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/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