arch/arm/mach-davinci/spl.c

   1 /*
   2  * Copyright (C) 2011
   3  * Heiko Schocher, DENX Software Engineering, hs@denx.de.
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7 #include <common.h>
   8 #include <config.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 DECLARE_GLOBAL_DATA_PTR;
  20
  21 #ifndef CONFIG_SPL_LIBCOMMON_SUPPORT
  22 void puts(const char *str)
  23 {
  24         while (*str)
  25                 putc(*str++);
  26 }
  27
  28 void putc(char c)
  29 {
  30         if (c == '\n')
  31                 NS16550_putc((NS16550_t)(CONFIG_SYS_NS16550_COM1), '\r');
  32
  33         NS16550_putc((NS16550_t)(CONFIG_SYS_NS16550_COM1), c);
  34 }
  35 #endif /* CONFIG_SPL_LIBCOMMON_SUPPORT */
  36
  37 void spl_board_init(void)
  38 {
  39 #ifdef CONFIG_SOC_DM365
  40         dm36x_lowlevel_init(0);
  41 #endif
  42 #ifdef CONFIG_SOC_DA8XX
  43         arch_cpu_init();
  44 #endif
  45         preloader_console_init();
  46 }
  47
  48 u32 spl_boot_mode(const u32 boot_device)
  49 {
  50         return MMCSD_MODE_RAW;
  51 }
  52
  53 u32 spl_boot_device(void)
  54 {
  55         switch (davinci_syscfg_regs->bootcfg) {
  56 #ifdef CONFIG_SPL_NAND_SUPPORT
  57         case DAVINCI_NAND8_BOOT:
  58         case DAVINCI_NAND16_BOOT:
  59                 return BOOT_DEVICE_NAND;
  60 #endif
  61
  62 #ifdef CONFIG_SPL_MMC_SUPPORT
  63         case DAVINCI_SD_OR_MMC_BOOT:
  64         case DAVINCI_MMC_ONLY_BOOT:
  65                 return BOOT_DEVICE_MMC1;
  66 #endif
  67
  68 #ifdef CONFIG_SPL_SPI_FLASH_SUPPORT
  69         case DAVINCI_SPI0_FLASH_BOOT:
  70         case DAVINCI_SPI1_FLASH_BOOT:
  71                 return BOOT_DEVICE_SPI;
  72 #endif
  73
  74         default:
  75                 puts("Unknown boot device\n");
  76                 hang();
  77         }
  78 }