arch/arm/mach-stm32mp/spl.c

   1 // SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
   2 /*
   3  * Copyright (C) 2018, STMicroelectronics - All Rights Reserved
   4  */
   5
   6 #include <common.h>
   7 #include <dm.h>
   8 #include <hang.h>
   9 #include <spl.h>
  10 #include <asm/io.h>
  11 #include <asm/arch/sys_proto.h>
  12 #include <linux/libfdt.h>
  13
  14 u32 spl_boot_device(void)
  15 {
  16         u32 boot_mode;
  17
  18         boot_mode = get_bootmode();
  19
  20         switch (boot_mode) {
  21         case BOOT_FLASH_SD_1:
  22         case BOOT_FLASH_EMMC_1:
  23                 return BOOT_DEVICE_MMC1;
  24         case BOOT_FLASH_SD_2:
  25         case BOOT_FLASH_EMMC_2:
  26                 return BOOT_DEVICE_MMC2;
  27         case BOOT_SERIAL_UART_1:
  28         case BOOT_SERIAL_UART_2:
  29         case BOOT_SERIAL_UART_3:
  30         case BOOT_SERIAL_UART_4:
  31         case BOOT_SERIAL_UART_5:
  32         case BOOT_SERIAL_UART_6:
  33         case BOOT_SERIAL_UART_7:
  34         case BOOT_SERIAL_UART_8:
  35                 return BOOT_DEVICE_UART;
  36         case BOOT_SERIAL_USB_OTG:
  37                 return BOOT_DEVICE_USB;
  38         case BOOT_FLASH_NAND_FMC:
  39                 return BOOT_DEVICE_NAND;
  40         case BOOT_FLASH_NOR_QSPI:
  41                 return BOOT_DEVICE_SPI;
  42         case BOOT_FLASH_SPINAND_1:
  43                 return BOOT_DEVICE_NONE; /* SPINAND not supported in SPL */
  44         }
  45
  46         return BOOT_DEVICE_MMC1;
  47 }
  48
  49 u32 spl_mmc_boot_mode(const u32 boot_device)
  50 {
  51         return MMCSD_MODE_RAW;
  52 }
  53
  54 int spl_mmc_boot_partition(const u32 boot_device)
  55 {
  56         switch (boot_device) {
  57         case BOOT_DEVICE_MMC1:
  58                 return CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION;
  59         case BOOT_DEVICE_MMC2:
  60                 return CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION_MMC2;
  61         default:
  62                 return -EINVAL;
  63         }
  64 }
  65
  66 #ifdef CONFIG_SPL_DISPLAY_PRINT
  67 void spl_display_print(void)
  68 {
  69         DECLARE_GLOBAL_DATA_PTR;
  70         const char *model;
  71
  72         /* same code than show_board_info() but not compiled for SPL
  73          * see CONFIG_DISPLAY_BOARDINFO & common/board_info.c
  74          */
  75         model = fdt_getprop(gd->fdt_blob, 0, "model", NULL);
  76         if (model)
  77                 printf("Model: %s\n", model);
  78 }
  79 #endif
  80
  81 __weak int board_early_init_f(void)
  82 {
  83         return 0;
  84 }
  85
  86 void board_init_f(ulong dummy)
  87 {
  88         struct udevice *dev;
  89         int ret;
  90
  91         arch_cpu_init();
  92
  93         ret = spl_early_init();
  94         if (ret) {
  95                 debug("spl_early_init() failed: %d\n", ret);
  96                 hang();
  97         }
  98
  99         ret = uclass_get_device(UCLASS_CLK, 0, &dev);
 100         if (ret) {
 101                 debug("Clock init failed: %d\n", ret);
 102                 hang();
 103         }
 104
 105         ret = uclass_get_device(UCLASS_RESET, 0, &dev);
 106         if (ret) {
 107                 debug("Reset init failed: %d\n", ret);
 108                 hang();
 109         }
 110
 111         ret = uclass_get_device(UCLASS_PINCTRL, 0, &dev);
 112         if (ret) {
 113                 debug("%s: Cannot find pinctrl device\n", __func__);
 114                 hang();
 115         }
 116
 117         /* enable console uart printing */
 118         preloader_console_init();
 119
 120         ret = board_early_init_f();
 121         if (ret) {
 122                 debug("board_early_init_f() failed: %d\n", ret);
 123                 hang();
 124         }
 125
 126         ret = uclass_get_device(UCLASS_RAM, 0, &dev);
 127         if (ret) {
 128                 printf("DRAM init failed: %d\n", ret);
 129                 hang();
 130         }
 131 }