void env_relocate_spec(void)
{
char buf[CONFIG_ENV_SIZE];
block_dev_desc_t *dev_desc = NULL;
disk_partition_t info;
int dev, part;
int err;
part = get_device_and_partition(FAT_ENV_INTERFACE,
FAT_ENV_DEVICE_AND_PART,
&dev_desc, &info, 1);
if (part < 0)
goto err_env_relocate;
dev = dev_desc->dev;
if (fat_set_blk_dev(dev_desc, &info) != 0) {
printf("\n** Unable to use %s %d:%d for loading the env **\n",
FAT_ENV_INTERFACE, dev, part);
goto err_env_relocate;
}
err = file_fat_read(FAT_ENV_FILE, (uchar *)&buf, CONFIG_ENV_SIZE);
if (err == -1) {
printf("\n** Unable to read \"%s\" from %s%d:%d **\n",
FAT_ENV_FILE, FAT_ENV_INTERFACE, dev, part);
goto err_env_relocate;
}
env_import(buf, 1);
return;
err_env_relocate:
set_default_env(NULL);
}
int saveenv(void)
{
env_t env_new;
block_dev_desc_t *dev_desc = NULL;
disk_partition_t info;
int dev, part;
int err;
err = env_export(&env_new);
if (err)
return err;
part = get_device_and_partition(FAT_ENV_INTERFACE,
FAT_ENV_DEVICE_AND_PART,
&dev_desc, &info, 1);
if (part < 0)
return 1;
dev = dev_desc->dev;
if (fat_set_blk_dev(dev_desc, &info) != 0) {
printf("\n** Unable to use %s %d:%d for saveenv **\n",
FAT_ENV_INTERFACE, dev, part);
return 1;
}
err = file_fat_write(FAT_ENV_FILE, (void *)&env_new, sizeof(env_t));
if (err == -1) {
printf("\n** Unable to write \"%s\" from %s%d:%d **\n",
FAT_ENV_FILE, FAT_ENV_INTERFACE, dev, part);
return 1;
}
puts("done\n");
return 0;
}
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;
}
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;
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;
}
static int do_fat_fswrite(cmd_tbl_t *cmdtp, int flag,
int argc, char * const argv[])
{
long size;
unsigned long addr;
unsigned long count;
block_dev_desc_t *dev_desc = NULL;
disk_partition_t info;
int dev = 0;
int part = 1;
void *buf;
if (argc < 5)
return cmd_usage(cmdtp);
part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1);
if (part < 0)
return 1;
dev = dev_desc->dev;
if (fat_set_blk_dev(dev_desc, &info) != 0) {
printf("\n** Unable to use %s %d:%d for fatwrite **\n",
argv[1], dev, part);
return 1;
}
addr = simple_strtoul(argv[3], NULL, 16);
count = simple_strtoul(argv[5], NULL, 16);
buf = map_sysmem(addr, count);
size = file_fat_write(argv[4], buf, count);
unmap_sysmem(buf);
if (size == -1) {
printf("\n** Unable to write \"%s\" from %s %d:%d **\n",
argv[4], argv[1], dev, part);
return 1;
}
printf("%ld bytes written\n", size);
return 0;
}
static int do_fat_fsinfo(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
int dev, part;
block_dev_desc_t *dev_desc;
disk_partition_t info;
if (argc < 2) {
printf("usage: fatinfo <interface> [<dev[:part]>]\n");
return 0;
}
part = get_device_and_partition(argv[1], argv[2], &dev_desc, &info, 1);
if (part < 0)
return 1;
dev = dev_desc->dev;
if (fat_set_blk_dev(dev_desc, &info) != 0) {
printf("\n** Unable to use %s %d:%d for fatinfo **\n",
argv[1], dev, part);
return 1;
}
return file_fat_detectfs();
}