Merge branch 'master' of /home/trondmy/kernel/linux-2.6/

Conflicts:

	include/linux/nfs_fs.h

Fixed up conflict with kernel header updates.

1 files changed, 479 insertions, 239 deletions

diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index a53a73fc2a5..84ec40d2543 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -23,8 +23,7 @@
 /**
  * onenand_oob_64 - oob info for large (2KB) page
  */
-static struct nand_oobinfo onenand_oob_64 = {
-        .useecc         = MTD_NANDECC_AUTOPLACE,
+static struct nand_ecclayout onenand_oob_64 = {
         .eccbytes       = 20,
         .eccpos         = {
                 8, 9, 10, 11, 12,
@@ -34,14 +33,14 @@ static struct nand_oobinfo onenand_oob_64 = {
                 },
         .oobfree        = {
                 {2, 3}, {14, 2}, {18, 3}, {30, 2},
-                {24, 3}, {46, 2}, {40, 3}, {62, 2} }
+                {34, 3}, {46, 2}, {50, 3}, {62, 2}
+        }
 };
 
 /**
  * onenand_oob_32 - oob info for middle (1KB) page
  */
-static struct nand_oobinfo onenand_oob_32 = {
-        .useecc         = MTD_NANDECC_AUTOPLACE,
+static struct nand_ecclayout onenand_oob_32 = {
         .eccbytes       = 10,
         .eccpos         = {
                 8, 9, 10, 11, 12,
@@ -190,7 +189,7 @@ static int onenand_buffer_address(int dataram1, int sectors, int count)
 static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t len)
 {
         struct onenand_chip *this = mtd->priv;
-        int value, readcmd = 0;
+        int value, readcmd = 0, block_cmd = 0;
         int block, page;
         /* Now we use page size operation */
         int sectors = 4, count = 4;
@@ -206,6 +205,8 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le
 
         case ONENAND_CMD_ERASE:
         case ONENAND_CMD_BUFFERRAM:
+        case ONENAND_CMD_OTP_ACCESS:
+                block_cmd = 1;
                 block = (int) (addr >> this->erase_shift);
                 page = -1;
                 break;
@@ -233,6 +234,12 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le
                 /* Write 'DFS, FBA' of Flash */
                 value = onenand_block_address(this, block);
                 this->write_word(value, this->base + ONENAND_REG_START_ADDRESS1);
+
+                if (block_cmd) {
+                        /* Select DataRAM for DDP */
+                        value = onenand_bufferram_address(this, block);
+                        this->write_word(value, this->base + ONENAND_REG_START_ADDRESS2);
+                }
         }
 
         if (page != -1) {
@@ -301,6 +308,7 @@ static int onenand_wait(struct mtd_info *mtd, int state)
 
                 if (state != FL_READING)
                         cond_resched();
+                touch_softlockup_watchdog();
         }
         /* To get correct interrupt status in timeout case */
         interrupt = this->read_word(this->base + ONENAND_REG_INTERRUPT);
@@ -344,7 +352,7 @@ static inline int onenand_bufferram_offset(struct mtd_info *mtd, int area)
 
         if (ONENAND_CURRENT_BUFFERRAM(this)) {
                 if (area == ONENAND_DATARAM)
-                        return mtd->oobblock;
+                        return mtd->writesize;
                 if (area == ONENAND_SPARERAM)
                         return mtd->oobsize;
         }
@@ -372,6 +380,17 @@ static int onenand_read_bufferram(struct mtd_info *mtd, int area,
 
         bufferram += onenand_bufferram_offset(mtd, area);
 
+        if (ONENAND_CHECK_BYTE_ACCESS(count)) {
+                unsigned short word;
+
+                /* Align with word(16-bit) size */
+                count--;
+
+                /* Read word and save byte */
+                word = this->read_word(bufferram + offset + count);
+                buffer[count] = (word & 0xff);
+        }
+
         memcpy(buffer, bufferram + offset, count);
 
         return 0;
@@ -399,6 +418,17 @@ static int onenand_sync_read_bufferram(struct mtd_info *mtd, int area,
 
         this->mmcontrol(mtd, ONENAND_SYS_CFG1_SYNC_READ);
 
