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 <spl.h>
   9 #include <asm/u-boot.h>
  10 #include <asm/utils.h>
  11 #include <nand.h>
  12 #include <asm/arch/dm365_lowlevel.h>
  13 #include <ns16550.h>
  14 #include <malloc.h>
  15 #include <spi_flash.h>
  16 #include <mmc.h>
  17
  18 #ifndef CONFIG_SPL_LIBCOMMON_SUPPORT
  19 void puts(const char *str)
  20 {
  21         while (*str)
  22                 putc(*str++);
  23 }
  24
  25 void putc(char c)
  26 {
  27         if (c == '\n')
  28                 NS16550_putc((NS16550_t)(CONFIG_SYS_NS16550_COM1), '\r');
  29
  30         NS16550_putc((NS16550_t)(CONFIG_SYS_NS16550_COM1), c);
  31 }
  32 #endif /* CONFIG_SPL_LIBCOMMON_SUPPORT */
  33
  34 void spl_board_init(void)
  35 {
  36         arch_cpu_init();
  37         preloader_console_init();
  38 }
  39
  40 u32 spl_boot_device(void)
  41 {
  42         switch (davinci_syscfg_regs->bootcfg) {
  43 #ifdef CONFIG_SPL_NAND_SUPPORT
  44         case DAVINCI_NAND8_BOOT:
  45         case DAVINCI_NAND16_BOOT:
  46                 return BOOT_DEVICE_NAND;
  47 #endif
  48
  49 #ifdef CONFIG_SPL_MMC_SUPPORT
  50         case DAVINCI_SD_OR_MMC_BOOT:
  51         case DAVINCI_MMC_ONLY_BOOT:
  52                 return BOOT_DEVICE_MMC1;
  53 #endif
  54
  55 #ifdef CONFIG_SPL_SPI_FLASH_SUPPORT
  56         case DAVINCI_SPI0_FLASH_BOOT:
  57         case DAVINCI_SPI1_FLASH_BOOT:
  58                 return BOOT_DEVICE_SPI;
  59 #endif
  60
  61         default:
  62                 puts("Unknown boot device\n");
  63                 hang();
  64         }
  65 }