mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-12 14:23:00 +00:00
1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
121 lines
2.6 KiB
C
121 lines
2.6 KiB
C
/*
|
|
* (C) Copyright 2010 DENX Software Engineering
|
|
* Wolfgang Denk <wd@denx.de>
|
|
*
|
|
* (C) Copyright 2005-2009 Samsung Electronics
|
|
* Kyungmin Park <kyungmin.park@samsung.com>
|
|
*
|
|
* 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;
|
|
ssize_t len;
|
|
char *res;
|
|
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,
|
|
};
|
|
|
|
res = (char *)&env_new.data;
|
|
len = hexport_r(&env_htab, '\0', 0, &res, ENV_SIZE, 0, NULL);
|
|
if (len < 0) {
|
|
error("Cannot export environment: errno = %d\n", errno);
|
|
return 1;
|
|
}
|
|
env_new.crc = crc32(0, env_new.data, ENV_SIZE);
|
|
|
|
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;
|
|
}
|