default:
block = (int) (addr >> this->erase_shift);
page = (int) (addr >> this->page_shift);
+
+ if (ONENAND_IS_2PLANE(this)) {
+ /* Make the even block number */
+ block &= ~1;
+ /* Is it the odd plane? */
+ if (addr & this->writesize)
+ block++;
+ page >>= 1;
+ }
page &= this->page_mask;
break;
}
value = onenand_bufferram_address(this, block);
this->write_word(value, this->base + ONENAND_REG_START_ADDRESS2);
- /* Switch to the next data buffer */
- ONENAND_SET_NEXT_BUFFERRAM(this);
+ if (ONENAND_IS_2PLANE(this))
+ /* It is always BufferRAM0 */
+ ONENAND_SET_BUFFERRAM0(this);
+ else
+ /* Switch to the next data buffer */
+ ONENAND_SET_NEXT_BUFFERRAM(this);
return 0;
}
break;
default:
+ if (ONENAND_IS_2PLANE(this) && cmd == ONENAND_CMD_PROG)
+ cmd = ONENAND_CMD_2X_PROG;
dataram = ONENAND_CURRENT_BUFFERRAM(this);
break;
}
printk(KERN_ERR "onenand_wait: controller error = 0x%04x\n", ctrl);
if (ctrl & ONENAND_CTRL_LOCK)
printk(KERN_ERR "onenand_wait: it's locked error.\n");
- return ctrl;
+ return -EIO;
}
if (interrupt & ONENAND_INT_READ) {
int ecc = this->read_word(this->base + ONENAND_REG_ECC_STATUS);
if (ecc) {
- printk(KERN_ERR "onenand_wait: ECC error = 0x%04x\n", ecc);
if (ecc & ONENAND_ECC_2BIT_ALL) {
+ printk(KERN_ERR "onenand_wait: ECC error = 0x%04x\n", ecc);
mtd->ecc_stats.failed++;
- return ecc;
- } else if (ecc & ONENAND_ECC_1BIT_ALL)
+ return -EBADMSG;
+ } else if (ecc & ONENAND_ECC_1BIT_ALL) {
+ printk(KERN_INFO "onenand_wait: correctable ECC error = 0x%04x\n", ecc);
mtd->ecc_stats.corrected++;
+ }
}
} else if (state == FL_READING) {
printk(KERN_ERR "onenand_wait: read timeout! ctrl=0x%04x intr=0x%04x\n", ctrl, interrupt);
*/
static irqreturn_t onenand_interrupt(int irq, void *data)
{
- struct onenand_chip *this = (struct onenand_chip *) data;
+ struct onenand_chip *this = data;
/* To handle shared interrupt */
if (!this->complete.done)
struct onenand_chip *this = mtd->priv;
if (ONENAND_CURRENT_BUFFERRAM(this)) {
+ /* Note: the 'this->writesize' is a real page size */
if (area == ONENAND_DATARAM)
- return mtd->writesize;
+ return this->writesize;
if (area == ONENAND_SPARERAM)
return mtd->oobsize;
}
return 0;
}
+/**
+ * onenand_get_2x_blockpage - [GENERIC] Get blockpage at 2x program mode
+ * @param mtd MTD data structure
+ * @param addr address to check
+ * @return blockpage address
+ *
+ * Get blockpage address at 2x program mode
+ */
+static int onenand_get_2x_blockpage(struct mtd_info *mtd, loff_t addr)
+{
+ struct onenand_chip *this = mtd->priv;
+ int blockpage, block, page;
+
+ /* Calculate the even block number */
+ block = (int) (addr >> this->erase_shift) & ~1;
+ /* Is it the odd plane? */
+ if (addr & this->writesize)
+ block++;
+ page = (int) (addr >> (this->page_shift + 1)) & this->page_mask;
+ blockpage = (block << 7) | page;
+
+ return blockpage;
+}
+
/**
* onenand_check_bufferram - [GENERIC] Check BufferRAM information
* @param mtd MTD data structure
int blockpage, found = 0;
unsigned int i;
- blockpage = (int) (addr >> this->page_shift);
+ if (ONENAND_IS_2PLANE(this))
+ blockpage = onenand_get_2x_blockpage(mtd, addr);
+ else
+ blockpage = (int) (addr >> this->page_shift);
/* Is there valid data? */
i = ONENAND_CURRENT_BUFFERRAM(this);
int blockpage;
unsigned int i;
- blockpage = (int) (addr >> this->page_shift);
+ if (ONENAND_IS_2PLANE(this))
+ blockpage = onenand_get_2x_blockpage(mtd, addr);
+ else
+ blockpage = (int) (addr >> this->page_shift);
/* Invalidate another BufferRAM */
i = ONENAND_NEXT_BUFFERRAM(this);
}
/**
- * onenand_read - [MTD Interface] Read data from flash
+ * onenand_transfer_auto_oob - [Internal] oob auto-placement transfer
+ * @param mtd MTD device structure
+ * @param buf destination address
+ * @param column oob offset to read from
+ * @param thislen oob length to read
+ */
+static int onenand_transfer_auto_oob(struct mtd_info *mtd, uint8_t *buf, int column,
+ int thislen)
+{
+ struct onenand_chip *this = mtd->priv;
+ struct nand_oobfree *free;
+ int readcol = column;
+ int readend = column + thislen;
+ int lastgap = 0;
+ unsigned int i;
+ uint8_t *oob_buf = this->oob_buf;
+
+ free = this->ecclayout->oobfree;
+ for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES && free->length; i++, free++) {
+ if (readcol >= lastgap)
+ readcol += free->offset - lastgap;
