1 /* 2 * (C) Copyright 2013 SAMSUNG Electronics 3 * Rajeshwari Shinde <rajeshwari.s@samsung.com> 4 * 5 * SPDX-License-Identifier: GPL-2.0+ 6 */ 7 8 #include <common.h> 9 #include <cros_ec.h> 10 #include <errno.h> 11 #include <fdtdec.h> 12 #include <spi.h> 13 #include <tmu.h> 14 #include <netdev.h> 15 #include <asm/io.h> 16 #include <asm/gpio.h> 17 #include <asm/arch/board.h> 18 #include <asm/arch/cpu.h> 19 #include <asm/arch/dwmmc.h> 20 #include <asm/arch/mmc.h> 21 #include <asm/arch/pinmux.h> 22 #include <asm/arch/power.h> 23 #include <asm/arch/system.h> 24 #include <power/pmic.h> 25 #include <asm/arch/sromc.h> 26 #include <lcd.h> 27 #include <samsung/misc.h> 28 29 DECLARE_GLOBAL_DATA_PTR; 30 31 int __exynos_early_init_f(void) 32 { 33 return 0; 34 } 35 int exynos_early_init_f(void) 36 __attribute__((weak, alias("__exynos_early_init_f"))); 37 38 int __exynos_power_init(void) 39 { 40 return 0; 41 } 42 int exynos_power_init(void) 43 __attribute__((weak, alias("__exynos_power_init"))); 44 45 #if defined CONFIG_EXYNOS_TMU 46 /* Boot Time Thermal Analysis for SoC temperature threshold breach */ 47 static void boot_temp_check(void) 48 { 49 int temp; 50 51 switch (tmu_monitor(&temp)) { 52 case TMU_STATUS_NORMAL: 53 break; 54 case TMU_STATUS_TRIPPED: 55 /* 56 * Status TRIPPED ans WARNING means corresponding threshold 57 * breach 58 */ 59 puts("EXYNOS_TMU: TRIPPING! Device power going down ...\n"); 60 set_ps_hold_ctrl(); 61 hang(); 62 break; 63 case TMU_STATUS_WARNING: 64 puts("EXYNOS_TMU: WARNING! Temperature very high\n"); 65 break; 66 case TMU_STATUS_INIT: 67 /* 68 * TMU_STATUS_INIT means something is wrong with temperature 69 * sensing and TMU status was changed back from NORMAL to INIT. 70 */ 71 puts("EXYNOS_TMU: WARNING! Temperature sensing not done\n"); 72 break; 73 default: 74 debug("EXYNOS_TMU: Unknown TMU state\n"); 75 } 76 } 77 #endif 78 79 int board_init(void) 80 { 81 gd->bd->bi_boot_params = (PHYS_SDRAM_1 + 0x100UL); 82 #if defined CONFIG_EXYNOS_TMU 83 if (tmu_init(gd->fdt_blob) != TMU_STATUS_NORMAL) { 84 debug("%s: Failed to init TMU\n", __func__); 85 return -1; 86 } 87 boot_temp_check(); 88 #endif 89 90 return exynos_init(); 91 } 92 93 int dram_init(void) 94 { 95 int i; 96 u32 addr; 97 98 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { 99 addr = CONFIG_SYS_SDRAM_BASE + (i * SDRAM_BANK_SIZE); 100 gd->ram_size += get_ram_size((long *)addr, SDRAM_BANK_SIZE); 101 } 102 return 0; 103 } 104 105 void dram_init_banksize(void) 106 { 107 int i; 108 u32 addr, size; 109 110 for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) { 111 addr = CONFIG_SYS_SDRAM_BASE + (i * SDRAM_BANK_SIZE); 112 size = get_ram_size((long *)addr, SDRAM_BANK_SIZE); 113 114 gd->bd->bi_dram[i].start = addr; 115 gd->bd->bi_dram[i].size = size; 116 } 117 } 118 119 static int board_uart_init(void) 120 { 121 int err, uart_id, ret = 0; 122 123 for (uart_id = PERIPH_ID_UART0; uart_id <= PERIPH_ID_UART3; uart_id++) { 124 err = exynos_pinmux_config(uart_id, PINMUX_FLAG_NONE); 125 if (err) { 126 debug("UART%d not configured\n", 127 (uart_id - PERIPH_ID_UART0)); 128 ret |= err; 129 } 130 } 131 return ret; 132 } 133 134 #ifdef CONFIG_BOARD_EARLY_INIT_F 135 int board_early_init_f(void) 136 { 137 int err; 138 #ifdef CONFIG_BOARD_TYPES 139 set_board_type(); 140 #endif 141 err = board_uart_init(); 142 if (err) { 143 debug("UART init failed\n"); 144 return err; 145 } 146 147 #ifdef CONFIG_SYS_I2C_INIT_BOARD 148 board_i2c_init(gd->fdt_blob); 149 #endif 150 151 #if defined(CONFIG_OF_CONTROL) && defined(CONFIG_EXYNOS_FB) 152 /* 153 * board_init_f(arch/arm/lib/board.c) calls lcd_setmem() which needs 154 * panel_info.vl_col, panel_info.vl_row and panel_info.vl_bpix, to reserve 155 * FB memory at a very early stage. So, we need to fill panel_info.vl_col, 156 * panel_info.vl_row and panel_info.vl_bpix before lcd_setmem() is called. 157 */ 158 err = exynos_lcd_early_init(gd->fdt_blob); 159 if (err) { 160 debug("LCD early init failed\n"); 161 return err; 162 } 163 #endif 164 165 return exynos_early_init_f(); 166 } 167 #endif 168 169 #if defined(CONFIG_POWER) 170 int power_init_board(void) 171 { 172 set_ps_hold_ctrl(); 173 174 return exynos_power_init(); 175 } 176 #endif 177 178 #ifdef CONFIG_OF_CONTROL 179 #ifdef CONFIG_SMC911X 180 static int decode_sromc(const void *blob, struct fdt_sromc *config) 181 { 182 int err; 183 int node; 184 185 node = fdtdec_next_compatible(blob, 0, COMPAT_SAMSUNG_EXYNOS5_SROMC); 186 if (node < 0) { 187 debug("Could not find SROMC node\n"); 188 return node; 189 } 190 191 config->bank = fdtdec_get_int(blob, node, "bank", 0); 192 config->width = fdtdec_get_int(blob, node, "width", 2); 193 194 err = fdtdec_get_int_array(blob, node, "srom-timing", config->timing, 195 FDT_SROM_TIMING_COUNT); 196 if (err < 0) { 197 debug("Could not decode SROMC configuration Error: %s\n", 198 fdt_strerror(err)); 199 return -FDT_ERR_NOTFOUND; 200 } 201 return 0; 202 } 203 #endif 204 205 int board_eth_init(bd_t *bis) 206 { 207 #ifdef CONFIG_SMC911X 208 u32 smc_bw_conf, smc_bc_conf; 209 struct fdt_sromc config; 210 fdt_addr_t base_addr; 211 int node; 212 213 node = decode_sromc(gd->fdt_blob, &config); 214 if (node < 0) { 215 debug("%s: Could not find sromc configuration\n", __func__); 216 return 0; 217 } 218 node = fdtdec_next_compatible(gd->fdt_blob, node, COMPAT_SMSC_LAN9215); 219 if (node < 0) { 220 debug("%s: Could not find lan9215 configuration\n", __func__); 221 return 0; 222 } 223 224 /* We now have a node, so any problems from now on are errors */ 225 base_addr = fdtdec_get_addr(gd->fdt_blob, node, "reg"); 226 if (base_addr == FDT_ADDR_T_NONE) { 227 debug("%s: Could not find lan9215 address\n", __func__); 228 return -1; 229 } 230 231 /* Ethernet needs data bus width of 16 bits */ 232 if (config.width != 2) { 233 debug("%s: Unsupported bus width %d\n", __func__, 234 config.width); 235 return -1; 236 } 237 smc_bw_conf = SROMC_DATA16_WIDTH(config.bank) 238 | SROMC_BYTE_ENABLE(config.bank); 239 240 smc_bc_conf = SROMC_BC_TACS(config.timing[FDT_SROM_TACS]) | 241 SROMC_BC_TCOS(config.timing[FDT_SROM_TCOS]) | 242 SROMC_BC_TACC(config.timing[FDT_SROM_TACC]) | 243 SROMC_BC_TCOH(config.timing[FDT_SROM_TCOH]) | 244 SROMC_BC_TAH(config.timing[FDT_SROM_TAH]) | 245 SROMC_BC_TACP(config.timing[FDT_SROM_TACP]) | 246 SROMC_BC_PMC(config.timing[FDT_SROM_PMC]); 247 248 /* Select and configure the SROMC bank */ 249 exynos_pinmux_config(PERIPH_ID_SROMC, config.bank); 250 s5p_config_sromc(config.bank, smc_bw_conf, smc_bc_conf); 251 return smc911x_initialize(0, base_addr); 252 #endif 253 return 0; 254 } 255 256 #ifdef CONFIG_GENERIC_MMC 257 static int init_mmc(void) 258 { 259 #ifdef CONFIG_SDHCI 260 return exynos_mmc_init(gd->fdt_blob); 261 #else 262 return 0; 263 #endif 264 } 265 266 static int init_dwmmc(void) 267 { 268 #ifdef CONFIG_DWMMC 269 return exynos_dwmmc_init(gd->fdt_blob); 270 #else 271 return 0; 272 #endif 273 } 274 275 int board_mmc_init(bd_t *bis) 276 { 277 int ret; 278 279 if (get_boot_mode() == BOOT_MODE_SD) { 280 ret = init_mmc(); 281 ret |= init_dwmmc(); 282 } else { 283 ret = init_dwmmc(); 284 ret |= init_mmc(); 285 } 286 287 if (ret) 288 debug("mmc init failed\n"); 289 290 return ret; 291 } 292 #endif 293 294 #ifdef CONFIG_DISPLAY_BOARDINFO 295 int checkboard(void) 296 { 297 const char *board_info; 298 299 board_info = fdt_getprop(gd->fdt_blob, 0, "model", NULL); 300 printf("Board: %s\n", board_info ? board_info : "unknown"); 301 #ifdef CONFIG_BOARD_TYPES 302 board_info = get_board_type(); 303 304 printf("Model: %s\n", board_info ? board_info : "unknown"); 305 #endif 306 return 0; 307 } 308 #endif 309 #endif /* CONFIG_OF_CONTROL */ 310 311 #ifdef CONFIG_BOARD_LATE_INIT 312 int board_late_init(void) 313 { 314 stdio_print_current_devices(); 315 316 if (cros_ec_get_error()) { 317 /* Force console on */ 318 gd->flags &= ~GD_FLG_SILENT; 319 320 printf("cros-ec communications failure %d\n", 321 cros_ec_get_error()); 322 puts("\nPlease reset with Power+Refresh\n\n"); 323 panic("Cannot init cros-ec device"); 324 return -1; 325 } 326 return 0; 327 } 328 #endif 329 330 int arch_early_init_r(void) 331 { 332 #ifdef CONFIG_CROS_EC 333 if (cros_ec_board_init()) { 334 printf("%s: Failed to init EC\n", __func__); 335 return 0; 336 } 337 #endif 338 339 return 0; 340 } 341 342 #ifdef CONFIG_MISC_INIT_R 343 int misc_init_r(void) 344 { 345 #ifdef CONFIG_SET_DFU_ALT_INFO 346 set_dfu_alt_info(); 347 #endif 348 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG 349 set_board_info(); 350 #endif 351 #ifdef CONFIG_LCD_MENU 352 keys_init(); 353 check_boot_mode(); 354 #endif 355 #ifdef CONFIG_CMD_BMP 356 if (panel_info.logo_on) 357 draw_logo(); 358 #endif 359 return 0; 360 } 361 #endif 362