1 /* 2 * (C) Copyright 2004-2011 3 * Texas Instruments, <www.ti.com> 4 * 5 * Author : 6 * Manikandan Pillai <mani.pillai@ti.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 <netdev.h> 16 #include <asm/io.h> 17 #include <asm/arch/mem.h> 18 #include <asm/arch/mux.h> 19 #include <asm/arch/sys_proto.h> 20 #include <asm/arch/mmc_host_def.h> 21 #include <asm/gpio.h> 22 #include <i2c.h> 23 #include <twl4030.h> 24 #include <asm/mach-types.h> 25 #include <linux/mtd/nand.h> 26 #include "evm.h" 27 28 #define OMAP3EVM_GPIO_ETH_RST_GEN1 64 29 #define OMAP3EVM_GPIO_ETH_RST_GEN2 7 30 31 DECLARE_GLOBAL_DATA_PTR; 32 33 static u32 omap3_evm_version; 34 35 u32 get_omap3_evm_rev(void) 36 { 37 return omap3_evm_version; 38 } 39 40 static void omap3_evm_get_revision(void) 41 { 42 #if defined(CONFIG_CMD_NET) 43 /* 44 * Board revision can be ascertained only by identifying 45 * the Ethernet chipset. 46 */ 47 unsigned int smsc_id; 48 49 /* Ethernet PHY ID is stored at ID_REV register */ 50 smsc_id = readl(CONFIG_SMC911X_BASE + 0x50) & 0xFFFF0000; 51 printf("Read back SMSC id 0x%x\n", smsc_id); 52 53 switch (smsc_id) { 54 /* SMSC9115 chipset */ 55 case 0x01150000: 56 omap3_evm_version = OMAP3EVM_BOARD_GEN_1; 57 break; 58 /* SMSC 9220 chipset */ 59 case 0x92200000: 60 default: 61 omap3_evm_version = OMAP3EVM_BOARD_GEN_2; 62 } 63 #else 64 #if defined(CONFIG_STATIC_BOARD_REV) 65 /* 66 * Look for static defintion of the board revision 67 */ 68 omap3_evm_version = CONFIG_STATIC_BOARD_REV; 69 #else 70 /* 71 * Fallback to the default above. 72 */ 73 omap3_evm_version = OMAP3EVM_BOARD_GEN_2; 74 #endif 75 #endif /* CONFIG_CMD_NET */ 76 } 77 78 #ifdef CONFIG_USB_OMAP3 79 /* 80 * MUSB port on OMAP3EVM Rev >= E requires extvbus programming. 81 */ 82 u8 omap3_evm_need_extvbus(void) 83 { 84 u8 retval = 0; 85 86 if (get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2) 87 retval = 1; 88 89 return retval; 90 } 91 #endif 92 93 /* 94 * Routine: board_init 95 * Description: Early hardware init. 96 */ 97 int board_init(void) 98 { 99 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */ 100 /* board id for Linux */ 101 gd->bd->bi_arch_number = MACH_TYPE_OMAP3EVM; 102 /* boot param addr */ 103 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100); 104 105 return 0; 106 } 107 108 #ifdef CONFIG_SPL_BUILD 109 /* 110 * Routine: get_board_mem_timings 111 * Description: If we use SPL then there is no x-loader nor config header 112 * so we have to setup the DDR timings ourself on the first bank. This 113 * provides the timing values back to the function that configures 114 * the memory. 115 */ 116 void get_board_mem_timings(struct board_sdrc_timings *timings) 117 { 118 int pop_mfr, pop_id; 119 120 /* 121 * We need to identify what PoP memory is on the board so that 122 * we know what timings to use. To map the ID values please see 123 * nand_ids.c 124 */ 125 identify_nand_chip(&pop_mfr, &pop_id); 126 127 if (pop_mfr == NAND_MFR_HYNIX && pop_id == 0xbc) { 128 /* 256MB DDR */ 129 timings->mcfg = HYNIX_V_MCFG_200(256 << 20); 130 timings->ctrla = HYNIX_V_ACTIMA_200; 131 timings->ctrlb = HYNIX_V_ACTIMB_200; 132 } else { 133 /* 128MB DDR */ 134 timings->mcfg = MICRON_V_MCFG_165(128 << 20); 135 timings->ctrla = MICRON_V_ACTIMA_165; 136 timings->ctrlb = MICRON_V_ACTIMB_165; 137 } 138 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 139 timings->mr = MICRON_V_MR_165; 140 } 141 #endif 142 143 /* 144 * Routine: misc_init_r 145 * Description: Init ethernet (done here so udelay works) 146 */ 147 int misc_init_r(void) 148 { 149 150 #ifdef CONFIG_SYS_I2C_OMAP34XX 151 i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE); 152 #endif 153 154 #if defined(CONFIG_CMD_NET) 155 setup_net_chip(); 156 #endif 157 omap3_evm_get_revision(); 158 159 #if defined(CONFIG_CMD_NET) 160 reset_net_chip(); 161 #endif 162 omap_die_id_display(); 163 164 return 0; 165 } 166 167 /* 168 * Routine: set_muxconf_regs 169 * Description: Setting up the configuration Mux registers specific to the 170 * hardware. Many pins need to be moved from protect to primary 171 * mode. 172 */ 173 void set_muxconf_regs(void) 174 { 175 MUX_EVM(); 176 } 177 178 #ifdef CONFIG_CMD_NET 179 /* 180 * Routine: setup_net_chip 181 * Description: Setting up the configuration GPMC registers specific to the 182 * Ethernet hardware. 183 */ 184 static void setup_net_chip(void) 185 { 186 struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE; 187 188 /* Configure GPMC registers */ 189 writel(NET_GPMC_CONFIG1, &gpmc_cfg->cs[5].config1); 190 writel(NET_GPMC_CONFIG2, &gpmc_cfg->cs[5].config2); 191 writel(NET_GPMC_CONFIG3, &gpmc_cfg->cs[5].config3); 192 writel(NET_GPMC_CONFIG4, &gpmc_cfg->cs[5].config4); 193 writel(NET_GPMC_CONFIG5, &gpmc_cfg->cs[5].config5); 194 writel(NET_GPMC_CONFIG6, &gpmc_cfg->cs[5].config6); 195 writel(NET_GPMC_CONFIG7, &gpmc_cfg->cs[5].config7); 196 197 /* Enable off mode for NWE in PADCONF_GPMC_NWE register */ 198 writew(readw(&ctrl_base ->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe); 199 /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */ 200 writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe); 201 /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */ 202 writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00, 203 &ctrl_base->gpmc_nadv_ale); 204 } 205 206 /** 207 * Reset the ethernet chip. 208 */ 209 static void reset_net_chip(void) 210 { 211 int ret; 212 int rst_gpio; 213 214 if (get_omap3_evm_rev() == OMAP3EVM_BOARD_GEN_1) { 215 rst_gpio = OMAP3EVM_GPIO_ETH_RST_GEN1; 216 } else { 217 rst_gpio = OMAP3EVM_GPIO_ETH_RST_GEN2; 218 } 219 220 ret = gpio_request(rst_gpio, ""); 221 if (ret < 0) { 222 printf("Unable to get GPIO %d\n", rst_gpio); 223 return ; 224 } 225 226 /* Configure as output */ 227 gpio_direction_output(rst_gpio, 0); 228 229 /* Send a pulse on the GPIO pin */ 230 gpio_set_value(rst_gpio, 1); 231 udelay(1); 232 gpio_set_value(rst_gpio, 0); 233 udelay(1); 234 gpio_set_value(rst_gpio, 1); 235 } 236 237 int board_eth_init(bd_t *bis) 238 { 239 int rc = 0; 240 #ifdef CONFIG_SMC911X 241 #define STR_ENV_ETHADDR "ethaddr" 242 243 struct eth_device *dev; 244 uchar eth_addr[6]; 245 246 rc = smc911x_initialize(0, CONFIG_SMC911X_BASE); 247 248 if (!eth_getenv_enetaddr(STR_ENV_ETHADDR, eth_addr)) { 249 dev = eth_get_dev_by_index(0); 250 if (dev) { 251 eth_setenv_enetaddr(STR_ENV_ETHADDR, dev->enetaddr); 252 } else { 253 printf("omap3evm: Couldn't get eth device\n"); 254 rc = -1; 255 } 256 } 257 #endif 258 return rc; 259 } 260 #endif /* CONFIG_CMD_NET */ 261 262 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD) 263 int board_mmc_init(bd_t *bis) 264 { 265 return omap_mmc_init(0, 0, 0, -1, -1); 266 } 267 #endif 268 269 #if defined(CONFIG_GENERIC_MMC) 270 void board_mmc_power_init(void) 271 { 272 twl4030_power_mmc_init(0); 273 } 274 #endif 275