static int env_sf_load(void)
{
int ret;
char *buf = NULL;
buf = (char *)memalign(ARCH_DMA_MINALIGN, CONFIG_ENV_SIZE);
if (!buf) {
set_default_env("!malloc() failed");
return -EIO;
}
ret = setup_flash_device();
if (ret)
goto out;
ret = spi_flash_read(env_flash,
CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, buf);
if (ret) {
set_default_env("!spi_flash_read() failed");
goto err_read;
}
ret = env_import(buf, 1);
if (!ret)
gd->env_valid = ENV_VALID;
err_read:
spi_flash_free(env_flash);
env_flash = NULL;
out:
free(buf);
return ret;
}
/*
* In case we have restarted u-boot there is a chance that buffer
* contains old environment (from the previous boot).
* If UBI volume is zero size, ubi_volume_read() doesn't modify the
* buffer.
* We need to clear buffer manually here, so the invalid CRC will
* cause setting default environment as expected.
*/
memset(env1_buf, 0x0, CONFIG_ENV_SIZE);
memset(env2_buf, 0x0, CONFIG_ENV_SIZE);
tmp_env1 = (env_t *)env1_buf;
tmp_env2 = (env_t *)env2_buf;
if (ubi_part(CONFIG_ENV_UBI_PART, NULL)) {
printf("\n** Cannot find mtd partition \"%s\"\n",
CONFIG_ENV_UBI_PART);
set_default_env(NULL);
return -EIO;
}
read1_fail = ubi_volume_read(CONFIG_ENV_UBI_VOLUME, (void *)tmp_env1,
CONFIG_ENV_SIZE);
if (read1_fail)
printf("\n** Unable to read env from %s:%s **\n",
CONFIG_ENV_UBI_PART, CONFIG_ENV_UBI_VOLUME);
read2_fail = ubi_volume_read(CONFIG_ENV_UBI_VOLUME_REDUND,
(void *)tmp_env2, CONFIG_ENV_SIZE);
if (read2_fail)
printf("\n** Unable to read redundant env from %s:%s **\n",
CONFIG_ENV_UBI_PART, CONFIG_ENV_UBI_VOLUME_REDUND);
return env_import_redund((char *)tmp_env1, read1_fail, (char *)tmp_env2,
read2_fail);
}
#else /* ! CONFIG_SYS_REDUNDAND_ENVIRONMENT */
static int env_ubi_load(void)
{
ALLOC_CACHE_ALIGN_BUFFER(char, buf, CONFIG_ENV_SIZE);
/*
* In case we have restarted u-boot there is a chance that buffer
* contains old environment (from the previous boot).
* If UBI volume is zero size, ubi_volume_read() doesn't modify the
* buffer.
* We need to clear buffer manually here, so the invalid CRC will
* cause setting default environment as expected.
*/
memset(buf, 0x0, CONFIG_ENV_SIZE);
if (ubi_part(CONFIG_ENV_UBI_PART, NULL)) {
printf("\n** Cannot find mtd partition \"%s\"\n",
CONFIG_ENV_UBI_PART);
set_default_env(NULL);
return -EIO;
}
if (ubi_volume_read(CONFIG_ENV_UBI_VOLUME, buf, CONFIG_ENV_SIZE)) {
printf("\n** Unable to read env from %s:%s **\n",
CONFIG_ENV_UBI_PART, CONFIG_ENV_UBI_VOLUME);
set_default_env(NULL);
return -EIO;
}
return env_import(buf, 1);
}
static void flash_env_relocate_spec(int workmode)
{
#if !defined(ENV_IS_EMBEDDED)
char buf[CONFIG_ENV_SIZE];
u32 start;
if((workmode & WORK_MODE_PRODUCT) && (!(workmode & WORK_MODE_UPDATE)))
{
flash_use_efex_env();
}
else
{
start = sunxi_partition_get_offset_byname(CONFIG_SUNXI_ENV_PARTITION);
