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