+        if (ONENAND_CHECK_BYTE_ACCESS(count)) {
+                unsigned short word;
+
+                /* Align with word(16-bit) size */
+                count--;
+
+                /* Read word and save byte */
+                word = this->read_word(bufferram + offset + count);
+                buffer[count] = (word & 0xff);
+        }
+
         memcpy(buffer, bufferram + offset, count);
 
         this->mmcontrol(mtd, 0);
@@ -426,6 +456,22 @@ static int onenand_write_bufferram(struct mtd_info *mtd, int area,
 
         bufferram += onenand_bufferram_offset(mtd, area);
 
+        if (ONENAND_CHECK_BYTE_ACCESS(count)) {
+                unsigned short word;
+                int byte_offset;
+
+                /* Align with word(16-bit) size */
+                count--;
+
+                /* Calculate byte access offset */
+                byte_offset = offset + count;
+
+                /* Read word and save byte */
+                word = this->read_word(bufferram + byte_offset);
+                word = (word & ~0xff) | buffer[count];
+                this->write_word(word, bufferram + byte_offset);
+        }
+
         memcpy(bufferram + offset, buffer, count);
 
         return 0;
@@ -549,31 +595,28 @@ static void onenand_release_device(struct mtd_info *mtd)
 }
 
 /**
- * onenand_read_ecc - [MTD Interface] Read data with ECC
+ * 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
- * @param oob_buf       filesystem supplied oob data buffer
- * @param oobsel        oob selection structure
  *
- * OneNAND read with ECC
- */
-static int onenand_read_ecc(struct mtd_info *mtd, loff_t from, size_t len,
-        size_t *retlen, u_char *buf,
-        u_char *oob_buf, struct nand_oobinfo *oobsel)
+ * Read with ecc
+*/
+static int onenand_read(struct mtd_info *mtd, loff_t from, size_t len,
+        size_t *retlen, u_char *buf)
 {
         struct onenand_chip *this = mtd->priv;
         int read = 0, column;
         int thislen;
         int ret = 0;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "onenand_read_ecc: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len);
+        DEBUG(MTD_DEBUG_LEVEL3, "onenand_read: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len);
 
         /* Do not allow reads past end of device */
         if ((from + len) > mtd->size) {
-                DEBUG(MTD_DEBUG_LEVEL0, "onenand_read_ecc: Attempt read beyond end of device\n");
+                DEBUG(MTD_DEBUG_LEVEL0, "onenand_read: Attempt read beyond end of device\n");
                 *retlen = 0;
                 return -EINVAL;
         }
@@ -584,14 +627,14 @@ static int onenand_read_ecc(struct mtd_info *mtd, loff_t from, size_t len,
         /* TODO handling oob */
 
         while (read < len) {
-                thislen = min_t(int, mtd->oobblock, len - read);
+                thislen = min_t(int, mtd->writesize, len - read);
 
-                column = from & (mtd->oobblock - 1);
-                if (column + thislen > mtd->oobblock)
-                        thislen = mtd->oobblock - column;
+                column = from & (mtd->writesize - 1);
+                if (column + thislen > mtd->writesize)
+                        thislen = mtd->writesize - column;
 
                 if (!onenand_check_bufferram(mtd, from)) {
-                        this->command(mtd, ONENAND_CMD_READ, from, mtd->oobblock);
+                        this->command(mtd, ONENAND_CMD_READ, from, mtd->writesize);
 
                         ret = this->wait(mtd, FL_READING);
                         /* First copy data and check return value for ECC handling */
@@ -606,7 +649,7 @@ static int onenand_read_ecc(struct mtd_info *mtd, loff_t from, size_t len,
                         break;
 
                 if (ret) {
-                        DEBUG(MTD_DEBUG_LEVEL0, "onenand_read_ecc: read failed = %d\n", ret);
+                        DEBUG(MTD_DEBUG_LEVEL0, "onenand_read: read failed = %d\n", ret);
                         goto out;
                 }
 
