* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
+ * Copyright 2010 Freescale Semiconductor
+ * The portions of this file whose copyright is held by Freescale and which
+ * are not considered a derived work of GPL v2-only code may be distributed
+ * and/or modified under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
*/
#include <common.h>
#include <malloc.h>
#include <div64.h>
-
#include <asm/errno.h>
#include <linux/mtd/mtd.h>
#include <nand.h>
{
struct jffs2_unknown_node cleanmarker;
erase_info_t erase;
- ulong erase_length;
+ unsigned long erase_length, erased_length; /* in blocks */
int bbtest = 1;
int result;
int percent_complete = -1;
const char *mtd_device = meminfo->name;
struct mtd_oob_ops oob_opts;
struct nand_chip *chip = meminfo->priv;
- uint8_t buf[64];
- memset(buf, 0, sizeof(buf));
+ if ((opts->offset & (meminfo->writesize - 1)) != 0) {
+ printf("Attempt to erase non page aligned data\n");
+ return -1;
+ }
+
memset(&erase, 0, sizeof(erase));
memset(&oob_opts, 0, sizeof(oob_opts));
erase.mtd = meminfo;
erase.len = meminfo->erasesize;
erase.addr = opts->offset;
- erase_length = opts->length;
-
+ erase_length = lldiv(opts->length + meminfo->erasesize - 1,
+ meminfo->erasesize);
cleanmarker.magic = cpu_to_je16 (JFFS2_MAGIC_BITMASK);
cleanmarker.nodetype = cpu_to_je16 (JFFS2_NODETYPE_CLEANMARKER);
cleanmarker.totlen = cpu_to_je32(8);
- cleanmarker.hdr_crc = cpu_to_je32(
- crc32_no_comp(0, (unsigned char *) &cleanmarker,
- sizeof(struct jffs2_unknown_node) - 4));
/* scrub option allows to erase badblock. To prevent internal
* check from erase() method, set block check method to dummy
priv_nand->bbt = NULL;
}
- if (erase_length < meminfo->erasesize) {
- printf("Warning: Erase size 0x%08lx smaller than one " \
- "erase block 0x%08x\n",erase_length, meminfo->erasesize);
- printf(" Erasing 0x%08x instead\n", meminfo->erasesize);
- erase_length = meminfo->erasesize;
- }
-
- for (;
- erase.addr < opts->offset + erase_length;
+ for (erased_length = 0;
+ erased_length < erase_length;
erase.addr += meminfo->erasesize) {
WATCHDOG_RESET ();
if (ret > 0) {
if (!opts->quiet)
printf("\rSkipping bad block at "
- "0x%08x "
+ "0x%08llx "
" \n",
erase.addr);
+
+ if (!opts->spread)
+ erased_length++;
+
continue;
} else if (ret < 0) {
}
}
+ erased_length++;
+
result = meminfo->erase(meminfo, &erase);
if (result != 0) {
printf("\n%s: MTD Erase failure: %d\n",
}
/* format for JFFS2 ? */
- if (opts->jffs2) {
-
- chip->ops.len = chip->ops.ooblen = 64;
+ if (opts->jffs2 && chip->ecc.layout->oobavail >= 8) {
+ chip->ops.ooblen = 8;
chip->ops.datbuf = NULL;
- chip->ops.oobbuf = buf;
- chip->ops.ooboffs = chip->badblockpos & ~0x01;
+ chip->ops.oobbuf = (uint8_t *)&cleanmarker;
+ chip->ops.ooboffs = 0;
+ chip->ops.mode = MTD_OOB_AUTO;
result = meminfo->write_oob(meminfo,
- erase.addr + meminfo->oobsize,
- &chip->ops);
+ erase.addr,
+ &chip->ops);
if (result != 0) {
printf("\n%s: MTD writeoob failure: %d\n",
- mtd_device, result);
+ mtd_device, result);
continue;
