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 <asm/mach-types.h> 24 #include <linux/mtd/nand.h> 25 #include "evm.h" 26 27 #define OMAP3EVM_GPIO_ETH_RST_GEN1 64 28 #define OMAP3EVM_GPIO_ETH_RST_GEN2 7 29 30 DECLARE_GLOBAL_DATA_PTR; 31 32 static u32 omap3_evm_version; 33 34 u32 get_omap3_evm_rev(void) 35 { 36 return omap3_evm_version; 37 } 38 39 static void omap3_evm_get_revision(void) 40 { 41 #if defined(CONFIG_CMD_NET) 42 /* 43 * Board revision can be ascertained only by identifying 44 * the Ethernet chipset. 45 */ 46 unsigned int smsc_id; 47 48 /* Ethernet PHY ID is stored at ID_REV register */ 49 smsc_id = readl(CONFIG_SMC911X_BASE + 0x50) & 0xFFFF0000; 50 printf("Read back SMSC id 0x%x\n", smsc_id); 51 52 switch (smsc_id) { 53 /* SMSC9115 chipset */ 54 case 0x01150000: 55 omap3_evm_version = OMAP3EVM_BOARD_GEN_1; 56 break; 57 /* SMSC 9220 chipset */ 58 case 0x92200000: 59 default: 60 omap3_evm_version = OMAP3EVM_BOARD_GEN_2; 61 } 62 #else 63 #if defined(CONFIG_STATIC_BOARD_REV) 64 /* 65 * Look for static defintion of the board revision 66 */ 67 omap3_evm_version = CONFIG_STATIC_BOARD_REV; 68 #else 69 /* 70 * Fallback to the default above. 71 */ 72 omap3_evm_version = OMAP3EVM_BOARD_GEN_2; 73 #endif 74 #endif /* CONFIG_CMD_NET */ 75 } 76 77 #ifdef CONFIG_USB_OMAP3 78 /* 79 * MUSB port on OMAP3EVM Rev >= E requires extvbus programming. 80 */ 81 u8 omap3_evm_need_extvbus(void) 82 { 83 u8 retval = 0; 84 85 if (get_omap3_evm_rev() >= OMAP3EVM_BOARD_GEN_2) 86 retval = 1; 87 88 return retval; 89 } 90 #endif 91 92 /* 93 * Routine: board_init 94 * Description: Early hardware init. 95 */ 96 int board_init(void) 97 { 98 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */ 99 /* board id for Linux */ 100 gd->bd->bi_arch_number = MACH_TYPE_OMAP3EVM; 101 /* boot param addr */ 102 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100); 103 104 return 0; 105 } 106 107 #ifdef CONFIG_SPL_BUILD 108 /* 109 * Routine: get_board_mem_timings 110 * Description: If we use SPL then there is no x-loader nor config header 111 * so we have to setup the DDR timings ourself on the first bank. This 112 * provides the timing values back to the function that configures 113 * the memory. 114 */ 115 void get_board_mem_timings(struct board_sdrc_timings *timings) 116 { 117 int pop_mfr, pop_id; 118 119 /* 120 * We need to identify what PoP memory is on the board so that 121 * we know what timings to use. To map the ID values please see 122 * nand_ids.c 123 */ 124 identify_nand_chip(&pop_mfr, &pop_id); 125 126 if (pop_mfr == NAND_MFR_HYNIX && pop_id == 0xbc) { 127 /* 256MB DDR */ 128 timings->mcfg = HYNIX_V_MCFG_200(256 << 20); 129 timings->ctrla = HYNIX_V_ACTIMA_200; 130 timings->ctrlb = HYNIX_V_ACTIMB_200; 131 } else { 132 /* 128MB DDR */ 133 timings->mcfg = MICRON_V_MCFG_165(128 << 20); 134 timings->ctrla = MICRON_V_ACTIMA_165; 135 timings->ctrlb = MICRON_V_ACTIMB_165; 136 } 137 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz; 138 timings->mr = MICRON_V_MR_165; 139 } 140 #endif 141 142 /* 143 * Routine: misc_init_r 144 * Description: Init ethernet (done here so udelay works) 145 */ 146 int misc_init_r(void) 