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
|
/*
* (C) Copyright 2010-2016 Freescale Semiconductor, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
/* #define DEBUG */
#include <common.h>
#include <command.h>
#include <environment.h>
#include <linux/stddef.h>
#include <errno.h>
#include <memalign.h>
#include <sata.h>
#include <search.h>
#if defined(CONFIG_ENV_SIZE_REDUND) || defined(CONFIG_ENV_OFFSET_REDUND)
#error ENV REDUND not supported
#endif
#if !defined(CONFIG_ENV_OFFSET) || !defined(CONFIG_ENV_SIZE)
#error CONFIG_ENV_OFFSET or CONFIG_ENV_SIZE not defined
#endif
char *env_name_spec = "SATA";
DECLARE_GLOBAL_DATA_PTR;
__weak int sata_get_env_dev(void)
{
return CONFIG_SYS_SATA_ENV_DEV;
}
int env_init(void)
{
/* use default */
gd->env_addr = (ulong)&default_environment[0];
gd->env_valid = 1;
return 0;
}
#ifdef CONFIG_CMD_SAVEENV
static inline int write_env(struct blk_desc *sata, unsigned long size,
unsigned long offset, void *buffer)
{
uint blk_start, blk_cnt, n;
blk_start = ALIGN(offset, sata->blksz) / sata->blksz;
blk_cnt = ALIGN(size, sata->blksz) / sata->blksz;
n = blk_dwrite(sata, blk_start, blk_cnt, buffer);
return (n == blk_cnt) ? 0 : -1;
}
int saveenv(void)
{
ALLOC_CACHE_ALIGN_BUFFER(env_t, env_new, 1);
struct blk_desc *sata = NULL;
int env_sata, ret;
if (sata_initialize())
return 1;
env_sata = sata_get_env_dev();
sata = sata_get_dev(env_sata);
if (sata == NULL) {
printf("Unknown SATA(%d) device for environment!\n",
env_sata);
return 1;
}
ret = env_export(env_new);
if (ret)
return 1;
printf("Writing to SATA(%d)...", env_sata);
if (write_env(sata, CONFIG_ENV_SIZE, CONFIG_ENV_OFFSET, &env_new)) {
puts("failed\n");
return 1;
}
puts("done\n");
return 0;
}
#endif /* CONFIG_CMD_SAVEENV */
static inline int read_env(struct blk_desc *sata, unsigned long size,
unsigned long offset, void *buffer)
{
uint blk_start, blk_cnt, n;
blk_start = ALIGN(offset, sata->blksz) / sata->blksz;
blk_cnt = ALIGN(size, sata->blksz) / sata->blksz;
n = blk_dread(sata, blk_start, blk_cnt, buffer);
return (n == blk_cnt) ? 0 : -1;
}
void env_relocate_spec(void)
{
ALLOC_CACHE_ALIGN_BUFFER(char, buf, CONFIG_ENV_SIZE);
struct blk_desc *sata = NULL;
int env_sata;
if (sata_initialize())
return;
env_sata = sata_get_env_dev();
sata = sata_get_dev(env_sata);
if (sata == NULL) {
printf("Unknown SATA(%d) device for environment!\n",
env_sata);
return;
}
if (read_env(sata, CONFIG_ENV_SIZE, CONFIG_ENV_OFFSET, buf))
return set_default_env(NULL);
env_import(buf, 1);
}
|
