1 /* 2 * Maintainer : Steve Sakoman <steve@sakoman.com> 3 * 4 * Derived from Beagle Board, 3430 SDP, and OMAP3EVM code by 5 * Richard Woodruff <r-woodruff2@ti.com> 6 * Syed Mohammed Khasim <khasim@ti.com> 7 * Sunil Kumar <sunilsaini05@gmail.com> 8 * Shashi Ranjan <shashiranjanmca05@gmail.com> 9 * 10 * (C) Copyright 2004-2008 11 * Texas Instruments, <www.ti.com> 12 * 13 * See file CREDITS for list of people who contributed to this 14 * project. 15 * 16 * This program is free software; you can redistribute it and/or 17 * modify it under the terms of the GNU General Public License as 18 * published by the Free Software Foundation; either version 2 of 19 * the License, or (at your option) any later version. 20 * 21 * This program is distributed in the hope that it will be useful, 22 * but WITHOUT ANY WARRANTY; without even the implied warranty of 23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 24 * GNU General Public License for more details. 25 * 26 * You should have received a copy of the GNU General Public License 27 * along with this program; if not, write to the Free Software 28 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 29 * MA 02111-1307 USA 30 */ 31 #include <common.h> 32 #include <netdev.h> 33 #include <twl4030.h> 34 #include <asm/io.h> 35 #include <asm/arch/mmc_host_def.h> 36 #include <asm/arch/mux.h> 37 #include <asm/arch/mem.h> 38 #include <asm/arch/sys_proto.h> 39 #include <asm/arch/gpio.h> 40 #include <asm/mach-types.h> 41 #include "overo.h" 42 43 #if defined(CONFIG_CMD_NET) 44 static void setup_net_chip(void); 45 #endif 46 47 /* GPMC definitions for LAN9221 chips on Tobi expansion boards */ 48 static const u32 gpmc_lan_config[] = { 49 NET_LAN9221_GPMC_CONFIG1, 50 NET_LAN9221_GPMC_CONFIG2, 51 NET_LAN9221_GPMC_CONFIG3, 52 NET_LAN9221_GPMC_CONFIG4, 53 NET_LAN9221_GPMC_CONFIG5, 54 NET_LAN9221_GPMC_CONFIG6, 55 /*CONFIG7- computed as params */ 56 }; 57 58 /* 59 * Routine: board_init 60 * Description: Early hardware init. 61 */ 62 int board_init(void) 63 { 64 DECLARE_GLOBAL_DATA_PTR; 65 66 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */ 67 /* board id for Linux */ 68 gd->bd->bi_arch_number = MACH_TYPE_OVERO; 69 /* boot param addr */ 70 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100); 71 72 return 0; 73 } 74 75 /* 76 * Routine: get_board_revision 77 * Description: Returns the board revision 78 */ 79 int get_board_revision(void) 80 { 81 int revision; 82 83 if (!omap_request_gpio(112) && 84 !omap_request_gpio(113) && 85 !omap_request_gpio(115)) { 86 87 omap_set_gpio_direction(112, 1); 88 omap_set_gpio_direction(113, 1); 89 omap_set_gpio_direction(115, 1); 90 91 revision = omap_get_gpio_datain(115) << 2 | 92 omap_get_gpio_datain(113) << 1 | 93 omap_get_gpio_datain(112); 94 95 omap_free_gpio(112); 96 omap_free_gpio(113); 97 omap_free_gpio(115); 98 } else { 99 printf("Error: unable to acquire board revision GPIOs\n"); 100 revision = -1; 101 } 102 103 return revision; 104 } 105 106 /* 107 * Routine: get_sdio2_config 108 * Description: Return information about the wifi module connection 109 * Returns 0 if the module connects though a level translator 110 * Returns 1 if the module connects directly 111 */ 112 int get_sdio2_config(void) 113 { 114 int sdio_direct; 115 116 if (!omap_request_gpio(130) && !omap_request_gpio(139)) { 117 118 omap_set_gpio_direction(130, 0); 119 omap_set_gpio_direction(139, 1); 120 121 sdio_direct = 1; 122 omap_set_gpio_dataout(130, 0); 123 if (omap_get_gpio_datain(139) == 0) { 124 omap_set_gpio_dataout(130, 1); 125 if (omap_get_gpio_datain(139) == 1) 126 sdio_direct = 0; 127 } 128 129 omap_free_gpio(130); 130 omap_free_gpio(139); 131 } else { 132 printf("Error: unable to acquire sdio2 clk GPIOs\n"); 133 sdio_direct = -1; 134 } 135 136 return sdio_direct; 137 } 138 139 /* 140 * Routine: misc_init_r 141 * Description: Configure board specific parts 142 */ 143 int misc_init_r(void) 144 { 145 twl4030_power_init(); 146 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON); 147 148 #if defined(CONFIG_CMD_NET) 149 setup_net_chip(); 150 #endif 151 152 printf("Board revision: %d\n", get_board_revision()); 153 154 switch (get_sdio2_config()) { 155 case 0: 156 printf("Tranceiver detected on mmc2\n"); 157 MUX_OVERO_SDIO2_TRANSCEIVER(); 158 break; 159 case 1: 160 printf("Direct connection on mmc2\n"); 161 MUX_OVERO_SDIO2_DIRECT(); 162 break; 163 default: 164 printf("Unable to detect mmc2 connection type\n"); 165 } 166 167 dieid_num_r(); 168 169 return 0; 170 } 171 172 /* 173 * Routine: set_muxconf_regs 174 * Description: Setting up the configuration Mux registers specific to the 175 * hardware. Many pins need to be moved from protect to primary 176 * mode. 177 */ 178 void set_muxconf_regs(void) 179 { 180 MUX_OVERO(); 181 } 182 183 #if defined(CONFIG_CMD_NET) 184 /* 185 * Routine: setup_net_chip 186 * Description: Setting up the configuration GPMC registers specific to the 187 * Ethernet hardware. 188 */ 189 static void setup_net_chip(void) 190 { 191 struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE; 192 193 /* first lan chip */ 194 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[5], 0x2C000000, 195 GPMC_SIZE_16M); 196 197 /* second lan chip */ 198 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[4], 0x2B000000, 199 GPMC_SIZE_16M); 200 201 /* Enable off mode for NWE in PADCONF_GPMC_NWE register */ 202 writew(readw(&ctrl_base ->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe); 203 /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */ 204 writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe); 205 /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */ 206 writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00, 207 &ctrl_base->gpmc_nadv_ale); 208 209 /* Make GPIO 64 as output pin and send a magic pulse through it */ 210 if (!omap_request_gpio(64)) { 211 omap_set_gpio_direction(64, 0); 212 omap_set_gpio_dataout(64, 1); 213 udelay(1); 214 omap_set_gpio_dataout(64, 0); 215 udelay(1); 216 omap_set_gpio_dataout(64, 1); 217 } 218 } 219 #endif 220 221 int board_eth_init(bd_t *bis) 222 { 223 int rc = 0; 224 #ifdef CONFIG_SMC911X 225 rc = smc911x_initialize(0, CONFIG_SMC911X_BASE); 226 #endif 227 return rc; 228 } 229 230 #ifdef CONFIG_GENERIC_MMC 231 int board_mmc_init(bd_t *bis) 232 { 233 omap_mmc_init(0); 234 return 0; 235 } 236 #endif 237