static int write_to_ptn(struct fastboot_ptentry *ptn, unsigned int addr, unsigned int size)
#if defined(CFG_FASTBOOT_ONENANDBSP) || defined(CFG_FASTBOOT_NANDBSP)
{
int ret = 1;
char start[32], length[32];
char wstart[32], wlength[32], wbuffer[32];
char write_type[32];
/* do_nand and do_onenand do not check argv[0] */
char *argv_erase[5] = { NULL, "erase", NULL, NULL, NULL, };
char *argv_write[6] = { NULL, NULL, NULL, NULL, NULL, NULL, };
argv_erase[2] = start;
argv_erase[3] = length;
argv_write[1] = write_type;
argv_write[2] = wbuffer;
argv_write[3] = wstart;
argv_write[4] = wlength;
printf("flashing '%s'\n", ptn->name);
sprintf(start, "0x%x", ptn->start);
if (ptn->length == 0)
{
CFG_FASTBOOT_FLASHCMD(NULL, 0, 3, argv_erase);
}
else
{
sprintf(length, "0x%x", ptn->length);
CFG_FASTBOOT_FLASHCMD(NULL, 0, 4, argv_erase);
}
/* Which flavor of write to use */
if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_YAFFS)
{
sprintf(write_type, "write.yaffs");
sprintf(wlength, "0x%x", size);
}
else
{
sprintf(write_type, "write");
if (interface.nand_block_size &&
(size % interface.nand_block_size))
{
size = (size + interface.nand_block_size - 1)
/ interface.nand_block_size * interface.nand_block_size;
}
sprintf(wlength, "0x%x", size);
}
sprintf(wbuffer, "0x%x", addr);
sprintf(wstart, "0x%x", ptn->start);
ret = CFG_FASTBOOT_FLASHCMD(NULL, 0, 5, argv_write);
#if 0
if (0 == repeat) {
if (ret) /* failed */
save_block_values(ptn, 0, 0);
else /* success */
save_block_values(ptn, ptn->start, download_bytes);
}
#endif
return ret;
}
static int write_to_ptn(struct fastboot_ptentry *ptn)
{
int ret = 1;
char start[32], length[32];
char wstart[32], wlength[32], addr[32];
char ecc_type[32], write_type[32];
int repeat, repeat_max;
char *lock[5] = { "nand", "lock", NULL, NULL, NULL, };
char *unlock[5] = { "nand", "unlock", NULL, NULL, NULL, };
char *write[6] = { "nand", "write", NULL, NULL, NULL, NULL, };
char *ecc[4] = { "nand", "ecc", NULL, NULL, };
char *erase[5] = { "nand", "erase", NULL, NULL, NULL, };
lock[2] = unlock[2] = erase[2] = start;
lock[3] = unlock[3] = erase[3] = length;
write[1] = write_type;
write[2] = addr;
write[3] = wstart;
write[4] = wlength;
printf("flashing '%s'\n", ptn->name);
/* Which flavor of write to use */
if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_I)
sprintf(write_type, "write.i");
#ifdef CFG_NAND_YAFFS_WRITE
else if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_YAFFS)
sprintf(write_type, "write.yaffs");
#endif
else
sprintf(write_type, "write");
/* Some flashing requires the nand's ecc to be set */
ecc[2] = ecc_type;
if ((ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_HW_ECC) &&
(ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_SW_ECC)) {
/* Both can not be true */
printf("Warning can not do hw and sw ecc for partition '%s'\n",
ptn->name);
printf("Ignoring these flags\n");
} else if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_HW_ECC) {
sprintf(ecc_type, "hw");
#if 0
do_nand(NULL, 0, 3, ecc);
#endif
} else if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_SW_ECC) {
sprintf(ecc_type, "sw");
#if 0
do_nand(NULL, 0, 3, ecc);
#endif
}
/* Some flashing requires writing the same data in multiple,
consecutive flash partitions */
repeat_max = 1;
if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_REPEAT_MASK) {
if (ptn->flags &
FASTBOOT_PTENTRY_FLAGS_WRITE_CONTIGUOUS_BLOCK) {
printf("Warning can not do both 'contiguous block' and 'repeat' writes for for partition '%s'\n", ptn->name);
printf("Ignoring repeat flag\n");
} else {
repeat_max = ptn->flags &
FASTBOOT_PTENTRY_FLAGS_REPEAT_MASK;
}
}
/* Unlock the whole partition instead of trying to
manage special cases */
sprintf(length, "0x%x", ptn->length * repeat_max);
for (repeat = 0; repeat < repeat_max; repeat++) {