+ if (readend >= lastgap)
+ readend += free->offset - lastgap;
+ lastgap = free->offset + free->length;
+ }
+ this->read_bufferram(mtd, ONENAND_SPARERAM, oob_buf, 0, mtd->oobsize);
+ free = this->ecclayout->oobfree;
+ for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES && free->length; i++, free++) {
+ int free_end = free->offset + free->length;
+ if (free->offset < readend && free_end > readcol) {
+ int st = max_t(int,free->offset,readcol);
+ int ed = min_t(int,free_end,readend);
+ int n = ed - st;
+ memcpy(buf, oob_buf + st, n);
+ buf += n;
+ } else if (column == 0)
+ break;
+ }
+ return 0;
+}
+
+/**
+ * onenand_read_ops_nolock - [OneNAND Interface] OneNAND read main and/or out-of-band
* @param mtd MTD device structure
* @param from offset to read from
- * @param len number of bytes to read
- * @param retlen pointer to variable to store the number of read bytes
- * @param buf the databuffer to put data
+ * @param ops: oob operation description structure
*
- * Read with ecc
-*/
-static int onenand_read(struct mtd_info *mtd, loff_t from, size_t len,
- size_t *retlen, u_char *buf)
+ * OneNAND read main and/or out-of-band data
+ */
+static int onenand_read_ops_nolock(struct mtd_info *mtd, loff_t from,
+ struct mtd_oob_ops *ops)
{
struct onenand_chip *this = mtd->priv;
struct mtd_ecc_stats stats;
- int read = 0, column;
- int thislen;
+ size_t len = ops->len;
+ size_t ooblen = ops->ooblen;
+ u_char *buf = ops->datbuf;
+ u_char *oobbuf = ops->oobbuf;
+ int read = 0, column, thislen;
+ int oobread = 0, oobcolumn, thisooblen, oobsize;
int ret = 0, boundary = 0;
+ int writesize = this->writesize;
- DEBUG(MTD_DEBUG_LEVEL3, "onenand_read: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len);
+ DEBUG(MTD_DEBUG_LEVEL3, "onenand_read_ops_nolock: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len);
+
+ if (ops->mode == MTD_OOB_AUTO)
+ oobsize = this->ecclayout->oobavail;
+ else
+ oobsize = mtd->oobsize;
+
+ oobcolumn = from & (mtd->oobsize - 1);
/* Do not allow reads past end of device */
if ((from + len) > mtd->size) {
- printk(KERN_ERR "onenand_read: Attempt read beyond end of device\n");
- *retlen = 0;
+ printk(KERN_ERR "onenand_read_ops_nolock: Attempt read beyond end of device\n");
+ ops->retlen = 0;
+ ops->oobretlen = 0;
return -EINVAL;
}
- /* Grab the lock and see if the device is available */
- onenand_get_device(mtd, FL_READING);
-
stats = mtd->ecc_stats;
/* Read-while-load method */
/* Do first load to bufferRAM */
if (read < len) {
if (!onenand_check_bufferram(mtd, from)) {
- this->command(mtd, ONENAND_CMD_READ, from, mtd->writesize);
+ this->command(mtd, ONENAND_CMD_READ, from, writesize);
ret = this->wait(mtd, FL_READING);
onenand_update_bufferram(mtd, from, !ret);
}
}
- thislen = min_t(int, mtd->writesize, len - read);
- column = from & (mtd->writesize - 1);
- if (column + thislen > mtd->writesize)
- thislen = mtd->writesize - column;
+ thislen = min_t(int, writesize, len - read);
+ column = from & (writesize - 1);
+ if (column + thislen > writesize)
+ thislen = writesize - column;
while (!ret) {
/* If there is more to load then start next load */
from += thislen;
if (read + thislen < len) {
- this->command(mtd, ONENAND_CMD_READ, from, mtd->writesize);
+ this->command(mtd, ONENAND_CMD_READ, from, writesize);
/*
* Chip boundary handling in DDP
* Now we issued chip 1 read and pointed chip 1
}
/* While load is going, read from last bufferRAM */
this->read_bufferram(mtd, ONENAND_DATARAM, buf, column, thislen);
+
+ /* Read oob area if needed */
+ if (oobbuf) {
+ thisooblen = oobsize - oobcolumn;
+ thisooblen = min_t(int, thisooblen, ooblen - oobread);
+
+ if (ops->mode == MTD_OOB_AUTO)
+ onenand_transfer_auto_oob(mtd, oobbuf, oobcolumn, thisooblen);
+ else
+ this->read_bufferram(mtd, ONENAND_SPARERAM, oobbuf, oobcolumn, thisooblen);
+ oobread += thisooblen;
+ oobbuf += thisooblen;
+ oobcolumn = 0;
+ }
+
/* See if we are done */
read += thislen;
if (read == len)
this->write_word(ONENAND_DDP_CHIP1, this->base + ONENAND_REG_START_ADDRESS2);
ONENAND_SET_NEXT_BUFFERRAM(this);
buf += thislen;
- thislen = min_t(int, mtd->writesize, len - read);
+ thislen = min_t(int, writesize, len - read);
column = 0;
cond_resched();
/* Now wait for load */
onenand_update_bufferram(mtd, from, !ret);
}
