1 // SPDX-License-Identifier: GPL-2.0+ 2 /* 3 * Board functions for IGEP COM AQUILA and SMARC AM335x based boards 4 * 5 * Copyright (C) 2013-2017, ISEE 2007 SL - http://www.isee.biz/ 6 */ 7 8 #include <common.h> 9 #include <errno.h> 10 #include <spl.h> 11 #include <asm/arch/cpu.h> 12 #include <asm/arch/hardware.h> 13 #include <asm/arch/omap.h> 14 #include <asm/arch/ddr_defs.h> 15 #include <asm/arch/clock.h> 16 #include <asm/arch/gpio.h> 17 #include <asm/arch/mmc_host_def.h> 18 #include <asm/arch/sys_proto.h> 19 #include <asm/io.h> 20 #include <asm/emif.h> 21 #include <asm/gpio.h> 22 #include <i2c.h> 23 #include <miiphy.h> 24 #include <cpsw.h> 25 #include <fdt_support.h> 26 #include <mtd_node.h> 27 #include <jffs2/load_kernel.h> 28 #include <environment.h> 29 #include "board.h" 30 31 DECLARE_GLOBAL_DATA_PTR; 32 33 /* GPIO0_27 and GPIO0_26 are used to read board revision from IGEP003x boards 34 * and control IGEP0034 green and red LEDs. 35 * U-boot configures these pins as input pullup to detect board revision: 36 * IGEP0034-LITE = 0b00 37 * IGEP0034 (FULL) = 0b01 38 * IGEP0033 = 0b1X 39 */ 40 #define GPIO_GREEN_REVISION 27 41 #define GPIO_RED_REVISION 26 42 43 static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE; 44 45 /* 46 * Routine: get_board_revision 47 * Description: Returns the board revision 48 */ 49 static int get_board_revision(void) 50 { 51 int revision; 52 53 gpio_request(GPIO_GREEN_REVISION, "green_revision"); 54 gpio_direction_input(GPIO_GREEN_REVISION); 55 revision = 2 * gpio_get_value(GPIO_GREEN_REVISION); 56 gpio_free(GPIO_GREEN_REVISION); 57 58 gpio_request(GPIO_RED_REVISION, "red_revision"); 59 gpio_direction_input(GPIO_RED_REVISION); 60 revision = revision + gpio_get_value(GPIO_RED_REVISION); 61 gpio_free(GPIO_RED_REVISION); 62 63 return revision; 64 } 65 66 #ifdef CONFIG_SPL_BUILD 67 /* PN H5TQ4G63AFR is equivalent to MT41K256M16HA125*/ 68 static const struct ddr_data ddr3_igep0034_data = { 69 .datardsratio0 = MT41K256M16HA125E_RD_DQS, 70 .datawdsratio0 = MT41K256M16HA125E_WR_DQS, 71 .datafwsratio0 = MT41K256M16HA125E_PHY_FIFO_WE, 72 .datawrsratio0 = MT41K256M16HA125E_PHY_WR_DATA, 73 }; 74 75 static const struct ddr_data ddr3_igep0034_lite_data = { 76 .datardsratio0 = K4B2G1646EBIH9_RD_DQS, 77 .datawdsratio0 = K4B2G1646EBIH9_WR_DQS, 78 .datafwsratio0 = K4B2G1646EBIH9_PHY_FIFO_WE, 79 .datawrsratio0 = K4B2G1646EBIH9_PHY_WR_DATA, 80 }; 81 82 static const struct cmd_control ddr3_igep0034_cmd_ctrl_data = { 83 .cmd0csratio = MT41K256M16HA125E_RATIO, 84 .cmd0iclkout = MT41K256M16HA125E_INVERT_CLKOUT, 85 86 .cmd1csratio = MT41K256M16HA125E_RATIO, 87 .cmd1iclkout = MT41K256M16HA125E_INVERT_CLKOUT, 88 89 .cmd2csratio = MT41K256M16HA125E_RATIO, 90 .cmd2iclkout = MT41K256M16HA125E_INVERT_CLKOUT, 91 }; 92 93 static const struct cmd_control ddr3_igep0034_lite_cmd_ctrl_data = { 94 .cmd0csratio = K4B2G1646EBIH9_RATIO, 95 .cmd0iclkout = K4B2G1646EBIH9_INVERT_CLKOUT, 96 97 .cmd1csratio = K4B2G1646EBIH9_RATIO, 98 .cmd1iclkout = K4B2G1646EBIH9_INVERT_CLKOUT, 99 100 .cmd2csratio = K4B2G1646EBIH9_RATIO, 101 .cmd2iclkout = K4B2G1646EBIH9_INVERT_CLKOUT, 102 }; 103 104 static struct emif_regs ddr3_igep0034_emif_reg_data = { 105 .sdram_config = MT41K256M16HA125E_EMIF_SDCFG, 106 .ref_ctrl = MT41K256M16HA125E_EMIF_SDREF, 107 .sdram_tim1 = MT41K256M16HA125E_EMIF_TIM1, 108 .sdram_tim2 = MT41K256M16HA125E_EMIF_TIM2, 109 .sdram_tim3 = MT41K256M16HA125E_EMIF_TIM3, 110 .zq_config = MT41K256M16HA125E_ZQ_CFG, 111 .emif_ddr_phy_ctlr_1 = MT41K256M16HA125E_EMIF_READ_LATENCY, 112 }; 113 114 static struct emif_regs ddr3_igep0034_lite_emif_reg_data = { 115 .sdram_config = K4B2G1646EBIH9_EMIF_SDCFG, 116 .ref_ctrl = K4B2G1646EBIH9_EMIF_SDREF, 117 .sdram_tim1 = K4B2G1646EBIH9_EMIF_TIM1, 118 .sdram_tim2 = K4B2G1646EBIH9_EMIF_TIM2, 119 .sdram_tim3 = K4B2G1646EBIH9_EMIF_TIM3, 120 .zq_config = K4B2G1646EBIH9_ZQ_CFG, 121 .emif_ddr_phy_ctlr_1 = K4B2G1646EBIH9_EMIF_READ_LATENCY, 122 }; 123 124 const struct ctrl_ioregs ioregs_igep0034 = { 125 .cm0ioctl = MT41K256M16HA125E_IOCTRL_VALUE, 126 .cm1ioctl = MT41K256M16HA125E_IOCTRL_VALUE, 127 .cm2ioctl = MT41K256M16HA125E_IOCTRL_VALUE, 128 .dt0ioctl = MT41K256M16HA125E_IOCTRL_VALUE, 129 .dt1ioctl = MT41K256M16HA125E_IOCTRL_VALUE, 130 }; 131 132 const struct ctrl_ioregs ioregs_igep0034_lite = { 133 .cm0ioctl = K4B2G1646EBIH9_IOCTRL_VALUE, 134 .cm1ioctl = K4B2G1646EBIH9_IOCTRL_VALUE, 135 .cm2ioctl = K4B2G1646EBIH9_IOCTRL_VALUE, 136 .dt0ioctl = K4B2G1646EBIH9_IOCTRL_VALUE, 137 .dt1ioctl = K4B2G1646EBIH9_IOCTRL_VALUE, 138 }; 139 140 #define OSC (V_OSCK/1000000) 141 const struct dpll_params dpll_ddr = { 142 400, OSC-1, 1, -1, -1, -1, -1}; 143 144 const struct dpll_params *get_dpll_ddr_params(void) 145 { 146 return &dpll_ddr; 147 } 148 149 void set_uart_mux_conf(void) 150 { 151 enable_uart0_pin_mux(); 152 } 153 154 void set_mux_conf_regs(void) 155 { 156 enable_board_pin_mux(); 157 } 158 159 void sdram_init(void) 160 { 161 if (get_board_revision() == 1) 162 config_ddr(400, &ioregs_igep0034, &ddr3_igep0034_data, 163 &ddr3_igep0034_cmd_ctrl_data, &ddr3_igep0034_emif_reg_data, 0); 164 else 165 config_ddr(400, &ioregs_igep0034_lite, &ddr3_igep0034_lite_data, 166 &ddr3_igep0034_lite_cmd_ctrl_data, &ddr3_igep0034_lite_emif_reg_data, 0); 167 } 168 169 #ifdef CONFIG_SPL_OS_BOOT 170 int spl_start_uboot(void) 171 { 172 /* break into full u-boot on 'c' */ 173 return serial_tstc() && serial_getc() == 'c'; 174 } 175 #endif 176 #endif 177 178 /* 179 * Basic board specific setup. Pinmux has been handled already. 