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         }
  43
  44         return BOOT_DEVICE_MMC1;
  45 }
  46
  47 u32 spl_mmc_boot_mode(const u32 boot_device)
  48 {
  49         return MMCSD_MODE_RAW;
  50 }
  51
  52 int spl_mmc_boot_partition(const u32 boot_device)
  53 {
  54         switch (boot_device) {
  55         case BOOT_DEVICE_MMC1:
  56                 return CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION;
  57         case BOOT_DEVICE_MMC2:
  58                 return CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION_MMC2;
  59         default:
  60                 return -EINVAL;
  61         }
  62 }
  63
  64 #ifdef CONFIG_SPL_DISPLAY_PRINT
  65 void spl_display_print(void)
  66 {
  67         DECLARE_GLOBAL_DATA_PTR;
  68         const char *model;
  69
  70         /* same code than show_board_info() but not compiled for SPL
  71          * see CONFIG_DISPLAY_BOARDINFO & common/board_info.c
  72          */
  73         model = fdt_getprop(gd->fdt_blob, 0, "model", NULL);
  74         if (model)
  75                 printf("Model: %s\n", model);
  76 }
  77 #endif
  78
  79 __weak int board_early_init_f(void)
  80 {
  81         return 0;
  82 }
  83
  84 void board_init_f(ulong dummy)
  85 {
  86         struct udevice *dev;
  87         int ret;
  88
  89         arch_cpu_init();
  90
  91         ret = spl_early_init();
  92         if (ret) {
  93                 debug("spl_early_init() failed: %d\n", ret);
  94                 hang();
  95         }
  96
  97         ret = uclass_get_device(UCLASS_CLK, 0, &dev);
  98         if (ret) {
  99                 debug("Clock init failed: %d\n", ret);
 100                 return;
 101         }
 102
 103         ret = uclass_get_device(UCLASS_RESET, 0, &dev);
 104         if (ret) {
 105                 debug("Reset init failed: %d\n", ret);
 106                 return;
 107         }
 108
 109         ret = uclass_get_device(UCLASS_PINCTRL, 0, &dev);
 110         if (ret) {
 111                 debug("%s: Cannot find pinctrl device\n", __func__);
 112                 return;
 113         }
 114
 115         /* enable console uart printing */
 116         preloader_console_init();
 117
 118         ret = board_early_init_f();
 119         if (ret) {
 120                 debug("board_early_init_f() failed: %d\n", ret);
 121                 hang();
 122         }
 123
 124         ret = uclass_get_device(UCLASS_RAM, 0, &dev);
 125         if (ret) {
 126                 printf("DRAM init failed: %d\n", ret);
 127                 hang();
 128         }
 129 }