1 /* 2 * (C) Copyright 2011 3 * Logic Product Development <www.logicpd.com> 4 * 5 * Author : 6 * Peter Barada <peter.barada@logicpd.com> 7 * 8 * Derived from Beagle Board and 3430 SDP code by 9 * Richard Woodruff <r-woodruff2@ti.com> 10 * Syed Mohammed Khasim <khasim@ti.com> 11 * 12 * SPDX-License-Identifier: GPL-2.0+ 13 */ 14 #include <common.h> 15 #include <dm.h> 16 #include <ns16550.h> 17 #include <netdev.h> 18 #include <flash.h> 19 #include <nand.h> 20 #include <i2c.h> 21 #include <twl4030.h> 22 #include <asm/io.h> 23 #include <asm/arch/mmc_host_def.h> 24 #include <asm/arch/mux.h> 25 #include <asm/arch/mem.h> 26 #include <asm/arch/sys_proto.h> 27 #include <asm/gpio.h> 28 #include <asm/mach-types.h> 29 #include "omap3logic.h" 30 31 DECLARE_GLOBAL_DATA_PTR; 32 33 /* 34 * two dimensional array of strucures containining board name and Linux 35 * machine IDs; row it selected based on CPU column is slected based 36 * on hsusb0_data5 pin having a pulldown resistor 37 */ 38 39 static const struct ns16550_platdata omap3logic_serial = { 40 OMAP34XX_UART1, 41 2, 42 V_NS16550_CLK 43 }; 44 45 U_BOOT_DEVICE(omap3logic_uart) = { 46 "ns16550_serial", 47 &omap3logic_serial 48 }; 49 50 static struct board_id { 51 char *name; 52 int machine_id; 53 } boards[2][2] = { 54 { 55 { 56 .name = "OMAP35xx SOM LV", 57 .machine_id = MACH_TYPE_OMAP3530_LV_SOM, 58 }, 59 { 60 .name = "OMAP35xx Torpedo", 61 .machine_id = MACH_TYPE_OMAP3_TORPEDO, 62 }, 63 }, 64 { 65 { 66 .name = "DM37xx SOM LV", 67 .machine_id = MACH_TYPE_DM3730_SOM_LV, 68 }, 69 { 70 .name = "DM37xx Torpedo", 71 .machine_id = MACH_TYPE_DM3730_TORPEDO, 72 }, 73 }, 74 }; 75 76 /* 77 * BOARD_ID_GPIO - GPIO of pin with optional pulldown resistor on SOM LV 78 */ 79 #define BOARD_ID_GPIO 189 /* hsusb0_data5 pin */ 80 81 /* 82 * Routine: board_init 83 * Description: Early hardware init. 84 */ 85 int board_init(void) 86 { 87 struct board_id *board; 88 unsigned int val; 89 90 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */ 91 92 /* boot param addr */ 93 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100); 94 95 /* 96 * To identify between a SOM LV and Torpedo module, 97 * a pulldown resistor is on hsusb0_data5 for the SOM LV module. 98 * Drive the pin (and let it soak), then read it back. 99 * If the pin is still high its a Torpedo. If low its a SOM LV 100 */ 101 102 /* Mux hsusb0_data5 as a GPIO */ 103 MUX_VAL(CP(HSUSB0_DATA5), (IEN | PTD | DIS | M4)); 104 105 if (gpio_request(BOARD_ID_GPIO, "husb0_data5.gpio_189") == 0) { 106 107 /* 108 * Drive BOARD_ID_GPIO - the pulldown resistor on the SOM LV 109 * will drain the voltage. 