@@ -628,23 +671,7 @@ out:
 }
 
 /**
- * onenand_read - [MTD Interface] MTD compability function for onenand_read_ecc
- * @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
- *
- * This function simply calls onenand_read_ecc with oob buffer and oobsel = NULL
-*/
-static int onenand_read(struct mtd_info *mtd, loff_t from, size_t len,
-        size_t *retlen, u_char *buf)
-{
-        return onenand_read_ecc(mtd, from, len, retlen, buf, NULL, NULL);
-}
-
-/**
- * onenand_read_oob - [MTD Interface] OneNAND read out-of-band
+ * onenand_do_read_oob - [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
@@ -653,8 +680,8 @@ static int onenand_read(struct mtd_info *mtd, loff_t from, size_t len,
  *
  * OneNAND read out-of-band data from the spare area
  */
-static int onenand_read_oob(struct mtd_info *mtd, loff_t from, size_t len,
-        size_t *retlen, u_char *buf)
+int onenand_do_read_oob(struct mtd_info *mtd, loff_t from, size_t len,
+                        size_t *retlen, u_char *buf)
 {
         struct onenand_chip *this = mtd->priv;
         int read = 0, thislen, column;
@@ -704,7 +731,7 @@ static int onenand_read_oob(struct mtd_info *mtd, loff_t from, size_t len,
                 /* Read more? */
                 if (read < len) {
                         /* Page size */
-                        from += mtd->oobblock;
+                        from += mtd->writesize;
                         column = 0;
                 }
         }
@@ -717,8 +744,53 @@ out:
         return ret;
 }
 
+/**
+ * onenand_read_oob - [MTD Interface] NAND write data and/or out-of-band
+ * @mtd:        MTD device structure
+ * @from:       offset to read from
+ * @ops:        oob operation description structure
+ */
+static int onenand_read_oob(struct mtd_info *mtd, loff_t from,
+                            struct mtd_oob_ops *ops)
+{
+        BUG_ON(ops->mode != MTD_OOB_PLACE);
+
+        return onenand_do_read_oob(mtd, from + ops->ooboffs, ops->len,
+                                   &ops->retlen, ops->oobbuf);
+}
+
 #ifdef CONFIG_MTD_ONENAND_VERIFY_WRITE
 /**
+ * onenand_verify_oob - [GENERIC] verify the oob contents after a write
+ * @param mtd           MTD device structure
+ * @param buf           the databuffer to verify
+ * @param to            offset to read from
+ * @param len           number of bytes to read and compare
+ *
+ */
+static int onenand_verify_oob(struct mtd_info *mtd, const u_char *buf, loff_t to, int len)
+{
+        struct onenand_chip *this = mtd->priv;
+        char *readp = this->page_buf;
+        int column = to & (mtd->oobsize - 1);
+        int status, i;
+
+        this->command(mtd, ONENAND_CMD_READOOB, to, mtd->oobsize);
+        onenand_update_bufferram(mtd, to, 0);
+        status = this->wait(mtd, FL_READING);
+        if (status)
+                return status;
+
+        this->read_bufferram(mtd, ONENAND_SPARERAM, readp, column, len);
+
+        for(i = 0; i < len; i++)
+                if (buf[i] != 0xFF && buf[i] != readp[i])
+                        return -EBADMSG;
+
+        return 0;
+}
+
+/**
  * onenand_verify_page - [GENERIC] verify the chip contents after a write
  * @param mtd           MTD device structure
  * @param buf           the databuffer to verify
@@ -731,7 +803,7 @@ static int onenand_verify_page(struct mtd_info *mtd, u_char *buf, loff_t addr)
         void __iomem *dataram0, *dataram1;
         int ret = 0;
 
