0x98 */ 91 unsigned int clkseldpllper; /* offset 0x9c */ 92 unsigned int divm2dpllddr; /* offset 0xA0 */ 93 unsigned int divm2dplldisp; /* offset 0xA4 */ 94 unsigned int divm2dpllmpu; /* offset 0xA8 */ 95 unsigned int divm2dpllper; /* offset 0xAC */ 96 unsigned int resv11[1]; 97 unsigned int wkup_uart0ctrl; /* offset 0xB4 */ 98 unsigned int resv12[8]; 99 unsigned int divm6dpllcore; /* offset 0xD8 */ 100 }; 101 102 /** 103 * Encapsulating peripheral functional clocks 104 * pll registers 105 */ 106 struct cm_perpll { 107 unsigned int l4lsclkstctrl; /* offset 0x00 */ 108 unsigned int l3sclkstctrl; /* offset 0x04 */ 109 unsigned int l4fwclkstctrl; /* offset 0x08 */ 110 unsigned int l3clkstctrl; /* offset 0x0c */ 111 unsigned int resv1; 112 unsigned int cpgmac0clkctrl; /* offset 0x14 */ 113 unsigned int resv2[4]; 114 unsigned int emifclkctrl; /* offset 0x28 */ 115 unsigned int ocmcramclkctrl; /* offset 0x2c */ 116 unsigned int gpmcclkctrl; /* offset 0x30 */ 117 unsigned int resv3[2]; 118 unsigned int mmc0clkctrl; /* offset 0x3C */ 119 unsigned int elmclkctrl; /* offset 0x40 */ 120 unsigned int i2c2clkctrl; /* offset 0x44 */ 121 unsigned int i2c1clkctrl; /* offset 0x48 */ 122 unsigned int spi0clkctrl; /* offset 0x4C */ 123 unsigned int spi1clkctrl; /* offset 0x50 */ 124 unsigned int resv4[3]; 125 unsigned int l4lsclkctrl; /* offset 0x60 */ 126 unsigned int l4fwclkctrl; /* offset 0x64 */ 127 unsigned int resv5[6]; 128 unsigned int timer2clkctrl; /* offset 0x80 */ 129 unsigned int resv6[11]; 130 unsigned int gpio2clkctrl; /* offset 0xB0 */ 131 unsigned int resv7[7]; 132 unsigned int emiffwclkctrl; /* offset 0xD0 */ 133 unsigned int resv8[2]; 134 unsigned int l3instrclkctrl; /* offset 0xDC */ 135 unsigned int l3clkctrl; /* Offset 0xE0 */ 136 unsigned int resv9[14]; 137 unsigned int l4hsclkstctrl; /* offset 0x11C */ 138 unsigned int l4hsclkctrl; /* offset 0x120 */ 139 unsigned int resv10[8]; 140 unsigned int cpswclkctrl; /* offset 0x144 */ 141 }; 142 143 /* Encapsulating Display pll registers */ 144 struct cm_dpll { 145 unsigned int resv1[2]; 146 unsigned int clktimer2clk; /* offset 0x08 */ 147 }; 148 149 /* Watchdog timer registers */ 150 struct wd_timer { 151 unsigned int resv1[4]; 152 unsigned int wdtwdsc; /* offset 0x010 */ 153 unsigned int wdtwdst; /* offset 0x014 */ 154 unsigned int wdtwisr; /* offset 0x018 */ 155 unsigned int wdtwier; /* offset 0x01C */ 156 unsigned int wdtwwer; /* offset 0x020 */ 157 unsigned int wdtwclr; /* offset 0x024 */ 158 unsigned int wdtwcrr; /* offset 0x028 */ 159 unsigned int wdtwldr; /* offset 0x02C */ 160 unsigned int wdtwtgr; /* offset 0x030 */ 161 unsigned int wdtwwps; /* offset 0x034 */ 162 unsigned int resv2[3]; 163 unsigned int wdtwdly; /* offset 0x044 */ 164 unsigned int wdtwspr; /* offset 0x048 */ 165 unsigned int resv3[1]; 166 unsigned int wdtwqeoi; /* offset 0x050 */ 167 unsigned int wdtwqstar; /* offset 0x054 */ 168 unsigned int wdtwqsta; /* offset 0x058 */ 169 unsigned int wdtwqens; /* offset 0x05C */ 170 unsigned int wdtwqenc; /* offset 0x060 */ 171 unsigned int resv4[39]; 172 unsigned int wdt_unfr; /* offset 0x100 */ 173 }; 174 175 /* Timer 32 bit registers */ 176 struct gptimer { 177 unsigned int tidr; /* offset 0x00 */ 178 unsigned char res1[12]; 179 unsigned int tiocp_cfg; /* offset 0x10 */ 180 unsigned char res2[12]; 181 unsigned int tier; /* offset 0x20 */ 182 unsigned int tistatr; /* offset 0x24 */ 183 unsigned int tistat; /* offset 0x28 */ 184 unsigned int tisr; /* offset 0x2c */ 185 unsigned int tcicr; /* offset 0x30 */ 186 unsigned int twer; /* offset 0x34 */ 187 unsigned int tclr; /* offset 0x38 */ 188 unsigned int tcrr; /* offset 0x3c */ 189 unsigned int tldr; /* offset 0x40 */ 190 unsigned int ttgr; /* offset 0x44 */ 191 unsigned int twpc; /* offset 0x48 */ 192 unsigned int tmar; /* offset 0x4c */ 193 unsigned int tcar1; /* offset 0x50 */ 194 unsigned int tscir; /* offset 0x54 */ 195 unsigned int tcar2; /* offset 0x58 */ 196 }; 197 198 /* UART Registers */ 199 struct uart_sys { 200 unsigned int resv1[21]; 201 unsigned int uartsyscfg; /* offset 0x54 */ 202 unsigned int uartsyssts; /* offset 0x58 */ 203 }; 204 205 /* VTP Registers */ 206 struct vtp_reg { 207 unsigned int vtp0ctrlreg; 208 }; 209 210 /* Control Status Register */ 211 struct ctrl_stat { 212 unsigned int resv1[16]; 213 unsigned int statusreg; /* ofset 0x40 */ 214 }; 215 216 void init_timer(void); 217 #endif /* __ASSEMBLY__ */ 218 #endif /* __KERNEL_STRICT_NAMES */ 219 220 #endif /* _AM33XX_CPU_H */ 221