- /* Deselect and wake up anyone waiting on the device */
- onenand_release_device(mtd);
-
/*
* Return success, if no ECC failures, else -EBADMSG
* fs driver will take care of that, because
* retlen == desired len and result == -EBADMSG
*/
- *retlen = read;
+ ops->retlen = read;
+ ops->oobretlen = oobread;
if (mtd->ecc_stats.failed - stats.failed)
return -EBADMSG;
}
/**
- * onenand_transfer_auto_oob - [Internal] oob auto-placement transfer
- * @param mtd MTD device structure
- * @param buf destination address
- * @param column oob offset to read from
- * @param thislen oob length to read
- */
-static int onenand_transfer_auto_oob(struct mtd_info *mtd, uint8_t *buf, int column,
- int thislen)
-{
- struct onenand_chip *this = mtd->priv;
- struct nand_oobfree *free;
- int readcol = column;
- int readend = column + thislen;
- int lastgap = 0;
- unsigned int i;
- uint8_t *oob_buf = this->oob_buf;
-
- free = this->ecclayout->oobfree;
- for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES && free->length; i++, free++) {
- if (readcol >= lastgap)
- readcol += free->offset - lastgap;
- if (readend >= lastgap)
- readend += free->offset - lastgap;
- lastgap = free->offset + free->length;
- }
- this->read_bufferram(mtd, ONENAND_SPARERAM, oob_buf, 0, mtd->oobsize);
- free = this->ecclayout->oobfree;
- for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES && free->length; i++, free++) {
- int free_end = free->offset + free->length;
- if (free->offset < readend && free_end > readcol) {
- int st = max_t(int,free->offset,readcol);
- int ed = min_t(int,free_end,readend);
- int n = ed - st;
- memcpy(buf, oob_buf + st, n);
- buf += n;
- } else if (column == 0)
- break;
- }
- return 0;
-}
-
-/**
- * onenand_do_read_oob - [MTD Interface] OneNAND read out-of-band
+ * onenand_read_oob_nolock - [MTD Interface] OneNAND read out-of-band
* @param mtd MTD device structure
* @param from offset to read from
- * @param len number of bytes to read
- * @param retlen pointer to variable to store the number of read bytes
- * @param buf the databuffer to put data
- * @param mode operation mode
+ * @param ops: oob operation description structure
*
* OneNAND read out-of-band data from the spare area
*/
-static int onenand_do_read_oob(struct mtd_info *mtd, loff_t from,
+static int onenand_read_oob_nolock(struct mtd_info *mtd, loff_t from,
struct mtd_oob_ops *ops)
{
struct onenand_chip *this = mtd->priv;
from += ops->ooboffs;
- DEBUG(MTD_DEBUG_LEVEL3, "onenand_read_oob: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len);
+ DEBUG(MTD_DEBUG_LEVEL3, "onenand_read_oob_nolock: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len);
/* Initialize return length value */
ops->oobretlen = 0;
column = from & (mtd->oobsize - 1);
if (unlikely(column >= oobsize)) {
- printk(KERN_ERR "onenand_read_oob: Attempted to start read outside oob\n");
+ printk(KERN_ERR "onenand_read_oob_nolock: Attempted to start read outside oob\n");
return -EINVAL;
}
if (unlikely(from >= mtd->size ||
column + len > ((mtd->size >> this->page_shift) -
(from >> this->page_shift)) * oobsize)) {
- printk(KERN_ERR "onenand_read_oob: Attempted to read beyond end of device\n");
+ printk(KERN_ERR "onenand_read_oob_nolock: Attempted to read beyond end of device\n");
return -EINVAL;
}
- /* Grab the lock and see if the device is available */
- onenand_get_device(mtd, FL_READING);
-
while (read < len) {
cond_resched();
this->read_bufferram(mtd, ONENAND_SPARERAM, buf, column, thislen);
if (ret) {
- printk(KERN_ERR "onenand_read_oob: read failed = 0x%x\n", ret);
+ printk(KERN_ERR "onenand_read_oob_nolock: read failed = 0x%x\n", ret);
break;
}
}
}
- /* Deselect and wake up anyone waiting on the device */
+ ops->oobretlen = read;
+ return ret;
+}
+
+/**
+ * onenand_read - [MTD Interface] Read data from flash
+ * @param mtd MTD device structure
+ * @param from offset to read from
+ * @param len number of bytes to read
+ * @param retlen pointer to variable to store the number of read bytes
+ * @param buf the databuffer to put data
+ *
+ * Read with ecc
+*/
+static int onenand_read(struct mtd_info *mtd, loff_t from, size_t len,
+ size_t *retlen, u_char *buf)
+{
+ struct mtd_oob_ops ops = {
+ .len = len,
+ .ooblen = 0,
+ .datbuf = buf,
+ .oobbuf = NULL,
+ };
+ int ret;
+
+ onenand_get_device(mtd, FL_READING);