147 { 148 149 #ifdef CONFIG_DRIVER_OMAP34XX_I2C 150 i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); 151 #endif 152 153 #if defined(CONFIG_CMD_NET) 154 setup_net_chip(); 155 #endif 156 omap3_evm_get_revision(); 157 158 #if defined(CONFIG_CMD_NET) 159 reset_net_chip(); 160 #endif 161 dieid_num_r(); 162 163 return 0; 164 } 165 166 /* 167 * Routine: set_muxconf_regs 168 * Description: Setting up the configuration Mux registers specific to the 169 * hardware. Many pins need to be moved from protect to primary 170 * mode. 171 */ 172 void set_muxconf_regs(void) 173 { 174 MUX_EVM(); 175 } 176 177 #ifdef CONFIG_CMD_NET 178 /* 179 * Routine: setup_net_chip 180 * Description: Setting up the configuration GPMC registers specific to the 181 * Ethernet hardware. 182 */ 183 static void setup_net_chip(void) 184 { 185 struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE; 186 187 /* Configure GPMC registers */ 188 writel(NET_GPMC_CONFIG1, &gpmc_cfg->cs[5].config1); 189 writel(NET_GPMC_CONFIG2, &gpmc_cfg->cs[5].config2); 190 writel(NET_GPMC_CONFIG3, &gpmc_cfg->cs[5].config3); 191 writel(NET_GPMC_CONFIG4, &gpmc_cfg->cs[5].config4); 192 writel(NET_GPMC_CONFIG5, &gpmc_cfg->cs[5].config5); 193 writel(NET_GPMC_CONFIG6, &gpmc_cfg->cs[5].config6); 194 writel(NET_GPMC_CONFIG7, &gpmc_cfg->cs[5].config7); 195 196 /* Enable off mode for NWE in PADCONF_GPMC_NWE register */ 197 writew(readw(&ctrl_base ->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe); 198 /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */ 199 writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe); 200 /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */ 201 writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00, 202 &ctrl_base->gpmc_nadv_ale); 203 } 204 205 /** 206 * Reset the ethernet chip. 207 */ 208 static void reset_net_chip(void) 209 { 210 int ret; 211 int rst_gpio; 212 213 if (get_omap3_evm_rev() == OMAP3EVM_BOARD_GEN_1) { 214 rst_gpio = OMAP3EVM_GPIO_ETH_RST_GEN1; 215 } else { 216 rst_gpio = OMAP3EVM_GPIO_ETH_RST_GEN2; 217 } 218 219 ret = gpio_request(rst_gpio, ""); 220 if (ret < 0) { 221 printf("Unable to get GPIO %d\n", rst_gpio); 222 return ; 223 } 224 225 /* Configure as output */ 226 gpio_direction_output(rst_gpio, 0); 227 228 /* Send a pulse on the GPIO pin */ 229 gpio_set_value(rst_gpio, 1); 230 udelay(1); 231 gpio_set_value(rst_gpio, 0); 232 udelay(1); 233 gpio_set_value(rst_gpio, 1); 234 } 235 236 int board_eth_init(bd_t *bis) 237 { 238 int rc = 0; 239 #ifdef CONFIG_SMC911X 240 #define STR_ENV_ETHADDR "ethaddr" 241 242 struct eth_device *dev; 243 uchar eth_addr[6]; 244 245 rc = smc911x_initialize(0, CONFIG_SMC911X_BASE); 246 247 if (!eth_getenv_enetaddr(STR_ENV_ETHADDR, eth_addr)) { 248 dev = eth_get_dev_by_index(0); 249 if (dev) { 250 eth_setenv_enetaddr(STR_ENV_ETHADDR, dev->enetaddr); 251 } else { 252 printf("omap3evm: Couldn't get eth device\n"); 253 rc = -1; 254 } 255 } 256 #endif 257 return rc; 258 } 259 #endif /* CONFIG_CMD_NET */ 260 261 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD) 262 int board_mmc_init(bd_t *bis) 263 { 264 return omap_mmc_init(0, 0, 0, -1, -1); 265 } 266 #endif 267