common/spl/spl_nor.c

   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
  10 void spl_nor_load_image(void)
  11 {
  12         /*
  13          * Loading of the payload to SDRAM is done with skipping of
  14          * the mkimage header in this SPL NOR driver
  15          */
  16         spl_image.flags |= SPL_COPY_PAYLOAD_ONLY;
  17
  18         if (spl_start_uboot()) {
  19                 /*
  20                  * Load real U-Boot from its location in NOR flash to its
  21                  * defined location in SDRAM
  22                  */
  23                 spl_parse_image_header(
  24                         (const struct image_header *)CONFIG_SYS_UBOOT_BASE);
  25
  26                 memcpy((void *)spl_image.load_addr,
  27                        (void *)(CONFIG_SYS_UBOOT_BASE +
  28                                 sizeof(struct image_header)),
  29                        spl_image.size);
  30         } else {
  31                 /*
  32                  * Load Linux from its location in NOR flash to its defined
  33                  * location in SDRAM
  34                  */
  35                 spl_parse_image_header(
  36                         (const struct image_header *)CONFIG_SYS_OS_BASE);
  37
  38                 memcpy((void *)spl_image.load_addr,
  39                        (void *)(CONFIG_SYS_OS_BASE +
  40                                 sizeof(struct image_header)),
  41                        spl_image.size);
  42
  43                 /*
  44                  * Copy DT blob (fdt) to SDRAM. Passing pointer to flash
  45                  * doesn't work (16 KiB should be enough for DT)
  46                  */
  47                 memcpy((void *)CONFIG_SYS_SPL_ARGS_ADDR,
  48                        (void *)(CONFIG_SYS_FDT_BASE),
  49                        (16 << 10));
  50         }
  51 }