if(!start){
printf("fail to find part named %s\n", CONFIG_SUNXI_ENV_PARTITION);
use_default();
return;
}
if(!sunxi_flash_read(start, CONFIG_ENV_SIZE/512, buf))
{
use_default();
return;
}
env_import(buf, 1);
}
#endif
}
void env_relocate_spec(void)
{
#if !defined(ENV_IS_EMBEDDED)
int crc1_ok = 0, crc2_ok = 0;
env_t *ep, *tmp_env1, *tmp_env2;
tmp_env1 = (env_t *)malloc(CONFIG_ENV_SIZE);
tmp_env2 = (env_t *)malloc(CONFIG_ENV_SIZE);
if (tmp_env1 == NULL || tmp_env2 == NULL) {
puts("Can't allocate buffers for environment\n");
set_default_env("!malloc() failed");
goto done;
}
if (readenv(CONFIG_ENV_OFFSET, (u_char *) tmp_env1))
puts("No Valid Environment Area found\n");
if (readenv(CONFIG_ENV_OFFSET_REDUND, (u_char *) tmp_env2))
puts("No Valid Redundant Environment Area found\n");
crc1_ok = crc32(0, tmp_env1->data, ENV_SIZE) == tmp_env1->crc;
crc2_ok = crc32(0, tmp_env2->data, ENV_SIZE) == tmp_env2->crc;
if (!crc1_ok && !crc2_ok) {
set_default_env("!bad CRC");
goto done;
} else if (crc1_ok && !crc2_ok) {
gd->env_valid = 1;
} else if (!crc1_ok && crc2_ok) {
gd->env_valid = 2;
} else {
/* both ok - check serial */
if (tmp_env1->flags == 255 && tmp_env2->flags == 0)
gd->env_valid = 2;
else if (tmp_env2->flags == 255 && tmp_env1->flags == 0)
gd->env_valid = 1;
else if (tmp_env1->flags > tmp_env2->flags)
gd->env_valid = 1;
else if (tmp_env2->flags > tmp_env1->flags)
gd->env_valid = 2;
else /* flags are equal - almost impossible */
gd->env_valid = 1;
}
free(env_ptr);
if (gd->env_valid == 1)
ep = tmp_env1;
else
ep = tmp_env2;
env_flags = ep->flags;
env_import((char *)ep, 0);
done:
free(tmp_env1);
free(tmp_env2);
#endif /* ! ENV_IS_EMBEDDED */
}
void spi_env_relocate_spec(void)
{
int ret;
env_t env_buf;
env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS,
CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE);
if (!env_flash)
goto err_probe;
ret = spi_flash_read(env_flash, CONFIG_ENV_IN_SPI_OFFSET, CONFIG_ENV_SIZE, &env_buf);
if (ret)
goto err_read;
env_import(&env_buf, 1);
gd->env_valid = 1;
return;
err_read:
spi_flash_free(env_flash);
env_flash = NULL;
err_probe:
//err_crc:
set_default_env("!bad CRC");
}
void env_relocate_spec(void)
{
char buf[CONFIG_ENV_SIZE];
int ret;
env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS,
CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE);
if (!env_flash) {
set_default_env("!spi_flash_probe() failed");
return;
}
ret = spi_flash_read(env_flash,
CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, buf);
if (ret) {
set_default_env("!spi_flash_read() failed");
goto out;
}
ret = env_import(buf, 1);
if (ret)
gd->env_valid = 1;
out:
spi_flash_free(env_flash);
env_flash = NULL;
}
void env_relocate_spec(void)
{
#if !defined(ENV_IS_EMBEDDED)
block_dev_desc_t *sata = NULL;
char buf[CONFIG_ENV_SIZE];
int ret;
if (sata_curr_device == -1) {