}
- else
- printf("%s: MTD writeoob at 0x%08x\n",mtd_device, erase.addr + meminfo->oobsize );
}
if (!opts->quiet) {
- unsigned long long n =(unsigned long long)
- (erase.addr + meminfo->erasesize - opts->offset)
- * 100;
+ unsigned long long n = erased_length * 100ULL;
int percent;
do_div(n, erase_length);
if (percent != percent_complete) {
percent_complete = percent;
- printf("\rErasing at 0x%x -- %3d%% complete.",
- erase.addr, percent);
+ printf("\rErasing at 0x%llx -- %3d%% complete.",
+ erase.addr, percent);
if (opts->jffs2 && result == 0)
- printf(" Cleanmarker written at 0x%x.",
- erase.addr);
+ printf(" Cleanmarker written at 0x%llx.",
+ erase.addr);
}
}
}
return 0;
}
-/* XXX U-BOOT XXX */
-#if 0
+#ifdef CONFIG_CMD_NAND_LOCK_UNLOCK
-#define MAX_PAGE_SIZE 2048
-#define MAX_OOB_SIZE 64
-
-/*
- * buffer array used for writing data
- */
-static unsigned char data_buf[MAX_PAGE_SIZE];
-static unsigned char oob_buf[MAX_OOB_SIZE];
-
-/* OOB layouts to pass into the kernel as default */
-static struct nand_ecclayout none_ecclayout = {
- .useecc = MTD_NANDECC_OFF,
-};
-
-static struct nand_ecclayout jffs2_ecclayout = {
- .useecc = MTD_NANDECC_PLACE,
- .eccbytes = 6,
- .eccpos = { 0, 1, 2, 3, 6, 7 }
-};
-
-static struct nand_ecclayout yaffs_ecclayout = {
- .useecc = MTD_NANDECC_PLACE,
- .eccbytes = 6,
- .eccpos = { 8, 9, 10, 13, 14, 15}
-};
-
-static struct nand_ecclayout autoplace_ecclayout = {
- .useecc = MTD_NANDECC_AUTOPLACE
-};
-#endif
-
-/* XXX U-BOOT XXX */
-#if 0
/******************************************************************************
* Support for locking / unlocking operations of some NAND devices
*****************************************************************************/
* nand_lock: Set all pages of NAND flash chip to the LOCK or LOCK-TIGHT
* state
*
- * @param meminfo nand mtd instance
+ * @param mtd nand mtd instance
* @param tight bring device in lock tight mode
*
* @return 0 on success, -1 in case of error
* calls will fail. It is only posible to leave lock-tight state by
* an hardware signal (low pulse on _WP pin) or by power down.
*/
-int nand_lock(nand_info_t *meminfo, int tight)
+int nand_lock(struct mtd_info *mtd, int tight)
{
int ret = 0;
int status;
- struct nand_chip *this = meminfo->priv;
+ struct nand_chip *chip = mtd->priv;
/* select the NAND device */
- this->select_chip(meminfo, 0);
+ chip->select_chip(mtd, 0);
- this->cmdfunc(meminfo,
+ chip->cmdfunc(mtd,
(tight ? NAND_CMD_LOCK_TIGHT : NAND_CMD_LOCK),
-1, -1);
/* call wait ready function */
- status = this->waitfunc(meminfo, this, FL_WRITING);
+ status = chip->waitfunc(mtd, chip);
/* see if device thinks it succeeded */
if (status & 0x01) {
}
/* de-select the NAND device */
- this->select_chip(meminfo, -1);
+ chip->select_chip(mtd, -1);
return ret;
}
* nand_get_lock_status: - query current lock state from one page of NAND
* flash
*
- * @param meminfo nand mtd instance
+ * @param mtd nand mtd instance
* @param offset page address to query (muss be page aligned!)