+ ret = onenand_read_ops_nolock(mtd, from, &ops);
onenand_release_device(mtd);
- ops->oobretlen = read;
+ *retlen = ops.retlen;
return ret;
}
/**
- * onenand_read_oob - [MTD Interface] NAND write data and/or out-of-band
+ * onenand_read_oob - [MTD Interface] Read main and/or out-of-band
* @param mtd: MTD device structure
* @param from: offset to read from
* @param ops: oob operation description structure
+
+ * Read main and/or out-of-band
*/
static int onenand_read_oob(struct mtd_info *mtd, loff_t from,
struct mtd_oob_ops *ops)
{
+ int ret;
+
switch (ops->mode) {
case MTD_OOB_PLACE:
case MTD_OOB_AUTO:
default:
return -EINVAL;
}
- return onenand_do_read_oob(mtd, from, ops);
+
+ onenand_get_device(mtd, FL_READING);
+ if (ops->datbuf)
+ ret = onenand_read_ops_nolock(mtd, from, ops);
+ else
+ ret = onenand_read_oob_nolock(mtd, from, ops);
+ onenand_release_device(mtd);
+
+ return ret;
}
/**
/* Read more? */
if (read < len) {
/* Update Page size */
- from += mtd->writesize;
+ from += this->writesize;
column = 0;
}
}
* @param mtd MTD device structure
* @param buf the databuffer to verify
* @param to offset to read from
- *
*/
static int onenand_verify_oob(struct mtd_info *mtd, const u_char *buf, loff_t to)
{
* @param buf the databuffer to verify
* @param addr offset to read from
* @param len number of bytes to read and compare
- *
*/
static int onenand_verify(struct mtd_info *mtd, const u_char *buf, loff_t addr, size_t len)
{
int thislen, column;
while (len != 0) {
- thislen = min_t(int, mtd->writesize, len);
- column = addr & (mtd->writesize - 1);
- if (column + thislen > mtd->writesize)
- thislen = mtd->writesize - column;
+ thislen = min_t(int, this->writesize, len);
+ column = addr & (this->writesize - 1);
+ if (column + thislen > this->writesize)
+ thislen = this->writesize - column;
- this->command(mtd, ONENAND_CMD_READ, addr, mtd->writesize);
+ this->command(mtd, ONENAND_CMD_READ, addr, this->writesize);
onenand_update_bufferram(mtd, addr, 0);
#define NOTALIGNED(x) ((x & (this->subpagesize - 1)) != 0)
/**
- * onenand_write - [MTD Interface] write buffer to FLASH
+ * onenand_fill_auto_oob - [Internal] oob auto-placement transfer
+ * @param mtd MTD device structure
+ * @param oob_buf oob buffer
+ * @param buf source address
+ * @param column oob offset to write to
+ * @param thislen oob length to write
+ */
+static int onenand_fill_auto_oob(struct mtd_info *mtd, u_char *oob_buf,
+ const u_char *buf, int column, int thislen)
+{
+ struct onenand_chip *this = mtd->priv;
+ struct nand_oobfree *free;
+ int writecol = column;
+ int writeend = column + thislen;
+ int lastgap = 0;
+ unsigned int i;
+
+ free = this->ecclayout->oobfree;
+ for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES && free->length; i++, free++) {
+ if (writecol >= lastgap)
+ writecol += free->offset - lastgap;
+ if (writeend >= lastgap)
+ writeend += free->offset - lastgap;
+ lastgap = free->offset + free->length;
+ }
+ free = this->ecclayout->oobfree;
+ for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES && free->length; i++, free++) {
+ int free_end = free->offset + free->length;
+ if (free->offset < writeend && free_end > writecol) {
+ int st = max_t(int,free->offset,writecol);
+ int ed = min_t(int,free_end,writeend);
+ int n = ed - st;
+ memcpy(oob_buf + st, buf, n);
+ buf += n;
+ } else if (column == 0)
+ break;
+ }
+ return 0;
+}
+
+/**
+ * onenand_write_ops_nolock - [OneNAND Interface] write main and/or out-of-band
* @param mtd MTD device structure
* @param to offset to write to
- * @param len number of bytes to write
- * @param retlen pointer to variable to store the number of written bytes
- * @param buf the data to write
+ * @param ops oob operation description structure
*
- * Write with ECC
+ * Write main and/or oob with ECC
*/
-static int onenand_write(struct mtd_info *mtd, loff_t to, size_t len,
- size_t *retlen, const u_char *buf)
+static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to,
+ struct mtd_oob_ops *ops)
{
struct onenand_chip *this = mtd->priv;
- int written = 0;
+ int written = 0, column, thislen, subpage;
+ int oobwritten = 0, oobcolumn, thisooblen, oobsize;
+ size_t len = ops->len;
+ size_t ooblen = ops->ooblen;
+ const u_char *buf = ops->datbuf;
+ const u_char *oob = ops->oobbuf;
+ u_char *oobbuf;
int ret = 0;
