mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
114 lines
2.4 KiB
C
114 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2010 DENX Software Engineering
|
|
* Wolfgang Denk <wd@denx.de>
|
|
*
|
|
* (C) Copyright 2005-2009 Samsung Electronics
|
|
* Kyungmin Park <kyungmin.park@samsung.com>
|
|
*/
|
|
|
|
#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>
|
|
|
|
#define ONENAND_MAX_ENV_SIZE CONFIG_ENV_SIZE
|
|
#define ONENAND_ENV_SIZE(mtd) (ONENAND_MAX_ENV_SIZE - ENV_HEADER_SIZE)
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
static int env_onenand_load(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 = ENV_VALID;
|
|
|
|
return rc;
|
|
}
|
|
|
|
static int env_onenand_save(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;
|
|
}
|
|
|
|
U_BOOT_ENV_LOCATION(onenand) = {
|
|
.location = ENVL_ONENAND,
|
|
ENV_NAME("OneNAND")
|
|
.load = env_onenand_load,
|
|
.save = env_save_ptr(env_onenand_save),
|
|
};
|