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Stefan Roese33d34642012-08-27 12:50:59 +02001/*
2 * Copyright (C) 2012 Stefan Roese <sr@denx.de>
3 *
Wolfgang Denk1a459662013-07-08 09:37:19 +02004 * SPDX-License-Identifier: GPL-2.0+
Stefan Roese33d34642012-08-27 12:50:59 +02005 */
6
7#include <common.h>
8#include <spl.h>
9
Nikita Kiryanov36afd452015-11-08 17:11:49 +020010int spl_nor_load_image(void)
Stefan Roese33d34642012-08-27 12:50:59 +020011{
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
Masahiro Yamada9f9d8702015-01-08 19:23:35 +090018#ifdef CONFIG_SPL_OS_BOOT
19 if (!spl_start_uboot()) {
Heiko Schocherb9ea0c32015-02-06 09:31:36 +010020 const struct image_header *header;
Stefan Roese33d34642012-08-27 12:50:59 +020021
Stefan Roese33d34642012-08-27 12:50:59 +020022 /*
23 * Load Linux from its location in NOR flash to its defined
24 * location in SDRAM
25 */
Masahiro Yamada9f9d8702015-01-08 19:23:35 +090026 header = (const struct image_header *)CONFIG_SYS_OS_BASE;
Stefan Roese33d34642012-08-27 12:50:59 +020027
Masahiro Yamada9f9d8702015-01-08 19:23:35 +090028 if (image_get_os(header) == IH_OS_LINUX) {
29 /* happy - was a Linux */
Stefan Roese33d34642012-08-27 12:50:59 +020030
Masahiro Yamada9f9d8702015-01-08 19:23:35 +090031 spl_parse_image_header(header);
32
33 memcpy((void *)spl_image.load_addr,
34 (void *)(CONFIG_SYS_OS_BASE +
35 sizeof(struct image_header)),
36 spl_image.size);
37
38 /*
39 * Copy DT blob (fdt) to SDRAM. Passing pointer to
40 * flash doesn't work (16 KiB should be enough for DT)
41 */
42 memcpy((void *)CONFIG_SYS_SPL_ARGS_ADDR,
43 (void *)(CONFIG_SYS_FDT_BASE),
44 (16 << 10));
45
Nikita Kiryanov36afd452015-11-08 17:11:49 +020046 return 0;
Masahiro Yamada9f9d8702015-01-08 19:23:35 +090047 } else {
48 puts("The Expected Linux image was not found.\n"
49 "Please check your NOR configuration.\n"
50 "Trying to start u-boot now...\n");
51 }
Stefan Roese33d34642012-08-27 12:50:59 +020052 }
Masahiro Yamada9f9d8702015-01-08 19:23:35 +090053#endif
54
55 /*
56 * Load real U-Boot from its location in NOR flash to its
57 * defined location in SDRAM
58 */
59 spl_parse_image_header(
60 (const struct image_header *)CONFIG_SYS_UBOOT_BASE);
61
62 memcpy((void *)spl_image.load_addr,
63 (void *)(CONFIG_SYS_UBOOT_BASE + sizeof(struct image_header)),
64 spl_image.size);
Nikita Kiryanov36afd452015-11-08 17:11:49 +020065
66 return 0;
Stefan Roese33d34642012-08-27 12:50:59 +020067}