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9ea5c6ef SS |
1 | /* |
2 | * Copyright (C) 2011 | |
3 | * Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de> | |
4 | * | |
5 | * See file CREDITS for list of people who contributed to this | |
6 | * project. | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or | |
9 | * modify it under the terms of the GNU General Public License as | |
10 | * published by the Free Software Foundation; either version 2 of | |
11 | * the License, or (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License | |
19 | * along with this program; if not, write to the Free Software | |
20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
21 | * MA 02111-1307 USA | |
22 | */ | |
23 | #include <common.h> | |
d97b4ce8 | 24 | #include <config.h> |
47f7bcae | 25 | #include <spl.h> |
df163a59 | 26 | #include <asm/io.h> |
9ea5c6ef | 27 | #include <nand.h> |
9ea5c6ef | 28 | |
9ea5c6ef SS |
29 | void spl_nand_load_image(void) |
30 | { | |
31 | struct image_header *header; | |
df163a59 SS |
32 | int *src __attribute__((unused)); |
33 | int *dst __attribute__((unused)); | |
34 | ||
8082fda9 | 35 | debug("spl: nand - using hw ecc\n"); |
8082fda9 | 36 | nand_init(); |
9ea5c6ef SS |
37 | |
38 | /*use CONFIG_SYS_TEXT_BASE as temporary storage area */ | |
39 | header = (struct image_header *)(CONFIG_SYS_TEXT_BASE); | |
df163a59 | 40 | #ifdef CONFIG_SPL_OS_BOOT |
379c19ab | 41 | if (!spl_start_uboot()) { |
df163a59 SS |
42 | /* |
43 | * load parameter image | |
44 | * load to temp position since nand_spl_load_image reads | |
45 | * a whole block which is typically larger than | |
b6e95fd4 | 46 | * CONFIG_CMD_SPL_WRITE_SIZE therefore may overwrite |
df163a59 SS |
47 | * following sections like BSS |
48 | */ | |
49 | nand_spl_load_image(CONFIG_CMD_SPL_NAND_OFS, | |
50 | CONFIG_CMD_SPL_WRITE_SIZE, | |
51 | (void *)CONFIG_SYS_TEXT_BASE); | |
52 | /* copy to destintion */ | |
53 | for (dst = (int *)CONFIG_SYS_SPL_ARGS_ADDR, | |
54 | src = (int *)CONFIG_SYS_TEXT_BASE; | |
55 | src < (int *)(CONFIG_SYS_TEXT_BASE + | |
56 | CONFIG_CMD_SPL_WRITE_SIZE); | |
57 | src++, dst++) { | |
58 | writel(readl(src), dst); | |
59 | } | |
9ea5c6ef | 60 | |
df163a59 SS |
61 | /* load linux */ |
62 | nand_spl_load_image(CONFIG_SYS_NAND_SPL_KERNEL_OFFS, | |
63 | CONFIG_SYS_NAND_PAGE_SIZE, (void *)header); | |
64 | spl_parse_image_header(header); | |
379c19ab SS |
65 | if (header->ih_os == IH_OS_LINUX) { |
66 | /* happy - was a linux */ | |
67 | nand_spl_load_image(CONFIG_SYS_NAND_SPL_KERNEL_OFFS, | |
68 | spl_image.size, (void *)spl_image.load_addr); | |
69 | nand_deselect(); | |
70 | return; | |
71 | } else { | |
d97b4ce8 TR |
72 | puts("The Expected Linux image was not " |
73 | "found. Please check your NAND " | |
379c19ab | 74 | "configuration.\n"); |
d97b4ce8 | 75 | puts("Trying to start u-boot now...\n"); |
379c19ab SS |
76 | } |
77 | } | |
df163a59 | 78 | #endif |
9ea5c6ef | 79 | #ifdef CONFIG_NAND_ENV_DST |
379c19ab SS |
80 | nand_spl_load_image(CONFIG_ENV_OFFSET, |
81 | CONFIG_SYS_NAND_PAGE_SIZE, (void *)header); | |
82 | spl_parse_image_header(header); | |
83 | nand_spl_load_image(CONFIG_ENV_OFFSET, spl_image.size, | |
84 | (void *)spl_image.load_addr); | |
9ea5c6ef | 85 | #ifdef CONFIG_ENV_OFFSET_REDUND |
379c19ab SS |
86 | nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, |
87 | CONFIG_SYS_NAND_PAGE_SIZE, (void *)header); | |
88 | spl_parse_image_header(header); | |
89 | nand_spl_load_image(CONFIG_ENV_OFFSET_REDUND, spl_image.size, | |
90 | (void *)spl_image.load_addr); | |
9ea5c6ef SS |
91 | #endif |
92 | #endif | |
379c19ab SS |
93 | /* Load u-boot */ |
94 | nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS, | |
95 | CONFIG_SYS_NAND_PAGE_SIZE, (void *)header); | |
96 | spl_parse_image_header(header); | |
97 | nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS, | |
98 | spl_image.size, (void *)spl_image.load_addr); | |
9ea5c6ef SS |
99 | nand_deselect(); |
100 | } |