*
* @return -1 in case of error
* NAND_LOCK_STATUS_UNLOCK: page unlocked
*
*/
-int nand_get_lock_status(nand_info_t *meminfo, ulong offset)
+int nand_get_lock_status(struct mtd_info *mtd, loff_t offset)
{
int ret = 0;
int chipnr;
int page;
- struct nand_chip *this = meminfo->priv;
+ struct nand_chip *chip = mtd->priv;
/* select the NAND device */
- chipnr = (int)(offset >> this->chip_shift);
- this->select_chip(meminfo, chipnr);
+ chipnr = (int)(offset >> chip->chip_shift);
+ chip->select_chip(mtd, chipnr);
- if ((offset & (meminfo->writesize - 1)) != 0) {
+ if ((offset & (mtd->writesize - 1)) != 0) {
printf ("nand_get_lock_status: "
"Start address must be beginning of "
"nand page!\n");
}
/* check the Lock Status */
- page = (int)(offset >> this->page_shift);
- this->cmdfunc(meminfo, NAND_CMD_LOCK_STATUS, -1, page & this->pagemask);
+ page = (int)(offset >> chip->page_shift);
+ chip->cmdfunc(mtd, NAND_CMD_LOCK_STATUS, -1, page & chip->pagemask);
- ret = this->read_byte(meminfo) & (NAND_LOCK_STATUS_TIGHT
+ ret = chip->read_byte(mtd) & (NAND_LOCK_STATUS_TIGHT
| NAND_LOCK_STATUS_LOCK
| NAND_LOCK_STATUS_UNLOCK);
out:
/* de-select the NAND device */
- this->select_chip(meminfo, -1);
+ chip->select_chip(mtd, -1);
return ret;
}
* nand_unlock: - Unlock area of NAND pages
* only one consecutive area can be unlocked at one time!
*
- * @param meminfo nand mtd instance
+ * @param mtd nand mtd instance
* @param start start byte address
* @param length number of bytes to unlock (must be a multiple of
* page size nand->writesize)
*
* @return 0 on success, -1 in case of error
*/
-int nand_unlock(nand_info_t *meminfo, ulong start, ulong length)
+int nand_unlock(struct mtd_info *mtd, ulong start, ulong length)
{
int ret = 0;
int chipnr;
int status;
int page;
- struct nand_chip *this = meminfo->priv;
+ struct nand_chip *chip = mtd->priv;
printf ("nand_unlock: start: %08x, length: %d!\n",
(int)start, (int)length);
/* select the NAND device */
- chipnr = (int)(start >> this->chip_shift);
- this->select_chip(meminfo, chipnr);
+ chipnr = (int)(start >> chip->chip_shift);
+ chip->select_chip(mtd, chipnr);
/* check the WP bit */
- this->cmdfunc(meminfo, NAND_CMD_STATUS, -1, -1);
- if ((this->read_byte(meminfo) & 0x80) == 0) {
+ chip->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1);
+ if (!(chip->read_byte(mtd) & NAND_STATUS_WP)) {
printf ("nand_unlock: Device is write protected!\n");
ret = -1;
goto out;
}
- if ((start & (meminfo->writesize - 1)) != 0) {
+ if ((start & (mtd->erasesize - 1)) != 0) {
printf ("nand_unlock: Start address must be beginning of "
- "nand page!\n");
+ "nand block!\n");
ret = -1;
goto out;
}
- if (length == 0 || (length & (meminfo->writesize - 1)) != 0) {
- printf ("nand_unlock: Length must be a multiple of nand page "
- "size!\n");
+ if (length == 0 || (length & (mtd->erasesize - 1)) != 0) {
+ printf ("nand_unlock: Length must be a multiple of nand block "
+ "size %08x!\n", mtd->erasesize);
ret = -1;
goto out;
}
+ /*
+ * Set length so that the last address is set to the
+ * starting address of the last block
+ */
+ length -= mtd->erasesize;
+
/* submit address of first page to unlock */
- page = (int)(start >> this->page_shift);
- this->cmdfunc(meminfo, NAND_CMD_UNLOCK1, -1, page & this->pagemask);
+ page = (int)(start >> chip->page_shift);
+ chip->cmdfunc(mtd, NAND_CMD_UNLOCK1, -1, page & chip->pagemask);
/* submit ADDRESS of LAST page to unlock */
- page += (int)(length >> this->page_shift) - 1;
- this->cmdfunc(meminfo, NAND_CMD_UNLOCK2, -1, page & this->pagemask);
+ page += (int)(length >> chip->page_shift);
+ chip->cmdfunc(mtd, NAND_CMD_UNLOCK2, -1, page & chip->pagemask);
/* call wait ready function */
- status = this->waitfunc(meminfo, this, FL_WRITING);
+ status = chip->waitfunc(mtd, chip);
/* see if device thinks it succeeded */
if (status & 0x01) {
/* there was an error */
out:
/* de-select the NAND device */
- this->select_chip(meminfo, -1);
+ chip->select_chip(mtd, -1);
return ret;
}
#endif
/**
- * get_len_incl_bad
+ * check_skip_len
*
- * Check if length including bad blocks fits into device.
