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>
141 lines
3.1 KiB
C
141 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (c) Copyright 2011 by Tigris Elektronik GmbH
|
|
*
|
|
* Author:
|
|
* Maximilian Schwerin <mvs@tigris.de>
|
|
*/
|
|
|
|
#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 <fat.h>
|
|
#include <mmc.h>
|
|
|
|
#ifdef CONFIG_SPL_BUILD
|
|
/* TODO(sjg@chromium.org): Figure out why this is needed */
|
|
# if !defined(CONFIG_TARGET_AM335X_EVM) || defined(CONFIG_SPL_OS_BOOT)
|
|
# define LOADENV
|
|
# endif
|
|
#else
|
|
# define LOADENV
|
|
# if defined(CONFIG_CMD_SAVEENV)
|
|
# define CMD_SAVEENV
|
|
# endif
|
|
#endif
|
|
|
|
#ifdef CMD_SAVEENV
|
|
static int env_fat_save(void)
|
|
{
|
|
env_t __aligned(ARCH_DMA_MINALIGN) env_new;
|
|
struct blk_desc *dev_desc = NULL;
|
|
disk_partition_t info;
|
|
int dev, part;
|
|
int err;
|
|
loff_t size;
|
|
|
|
err = env_export(&env_new);
|
|
if (err)
|
|
return err;
|
|
|
|
part = blk_get_device_part_str(CONFIG_ENV_FAT_INTERFACE,
|
|
CONFIG_ENV_FAT_DEVICE_AND_PART,
|
|
&dev_desc, &info, 1);
|
|
if (part < 0)
|
|
return 1;
|
|
|
|
dev = dev_desc->devnum;
|
|
if (fat_set_blk_dev(dev_desc, &info) != 0) {
|
|
/*
|
|
* This printf is embedded in the messages from env_save that
|
|
* will calling it. The missing \n is intentional.
|
|
*/
|
|
printf("Unable to use %s %d:%d... ",
|
|
CONFIG_ENV_FAT_INTERFACE, dev, part);
|
|
return 1;
|
|
}
|
|
|
|
err = file_fat_write(CONFIG_ENV_FAT_FILE, (void *)&env_new, 0, sizeof(env_t),
|
|
&size);
|
|
if (err == -1) {
|
|
/*
|
|
* This printf is embedded in the messages from env_save that
|
|
* will calling it. The missing \n is intentional.
|
|
*/
|
|
printf("Unable to write \"%s\" from %s%d:%d... ",
|
|
CONFIG_ENV_FAT_FILE, CONFIG_ENV_FAT_INTERFACE, dev, part);
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
#endif /* CMD_SAVEENV */
|
|
|
|
#ifdef LOADENV
|
|
static int env_fat_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;
|
|
|
|
#ifdef CONFIG_MMC
|
|
if (!strcmp(CONFIG_ENV_FAT_INTERFACE, "mmc"))
|
|
mmc_initialize(NULL);
|
|
#endif
|
|
|
|
part = blk_get_device_part_str(CONFIG_ENV_FAT_INTERFACE,
|
|
CONFIG_ENV_FAT_DEVICE_AND_PART,
|
|
&dev_desc, &info, 1);
|
|
if (part < 0)
|
|
goto err_env_relocate;
|
|
|
|
dev = dev_desc->devnum;
|
|
if (fat_set_blk_dev(dev_desc, &info) != 0) {
|
|
/*
|
|
* This printf is embedded in the messages from env_save that
|
|
* will calling it. The missing \n is intentional.
|
|
*/
|
|
printf("Unable to use %s %d:%d... ",
|
|
CONFIG_ENV_FAT_INTERFACE, dev, part);
|
|
goto err_env_relocate;
|
|
}
|
|
|
|
err = file_fat_read(CONFIG_ENV_FAT_FILE, buf, CONFIG_ENV_SIZE);
|
|
if (err == -1) {
|
|
/*
|
|
* This printf is embedded in the messages from env_save that
|
|
* will calling it. The missing \n is intentional.
|
|
*/
|
|
printf("Unable to read \"%s\" from %s%d:%d... ",
|
|
CONFIG_ENV_FAT_FILE, CONFIG_ENV_FAT_INTERFACE, dev, part);
|
|
goto err_env_relocate;
|
|
}
|
|
|
|
return env_import(buf, 1);
|
|
|
|
err_env_relocate:
|
|
set_default_env(NULL);
|
|
|
|
return -EIO;
|
|
}
|
|
#endif /* LOADENV */
|
|
|
|
U_BOOT_ENV_LOCATION(fat) = {
|
|
.location = ENVL_FAT,
|
|
ENV_NAME("FAT")
|
|
#ifdef LOADENV
|
|
.load = env_fat_load,
|
|
#endif
|
|
#ifdef CMD_SAVEENV
|
|
.save = env_save_ptr(env_fat_save),
|
|
#endif
|
|
};
|