1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2011
* Corscience GmbH & Co. KG - Simon Schwarz <schwarz@corscience.de>
*/
#include <common.h>
#include <config.h>
#include <spl.h>
#include <asm/io.h>
#include <nand.h>
#include <linux/libfdt_env.h>
#include <fdt.h>
#if defined(CONFIG_SPL_NAND_RAW_ONLY)
int spl_nand_load_image(struct spl_image_info *spl_image,
struct spl_boot_device *bootdev)
{
nand_init();
nand_spl_load_image(CONFIG_SYS_NAND_U_BOOT_OFFS,
CONFIG_SYS_NAND_U_BOOT_SIZE,
(void *)CONFIG_SYS_NAND_U_BOOT_DST);
spl_set_header_raw_uboot(spl_image);
nand_deselect();
return 0;
}
#else
static ulong spl_nand_fit_read(struct spl_load_info *load, ulong offs,
ulong size, void *dst)
{
int ret;
ret = nand_spl_load_image(offs, size, dst);
if (!ret)
return size;
else
return 0;
}
static int spl_nand_load_element(struct spl_image_info *spl_image,
int offset, struct image_header *header)
{
int err;
err = nand_spl_load_image(offset, sizeof(*header), (void *)header);
if (err)
return err;
if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
image_get_magic(header) == FDT_MAGIC) {
struct spl_load_info load;
debug("Found FIT\n");
load.dev = NULL;
load.priv = NULL;
load.filename = NULL;
load.bl_len = 1;
load.read = spl_nand_fit_read;
return spl_load_simple_fit(spl_image, &load, offset, header);
} else {
err = spl_parse_image_header(spl_image, header);
if (err)
return err;
return nand_spl_load_image(offset, spl_image->size,
(void *)(ulong)spl_image->load_addr);
}
}
static int spl_nand_load_image(struct spl_image_info *spl_image,
struct spl_boot_device *bootdev)
{
int err;
struct image_header *header;
int *src __attribute__((unused));
int *dst __attribute__((unused));
#ifdef CONFIG_SPL_NAND_SOFTECC
debug("spl: nand - using sw ecc\n");
#else
debug("spl: nand - using hw ecc\n");
#endif
nand_init();
/*use CONFIG_SYS_TEXT_BASE as temporary storage area */
header = (struct image_header *)(CONFIG_SYS_TEXT_BASE);
#ifdef CONFIG_SPL_OS_BOOT
if (!spl_start_uboot()) {
/*
* load parameter image
* load to temp position since nand_spl_load_image reads
* a whole block which is typically larger than
* CONFIG_CMD_SPL_WRITE_SIZE therefore may overwrite
* following sections like BSS
*/
nand_spl_load_image(CONFIG_CMD_SPL_NAND_OFS,
CONFIG_CMD_SPL_WRITE_SIZE,
(void *)CONFIG_SYS_TEXT_BASE);
/* copy to destintion */
for (dst = (int *)CONFIG_SYS_SPL_ARGS_ADDR,
src = (int *)CONFIG_SYS_TEXT_BASE;
src < (int *)(CONFIG_SYS_TEXT_BASE +
CONFIG_CMD_SPL_WRITE_SIZE);
src++, dst++) {
writel(readl(src), dst);
}
/* load linux */
nand_spl_load_image(CONFIG_SYS_NAND_SPL_KERNEL_OFFS,
sizeof(*header), (void *)header);
err = spl_parse_image_header(spl_image, header);
if (err)
return err;
if (header->ih_os == IH_OS_LINUX) {
/* happy - was a linux */
err = nand_spl_load_image(
CONFIG_SYS_NAND_SPL_KERNEL_OFFS,
spl_image->size,
(void *)spl_image->load_addr);
nand_deselect();
return err;
} else {
puts("The Expected Linux image was not "
"found. Please check your NAND "
"configuration.\n");
puts("Trying to start u-boot now...\n");
}
}
#endif
#ifdef CONFIG_NAND_ENV_DST
spl_nand_load_element(spl_image, CONFIG_ENV_OFFSET, header);
#ifdef CONFIG_ENV_OFFSET_REDUND
spl_nand_load_element(spl_image, CONFIG_ENV_OFFSET_REDUND, header);
#endif
#endif
/* Load u-boot */
err = spl_nand_load_element(spl_image, CONFIG_SYS_NAND_U_BOOT_OFFS,
header);
#ifdef CONFIG_SYS_NAND_U_BOOT_OFFS_REDUND
#if CONFIG_SYS_NAND_U_BOOT_OFFS != CONFIG_SYS_NAND_U_BOOT_OFFS_REDUND
if (err)
err = spl_nand_load_element(spl_image,
CONFIG_SYS_NAND_U_BOOT_OFFS_REDUND,
header);
#endif
#endif
nand_deselect();
return err;
}
#endif
/* Use priorty 1 so that Ubi can override this */
SPL_LOAD_IMAGE_METHOD("NAND", 1, BOOT_DEVICE_NAND, spl_nand_load_image);
|