-        this->command(mtd, ONENAND_CMD_READ, addr, mtd->oobblock);
+        this->command(mtd, ONENAND_CMD_READ, addr, mtd->writesize);
 
         ret = this->wait(mtd, FL_READING);
         if (ret)
@@ -741,53 +813,51 @@ static int onenand_verify_page(struct mtd_info *mtd, u_char *buf, loff_t addr)
 
         /* Check, if the two dataram areas are same */
         dataram0 = this->base + ONENAND_DATARAM;
-        dataram1 = dataram0 + mtd->oobblock;
+        dataram1 = dataram0 + mtd->writesize;
 
-        if (memcmp(dataram0, dataram1, mtd->oobblock))
+        if (memcmp(dataram0, dataram1, mtd->writesize))
                 return -EBADMSG;
 
         return 0;
 }
 #else
 #define onenand_verify_page(...)        (0)
+#define onenand_verify_oob(...)         (0)
 #endif
 
-#define NOTALIGNED(x)   ((x & (mtd->oobblock - 1)) != 0)
+#define NOTALIGNED(x)   ((x & (mtd->writesize - 1)) != 0)
 
 /**
- * onenand_write_ecc - [MTD Interface] OneNAND write with ECC
+ * 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
- * @param eccbuf        filesystem supplied oob data buffer
- * @param oobsel        oob selection structure
  *
- * OneNAND write with ECC
+ * Write with ECC
  */
-static int onenand_write_ecc(struct mtd_info *mtd, loff_t to, size_t len,
-        size_t *retlen, const u_char *buf,
-        u_char *eccbuf, struct nand_oobinfo *oobsel)
+static int onenand_write(struct mtd_info *mtd, loff_t to, size_t len,
+        size_t *retlen, const u_char *buf)
 {
         struct onenand_chip *this = mtd->priv;
         int written = 0;
         int ret = 0;
 
-        DEBUG(MTD_DEBUG_LEVEL3, "onenand_write_ecc: to = 0x%08x, len = %i\n", (unsigned int) to, (int) len);
+        DEBUG(MTD_DEBUG_LEVEL3, "onenand_write: to = 0x%08x, len = %i\n", (unsigned int) to, (int) len);
 
         /* Initialize retlen, in case of early exit */
         *retlen = 0;
 
         /* Do not allow writes past end of device */
         if (unlikely((to + len) > mtd->size)) {
-                DEBUG(MTD_DEBUG_LEVEL0, "onenand_write_ecc: Attempt write to past end of device\n");
+                DEBUG(MTD_DEBUG_LEVEL0, "onenand_write: Attempt write to past end of device\n");
                 return -EINVAL;
         }
 
         /* Reject writes, which are not page aligned */
         if (unlikely(NOTALIGNED(to)) || unlikely(NOTALIGNED(len))) {
-                DEBUG(MTD_DEBUG_LEVEL0, "onenand_write_ecc: Attempt to write not page aligned data\n");
+                DEBUG(MTD_DEBUG_LEVEL0, "onenand_write: Attempt to write not page aligned data\n");
                 return -EINVAL;
         }
 
@@ -796,20 +866,20 @@ static int onenand_write_ecc(struct mtd_info *mtd, loff_t to, size_t len,
 
         /* Loop until all data write */
         while (written < len) {
-                int thislen = min_t(int, mtd->oobblock, len - written);
+                int thislen = min_t(int, mtd->writesize, len - written);
 
-                this->command(mtd, ONENAND_CMD_BUFFERRAM, to, mtd->oobblock);
+                this->command(mtd, ONENAND_CMD_BUFFERRAM, to, mtd->writesize);
 
                 this->write_bufferram(mtd, ONENAND_DATARAM, buf, 0, thislen);
                 this->write_bufferram(mtd, ONENAND_SPARERAM, ffchars, 0, mtd->oobsize);
 