if (sata_initialize())
return;
sata_curr_device = CONFIG_SATA_ENV_DEV;
}
if (sata_curr_device >= CONFIG_SYS_SATA_MAX_DEVICE) {
printf("Unknown SATA(%d) device for environment!\n",
sata_curr_device);
return;
}
sata = sata_get_dev(sata_curr_device);
if (read_env(sata, CONFIG_ENV_SIZE, CONFIG_ENV_OFFSET, buf))
return use_default();
ret = env_import(buf, 1);
if (ret)
gd->env_valid = 1;
#endif
}
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);
}
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[0];
#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;
}
/* both ok - check serial */
if (tmp_env1->flags == 255 && tmp_env2->flags == 0)
gd->env_valid = 2;
else if (tmp_env2->flags == 255 && tmp_env1->flags == 0)
gd->env_valid = 1;
else if (tmp_env1->flags > tmp_env2->flags)
gd->env_valid = 1;
else if (tmp_env2->flags > tmp_env1->flags)
gd->env_valid = 2;
else /* flags are equal - almost impossible */
gd->env_valid = 1;
}
free(env_ptr);
if (gd->env_valid == 1)
ep = tmp_env1;
else
ep = tmp_env2;
env_flags = ep->flags;
env_import((char *)ep, 0);
ret = 0;
fini:
fini_mmc_for_env(mmc);
err:
if (ret)
set_default_env(NULL);
#endif
}
#else /* ! CONFIG_ENV_OFFSET_REDUND */
void env_relocate_spec(void)
{
#if !defined(ENV_IS_EMBEDDED)
ALLOC_CACHE_ALIGN_BUFFER(char, buf, CONFIG_ENV_SIZE);
struct mmc *mmc = find_mmc_device(CONFIG_SYS_MMC_ENV_DEV);
u32 offset;
int ret;
if (init_mmc_for_env(mmc)) {
ret = 1;
goto err;
}
if (mmc_get_env_addr(mmc, 0, &offset)) {
ret = 1;
goto fini;
}
if (read_env(mmc, CONFIG_ENV_SIZE, offset, buf)) {
ret = 1;
goto fini;
}
env_import(buf, 1);
ret = 0;
fini:
fini_mmc_for_env(mmc);
err:
if (ret)
set_default_env(NULL);
#endif
}
void env_relocate_spec(void)
{
#if !defined(ENV_IS_EMBEDDED)
char buf[CONFIG_ENV_SIZE];
struct mmc *mmc = find_mmc_device(CONFIG_SYS_MMC_ENV_DEV);
u32 offset;
if (init_mmc_for_env(mmc)) {
use_default();
return;
}
if(mmc_get_env_addr(mmc, &offset)) {
use_default();
return ;
}
if (read_env(mmc, CONFIG_ENV_SIZE, offset, buf)) {
use_default();
return;
}
env_import(buf, 1);
#endif
}
void env_relocate_spec(void)
{
int ret;
char *buf = NULL;
buf = (char *)memalign(ARCH_DMA_MINALIGN, CONFIG_ENV_SIZE);
env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS,
CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE);
if (!env_flash) {
set_default_env("!spi_flash_probe() failed");
if (buf)
free(buf);
return;
}
ret = spi_flash_read(env_flash,
CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, buf);
if (ret) {
set_default_env("!spi_flash_read() failed");
goto out;
}
ret = env_import(buf, 1);
if (ret)
gd->env_valid = 1;
out:
spi_flash_free(env_flash);
if (buf)
free(buf);
env_flash = NULL;
}
/*
* The legacy NAND code saved the environment in the first NAND
* device i.e., nand_dev_desc + 0. This is also the behaviour using
* the new NAND code.