sprintf(start, "0x%x", ptn->start + (repeat * ptn->length));
#if 0
do_nand(NULL, 0, 4, unlock);
do_nand(NULL, 0, 4, erase);
#endif
if ((ptn->flags &
FASTBOOT_PTENTRY_FLAGS_WRITE_NEXT_GOOD_BLOCK) &&
(ptn->flags &
FASTBOOT_PTENTRY_FLAGS_WRITE_CONTIGUOUS_BLOCK)) {
/* Both can not be true */
printf("Warning can not do 'next good block' and 'contiguous block' for partition '%s'\n", ptn->name);
printf("Ignoring these flags\n");
} else if (ptn->flags &
FASTBOOT_PTENTRY_FLAGS_WRITE_NEXT_GOOD_BLOCK) {
/* Keep writing until you get a good block
transfer_buffer should already be aligned */
if (interface.nand_block_size) {
unsigned int blocks = download_bytes /
interface.nand_block_size;
unsigned int i = 0;
unsigned int offset = 0;
sprintf(wlength, "0x%x",
interface.nand_block_size);
while (i < blocks) {
/* Check for overflow */
if (offset >= ptn->length)
break;
/* download's address only advance
if last write was successful */
sprintf(addr, "0x%x",
interface.transfer_buffer +
(i * interface.nand_block_size));
/* nand's address always advances */
sprintf(wstart, "0x%x",
ptn->start + (repeat * ptn->length) + offset);
#if 0
ret = do_nand(NULL, 0, 5, write);
#endif
if (ret)
break;
else
i++;
/* Go to next nand block */
offset += interface.nand_block_size;
}
} else {
printf("Warning nand block size can not be 0 when using 'next good block' for partition '%s'\n", ptn->name);
printf("Ignoring write request\n");
}
} else if (ptn->flags &
FASTBOOT_PTENTRY_FLAGS_WRITE_CONTIGUOUS_BLOCK) {
#if 0
/* Keep writing until you get a good block
transfer_buffer should already be aligned */
if (interface.nand_block_size) {
if (0 == nand_curr_device) {
nand_info_t *nand;
unsigned long off;
unsigned int ok_start;
nand = &nand_info[nand_curr_device];
printf("\nDevice %d bad blocks:\n",
nand_curr_device);
/* Initialize the ok_start to the
start of the partition
Then try to find a block large
enough for the download */
ok_start = ptn->start;
/* It is assumed that the start and
length are multiples of block size */
for (off = ptn->start;
off < ptn->start + ptn->length;
off += nand->erasesize) {
if (nand_block_isbad(nand, off)) {
/* Reset the ok_start
to the next block */
ok_start = off +
nand->erasesize;
}
/* Check if we have enough
blocks */
if ((ok_start - off) >=
download_bytes)
break;
}
/* Check if there is enough space */
if (ok_start + download_bytes <=
ptn->start + ptn->length) {
sprintf(addr, "0x%x", interface.transfer_buffer);
sprintf(wstart, "0x%x", ok_start);
sprintf(wlength, "0x%x", download_bytes);
ret = do_nand(NULL, 0, 5, write);
/* Save the results into an
environment variable on the
format
ptn_name + 'offset'
ptn_name + 'size' */
if (ret) {
/* failed */
save_block_values(ptn, 0, 0);
} else {
/* success */
save_block_values(ptn, ok_start, download_bytes);
}
} else {
printf("Error could not find enough contiguous space in partition '%s' \n", ptn->name);
printf("Ignoring write request\n");
}
} else {
/* TBD : Generalize flash handling */
printf("Error only handling 1 NAND per board");
printf("Ignoring write request\n");
}
} else {
printf("Warning nand block size can not be 0 when using 'continuous block' for partition '%s'\n", ptn->name);
printf("Ignoring write request\n");
}
#endif
} else {
/* Normal case */
sprintf(addr, "0x%x", interface.transfer_buffer);
sprintf(wstart, "0x%x", ptn->start +
(repeat * ptn->length));
sprintf(wlength, "0x%x", download_bytes);
#ifdef CFG_NAND_YAFFS_WRITE
if (ptn->flags & FASTBOOT_PTENTRY_FLAGS_WRITE_YAFFS)
sprintf(wlength, "0x%x",
download_bytes_unpadded);
#endif
#if 0
ret = do_nand(NULL, 0, 5, write);
#endif
if (0 == repeat) {
if (ret) /* failed */
save_block_values(ptn, 0, 0);
else /* success */
save_block_values(ptn, ptn->start,
download_bytes);
}
}
#if 0
do_nand(NULL, 0, 4, lock);
#endif
if (ret)
break;
}
return ret;
}