-                this->command(mtd, ONENAND_CMD_PROG, to, mtd->oobblock);
+                this->command(mtd, ONENAND_CMD_PROG, to, mtd->writesize);
 
                 onenand_update_bufferram(mtd, to, 1);
 
                 ret = this->wait(mtd, FL_WRITING);
                 if (ret) {
-                        DEBUG(MTD_DEBUG_LEVEL0, "onenand_write_ecc: write filaed %d\n", ret);
+                        DEBUG(MTD_DEBUG_LEVEL0, "onenand_write: write filaed %d\n", ret);
                         goto out;
                 }
 
@@ -818,7 +888,7 @@ static int onenand_write_ecc(struct mtd_info *mtd, loff_t to, size_t len,
                 /* Only check verify write turn on */
                 ret = onenand_verify_page(mtd, (u_char *) buf, to);
                 if (ret) {
-                        DEBUG(MTD_DEBUG_LEVEL0, "onenand_write_ecc: verify failed %d\n", ret);
+                        DEBUG(MTD_DEBUG_LEVEL0, "onenand_write: verify failed %d\n", ret);
                         goto out;
                 }
 
@@ -839,24 +909,7 @@ out:
 }
 
 /**
- * onenand_write - [MTD Interface] compability function for onenand_write_ecc
- * @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
- *
- * This function simply calls onenand_write_ecc
- * with oob buffer and oobsel = NULL
- */
-static int onenand_write(struct mtd_info *mtd, loff_t to, size_t len,
-        size_t *retlen, const u_char *buf)
-{
-        return onenand_write_ecc(mtd, to, len, retlen, buf, NULL, NULL);
-}
-
-/**
- * onenand_write_oob - [MTD Interface] OneNAND write out-of-band
+ * onenand_do_write_oob - [Internal] OneNAND write out-of-band
  * @param mtd           MTD device structure
  * @param to            offset to write to
  * @param len           number of bytes to write
@@ -865,11 +918,11 @@ static int onenand_write(struct mtd_info *mtd, loff_t to, size_t len,
  *
  * OneNAND write out-of-band
  */
-static int onenand_write_oob(struct mtd_info *mtd, loff_t to, size_t len,
-        size_t *retlen, const u_char *buf)
+static int onenand_do_write_oob(struct mtd_info *mtd, loff_t to, size_t len,
+                                size_t *retlen, const u_char *buf)
 {
         struct onenand_chip *this = mtd->priv;
-        int column, status;
+        int column, ret = 0;
         int written = 0;
 
         DEBUG(MTD_DEBUG_LEVEL3, "onenand_write_oob: to = 0x%08x, len = %i\n", (unsigned int) to, (int) len);
@@ -894,16 +947,27 @@ static int onenand_write_oob(struct mtd_info *mtd, loff_t to, size_t len,
 
                 this->command(mtd, ONENAND_CMD_BUFFERRAM, to, mtd->oobsize);
 
-                this->write_bufferram(mtd, ONENAND_SPARERAM, ffchars, 0, mtd->oobsize);
-                this->write_bufferram(mtd, ONENAND_SPARERAM, buf, column, thislen);
+                /* We send data to spare ram with oobsize
+                 * to prevent byte access */
+                memset(this->page_buf, 0xff, mtd->oobsize);
+                memcpy(this->page_buf + column, buf, thislen);
+                this->write_bufferram(mtd, ONENAND_SPARERAM, this->page_buf, 0, mtd->oobsize);
 
                 this->command(mtd, ONENAND_CMD_PROGOOB, to, mtd->oobsize);
 
                 onenand_update_bufferram(mtd, to, 0);
 
-                status = this->wait(mtd, FL_WRITING);
-                if (status)
+                ret = this->wait(mtd, FL_WRITING);
+                if (ret) {
+                        DEBUG(MTD_DEBUG_LEVEL0, "onenand_write_oob: write filaed %d\n", ret);
+                        goto out;
+                }
+
+                ret = onenand_verify_oob(mtd, buf, to, thislen);
+                if (ret) {
+                        DEBUG(MTD_DEBUG_LEVEL0, "onenand_write_oob: verify failed %d\n", ret);
                         goto out;
+                }
 
                 written += thislen;
 