+ * Check if there are any bad blocks, and whether length including bad
+ * blocks fits into device
*
* @param nand NAND device
* @param offset offset in flash
* @param length image length
- * @return image length including bad blocks
+ * @return 0 if the image fits and there are no bad blocks
+ * 1 if the image fits, but there are bad blocks
+ * -1 if the image does not fit
*/
-static size_t get_len_incl_bad (nand_info_t *nand, size_t offset,
- const size_t length)
+static int check_skip_len(nand_info_t *nand, loff_t offset, size_t length)
{
- size_t len_incl_bad = 0;
size_t len_excl_bad = 0;
- size_t block_len;
+ int ret = 0;
while (len_excl_bad < length) {
- block_len = nand->erasesize - (offset & (nand->erasesize - 1));
+ size_t block_len, block_off;
+ loff_t block_start;
- if (!nand_block_isbad (nand, offset & ~(nand->erasesize - 1)))
- len_excl_bad += block_len;
+ if (offset >= nand->size)
+ return -1;
- len_incl_bad += block_len;
- offset += block_len;
+ block_start = offset & ~(loff_t)(nand->erasesize - 1);
+ block_off = offset & (nand->erasesize - 1);
+ block_len = nand->erasesize - block_off;
- if ((offset + len_incl_bad) >= nand->size)
- break;
+ if (!nand_block_isbad(nand, block_start))
+ len_excl_bad += block_len;
+ else
+ ret = 1;
+
+ offset += block_len;
}
- return len_incl_bad;
+ return ret;
}
/**
* @param nand NAND device
* @param offset offset in flash
* @param length buffer length
- * @param buf buffer to read from
+ * @param buffer buffer to read from
+ * @param withoob whether write with yaffs format
* @return 0 in case of success
*/
-int nand_write_skip_bad(nand_info_t *nand, size_t offset, size_t *length,
- u_char *buffer)
+int nand_write_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
+ u_char *buffer, int withoob)
{
- int rval;
+ int rval = 0, blocksize;
size_t left_to_write = *length;
- size_t len_incl_bad;
u_char *p_buffer = buffer;
+ int need_skip;
+
+#ifdef CONFIG_CMD_NAND_YAFFS
+ if (withoob) {
+ int pages;
+ pages = nand->erasesize / nand->writesize;
+ blocksize = (pages * nand->oobsize) + nand->erasesize;
+ if (*length % (nand->writesize + nand->oobsize)) {
+ printf ("Attempt to write incomplete page"
+ " in yaffs mode\n");
+ return -EINVAL;
+ }
+ } else
+#endif
+ {
+ blocksize = nand->erasesize;
+ }
- /* Reject writes, which are not page aligned */
- if ((offset & (nand->writesize - 1)) != 0 ||
- (*length & (nand->writesize - 1)) != 0) {
+ /*
+ * nand_write() handles unaligned, partial page writes.
+ *
+ * We allow length to be unaligned, for convenience in
+ * using the $filesize variable.
+ *
+ * However, starting at an unaligned offset makes the
+ * semantics of bad block skipping ambiguous (really,
+ * you should only start a block skipping access at a
+ * partition boundary). So don't try to handle that.
