board/samsung/common/board.c

   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/arch/board.h>
  17 #include <asm/arch/cpu.h>
  18 #include <asm/arch/dwmmc.h>
  19 #include <asm/arch/gpio.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 #ifdef CONFIG_EXYNOS_SPI
  91         spi_init();
  92 #endif
  93         return exynos_init();
  94 }
  95
  96 int dram_init(void)
  97 {
  98         int i;
  99         u32 addr;
 100
 101         for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
 102                 addr = CONFIG_SYS_SDRAM_BASE + (i * SDRAM_BANK_SIZE);
 103                 gd->ram_size += get_ram_size((long *)addr, SDRAM_BANK_SIZE);
 104         }
 105         return 0;
 106 }
 107
 108 void dram_init_banksize(void)
 109 {
 110         int i;
 111         u32 addr, size;
 112
 113         for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++) {
 114                 addr = CONFIG_SYS_SDRAM_BASE + (i * SDRAM_BANK_SIZE);
 115                 size = get_ram_size((long *)addr, SDRAM_BANK_SIZE);
 116
 117                 gd->bd->bi_dram[i].start = addr;
 118                 gd->bd->bi_dram[i].size = size;
 119         }
 120 }
 121
 122 static int board_uart_init(void)
 123 {
 124         int err, uart_id, ret = 0;
 125
 126         for (uart_id = PERIPH_ID_UART0; uart_id <= PERIPH_ID_UART3; uart_id++) {
 127                 err = exynos_pinmux_config(uart_id, PINMUX_FLAG_NONE);
 128                 if (err) {
 129                         debug("UART%d not configured\n",
 130                               (uart_id - PERIPH_ID_UART0));
 131                         ret |= err;
 132                 }
 133         }
 134         return ret;
 135 }
 136
 137 #ifdef CONFIG_BOARD_EARLY_INIT_F
 138 int board_early_init_f(void)
 139 {
 140         int err;
 141 #ifdef CONFIG_BOARD_TYPES
 142         set_board_type();
 143 #endif
 144         err = board_uart_init();
 145         if (err) {
 146                 debug("UART init failed\n");
 147                 return err;
 148         }
 149
 150 #ifdef CONFIG_SYS_I2C_INIT_BOARD
 151         board_i2c_init(gd->fdt_blob);
 152 #endif
 153
 154 #if defined(CONFIG_OF_CONTROL) && defined(CONFIG_EXYNOS_FB)
 155 /*
 156  * board_init_f(arch/arm/lib/board.c) calls lcd_setmem() which needs
 157  * panel_info.vl_col, panel_info.vl_row and panel_info.vl_bpix, to reserve
 158  * FB memory at a very early stage. So, we need to fill panel_info.vl_col,
 159  * panel_info.vl_row and panel_info.vl_bpix before lcd_setmem() is called.
 160  */
 161         err = exynos_lcd_early_init(gd->fdt_blob);
 162         if (err) {
 163                 debug("LCD early init failed\n");
 164                 return err;
 165         }
 166 #endif
 167
 168         return exynos_early_init_f();
 169 }
 170 #endif
 171
 172 #if defined(CONFIG_POWER)
 173 int power_init_board(void)
 174 {
 175         set_ps_hold_ctrl();
 176
 177         return exynos_power_init();
 178 }
 179 #endif
 180
 181 #ifdef CONFIG_OF_CONTROL
 182 #ifdef CONFIG_SMC911X
 183 static int decode_sromc(const void *blob, struct fdt_sromc *config)
 184 {
 185         int err;
 186         int node;
 187
 188         node = fdtdec_next_compatible(blob, 0, COMPAT_SAMSUNG_EXYNOS5_SROMC);
 189         if (node < 0) {
 190                 debug("Could not find SROMC node\n");
 191                 return node;
 192         }
 193
 194         config->bank = fdtdec_get_int(blob, node, "bank", 0);
 195         config->width = fdtdec_get_int(blob, node, "width", 2);
 196
 197         err = fdtdec_get_int_array(blob, node, "srom-timing", config->timing,
 198                         FDT_SROM_TIMING_COUNT);
 199         if (err < 0) {
 200                 debug("Could not decode SROMC configuration Error: %s\n",
 201                       fdt_strerror(err));
 202                 return -FDT_ERR_NOTFOUND;
 203         }
 204         return 0;
 205 }
 206 #endif
 207
 208 int board_eth_init(bd_t *bis)
 209 {
 210 #ifdef CONFIG_SMC911X
 211         u32 smc_bw_conf, smc_bc_conf;
 212         struct fdt_sromc config;
 213         fdt_addr_t base_addr;
 214         int node;
 215
 216         node = decode_sromc(gd->fdt_blob, &config);
 217         if (node < 0) {
 218                 debug("%s: Could not find sromc configuration\n", __func__);
 219                 return 0;
 220         }
 221         node = fdtdec_next_compatible(gd->fdt_blob, node, COMPAT_SMSC_LAN9215);
