void env_relocate_spec(void)
{
DECLARE_GLOBAL_DATA_PTR;
unsigned long env_addr;
int use_default = 0;
int retlen;
env_addr = CFG_ENV_ADDR;
env_addr -= (unsigned long)onenand_chip.base;
/* Check OneNAND exist */
if (onenand_mtd.oobblock)
/* Ignore read fail */
onenand_read(&onenand_mtd, env_addr, onenand_mtd.oobblock,
&retlen, (u_char *) env_ptr);
else
onenand_mtd.oobblock = MAX_ONENAND_PAGESIZE;
if (crc32(0, env_ptr->data, ONENAND_ENV_SIZE(onenand_mtd)) !=
env_ptr->crc)
use_default = 1;
if (use_default) {
memcpy(env_ptr->data, default_environment,
ONENAND_ENV_SIZE(onenand_mtd));
env_ptr->crc =
crc32(0, env_ptr->data, ONENAND_ENV_SIZE(onenand_mtd));
}
gd->env_addr = (ulong) & env_ptr->data;
gd->env_valid = 1;
}
void env_relocate_spec(void)
{
unsigned long env_addr;
int use_default = 0;
size_t retlen;
env_addr = CFG_ENV_ADDR;
/* Check OneNAND exist */
if (onenand_mtd.writesize)
/* Ignore read fail */
onenand_read(&onenand_mtd, env_addr, onenand_mtd.writesize,
&retlen, (u_char *) env_ptr);
else
onenand_mtd.writesize = MAX_ONENAND_PAGESIZE;
if (crc32(0, env_ptr->data, ONENAND_ENV_SIZE(onenand_mtd)) !=
env_ptr->crc)
use_default = 1;
if (use_default) {
memcpy(env_ptr->data, default_environment,
ONENAND_ENV_SIZE(onenand_mtd));
env_ptr->crc =
crc32(0, env_ptr->data, ONENAND_ENV_SIZE(onenand_mtd));
}
gd->env_addr = (ulong) & env_ptr->data;
gd->env_valid = 1;
}
void env_relocate_spec_onenand(void)
{
struct mtd_info *onenand;
/* the following commands operate on the current device */
if (onenand_curr_device < 0 ||
onenand_curr_device >= CFG_MAX_ONENAND_DEVICE ||
!onenand_info[onenand_curr_device].name) {
puts("\nno devices available\n");
return 1;
}
onenand = &onenand_info[onenand_curr_device];
#if !defined(ENV_IS_EMBEDDED)
size_t total;
int ret, i;
u_char *data;
data = (u_char*)malloc(CFG_ENV_SIZE);
total = CFG_ENV_SIZE;
for (i = 0; i < CFG_MAX_NAND_DEVICE; i++) {
if (onenand_scan(&onenand_info[i], 1) == 0) {
ret = onenand_read(onenand, CFG_ENV_OFFSET, &total, (u_char*)data);
env_ptr = data;
if (ret || total != CFG_ENV_SIZE)
return use_default();
if (crc32(0, env_ptr->data, ENV_SIZE) != env_ptr->crc)
return use_default();
} else {
printf("no devices available\n");
return use_default();
}
}
/*
*/
#endif /* ! ENV_IS_EMBEDDED */
}
int do_onenand(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
int ret = 0;
switch (argc) {
case 0:
case 1:
printf("Usage:\n%s\n", cmdtp->usage);
return 1;
case 2:
onenand_print_device_info(onenand_chip.device_id, 1);
return 0;
default:
/* At least 4 args */
if (strncmp(argv[1], "erase", 5) == 0) {
struct erase_info instr;
ulong start, end;
char *endtail;
ulong block;
if (strncmp(argv[2], "block", 5) == 0) {
start = simple_strtoul(argv[3], NULL, 10);
endtail = strchr(argv[3], '-');
end = simple_strtoul(endtail+1, NULL, 10);
} else {
start = simple_strtoul(argv[2], NULL, 10);
end = simple_strtoul(argv[3], NULL, 10);
start -= (unsigned long) onenand_chip.base;
end -= (unsigned long) onenand_chip.base;
}
if (!end || end < 0)
end = start;
printf("Erase block from %d to %d\n", start, end);
for (block = start; block <= end; block++) {
instr.addr = block << onenand_chip.erase_shift;
instr.len = 1 << onenand_chip.erase_shift;
ret = onenand_erase(&onenand_mtd, &instr);
if (ret) {
printf("erase failed %d\n", block);
break;
}
}
return 0;
}
if (strncmp(argv[1], "read", 4) == 0) {
ulong addr = simple_strtoul(argv[2], NULL, 16);
ulong ofs = simple_strtoul(argv[3], NULL, 16);
size_t len = simple_strtoul(argv[4], NULL, 16);
size_t retlen = 0;
int oob = strncmp(argv[1], "read.oob", 8) ? 0 : 1;
if (oob)
onenand_read_oob(&onenand_mtd, ofs, len, &retlen, (u_char *) addr);
else
onenand_read(&onenand_mtd, ofs, len, &retlen, (u_char *) addr);
printf("Done\n");
return 0;
}
if (strncmp(argv[1], "write", 5) == 0) {
int ret ;
ulong addr = simple_strtoul(argv[2], NULL, 16);
ulong ofs = simple_strtoul(argv[3], NULL, 16);
size_t len = simple_strtoul(argv[4], NULL, 16);
size_t retlen = 0;
printf("onenadwrite: addr = 0x%x, ofs = 0x%x, len = 0x%x\n", addr, ofs, len);
ret = onenand_write(&onenand_mtd, ofs, len, &retlen, (u_char *) addr);
if (ret)
printf("Error writing oneNAND: ret = %d\n", ret);
else
printf("Done. ret = %d\n", ret);
return 0;
}
if (strncmp(argv[1], "block", 5) == 0) {
