LXR uboot/common/spl/spl

   1/*
   2 * Copyright (C) 2012 Stefan Roese <sr@denx.de>
   3 *
   4 * SPDX-License-Identifier:     GPL-2.0+
   5 */
   6
   7#include <common.h>
   8#include <spl.h>
   9
  10static int spl_nor_load_image(struct spl_image_info *spl_image,
  11                              struct spl_boot_device *bootdev)
  12{
  13        int ret;
  14        /*
  15         * Loading of the payload to SDRAM is done with skipping of
  16         * the mkimage header in this SPL NOR driver
  17         */
  18        spl_image->flags |= SPL_COPY_PAYLOAD_ONLY;
  19
  20#ifdef CONFIG_SPL_OS_BOOT
  21        if (!spl_start_uboot()) {
  22                const struct image_header *header;
  23
  24                /*
  25                 * Load Linux from its location in NOR flash to its defined
  26                 * location in SDRAM
  27                 */
  28                header = (const struct image_header *)CONFIG_SYS_OS_BASE;
  29
  30                if (image_get_os(header) == IH_OS_LINUX) {
  31                        /* happy - was a Linux */
  32
  33                        ret = spl_parse_image_header(spl_image, header);
  34                        if (ret)
  35                                return ret;
  36
  37                        memcpy((void *)spl_image->load_addr,
  38                               (void *)(CONFIG_SYS_OS_BASE +
  39                                        sizeof(struct image_header)),
  40                               spl_image->size);
  41
  42                        spl_image->arg = (void *)CONFIG_SYS_FDT_BASE;
  43
  44                        return 0;
  45                } else {
  46                        puts("The Expected Linux image was not found.\n"
  47                             "Please check your NOR configuration.\n"
  48                             "Trying to start u-boot now...\n");
  49                }
  50        }
  51#endif
  52
  53        /*
  54         * Load real U-Boot from its location in NOR flash to its
  55         * defined location in SDRAM
  56         */
  57        ret = spl_parse_image_header(spl_image,
  58                        (const struct image_header *)CONFIG_SYS_UBOOT_BASE);
  59        if (ret)
  60                return ret;
  61
  62        memcpy((void *)(unsigned long)spl_image->load_addr,
  63               (void *)(CONFIG_SYS_UBOOT_BASE + sizeof(struct image_header)),
  64               spl_image->size);
  65
  66        return 0;
  67}
  68SPL_LOAD_IMAGE_METHOD("NOR", 0, BOOT_DEVICE_NOR, spl_nor_load_image);
  69