- int column, subpage;
- DEBUG(MTD_DEBUG_LEVEL3, "onenand_write: to = 0x%08x, len = %i\n", (unsigned int) to, (int) len);
+ DEBUG(MTD_DEBUG_LEVEL3, "onenand_write_ops_nolock: to = 0x%08x, len = %i\n", (unsigned int) to, (int) len);
/* Initialize retlen, in case of early exit */
- *retlen = 0;
+ ops->retlen = 0;
+ ops->oobretlen = 0;
/* Do not allow writes past end of device */
if (unlikely((to + len) > mtd->size)) {
- printk(KERN_ERR "onenand_write: Attempt write to past end of device\n");
+ printk(KERN_ERR "onenand_write_ops_nolock: Attempt write to past end of device\n");
return -EINVAL;
}
/* Reject writes, which are not page aligned */
if (unlikely(NOTALIGNED(to)) || unlikely(NOTALIGNED(len))) {
- printk(KERN_ERR "onenand_write: Attempt to write not page aligned data\n");
+ printk(KERN_ERR "onenand_write_ops_nolock: Attempt to write not page aligned data\n");
return -EINVAL;
}
- column = to & (mtd->writesize - 1);
+ if (ops->mode == MTD_OOB_AUTO)
+ oobsize = this->ecclayout->oobavail;
+ else
+ oobsize = mtd->oobsize;
- /* Grab the lock and see if the device is available */
- onenand_get_device(mtd, FL_WRITING);
+ oobcolumn = to & (mtd->oobsize - 1);
+
+ column = to & (mtd->writesize - 1);
/* Loop until all data write */
while (written < len) {
- int thislen = min_t(int, mtd->writesize - column, len - written);
u_char *wbuf = (u_char *) buf;
+ thislen = min_t(int, mtd->writesize - column, len - written);
+ thisooblen = min_t(int, oobsize - oobcolumn, ooblen - oobwritten);
+
cond_resched();
this->command(mtd, ONENAND_CMD_BUFFERRAM, to, thislen);
}
this->write_bufferram(mtd, ONENAND_DATARAM, wbuf, 0, mtd->writesize);
- this->write_bufferram(mtd, ONENAND_SPARERAM, ffchars, 0, mtd->oobsize);
+
+ if (oob) {
+ oobbuf = this->oob_buf;
+
+ /* We send data to spare ram with oobsize
+ * to prevent byte access */
+ memset(oobbuf, 0xff, mtd->oobsize);
+ if (ops->mode == MTD_OOB_AUTO)
+ onenand_fill_auto_oob(mtd, oobbuf, oob, oobcolumn, thisooblen);
+ else
+ memcpy(oobbuf + oobcolumn, oob, thisooblen);
+
+ oobwritten += thisooblen;
+ oob += thisooblen;
+ oobcolumn = 0;
+ } else
+ oobbuf = (u_char *) ffchars;
+
+ this->write_bufferram(mtd, ONENAND_SPARERAM, oobbuf, 0, mtd->oobsize);
this->command(mtd, ONENAND_CMD_PROG, to, mtd->writesize);
/* In partial page write we don't update bufferram */
onenand_update_bufferram(mtd, to, !ret && !subpage);
+ if (ONENAND_IS_2PLANE(this)) {
+ ONENAND_SET_BUFFERRAM1(this);
+ onenand_update_bufferram(mtd, to + this->writesize, !ret && !subpage);
+ }
if (ret) {
- printk(KERN_ERR "onenand_write: write filaed %d\n", ret);
+ printk(KERN_ERR "onenand_write_ops_nolock: write filaed %d\n", ret);
break;
}
/* Only check verify write turn on */
ret = onenand_verify(mtd, (u_char *) wbuf, to, thislen);
if (ret) {
- printk(KERN_ERR "onenand_write: verify failed %d\n", ret);
+ printk(KERN_ERR "onenand_write_ops_nolock: verify failed %d\n", ret);
break;
}
/* Deselect and wake up anyone waiting on the device */
onenand_release_device(mtd);
- *retlen = written;
+ ops->retlen = written;
return ret;
}
-/**
- * onenand_fill_auto_oob - [Internal] oob auto-placement transfer
- * @param mtd MTD device structure
- * @param oob_buf oob buffer
- * @param buf source address
- * @param column oob offset to write to
- * @param thislen oob length to write
- */
-static int onenand_fill_auto_oob(struct mtd_info *mtd, u_char *oob_buf,
- const u_char *buf, int column, int thislen)
-{
- struct onenand_chip *this = mtd->priv;
- struct nand_oobfree *free;
- int writecol = column;
- int writeend = column + thislen;
- int lastgap = 0;
- unsigned int i;
-
- free = this->ecclayout->oobfree;
- for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES && free->length; i++, free++) {
- if (writecol >= lastgap)
- writecol += free->offset - lastgap;
- if (writeend >= lastgap)
- writeend += free->offset - lastgap;
- lastgap = free->offset + free->length;
- }
- free = this->ecclayout->oobfree;
- for (i = 0; i < MTD_MAX_OOBFREE_ENTRIES && free->length; i++, free++) {
- int free_end = free->offset + free->length;
- if (free->offset < writeend && free_end > writecol) {
- int st = max_t(int,free->offset,writecol);
- int ed = min_t(int,free_end,writeend);
- int n = ed - st;
- memcpy(oob_buf + st, buf, n);
- buf += n;
- } else if (column == 0)
