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>
133 lines
2.8 KiB
C
133 lines
2.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (c) Copyright 2016 by VRT Technology
|
|
*
|
|
* Author:
|
|
* Stuart Longland <stuartl@vrt.com.au>
|
|
*
|
|
* Based on FAT environment driver
|
|
* (c) Copyright 2011 by Tigris Elektronik GmbH
|
|
*
|
|
* Author:
|
|
* Maximilian Schwerin <mvs@tigris.de>
|
|
*
|
|
* and EXT4 filesystem implementation
|
|
* (C) Copyright 2011 - 2012 Samsung Electronics
|
|
* EXT4 filesystem implementation in Uboot by
|
|
* Uma Shankar <uma.shankar@samsung.com>
|
|
* Manjunatha C Achar <a.manjunatha@samsung.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
|
|
#include <command.h>
|
|
#include <environment.h>
|
|
#include <linux/stddef.h>
|
|
#include <malloc.h>
|
|
#include <memalign.h>
|
|
#include <search.h>
|
|
#include <errno.h>
|
|
#include <ext4fs.h>
|
|
#include <mmc.h>
|
|
|
|
#ifdef CONFIG_CMD_SAVEENV
|
|
static int env_ext4_save(void)
|
|
{
|
|
env_t env_new;
|
|
struct blk_desc *dev_desc = NULL;
|
|
disk_partition_t info;
|
|
int dev, part;
|
|
int err;
|
|
|
|
err = env_export(&env_new);
|
|
if (err)
|
|
return err;
|
|
|
|
part = blk_get_device_part_str(CONFIG_ENV_EXT4_INTERFACE,
|
|
CONFIG_ENV_EXT4_DEVICE_AND_PART,
|
|
&dev_desc, &info, 1);
|
|
if (part < 0)
|
|
return 1;
|
|
|
|
dev = dev_desc->devnum;
|
|
ext4fs_set_blk_dev(dev_desc, &info);
|
|
|
|
if (!ext4fs_mount(info.size)) {
|
|
printf("\n** Unable to use %s %s for saveenv **\n",
|
|
CONFIG_ENV_EXT4_INTERFACE,
|
|
CONFIG_ENV_EXT4_DEVICE_AND_PART);
|
|
return 1;
|
|
}
|
|
|
|
err = ext4fs_write(CONFIG_ENV_EXT4_FILE, (void *)&env_new,
|
|
sizeof(env_t));
|
|
ext4fs_close();
|
|
|
|
if (err == -1) {
|
|
printf("\n** Unable to write \"%s\" from %s%d:%d **\n",
|
|
CONFIG_ENV_EXT4_FILE, CONFIG_ENV_EXT4_INTERFACE, dev,
|
|
part);
|
|
return 1;
|
|
}
|
|
|
|
puts("done\n");
|
|
return 0;
|
|
}
|
|
#endif /* CONFIG_CMD_SAVEENV */
|
|
|
|
static int env_ext4_load(void)
|
|
{
|
|
ALLOC_CACHE_ALIGN_BUFFER(char, buf, CONFIG_ENV_SIZE);
|
|
struct blk_desc *dev_desc = NULL;
|
|
disk_partition_t info;
|
|
int dev, part;
|
|
int err;
|
|
loff_t off;
|
|
|
|
#ifdef CONFIG_MMC
|
|
if (!strcmp(CONFIG_ENV_EXT4_INTERFACE, "mmc"))
|
|
mmc_initialize(NULL);
|
|
#endif
|
|
|
|
part = blk_get_device_part_str(CONFIG_ENV_EXT4_INTERFACE,
|
|
CONFIG_ENV_EXT4_DEVICE_AND_PART,
|
|
&dev_desc, &info, 1);
|
|
if (part < 0)
|
|
goto err_env_relocate;
|
|
|
|
dev = dev_desc->devnum;
|
|
ext4fs_set_blk_dev(dev_desc, &info);
|
|
|
|
if (!ext4fs_mount(info.size)) {
|
|
printf("\n** Unable to use %s %s for loading the env **\n",
|
|
CONFIG_ENV_EXT4_INTERFACE,
|
|
CONFIG_ENV_EXT4_DEVICE_AND_PART);
|
|
goto err_env_relocate;
|
|
}
|
|
|
|
err = ext4_read_file(CONFIG_ENV_EXT4_FILE, buf, 0, CONFIG_ENV_SIZE,
|
|
&off);
|
|
ext4fs_close();
|
|
|
|
if (err == -1) {
|
|
printf("\n** Unable to read \"%s\" from %s%d:%d **\n",
|
|
CONFIG_ENV_EXT4_FILE, CONFIG_ENV_EXT4_INTERFACE, dev,
|
|
part);
|
|
goto err_env_relocate;
|
|
}
|
|
|
|
return env_import(buf, 1);
|
|
|
|
err_env_relocate:
|
|
set_default_env(NULL);
|
|
|
|
return -EIO;
|
|
}
|
|
|
|
U_BOOT_ENV_LOCATION(ext4) = {
|
|
.location = ENVL_EXT4,
|
|
ENV_NAME("EXT4")
|
|
.load = env_ext4_load,
|
|
.save = env_save_ptr(env_ext4_save),
|
|
};
|