+ */
+ if ((offset & (nand->writesize - 1)) != 0) {
printf ("Attempt to write non page aligned data\n");
+ *length = 0;
return -EINVAL;
}
- len_incl_bad = get_len_incl_bad (nand, offset, *length);
-
- if ((offset + len_incl_bad) >= nand->size) {
+ need_skip = check_skip_len(nand, offset, *length);
+ if (need_skip < 0) {
printf ("Attempt to write outside the flash area\n");
+ *length = 0;
return -EINVAL;
}
- if (len_incl_bad == *length) {
+ if (!need_skip) {
rval = nand_write (nand, offset, length, buffer);
- if (rval != 0) {
- printf ("NAND write to offset %x failed %d\n",
- offset, rval);
- return rval;
- }
+ if (rval == 0)
+ return 0;
+
+ *length = 0;
+ printf ("NAND write to offset %llx failed %d\n",
+ offset, rval);
+ return rval;
}
while (left_to_write > 0) {
size_t block_offset = offset & (nand->erasesize - 1);
size_t write_size;
+ WATCHDOG_RESET ();
+
if (nand_block_isbad (nand, offset & ~(nand->erasesize - 1))) {
- printf ("Skip bad block 0x%08x\n",
+ printf ("Skip bad block 0x%08llx\n",
offset & ~(nand->erasesize - 1));
offset += nand->erasesize - block_offset;
continue;
}
- if (left_to_write < (nand->erasesize - block_offset))
+ if (left_to_write < (blocksize - block_offset))
write_size = left_to_write;
else
- write_size = nand->erasesize - block_offset;
+ write_size = blocksize - block_offset;
+
+#ifdef CONFIG_CMD_NAND_YAFFS
+ if (withoob) {
+ int page, pages;
+ size_t pagesize = nand->writesize;
+ size_t pagesize_oob = pagesize + nand->oobsize;
+ struct mtd_oob_ops ops;
+
+ ops.len = pagesize;
+ ops.ooblen = nand->oobsize;
+ ops.mode = MTD_OOB_AUTO;
+ ops.ooboffs = 0;
+
+ pages = write_size / pagesize_oob;
+ for (page = 0; page < pages; page++) {
+ ops.datbuf = p_buffer;
+ ops.oobbuf = ops.datbuf + pagesize;
+
+ rval = nand->write_oob(nand, offset, &ops);
+ if (!rval)
+ break;
+
+ offset += pagesize;
+ p_buffer += pagesize_oob;
+ }
+ }
+ else
+#endif
+ {
+ rval = nand_write (nand, offset, &write_size, p_buffer);
+ offset += write_size;
+ p_buffer += write_size;
+ }
- rval = nand_write (nand, offset, &write_size, p_buffer);
if (rval != 0) {
- printf ("NAND write to offset %x failed %d\n",
+ printf ("NAND write to offset %llx failed %d\n",
offset, rval);
*length -= left_to_write;
return rval;
}
left_to_write -= write_size;
- offset += write_size;
- p_buffer += write_size;
}
return 0;
* @param buffer buffer to write to
* @return 0 in case of success
*/
-int nand_read_skip_bad(nand_info_t *nand, size_t offset, size_t *length,
+int nand_read_skip_bad(nand_info_t *nand, loff_t offset, size_t *length,
u_char *buffer)
{
int rval;
size_t left_to_read = *length;
- size_t len_incl_bad;
u_char *p_buffer = buffer;
+ int need_skip;
- len_incl_bad = get_len_incl_bad (nand, offset, *length);
+ if ((offset & (nand->writesize - 1)) != 0) {
+ printf ("Attempt to read non page aligned data\n");
+ *length = 0;
+ return -EINVAL;
+ }
- if ((offset + len_incl_bad) >= nand->size) {
+ need_skip = check_skip_len(nand, offset, *length);
+ if (need_skip < 0) {
printf ("Attempt to read outside the flash area\n");
+ *length = 0;
return -EINVAL;
}
- if (len_incl_bad == *length) {
+ if (!need_skip) {
rval = nand_read (nand, offset, length, buffer);
- if (rval != 0) {
- printf ("NAND read from offset %x failed %d\n",
- offset, rval);
- return rval;
- }
+ if (!rval || rval == -EUCLEAN)
+ return 0;
+
+ *length = 0;
+ printf ("NAND read from offset %llx failed %d\n",
+ offset, rval);
+ return rval;
}
while (left_to_read > 0) {
size_t block_offset = offset & (nand->erasesize - 1);
size_t read_length;
+ WATCHDOG_RESET ();
+
if (nand_block_isbad (nand, offset & ~(nand->erasesize - 1))) {
- printf ("Skipping bad block 0x%08x\n",
+ printf ("Skipping bad block 0x%08llx\n",
offset & ~(nand->erasesize - 1));
offset += nand->erasesize - block_offset;
continue;
read_length = nand->erasesize - block_offset;
rval = nand_read (nand, offset, &read_length, p_buffer);
- if (rval != 0) {
- printf ("NAND read from offset %x failed %d\n",
+ if (rval && rval != -EUCLEAN) {
+ printf ("NAND read from offset %llx failed %d\n",
offset, rval);
*length -= left_to_read;
return rval;
projects / people / ms / u-boot.git / blobdiff