180 */ 181 int board_init(void) 182 { 183 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; 184 185 gpmc_init(); 186 187 return 0; 188 } 189 190 #ifdef CONFIG_BOARD_LATE_INIT 191 int board_late_init(void) 192 { 193 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG 194 switch (get_board_revision()) { 195 case 0: 196 env_set("board_name", "igep0034-lite"); 197 break; 198 case 1: 199 env_set("board_name", "igep0034"); 200 break; 201 default: 202 env_set("board_name", "igep0033"); 203 break; 204 } 205 #endif 206 return 0; 207 } 208 #endif 209 210 #ifdef CONFIG_OF_BOARD_SETUP 211 int ft_board_setup(void *blob, bd_t *bd) 212 { 213 #ifdef CONFIG_FDT_FIXUP_PARTITIONS 214 static const struct node_info nodes[] = { 215 { "ti,omap2-nand", MTD_DEV_TYPE_NAND, }, 216 }; 217 218 fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes)); 219 #endif 220 return 0; 221 } 222 #endif 223 224 #if defined(CONFIG_DRIVER_TI_CPSW) 225 static void cpsw_control(int enabled) 226 { 227 /* VTP can be added here */ 228 229 return; 230 } 231 232 static struct cpsw_slave_data cpsw_slaves[] = { 233 { 234 .slave_reg_ofs = 0x208, 235 .sliver_reg_ofs = 0xd80, 236 .phy_addr = 0, 237 .phy_if = PHY_INTERFACE_MODE_RMII, 238 }, 239 }; 240 241 static struct cpsw_platform_data cpsw_data = { 242 .mdio_base = CPSW_MDIO_BASE, 243 .cpsw_base = CPSW_BASE, 244 .mdio_div = 0xff, 245 .channels = 8, 246 .cpdma_reg_ofs = 0x800, 247 .slaves = 1, 248 .slave_data = cpsw_slaves, 249 .ale_reg_ofs = 0xd00, 250 .ale_entries = 1024, 251 .host_port_reg_ofs = 0x108, 252 .hw_stats_reg_ofs = 0x900, 253 .bd_ram_ofs = 0x2000, 254 .mac_control = (1 << 5), 255 .control = cpsw_control, 256 .host_port_num = 0, 257 .version = CPSW_CTRL_VERSION_2, 258 }; 259 260 int board_eth_init(bd_t *bis) 261 { 262 int rv, ret = 0; 263 uint8_t mac_addr[6]; 264 uint32_t mac_hi, mac_lo; 265 266 if (!eth_env_get_enetaddr("ethaddr", mac_addr)) { 267 /* try reading mac address from efuse */ 268 mac_lo = readl(&cdev->macid0l); 269 mac_hi = readl(&cdev->macid0h); 270 mac_addr[0] = mac_hi & 0xFF; 271 mac_addr[1] = (mac_hi & 0xFF00) >> 8; 272 mac_addr[2] = (mac_hi & 0xFF0000) >> 16; 273 mac_addr[3] = (mac_hi & 0xFF000000) >> 24; 274 mac_addr[4] = mac_lo & 0xFF; 275 mac_addr[5] = (mac_lo & 0xFF00) >> 8; 276 if (is_valid_ethaddr(mac_addr)) 277 eth_env_set_enetaddr("ethaddr", mac_addr); 278 } 279 280 writel((GMII1_SEL_RMII | RMII1_IO_CLK_EN), 281 &cdev->miisel); 282 283 if (get_board_revision() == 1) 284 cpsw_slaves[0].phy_addr = 1; 285 286 rv = cpsw_register(&cpsw_data); 287 if (rv < 0) 288 printf("Error %d registering CPSW switch\n", rv); 289 else 290 ret += rv; 291 292 return ret; 293 } 294 #endif 295