-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathenv_onenand.c
116 lines (101 loc) · 2.4 KB
/
env_onenand.c
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
/*
* (C) Copyright 2010 DENX Software Engineering
* Wolfgang Denk <[email protected]>
*
* (C) Copyright 2005-2009 Samsung Electronics
* Kyungmin Park <[email protected]>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <command.h>
#include <environment.h>
#include <linux/stddef.h>
#include <malloc.h>
#include <search.h>
#include <errno.h>
#include <onenand_uboot.h>
#include <linux/compat.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/onenand.h>
char *env_name_spec = "OneNAND";
#define ONENAND_MAX_ENV_SIZE CONFIG_ENV_SIZE
#define ONENAND_ENV_SIZE(mtd) (ONENAND_MAX_ENV_SIZE - ENV_HEADER_SIZE)
DECLARE_GLOBAL_DATA_PTR;
void env_relocate_spec(void)
{
struct mtd_info *mtd = &onenand_mtd;
#ifdef CONFIG_ENV_ADDR_FLEX
struct onenand_chip *this = &onenand_chip;
#endif
int rc;
size_t retlen;
#ifdef ENV_IS_EMBEDDED
char *buf = (char *)&environment;
#else
loff_t env_addr = CONFIG_ENV_ADDR;
char onenand_env[ONENAND_MAX_ENV_SIZE];
char *buf = (char *)&onenand_env[0];
#endif /* ENV_IS_EMBEDDED */
#ifndef ENV_IS_EMBEDDED
# ifdef CONFIG_ENV_ADDR_FLEX
if (FLEXONENAND(this))
env_addr = CONFIG_ENV_ADDR_FLEX;
# endif
/* Check OneNAND exist */
if (mtd->writesize)
/* Ignore read fail */
mtd_read(mtd, env_addr, ONENAND_MAX_ENV_SIZE,
&retlen, (u_char *)buf);
else
mtd->writesize = MAX_ONENAND_PAGESIZE;
#endif /* !ENV_IS_EMBEDDED */
rc = env_import(buf, 1);
if (rc)
gd->env_valid = 1;
}
int saveenv(void)
{
env_t env_new;
int ret;
struct mtd_info *mtd = &onenand_mtd;
#ifdef CONFIG_ENV_ADDR_FLEX
struct onenand_chip *this = &onenand_chip;
#endif
loff_t env_addr = CONFIG_ENV_ADDR;
size_t retlen;
struct erase_info instr = {
.callback = NULL,
};
ret = env_export(&env_new);
if (ret)
return ret;
instr.len = CONFIG_ENV_SIZE;
#ifdef CONFIG_ENV_ADDR_FLEX
if (FLEXONENAND(this)) {
env_addr = CONFIG_ENV_ADDR_FLEX;
instr.len = CONFIG_ENV_SIZE_FLEX;
instr.len <<= onenand_mtd.eraseregions[0].numblocks == 1 ?
1 : 0;
}
#endif
instr.addr = env_addr;
instr.mtd = mtd;
if (mtd_erase(mtd, &instr)) {
printf("OneNAND: erase failed at 0x%08llx\n", env_addr);
return 1;
}
if (mtd_write(mtd, env_addr, ONENAND_MAX_ENV_SIZE, &retlen,
(u_char *)&env_new)) {
printf("OneNAND: write failed at 0x%llx\n", instr.addr);
return 2;
}
return 0;
}
int env_init(void)
{
/* use default */
gd->env_addr = (ulong)&default_environment[0];
gd->env_valid = 1;
return 0;
}