*/
void env_relocate_spec (void)
{
#if !defined(ENV_IS_EMBEDDED)
int ret;
char buf[CONFIG_ENV_SIZE];
#if defined(CONFIG_ENV_OFFSET_OOB)
ret = get_nand_env_oob(&nand_info[0], &nand_env_oob_offset);
/*
* If unable to read environment offset from NAND OOB then fall through
* to the normal environment reading code below
*/
if (!ret) {
printf("Found Environment offset in OOB..\n");
} else {
set_default_env("!no env offset in OOB");
return;
}
#endif
ret = readenv(CONFIG_ENV_OFFSET, (u_char *)buf);
if (ret) {
set_default_env("!readenv() failed");
return;
}
env_import(buf, 1);
#endif /* ! ENV_IS_EMBEDDED */
}
void env_relocate_spec(void)
{
char buf[CONFIG_ENV_SIZE];
read_dataflash(CONFIG_ENV_ADDR, CONFIG_ENV_SIZE, buf);
env_import(buf, 1);
}
void env_relocate_spec(void)
{
char buf[CONFIG_ENV_SIZE];
#if defined(CONFIG_SYS_NVRAM_ACCESS_ROUTINE)
nvram_read(buf, CONFIG_ENV_ADDR, CONFIG_ENV_SIZE);
#else
memcpy(buf, (void*)CONFIG_ENV_ADDR, CONFIG_ENV_SIZE);
#endif
env_import(buf, 1);
}
void env_relocate_spec(void)
{
char *buf;
#if defined(CONFIG_SYS_NVRAM_ACCESS_ROUTINE)
buf = env_buf;
nvram_read(buf, CONFIG_ENV_ADDR, CONFIG_ENV_SIZE);
#else
buf = (void *)CONFIG_ENV_ADDR;
#endif
env_import(buf, 1);
}
void real_main (int argc, char *const argv[]) {
int i;
/* TODO: handle -i */
env_import ();
for (i = 1; i < argc && is_assignment (argv[i]); ++i)
env_parse_assignment (argv[i]);
if (i == argc)
env_print ();
else {
env_export ();
must_execvp (argv + i);
}
}
void env_relocate_spec(void)
{
char buf[CONFIG_ENV_SIZE];
unsigned int off = CONFIG_ENV_OFFSET;
#ifdef CONFIG_ENV_OFFSET_REDUND
if (gd->env_valid == 2)
off = CONFIG_ENV_OFFSET_REDUND;
#endif
eeprom_bus_read(CONFIG_SYS_DEF_EEPROM_ADDR,
off, (uchar *)buf, CONFIG_ENV_SIZE);
env_import(buf, 1);
}
void env_relocate_spec(void)
{
int ret;
char buf[CONFIG_ENV_SIZE];
env_t *tmp_env;
tmp_env = (env_t*)buf;
env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS,
CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE);
if (!env_flash) {
set_default_env("!spi_flash_probe() failed");
return;
}
ret = spi_flash_read(env_flash, CONFIG_ENV_OFFSET,
CONFIG_ENV_SIZE, tmp_env);
if (ret) {
set_default_env("!spi_flash_read() failed");
goto out;
}
if (crc32(0, tmp_env->data, ENV_SIZE) == tmp_env->crc) {
gd->env_valid = 1;
} else {
ret = spi_flash_read(env_flash, CONFIG_ENV_OFFSET_REDUND,
CONFIG_ENV_SIZE, tmp_env);
if (ret) {
set_default_env("!spi_flash_read() failed");
goto out;
}
if (crc32(0, tmp_env->data, ENV_SIZE) != tmp_env->crc) {
set_default_env("!both CRC failed");
goto out;
}
gd->env_valid = 2;
}
ret = env_import(buf, 0);
if (!ret) {
error("Cannot import environment: errno = %d\n", errno);
set_default_env("env_import failed");
}
out:
spi_flash_free(env_flash);
env_flash = NULL;
}
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, 0);
return -EIO;
}
void env_relocate_spec(void)
#endif
{
#if !defined(ENV_IS_EMBEDDED)
int ret;
ALLOC_CACHE_ALIGN_BUFFER(u_char, buf, CONFIG_ENV_SIZE);
ret = readenv(buf);
if (ret) {
set_default_env("!readenv() failed");
//saveenv();
return;
}
env_import((char *)buf, 1);
#endif /* ! ENV_IS_EMBEDDED */
}
void env_relocate_spec(void)
{
#ifdef CONFIG_ENV_ADDR_REDUND
