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git.ipfire.org Git - people/ms/u-boot.git/blob - common/env_onenand.c
2 * (C) Copyright 2010 DENX Software Engineering
3 * Wolfgang Denk <wd@denx.de>
5 * (C) Copyright 2005-2009 Samsung Electronics
6 * Kyungmin Park <kyungmin.park@samsung.com>
8 * SPDX-License-Identifier: GPL-2.0+
13 #include <environment.h>
14 #include <linux/stddef.h>
18 #include <onenand_uboot.h>
20 #include <linux/compat.h>
21 #include <linux/mtd/mtd.h>
22 #include <linux/mtd/onenand.h>
24 char *env_name_spec
= "OneNAND";
26 #define ONENAND_MAX_ENV_SIZE CONFIG_ENV_SIZE
27 #define ONENAND_ENV_SIZE(mtd) (ONENAND_MAX_ENV_SIZE - ENV_HEADER_SIZE)
29 DECLARE_GLOBAL_DATA_PTR
;
31 void env_relocate_spec(void)
33 struct mtd_info
*mtd
= &onenand_mtd
;
34 #ifdef CONFIG_ENV_ADDR_FLEX
35 struct onenand_chip
*this = &onenand_chip
;
39 #ifdef ENV_IS_EMBEDDED
40 char *buf
= (char *)&environment
;
42 loff_t env_addr
= CONFIG_ENV_ADDR
;
43 char onenand_env
[ONENAND_MAX_ENV_SIZE
];
44 char *buf
= (char *)&onenand_env
[0];
45 #endif /* ENV_IS_EMBEDDED */
47 #ifndef ENV_IS_EMBEDDED
48 # ifdef CONFIG_ENV_ADDR_FLEX
49 if (FLEXONENAND(this))
50 env_addr
= CONFIG_ENV_ADDR_FLEX
;
52 /* Check OneNAND exist */
54 /* Ignore read fail */
55 mtd_read(mtd
, env_addr
, ONENAND_MAX_ENV_SIZE
,
56 &retlen
, (u_char
*)buf
);
58 mtd
->writesize
= MAX_ONENAND_PAGESIZE
;
59 #endif /* !ENV_IS_EMBEDDED */
61 rc
= env_import(buf
, 1);
70 struct mtd_info
*mtd
= &onenand_mtd
;
71 #ifdef CONFIG_ENV_ADDR_FLEX
72 struct onenand_chip
*this = &onenand_chip
;
74 loff_t env_addr
= CONFIG_ENV_ADDR
;
76 struct erase_info instr
= {
80 ret
= env_export(&env_new
);
84 instr
.len
= CONFIG_ENV_SIZE
;
85 #ifdef CONFIG_ENV_ADDR_FLEX
86 if (FLEXONENAND(this)) {
87 env_addr
= CONFIG_ENV_ADDR_FLEX
;
88 instr
.len
= CONFIG_ENV_SIZE_FLEX
;
89 instr
.len
<<= onenand_mtd
.eraseregions
[0].numblocks
== 1 ?
93 instr
.addr
= env_addr
;
95 if (mtd_erase(mtd
, &instr
)) {
96 printf("OneNAND: erase failed at 0x%08llx\n", env_addr
);
100 if (mtd_write(mtd
, env_addr
, ONENAND_MAX_ENV_SIZE
, &retlen
,
101 (u_char
*)&env_new
)) {
102 printf("OneNAND: write failed at 0x%llx\n", instr
.addr
);
112 gd
->env_addr
= (ulong
)&default_environment
[0];