arch/arm/mach-davinci/spl.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2011
   4  * Heiko Schocher, DENX Software Engineering, hs@denx.de.
   5  */
   6 #include <common.h>
   7 #include <config.h>
   8 #include <hang.h>
   9 #include <spl.h>
  10 #include <asm/u-boot.h>
  11 #include <asm/utils.h>
  12 #include <nand.h>
  13 #include <asm/arch/dm365_lowlevel.h>
  14 #include <ns16550.h>
  15 #include <malloc.h>
  16 #include <spi_flash.h>
  17 #include <mmc.h>
  18
  19 #ifndef CONFIG_SPL_LIBCOMMON_SUPPORT
  20 void puts(const char *str)
  21 {
  22         while (*str)
  23                 putc(*str++);
  24 }
  25
  26 void putc(char c)
  27 {
  28         if (c == '\n')
  29                 NS16550_putc((NS16550_t)(CONFIG_SYS_NS16550_COM1), '\r');
  30
  31         NS16550_putc((NS16550_t)(CONFIG_SYS_NS16550_COM1), c);
  32 }
  33 #endif /* CONFIG_SPL_LIBCOMMON_SUPPORT */
  34
  35 void board_init_f(ulong dummy)
  36 {
  37         arch_cpu_init();
  38
  39         spl_early_init();
  40
  41         preloader_console_init();
  42 }
  43
  44 u32 spl_boot_device(void)
  45 {
  46         switch (davinci_syscfg_regs->bootcfg) {
  47 #ifdef CONFIG_SPL_NAND_SUPPORT
  48         case DAVINCI_NAND8_BOOT:
  49         case DAVINCI_NAND16_BOOT:
  50                 return BOOT_DEVICE_NAND;
  51 #endif
  52
  53 #ifdef CONFIG_SPL_MMC_SUPPORT
  54         case DAVINCI_SD_OR_MMC_BOOT:
  55         case DAVINCI_MMC_ONLY_BOOT:
  56                 return BOOT_DEVICE_MMC1;
  57 #endif
  58
  59 #ifdef CONFIG_SPL_SPI_FLASH_SUPPORT
  60         case DAVINCI_SPI0_FLASH_BOOT:
  61         case DAVINCI_SPI1_FLASH_BOOT:
  62                 return BOOT_DEVICE_SPI;
  63 #endif
  64
  65         default:
  66                 puts("Unknown boot device\n");
  67                 hang();
  68         }
  69 }