if (gd->env_addr != (ulong)&(flash_addr->data)) {
env_t *etmp = flash_addr;
ulong ltmp = end_addr;
flash_addr = flash_addr_new;
flash_addr_new = etmp;
end_addr = end_addr_new;
end_addr_new = ltmp;
}
if (flash_addr_new->flags != OBSOLETE_FLAG &&
crc32(0, flash_addr_new->data, ENV_SIZE) ==
flash_addr_new->crc) {
char flag = OBSOLETE_FLAG;
gd->env_valid = 2;
flash_sect_protect(0, (ulong)flash_addr_new, end_addr_new);
flash_write(&flag,
(ulong)&(flash_addr_new->flags),
sizeof(flash_addr_new->flags));
flash_sect_protect(1, (ulong)flash_addr_new, end_addr_new);
}
if (flash_addr->flags != ACTIVE_FLAG &&
(flash_addr->flags & ACTIVE_FLAG) == ACTIVE_FLAG) {
char flag = ACTIVE_FLAG;
gd->env_valid = 2;
flash_sect_protect(0, (ulong)flash_addr, end_addr);
flash_write(&flag,
(ulong)&(flash_addr->flags),
sizeof(flash_addr->flags));
flash_sect_protect(1, (ulong)flash_addr, end_addr);
}
if (gd->env_valid == 2)
puts ("*** Warning - some problems detected "
"reading environment; recovered successfully\n\n");
#endif /* CONFIG_ENV_ADDR_REDUND */
env_import((char *)flash_addr, 1);
}
void env_relocate_spec(void)
{
char buf[CONFIG_ENV_SIZE];
block_dev_desc_t *dev_desc = NULL;
int dev = FAT_ENV_DEVICE;
int part = FAT_ENV_PART;
#ifdef CONFIG_MMC
if (strcmp (FAT_ENV_INTERFACE, "mmc") == 0) {
struct mmc *mmc = find_mmc_device(dev);
if (!mmc) {
printf("no mmc device at slot %x\n", dev);
set_default_env(NULL);
return;
}
mmc->has_init = 0;
mmc_init(mmc);
}
#endif /* CONFIG_MMC */
dev_desc = get_dev(FAT_ENV_INTERFACE, dev);
if (dev_desc == NULL) {
printf("Failed to find %s%d\n",
FAT_ENV_INTERFACE, dev);
set_default_env(NULL);
return;
}
if (fat_register_device(dev_desc, part) != 0) {
printf("Failed to register %s%d:%d\n",
FAT_ENV_INTERFACE, dev, part);
set_default_env(NULL);
return;
}
if (file_fat_read(FAT_ENV_FILE, (unsigned char *)&buf, CONFIG_ENV_SIZE) == -1) {
printf("\n** Unable to read \"%s\" from %s%d:%d **\n",
FAT_ENV_FILE, FAT_ENV_INTERFACE, dev, part);
set_default_env(NULL);
return;
}
env_import(buf, 1);
}
/* both ok - check serial */
if (tmp_env1->flags == 255 && tmp_env2->flags == 0)
gd->env_valid = 2;
else if (tmp_env2->flags == 255 && tmp_env1->flags == 0)
gd->env_valid = 1;
else if (tmp_env1->flags > tmp_env2->flags)
gd->env_valid = 1;
else if (tmp_env2->flags > tmp_env1->flags)
gd->env_valid = 2;
else /* flags are equal - almost impossible */
gd->env_valid = 1;
}
free(env_ptr);
if (gd->env_valid == 1)
ep = tmp_env1;
else
ep = tmp_env2;
env_flags = ep->flags;
env_import((char *)ep, 0);
ret = 0;
fini:
fini_mmc_for_env(mmc);
err:
if (ret)
set_default_env(errmsg);
#endif
}
#else /* ! CONFIG_ENV_OFFSET_REDUND */
void env_relocate_spec(void)
{
#if !defined(ENV_IS_EMBEDDED)
ALLOC_CACHE_ALIGN_BUFFER(char, buf, CONFIG_ENV_SIZE);
struct mmc *mmc;
u32 offset;
int ret;
int dev = mmc_get_env_dev();
const char *errmsg;
#ifdef CONFIG_SPL_BUILD
dev = 0;
#endif
mmc = find_mmc_device(dev);
errmsg = init_mmc_for_env(mmc);
if (errmsg) {
ret = 1;
goto err;
}
if (mmc_get_env_addr(mmc, 0, &offset)) {
ret = 1;
goto fini;
}
if (read_env(mmc, CONFIG_ENV_SIZE, offset, buf)) {
errmsg = "!read failed";
ret = 1;
goto fini;
}
env_import(buf, 1);