 222         if (node < 0) {
 223                 debug("%s: Could not find lan9215 configuration\n", __func__);
 224                 return 0;
 225         }
 226
 227         /* We now have a node, so any problems from now on are errors */
 228         base_addr = fdtdec_get_addr(gd->fdt_blob, node, "reg");
 229         if (base_addr == FDT_ADDR_T_NONE) {
 230                 debug("%s: Could not find lan9215 address\n", __func__);
 231                 return -1;
 232         }
 233
 234         /* Ethernet needs data bus width of 16 bits */
 235         if (config.width != 2) {
 236                 debug("%s: Unsupported bus width %d\n", __func__,
 237                       config.width);
 238                 return -1;
 239         }
 240         smc_bw_conf = SROMC_DATA16_WIDTH(config.bank)
 241                         | SROMC_BYTE_ENABLE(config.bank);
 242
 243         smc_bc_conf = SROMC_BC_TACS(config.timing[FDT_SROM_TACS])   |
 244                         SROMC_BC_TCOS(config.timing[FDT_SROM_TCOS]) |
 245                         SROMC_BC_TACC(config.timing[FDT_SROM_TACC]) |
 246                         SROMC_BC_TCOH(config.timing[FDT_SROM_TCOH]) |
 247                         SROMC_BC_TAH(config.timing[FDT_SROM_TAH])   |
 248                         SROMC_BC_TACP(config.timing[FDT_SROM_TACP]) |
 249                         SROMC_BC_PMC(config.timing[FDT_SROM_PMC]);
 250
 251         /* Select and configure the SROMC bank */
 252         exynos_pinmux_config(PERIPH_ID_SROMC, config.bank);
 253         s5p_config_sromc(config.bank, smc_bw_conf, smc_bc_conf);
 254         return smc911x_initialize(0, base_addr);
 255 #endif
 256         return 0;
 257 }
 258
 259 #ifdef CONFIG_GENERIC_MMC
 260 static int init_mmc(void)
 261 {
 262 #ifdef CONFIG_SDHCI
 263         return exynos_mmc_init(gd->fdt_blob);
 264 #else
 265         return 0;
 266 #endif
 267 }
 268
 269 static int init_dwmmc(void)
 270 {
 271 #ifdef CONFIG_DWMMC
 272         return exynos_dwmmc_init(gd->fdt_blob);
 273 #else
 274         return 0;
 275 #endif
 276 }
 277
 278 int board_mmc_init(bd_t *bis)
 279 {
 280         int ret;
 281
 282         if (get_boot_mode() == BOOT_MODE_SD) {
 283                 ret = init_mmc();
 284                 ret |= init_dwmmc();
 285         } else {
 286                 ret = init_dwmmc();
 287                 ret |= init_mmc();
 288         }
 289
 290         if (ret)
 291                 debug("mmc init failed\n");
 292
 293         return ret;
 294 }
 295 #endif
 296
 297 #ifdef CONFIG_DISPLAY_BOARDINFO
 298 int checkboard(void)
 299 {
 300         const char *board_info;
 301
 302         board_info = fdt_getprop(gd->fdt_blob, 0, "model", NULL);
 303         printf("Board: %s\n", board_info ? board_info : "unknown");
 304 #ifdef CONFIG_BOARD_TYPES
 305         board_info = get_board_type();
 306
 307         printf("Model: %s\n", board_info ? board_info : "unknown");
 308 #endif
 309         return 0;
 310 }
 311 #endif
 312 #endif /* CONFIG_OF_CONTROL */
 313
 314 #ifdef CONFIG_BOARD_LATE_INIT
 315 int board_late_init(void)
 316 {
 317         stdio_print_current_devices();
 318
 319         if (cros_ec_get_error()) {
 320                 /* Force console on */
 321                 gd->flags &= ~GD_FLG_SILENT;
 322
 323                 printf("cros-ec communications failure %d\n",
 324                        cros_ec_get_error());
 325                 puts("\nPlease reset with Power+Refresh\n\n");
 326                 panic("Cannot init cros-ec device");
 327                 return -1;
 328         }
 329         return 0;
 330 }
 331 #endif
 332
 333 int arch_early_init_r(void)
 334 {
 335 #ifdef CONFIG_CROS_EC
 336         if (cros_ec_board_init()) {
 337                 printf("%s: Failed to init EC\n", __func__);
 338                 return 0;
 339         }
 340 #endif
 341
 342         return 0;
 343 }
 344
 345 #ifdef CONFIG_MISC_INIT_R
 346 int misc_init_r(void)
 347 {
 348 #ifdef CONFIG_SET_DFU_ALT_INFO
 349         set_dfu_alt_info();
 350 #endif
 351 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
 352         set_board_info();
 353 #endif
 354 #ifdef CONFIG_LCD_MENU
 355         keys_init();
 356         check_boot_mode();
 357 #endif
 358 #ifdef CONFIG_CMD_BMP
 359         if (panel_info.logo_on)
 360                 draw_logo();
 361 #endif
 362         return 0;
 363 }
 364 #endif