ulong addr = simple_strtoul(argv[2], NULL, 16);
ulong block = simple_strtoul(argv[3], NULL, 10);
ulong page = simple_strtoul(argv[4], NULL, 10);
size_t len = simple_strtol(argv[5], NULL, 10);
size_t retlen = 0;
ulong ofs;
int oob = strncmp(argv[1], "block.oob", 9) ? 0 : 1;
ofs = block << onenand_chip.erase_shift;
if (page)
ofs += page << onenand_chip.page_shift;
if (!len) {
if (oob)
len = 64;
else
len = 512;
}
if (oob)
onenand_read_oob(&onenand_mtd, ofs, len, &retlen, (u_char *) addr);
else
onenand_read(&onenand_mtd, ofs, len, &retlen, (u_char *) addr);
return 0;
}
if (strncmp(argv[1], "unlock", 6) == 0) {
ulong start = simple_strtoul(argv[2], NULL, 10);
ulong ofs = simple_strtoul(argv[3], NULL, 10);
if (!ofs)
ofs = (1 << onenand_chip.erase_shift);
start = start << onenand_chip.erase_shift;
printf("start = 0x%08x, ofs = 0x%08x\n",
start, ofs);
onenand_unlock(&onenand_mtd, start, start + ofs);
return 0;
}
if (strncmp(argv[1], "save", 4) == 0 &&
strncmp(argv[2], "bootloader", 10) == 0) {
ulong addr = simple_strtoul(argv[3], NULL, 16);
struct erase_info instr;
int ofs = 0;
int len = 0x20000;
size_t retlen;
printf("save bootloader...\n");
if (!addr)
break;
onenand_unlock(&onenand_mtd, ofs, len);
instr.addr = 0 << onenand_chip.erase_shift;
instr.len = 1 << onenand_chip.erase_shift;
onenand_erase(&onenand_mtd, &instr);
onenand_write(&onenand_mtd, ofs, len, &retlen, (u_char *) addr);
onenand_unlock(&onenand_mtd, CFG_ENV_ADDR, onenand_mtd.size - CFG_ENV_ADDR);
return 0;
}
break;
}
return 0;
}
int saveenv_onenand(void)
{
size_t total;
int ret = 0, i;
u32 erasebase;
u32 eraselength;
u32 eraseblock;
u32 erasesize = onenand_info[0].erasesize;
uint8_t *data;
struct mtd_info *onenand;
puts("Erasing Onenand...\n");
/* the following commands operate on the current device */
if (onenand_curr_device < 0 ||
onenand_curr_device >= CFG_MAX_ONENAND_DEVICE ||
!onenand_info[onenand_curr_device].name) {
puts("\nno devices available\n");
return 1;
}
onenand = &onenand_info[onenand_curr_device];
/* If the value of CFG_ENV_OFFSET is not a NAND block boundary, the
* NAND erase operation will fail. So first check if the CFG_ENV_OFFSET
* is equal to a NAND block boundary
*/
if ((CFG_ENV_OFFSET % (erasesize - 1)) != 0 ) {
/* CFG_ENV_OFFSET is not equal to block boundary address. So, read
* the read the NAND block (in which ENV has to be stored), and
* copy the ENV data into the copied block data.
*/
/* Step 1: Find out the starting address of the NAND block to
* be erased. Also allocate memory whose size is equal to tbe
* NAND block size (NAND erasesize).
*/
eraseblock = CFG_ENV_OFFSET / erasesize;
erasebase = eraseblock * erasesize;
printf("the baseaddr is 0x%08x ...\n", erasebase);
data = (uint8_t*)malloc(erasesize);
if (data == NULL) {
printf("Could not save enviroment variables\n");
return 1;
}
/* Step 2: Read the NAND block into which the ENV data has
* to be copied
*/
total = erasesize;
printf("the total is 0x%08x ...\n", total);
for (i = 0; i < CFG_MAX_NAND_DEVICE; i++) {
if (onenand_scan(&onenand_info[i], 1) == 0) {
ret = onenand_read(onenand, erasebase, &total, data);
} else {
printf("no devices available\n");
return 1;
}
}
if (ret || total != erasesize) {
printf("Could not save enviroment variables %d\n",ret);
return 1;
}
/* Step 3: Copy the ENV data into the local copy of the block
* contents.
*/
memcpy((data + (CFG_ENV_OFFSET - erasebase)), (void*)env_ptr, CFG_ENV_SIZE);
} else {
/* CFG_ENV_OFFSET is equal to a NAND block boundary. So
* no special care is required when erasing and writing NAND
* block
*/
data = env_ptr;
erasebase = CFG_ENV_OFFSET;
erasesize = CFG_ENV_SIZE;
}
/* Erase the NAND block which will hold the ENV data */
if (onenand_erase(onenand, erasebase, erasesize))
return 1;
puts("Writing to onenand... \n");
total = erasesize;
/* Write the ENV data to the NAND block */
printf("the baseaddr is 0x%08x ...\n", erasebase);
printf("the baseaddr is 0x%08x ...\n", total);
ret = onenand_write(onenand, erasebase, &total, (u_char*)data);
if (ret || total != erasesize) {
printf("Could not save enviroment variables\n");
return 1;
}
if ((CFG_ENV_OFFSET % (erasesize - 1)) != 0 )
free(data);
puts("Saved enviroment variables\n");
return ret;
return 1;
}
