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/mux.h> 36 #include <asm/arch/mem.h> 37 #include <asm/arch/sys_proto.h> 38 #include <asm/arch/gpio.h> 39 #include <asm/mach-types.h> 40 #include "overo.h" 41 42 #if defined(CONFIG_CMD_NET) 43 static void setup_net_chip(void); 44 #endif 45 46 /* GPMC definitions for LAN9221 chips on Tobi expansion boards */ 47 static const u32 gpmc_lan_config[] = { 48 NET_LAN9221_GPMC_CONFIG1, 49 NET_LAN9221_GPMC_CONFIG2, 50 NET_LAN9221_GPMC_CONFIG3, 51 NET_LAN9221_GPMC_CONFIG4, 52 NET_LAN9221_GPMC_CONFIG5, 53 NET_LAN9221_GPMC_CONFIG6, 54 /*CONFIG7- computed as params */ 55 }; 56 57 /* 58 * Routine: board_init 59 * Description: Early hardware init. 60 */ 61 int board_init(void) 62 { 63 DECLARE_GLOBAL_DATA_PTR; 64 65 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */ 66 /* board id for Linux */ 67 gd->bd->bi_arch_number = MACH_TYPE_OVERO; 68 /* boot param addr */ 69 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100); 70 71 return 0; 72 } 73 74 /* 75 * Routine: get_board_revision 76 * Description: Returns the board revision 77 */ 78 int get_board_revision(void) 79 { 80 int revision; 81 82 if (!omap_request_gpio(112) && 83 !omap_request_gpio(113) && 84 !omap_request_gpio(115)) { 85 86 omap_set_gpio_direction(112, 1); 87 omap_set_gpio_direction(113, 1); 88 omap_set_gpio_direction(115, 1); 89 90 revision = omap_get_gpio_datain(115) << 2 | 91 omap_get_gpio_datain(113) << 1 | 92 omap_get_gpio_datain(112); 93 94 omap_free_gpio(112); 95 omap_free_gpio(113); 96 omap_free_gpio(115); 97 } else { 98 printf("Error: unable to acquire board revision GPIOs\n"); 99 revision = -1; 100 } 101 102 return revision; 103 } 104 105 /* 106 * Routine: get_sdio2_config 107 * Description: Return information about the wifi module connection 108 * Returns 0 if the module connects though a level translator 109 * Returns 1 if the module connects directly 110 */ 111 int get_sdio2_config(void) 112 { 113 int sdio_direct; 114 115 if (!omap_request_gpio(130) && !omap_request_gpio(139)) { 116 117 omap_set_gpio_direction(130, 0); 118 omap_set_gpio_direction(139, 1); 119 120 sdio_direct = 1; 121 omap_set_gpio_dataout(130, 0); 122 if (omap_get_gpio_datain(139) == 0) { 123 omap_set_gpio_dataout(130, 1); 124 if (omap_get_gpio_datain(139) == 1) 125 sdio_direct = 0; 126 } 127 128 omap_free_gpio(130); 129 omap_free_gpio(139); 130 } else { 131 printf("Error: unable to acquire sdio2 clk GPIOs\n"); 132 sdio_direct = -1; 133 } 134 135 return sdio_direct; 136 } 137 138 /* 139 * Routine: misc_init_r 140 * Description: Configure board specific parts 141 */ 142 int misc_init_r(void) 143 { 144 twl4030_power_init(); 145 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON); 146 147 #if defined(CONFIG_CMD_NET) 148 setup_net_chip(); 149 #endif 150 151 printf("Board revision: %d\n", get_board_revision()); 152 153 switch (get_sdio2_config()) { 154 case 0: 155 printf("Tranceiver detected on mmc2\n"); 156 MUX_OVERO_SDIO2_TRANSCEIVER(); 157 break; 158 case 1: 159 printf("Direct connection on mmc2\n"); 160 MUX_OVERO_SDIO2_DIRECT(); 161 break; 162 default: 163 printf("Unable to detect mmc2 connection type\n"); 164 } 165 166 dieid_num_r(); 167 168 return 0; 169 } 170 171 /* 172 * Routine: set_muxconf_regs 173 * Description: Setting up the configuration Mux registers specific to the 174 * hardware. Many pins need to be moved from protect to primary 175 * mode. 176 */ 177 void set_muxconf_regs(void) 178 { 179 MUX_OVERO(); 180 } 181 182 #if defined(CONFIG_CMD_NET) 183 /* 184 * Routine: setup_net_chip 185 * Description: Setting up the configuration GPMC registers specific to the 186 * Ethernet hardware. 187 */ 188 static void setup_net_chip(void) 189 { 190 struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE; 191 192 /* first lan chip */ 193 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[5], 0x2C000000, 194 GPMC_SIZE_16M); 195 196 /* second lan chip */ 197 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[4], 0x2B000000, 198 GPMC_SIZE_16M); 199 200 /* Enable off mode for NWE in PADCONF_GPMC_NWE register */ 201 writew(readw(&ctrl_base ->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe); 202 /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */ 203 writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe); 204 /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */ 205 writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00, 206 &ctrl_base->gpmc_nadv_ale); 207 208 /* Make GPIO 64 as output pin and send a magic pulse through it */ 209 if (!omap_request_gpio(64)) { 210 omap_set_gpio_direction(64, 0); 211 omap_set_gpio_dataout(64, 1); 212 udelay(1); 213 omap_set_gpio_dataout(64, 0); 214 udelay(1); 215 omap_set_gpio_dataout(64, 1); 216 } 217 } 218 #endif 219 220 int board_eth_init(bd_t *bis) 221 { 222 int rc = 0; 223 #ifdef CONFIG_SMC911X 224 rc = smc911x_initialize(0, CONFIG_SMC911X_BASE); 225 #endif 226 return rc; 227 } 228