110 */ 111 gpio_direction_output(BOARD_ID_GPIO, 0); 112 gpio_set_value(BOARD_ID_GPIO, 1); 113 114 /* Let it soak for a bit */ 115 sdelay(0x100); 116 117 /* 118 * Read state of BOARD_ID_GPIO as an input and if its set. 119 * If so the board is a Torpedo 120 */ 121 gpio_direction_input(BOARD_ID_GPIO); 122 val = gpio_get_value(BOARD_ID_GPIO); 123 gpio_free(BOARD_ID_GPIO); 124 125 board = &boards[!!(get_cpu_family() == CPU_OMAP36XX)][!!val]; 126 printf("Board: %s\n", board->name); 127 128 /* Set the machine_id passed to Linux */ 129 gd->bd->bi_arch_number = board->machine_id; 130 } 131 132 /* restore hsusb0_data5 pin as hsusb0_data5 */ 133 MUX_VAL(CP(HSUSB0_DATA5), (IEN | PTD | DIS | M0)); 134 135 return 0; 136 } 137 138 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD) 139 int board_mmc_init(bd_t *bis) 140 { 141 return omap_mmc_init(0, 0, 0, -1, -1); 142 } 143 #endif 144 145 #if defined(CONFIG_GENERIC_MMC) 146 void board_mmc_power_init(void) 147 { 148 twl4030_power_mmc_init(0); 149 } 150 #endif 151 152 #ifdef CONFIG_SMC911X 153 /* GPMC CS1 settings for Logic SOM LV/Torpedo LAN92xx Ethernet chip */ 154 static const u32 gpmc_lan92xx_config[] = { 155 NET_LAN92XX_GPMC_CONFIG1, 156 NET_LAN92XX_GPMC_CONFIG2, 157 NET_LAN92XX_GPMC_CONFIG3, 158 NET_LAN92XX_GPMC_CONFIG4, 159 NET_LAN92XX_GPMC_CONFIG5, 160 NET_LAN92XX_GPMC_CONFIG6, 161 }; 162 163 int board_eth_init(bd_t *bis) 164 { 165 enable_gpmc_cs_config(gpmc_lan92xx_config, &gpmc_cfg->cs[1], 166 CONFIG_SMC911X_BASE, GPMC_SIZE_16M); 167 168 return smc911x_initialize(0, CONFIG_SMC911X_BASE); 169 } 170 #endif 171 172 /* 173 * IEN - Input Enable 174 * IDIS - Input Disable 175 * PTD - Pull type Down 176 * PTU - Pull type Up 177 * DIS - Pull type selection is inactive 178 * EN - Pull type selection is active 179 * M0 - Mode 0 180 * The commented string gives the final mux configuration for that pin 181 */ 182 183 /* 184 * Routine: set_muxconf_regs 185 * Description: Setting up the configuration Mux registers specific to the 186 * hardware. Many pins need to be moved from protect to primary 187 * mode. 188 */ 189 void set_muxconf_regs(void) 190 { 191 /*GPMC*/ 192 MUX_VAL(CP(GPMC_A1), (IDIS | PTU | EN | M0)); 193 MUX_VAL(CP(GPMC_A2), (IDIS | PTU | EN | M0)); 194 MUX_VAL(CP(GPMC_A3), (IDIS | PTU | EN | M0)); 195 MUX_VAL(CP(GPMC_A4), (IDIS | PTU | EN | M0)); 196 MUX_VAL(CP(GPMC_A5), (IDIS | PTU | EN | M0)); 197 MUX_VAL(CP(GPMC_A6), (IDIS | PTU | EN | M0)); 198 MUX_VAL(CP(GPMC_A7), (IDIS | PTU | EN | M0)); 199 MUX_VAL(CP(GPMC_A8), (IDIS | PTU | EN | M0)); 200 MUX_VAL(CP(GPMC_A9), (IDIS | PTU | EN | M0)); 201 MUX_VAL(CP(GPMC_A10), (IDIS | PTU | EN | M0)); 202 MUX_VAL(CP(GPMC_D0), (IEN | PTU | EN | M0)); 203 MUX_VAL(CP(GPMC_D1), (IEN | PTU | EN | M0)); 204 MUX_VAL(CP(GPMC_D2), (IEN | PTU | EN | M0)); 205 MUX_VAL(CP(GPMC_D3), (IEN | PTU | EN | M0)); 206 MUX_VAL(CP(GPMC_D4), (IEN | PTU | EN | M0)); 207 MUX_VAL(CP(GPMC_D5), (IEN | PTU | EN | M0)); 208 MUX_VAL(CP(GPMC_D6), (IEN | PTU | EN | M0)); 209 MUX_VAL(CP(GPMC_D7), (IEN | PTU | EN | M0)); 210 MUX_VAL(CP(GPMC_D8), (IEN | PTU | EN | M0)); 211 MUX_VAL(CP(GPMC_D9), (IEN | PTU | EN | M0)); 212 MUX_VAL(CP(GPMC_D10), (IEN | PTU | EN | M0)); 213 MUX_VAL(CP(GPMC_D11), (IEN | PTU | EN | M0)); 214 MUX_VAL(CP(GPMC_D12), (IEN | PTU | EN | M0)); 215 MUX_VAL(CP(GPMC_D13), (IEN | PTU | EN | M0)); 216 MUX_VAL(CP(GPMC_D14), (IEN | PTU | EN | M0)); 217 MUX_VAL(CP(GPMC_D15), (IEN | PTU | EN | M0)); 218 MUX_VAL(CP(GPMC_NCS0), (IDIS | PTU | EN | M0)); 219 MUX_VAL(CP(GPMC_NCS1), (IDIS | PTU | EN | M0)); 220 MUX_VAL(CP(GPMC_NCS2), (IDIS | PTU | EN | M0)); 221 MUX_VAL(CP(GPMC_NCS3), (IDIS | PTD | DIS | M0)); 222 MUX_VAL(CP(GPMC_NCS5), (IDIS | PTU | DIS | M4)); 223 MUX_VAL(CP(GPMC_NCS7), (IDIS | PTD | DIS | M1)); /*GPMC_IO_DIR*/ 224 MUX_VAL(CP(GPMC_NBE0_CLE), (IDIS | PTU | EN | M0)); 225 MUX_VAL(CP(GPMC_WAIT1), (IEN | PTU | EN | M0)); 226 227 /*Expansion card */ 228 MUX_VAL(CP(MMC1_CLK), (IDIS | PTU | EN | M0)); 229 MUX_VAL(CP(MMC1_CMD), (IEN | PTU | EN | M0)); 230 MUX_VAL(CP(MMC1_DAT0), (IEN | PTU | EN | M0)); 231 MUX_VAL(CP(MMC1_DAT1), (IEN | PTU | EN | M0)); 232 MUX_VAL(CP(MMC1_DAT2), (IEN | PTU | EN | M0)); 233 MUX_VAL(CP(MMC1_DAT3), (IEN | PTU | EN | M0)); 234 235 /* Serial Console */ 236 MUX_VAL(CP(UART1_TX), (IDIS | PTD | DIS | M0)); 237 MUX_VAL(CP(UART1_RTS), (IDIS | PTD | DIS | M0)); 238 MUX_VAL(CP(UART1_CTS), (IEN | PTU | DIS | M0)); 239 MUX_VAL(CP(UART1_RX), (IEN | PTD | DIS | M0)); 240 241 /* I2C */ 242 MUX_VAL(CP(I2C2_SCL), (IEN | PTU | EN | M0)); 243 MUX_VAL(CP(I2C2_SDA), (IEN | PTU | EN | M0)); 244 MUX_VAL(CP(I2C3_SCL), (IEN | PTU | EN | M0)); 245 MUX_VAL(CP(I2C3_SDA), (IEN | PTU | EN | M0)); 246 247 MUX_VAL(CP(HDQ_SIO), (IEN | PTU | EN | M0)); 248 249 /*Control and debug */ 250 MUX_VAL(CP(SYS_NIRQ), (IEN | PTU | EN | M0)); 251 MUX_VAL(CP(SYS_OFF_MODE), (IEN | PTD | DIS | M0)); 252 MUX_VAL(CP(SYS_CLKOUT1), (IEN | PTD | DIS | M0)); 253 MUX_VAL(CP(SYS_CLKOUT2), (IEN | PTU | EN | M0)); 254 MUX_VAL(CP(JTAG_NTRST), (IEN | PTD | DIS | M0)); 255 MUX_VAL(CP(SDRC_CKE0), (IDIS | PTU | EN | M0)); 256 } 257