- break;
- }
- return 0;
-}
/**
- * onenand_do_write_oob - [Internal] OneNAND write out-of-band
+ * onenand_write_oob_nolock - [Internal] OneNAND write out-of-band
* @param mtd MTD device structure
* @param to offset to write to
* @param len number of bytes to write
*
* OneNAND write out-of-band
*/
-static int onenand_do_write_oob(struct mtd_info *mtd, loff_t to,
- struct mtd_oob_ops *ops)
+static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to,
+ struct mtd_oob_ops *ops)
{
struct onenand_chip *this = mtd->priv;
int column, ret = 0, oobsize;
to += ops->ooboffs;
- DEBUG(MTD_DEBUG_LEVEL3, "onenand_write_oob: to = 0x%08x, len = %i\n", (unsigned int) to, (int) len);
+ DEBUG(MTD_DEBUG_LEVEL3, "onenand_write_oob_nolock: to = 0x%08x, len = %i\n", (unsigned int) to, (int) len);
/* Initialize retlen, in case of early exit */
ops->oobretlen = 0;
column = to & (mtd->oobsize - 1);
if (unlikely(column >= oobsize)) {
- printk(KERN_ERR "onenand_write_oob: Attempted to start write outside oob\n");
+ printk(KERN_ERR "onenand_write_oob_nolock: Attempted to start write outside oob\n");
return -EINVAL;
}
/* For compatibility with NAND: Do not allow write past end of page */
if (unlikely(column + len > oobsize)) {
- printk(KERN_ERR "onenand_write_oob: "
+ printk(KERN_ERR "onenand_write_oob_nolock: "
"Attempt to write past end of page\n");
return -EINVAL;
}
if (unlikely(to >= mtd->size ||
column + len > ((mtd->size >> this->page_shift) -
(to >> this->page_shift)) * oobsize)) {
- printk(KERN_ERR "onenand_write_oob: Attempted to write past end of device\n");
+ printk(KERN_ERR "onenand_write_oob_nolock: Attempted to write past end of device\n");
return -EINVAL;
}
- /* Grab the lock and see if the device is available */
- onenand_get_device(mtd, FL_WRITING);
-
oobbuf = this->oob_buf;
/* Loop until all data write */
this->command(mtd, ONENAND_CMD_PROGOOB, to, mtd->oobsize);
onenand_update_bufferram(mtd, to, 0);
+ if (ONENAND_IS_2PLANE(this)) {
+ ONENAND_SET_BUFFERRAM1(this);
+ onenand_update_bufferram(mtd, to + this->writesize, 0);
+ }
ret = this->wait(mtd, FL_WRITING);
if (ret) {
- printk(KERN_ERR "onenand_write_oob: write failed %d\n", ret);
+ printk(KERN_ERR "onenand_write_oob_nolock: write failed %d\n", ret);
break;
}
ret = onenand_verify_oob(mtd, oobbuf, to);
if (ret) {
- printk(KERN_ERR "onenand_write_oob: verify failed %d\n", ret);
+ printk(KERN_ERR "onenand_write_oob_nolock: verify failed %d\n", ret);
break;
}
column = 0;
}
- /* Deselect and wake up anyone waiting on the device */
- onenand_release_device(mtd);
-
ops->oobretlen = written;
return ret;
}
+/**
+ * onenand_write - [MTD Interface] write buffer to FLASH
+ * @param mtd MTD device structure
+ * @param to offset to write to
+ * @param len number of bytes to write
+ * @param retlen pointer to variable to store the number of written bytes
+ * @param buf the data to write
+ *
+ * Write with ECC
+ */
+static int onenand_write(struct mtd_info *mtd, loff_t to, size_t len,
+ size_t *retlen, const u_char *buf)
+{
+ struct mtd_oob_ops ops = {
+ .len = len,
+ .ooblen = 0,
+ .datbuf = (u_char *) buf,
+ .oobbuf = NULL,
+ };
+ int ret;
+
+ onenand_get_device(mtd, FL_WRITING);
+ ret = onenand_write_ops_nolock(mtd, to, &ops);
+ onenand_release_device(mtd);
+
+ *retlen = ops.retlen;
+ return ret;
+}
+
/**
* onenand_write_oob - [MTD Interface] NAND write data and/or out-of-band
* @param mtd: MTD device structure
static int onenand_write_oob(struct mtd_info *mtd, loff_t to,
struct mtd_oob_ops *ops)
{
+ int ret;
+
switch (ops->mode) {
case MTD_OOB_PLACE:
case MTD_OOB_AUTO:
default:
return -EINVAL;
}
- return onenand_do_write_oob(mtd, to, ops);
+
+ onenand_get_device(mtd, FL_WRITING);
+ if (ops->datbuf)
+ ret = onenand_write_ops_nolock(mtd, to, ops);
+ else
+ ret = onenand_write_oob_nolock(mtd, to, ops);
+ onenand_release_device(mtd);
+
+ return ret;
}
/**
- * onenand_block_checkbad - [GENERIC] Check if a block is marked bad
+ * onenand_block_isbad_nolock - [GENERIC] Check if a block is marked bad
* @param mtd MTD device structure
* @param ofs offset from device start
- * @param getchip 0, if the chip is already selected
* @param allowbbt 1, if its allowed to access the bbt area
*
* Check, if the block is bad. Either by reading the bad block table or
* calling of the scan function.