ret = 0;
fini:
fini_mmc_for_env(mmc);
err:
if (ret)
set_default_env(errmsg);
#endif
}
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;
}
void env_relocate_spec(void)
{
char buf[CONFIG_ENV_SIZE];
unsigned int err, rc;
err = mg_disk_init();
if (err) {
set_default_env("!mg_disk_init error");
return;
}
err = mg_disk_read(CONFIG_ENV_ADDR, buf, CONFIG_ENV_SIZE);
if (err) {
set_default_env("!mg_disk_read error");
return;
}
env_import(buf, 1);
}
void env_relocate_spec(void)
{
ulong buf[(CONFIG_ENV_SIZE + 511) / 128];
unsigned int err, rc;
err = init_sata(CONFIG_ENV_DEVICE);
if (err) {
set_default_env("!init_sata error");
return;
}
err = sata_read(CONFIG_ENV_DEVICE, CONFIG_ENV_ADDR, CONFIG_ENV_SIZE, buf);
if (err) {
set_default_env("!sata_read error");
return;
}
env_import(buf, 1);
}
int env_import_redund(const char *buf1, const char *buf2)
{
int crc1_ok, crc2_ok;
env_t *ep, *tmp_env1, *tmp_env2;
tmp_env1 = (env_t *)buf1;
tmp_env2 = (env_t *)buf2;
crc1_ok = crc32(0, tmp_env1->data, ENV_SIZE) ==
tmp_env1->crc;
crc2_ok = crc32(0, tmp_env2->data, ENV_SIZE) ==
tmp_env2->crc;
if (!crc1_ok && !crc2_ok) {
set_default_env("!bad CRC");
return 0;
} else if (crc1_ok && !crc2_ok) {
gd->env_valid = ENV_VALID;
} else if (!crc1_ok && crc2_ok) {
gd->env_valid = ENV_REDUND;
} else {
/* both ok - check serial */
if (tmp_env1->flags == 255 && tmp_env2->flags == 0)
gd->env_valid = ENV_REDUND;
else if (tmp_env2->flags == 255 && tmp_env1->flags == 0)
gd->env_valid = ENV_VALID;
else if (tmp_env1->flags > tmp_env2->flags)
gd->env_valid = ENV_VALID;
else if (tmp_env2->flags > tmp_env1->flags)
gd->env_valid = ENV_REDUND;
else /* flags are equal - almost impossible */
gd->env_valid = ENV_VALID;
}
if (gd->env_valid == ENV_VALID)
ep = tmp_env1;
else
ep = tmp_env2;
env_flags = ep->flags;
return env_import((char *)ep, 0);
}
/* both ok - check serial */
if (tmp_env1->flags == 255 && tmp_env2->flags == 0)
gd->env_valid = 2;
else if (tmp_env2->flags == 255 && tmp_env1->flags == 0)
gd->env_valid = 1;
else if (tmp_env1->flags > tmp_env2->flags)
gd->env_valid = 1;
else if (tmp_env2->flags > tmp_env1->flags)
gd->env_valid = 2;
else /* flags are equal - almost impossible */
gd->env_valid = 1;
}
if (gd->env_valid == 1)
ep = tmp_env1;
else
ep = tmp_env2;
env_flags = ep->flags;
env_import((char *)ep, 0);
}
#else /* ! CONFIG_SYS_REDUNDAND_ENVIRONMENT */
void env_relocate_spec(void)
{
ALLOC_CACHE_ALIGN_BUFFER(char, buf, CONFIG_ENV_SIZE);
if (ubi_part(CONFIG_ENV_UBI_PART, NULL)) {
printf("\n** Cannot find mtd partition \"%s\"\n",
CONFIG_ENV_UBI_PART);
set_default_env(NULL);
return;
}
if (ubi_volume_read(CONFIG_ENV_UBI_VOLUME, buf, CONFIG_ENV_SIZE)) {
printf("\n** Unable to read env from %s:%s **\n",
CONFIG_ENV_UBI_PART, CONFIG_ENV_UBI_VOLUME);
set_default_env(NULL);
return;
}
env_import(buf, 1);
}
void env_relocate_spec(void)
{
#if !defined(ENV_IS_EMBEDDED)
char buf[CONFIG_ENV_SIZE];
unsigned long offset;
struct mmc *mmc = find_mmc_device(CONFIG_SYS_MMC_ENV_DEV);
if (init_mmc_for_env(mmc)) {
use_default();
return;
}
offset = find_mmc_env_offset(mmc);
if (read_env(mmc, CONFIG_ENV_SIZE, offset, buf)) {
use_default();
return;
}
env_import(buf, 1);
#endif
}