*/
-static int onenand_block_checkbad(struct mtd_info *mtd, loff_t ofs, int getchip, int allowbbt)
+static int onenand_block_isbad_nolock(struct mtd_info *mtd, loff_t ofs, int allowbbt)
{
struct onenand_chip *this = mtd->priv;
struct bbm_info *bbm = this->bbm;
cond_resched();
/* Check if we have a bad block, we do not erase bad blocks */
- if (onenand_block_checkbad(mtd, addr, 0, 0)) {
+ if (onenand_block_isbad_nolock(mtd, addr, 0)) {
printk (KERN_WARNING "onenand_erase: attempt to erase a bad block at addr 0x%08x\n", (unsigned int) addr);
instr->state = MTD_ERASE_FAILED;
goto erase_exit;
erase_exit:
ret = instr->state == MTD_ERASE_DONE ? 0 : -EIO;
- /* Do call back function */
- if (!ret)
- mtd_erase_callback(instr);
/* Deselect and wake up anyone waiting on the device */
onenand_release_device(mtd);
+ /* Do call back function */
+ if (!ret)
+ mtd_erase_callback(instr);
+
return ret;
}
*/
static int onenand_block_isbad(struct mtd_info *mtd, loff_t ofs)
{
+ int ret;
+
/* Check for invalid offset */
if (ofs > mtd->size)
return -EINVAL;
- return onenand_block_checkbad(mtd, ofs, 1, 0);
+ onenand_get_device(mtd, FL_READING);
+ ret = onenand_block_isbad_nolock(mtd, ofs, 0);
+ onenand_release_device(mtd);
+ return ret;
}
/**
/* We write two bytes, so we dont have to mess with 16 bit access */
ofs += mtd->oobsize + (bbm->badblockpos & ~0x01);
- return onenand_do_write_oob(mtd, ofs, &ops);
+ return onenand_write_oob_nolock(mtd, ofs, &ops);
}
/**
return ret;
}
- return this->block_markbad(mtd, ofs);
+ onenand_get_device(mtd, FL_WRITING);
+ ret = this->block_markbad(mtd, ofs);
+ onenand_release_device(mtd);
+ return ret;
}
/**
*/
static int onenand_lock(struct mtd_info *mtd, loff_t ofs, size_t len)
{
- return onenand_do_lock_cmd(mtd, ofs, len, ONENAND_CMD_LOCK);
+ int ret;
+
+ onenand_get_device(mtd, FL_LOCKING);
+ ret = onenand_do_lock_cmd(mtd, ofs, len, ONENAND_CMD_LOCK);
+ onenand_release_device(mtd);
+ return ret;
}
/**
*/
static int onenand_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
{
- return onenand_do_lock_cmd(mtd, ofs, len, ONENAND_CMD_UNLOCK);
+ int ret;
+
+ onenand_get_device(mtd, FL_LOCKING);
+ ret = onenand_do_lock_cmd(mtd, ofs, len, ONENAND_CMD_UNLOCK);
+ onenand_release_device(mtd);
+ return ret;
}
/**
loff_t ofs = this->chipsize >> 1;
size_t len = mtd->erasesize;
- onenand_unlock(mtd, ofs, len);
+ onenand_do_lock_cmd(mtd, ofs, len, ONENAND_CMD_UNLOCK);
}
onenand_check_lock_status(this);
return 0;
}
- onenand_unlock(mtd, 0x0, this->chipsize);
+ onenand_do_lock_cmd(mtd, 0x0, this->chipsize, ONENAND_CMD_UNLOCK);
return 0;
}
size_t *retlen, u_char *buf)
{
struct onenand_chip *this = mtd->priv;
+ struct mtd_oob_ops ops = {
+ .len = len,
+ .ooblen = 0,
+ .datbuf = buf,
+ .oobbuf = NULL,
+ };
int ret;
/* Enter OTP access mode */
this->command(mtd, ONENAND_CMD_OTP_ACCESS, 0, 0);
this->wait(mtd, FL_OTPING);
- ret = mtd->read(mtd, from, len, retlen, buf);
+ ret = onenand_read_ops_nolock(mtd, from, &ops);
/* Exit OTP access mode */
this->command(mtd, ONENAND_CMD_RESET, 0, 0);
/**
* do_otp_write - [DEFAULT] Write OTP block area
* @param mtd MTD device structure
- * @param from The offset to write
+ * @param to The offset to write
* @param len number of bytes to write
* @param retlen pointer to variable to store the number of write bytes
* @param buf the databuffer to put/get data
*
* Write OTP block area.
*/
-static int do_otp_write(struct mtd_info *mtd, loff_t from, size_t len,
+static int do_otp_write(struct mtd_info *mtd, loff_t to, size_t len,
size_t *retlen, u_char *buf)
{
struct onenand_chip *this = mtd->priv;
unsigned char *pbuf = buf;
int ret;
+ struct mtd_oob_ops ops;
/* Force buffer page aligned */
if (len < mtd->writesize) {
this->command(mtd, ONENAND_CMD_OTP_ACCESS, 0, 0);
this->wait(mtd, FL_OTPING);
- ret = mtd->write(mtd, from, len, retlen, pbuf);
+ ops.len = len;
+ ops.ooblen = 0;
+ ops.datbuf = pbuf;
+ ops.oobbuf = NULL;
+ ret = onenand_write_ops_nolock(mtd, to, &ops);
+ *retlen = ops.retlen;
/* Exit OTP access mode */
this->command(mtd, ONENAND_CMD_RESET, 0, 0);
this->command(mtd, ONENAND_CMD_OTP_ACCESS, 0, 0);
this->wait(mtd, FL_OTPING);
- ret = onenand_do_write_oob(mtd, from, &ops);
+ ret = onenand_write_oob_nolock(mtd, from, &ops);
*retlen = ops.oobretlen;
if (((mtd->writesize * otp_pages) - (from + len)) < 0)
return 0;
+ onenand_get_device(mtd, FL_OTPING);
while (len > 0 && otp_pages > 0) {
if (!action) { /* OTP Info functions */
struct otp_info *otpinfo;
len -= sizeof(struct otp_info);
- if (len <= 0)
- return -ENOSPC;
+ if (len <= 0) {
+ ret = -ENOSPC;
+ break;
+ }
otpinfo = (struct otp_info *) buf;
otpinfo->start = from;
len -= size;
*retlen += size;
- if (ret < 0)
- return ret;
+ if (ret)
+ break;
}
otp_pages--;
}
+ onenand_release_device(mtd);
- return 0;
+ return ret;
}
/**
*
* Check and set OneNAND features
* - lock scheme
+ * - two plane
*/
static void onenand_check_features(struct mtd_info *mtd)
{
process = this->version_id >> ONENAND_VERSION_PROCESS_SHIFT;
/* Lock scheme */
- if (density >= ONENAND_DEVICE_DENSITY_1Gb) {
+ switch (density) {
+ case ONENAND_DEVICE_DENSITY_4Gb:
+ this->options |= ONENAND_HAS_2PLANE;
+
+ case ONENAND_DEVICE_DENSITY_2Gb:
+ /* 2Gb DDP don't have 2 plane */
+ if (!ONENAND_IS_DDP(this))
+ this->options |= ONENAND_HAS_2PLANE;
+ this->options |= ONENAND_HAS_UNLOCK_ALL;
+
+ case ONENAND_DEVICE_DENSITY_1Gb:
/* A-Die has all block unlock */
- if (process) {
- printk(KERN_DEBUG "Chip support all block unlock\n");
+ if (process)
this->options |= ONENAND_HAS_UNLOCK_ALL;
- }
- } else {
- /* Some OneNAND has continues lock scheme */
- if (!process) {
- printk(KERN_DEBUG "Lock scheme is Continues Lock\n");
+ break;
+
+ default:
+ /* Some OneNAND has continuous lock scheme */
+ if (!process)
this->options |= ONENAND_HAS_CONT_LOCK;
- }
+ break;
}
+
+ if (this->options & ONENAND_HAS_CONT_LOCK)
+ printk(KERN_DEBUG "Lock scheme is Continuous Lock\n");
+ if (this->options & ONENAND_HAS_UNLOCK_ALL)
+ printk(KERN_DEBUG "Chip support all block unlock\n");
+ if (this->options & ONENAND_HAS_2PLANE)
+ printk(KERN_DEBUG "Chip has 2 plane\n");
}
/**
(16 << density),
vcc ? "2.65/3.3" : "1.8",
device);
- printk(KERN_DEBUG "OneNAND version = 0x%04x\n", version);
+ printk(KERN_INFO "OneNAND version = 0x%04x\n", version);
}
static const struct onenand_manufacturers onenand_manuf_ids[] = {
this->erase_shift = ffs(mtd->erasesize) - 1;
this->page_shift = ffs(mtd->writesize) - 1;
this->page_mask = (1 << (this->erase_shift - this->page_shift)) - 1;
+ /* It's real page size */
+ this->writesize = mtd->writesize;
/* REVIST: Multichip handling */
/* Check OneNAND features */
onenand_check_features(mtd);
+ /*
+ * We emulate the 4KiB page and 256KiB erase block size
+ * But oobsize is still 64 bytes.
+ * It is only valid if you turn on 2X program support,
+ * Otherwise it will be ignored by compiler.
+ */
+ if (ONENAND_IS_2PLANE(this)) {
+ mtd->writesize <<= 1;
+ mtd->erasesize <<= 1;
+ }
+
return 0;
}
projects / linux-2.6-omap-h63xx.git / blobdiff