@@ -920,145 +984,22 @@ out:
 
         *retlen = written;
 
-        return 0;
+        return ret;
 }
 
 /**
- * onenand_writev_ecc - [MTD Interface] write with iovec with ecc
- * @param mtd           MTD device structure
- * @param vecs          the iovectors to write
- * @param count         number of vectors
- * @param to            offset to write to
- * @param retlen        pointer to variable to store the number of written bytes
- * @param eccbuf        filesystem supplied oob data buffer
- * @param oobsel        oob selection structure
- *
- * OneNAND write with iovec with ecc
+ * onenand_write_oob - [MTD Interface] NAND write data and/or out-of-band
+ * @mtd:        MTD device structure
+ * @from:       offset to read from
+ * @ops:        oob operation description structure
  */
-static int onenand_writev_ecc(struct mtd_info *mtd, const struct kvec *vecs,
-        unsigned long count, loff_t to, size_t *retlen,
-        u_char *eccbuf, struct nand_oobinfo *oobsel)
+static int onenand_write_oob(struct mtd_info *mtd, loff_t to,
+                             struct mtd_oob_ops *ops)
 {
-        struct onenand_chip *this = mtd->priv;
-        unsigned char *pbuf;
-        size_t total_len, len;
-        int i, written = 0;
-        int ret = 0;
-
-        /* Preset written len for early exit */
-        *retlen = 0;
-
-        /* Calculate total length of data */
-        total_len = 0;
-        for (i = 0; i < count; i++)
-                total_len += vecs[i].iov_len;
-
-        DEBUG(MTD_DEBUG_LEVEL3, "onenand_writev_ecc: to = 0x%08x, len = %i, count = %ld\n", (unsigned int) to, (unsigned int) total_len, count);
-
-        /* Do not allow write past end of the device */
-        if (unlikely((to + total_len) > mtd->size)) {
-                DEBUG(MTD_DEBUG_LEVEL0, "onenand_writev_ecc: Attempted write past end of device\n");
-                return -EINVAL;
-        }
-
-        /* Reject writes, which are not page aligned */
-        if (unlikely(NOTALIGNED(to)) || unlikely(NOTALIGNED(total_len))) {
-                DEBUG(MTD_DEBUG_LEVEL0, "onenand_writev_ecc: Attempt to write not page aligned data\n");
-                return -EINVAL;
-        }
-
-        /* Grab the lock and see if the device is available */
-        onenand_get_device(mtd, FL_WRITING);
-
-        /* TODO handling oob */
-
-        /* Loop until all keve's data has been written */
-        len = 0;
-        while (count) {
-                pbuf = this->page_buf;
-                /*
-                 * If the given tuple is >= pagesize then
-                 * write it out from the iov
-                 */
-                if ((vecs->iov_len - len) >= mtd->oobblock) {
-                        pbuf = vecs->iov_base + len;
-
-                        len += mtd->oobblock;
-
-                        /* Check, if we have to switch to the next tuple */
-                        if (len >= (int) vecs->iov_len) {
-                                vecs++;
-                                len = 0;
-                                count--;
-                        }
-                } else {
-                        int cnt = 0, thislen;
-                        while (cnt < mtd->oobblock) {
-                                thislen = min_t(int, mtd->oobblock - cnt, vecs->iov_len - len);
-                                memcpy(this->page_buf + cnt, vecs->iov_base + len, thislen);
-                                cnt += thislen;
-                                len += thislen;
-
-                                /* Check, if we have to switch to the next tuple */
-                                if (len >= (int) vecs->iov_len) {
-                                        vecs++;
-                                        len = 0;
-                                        count--;
-                                }
-                        }
-                }
-
-                this->command(mtd, ONENAND_CMD_BUFFERRAM, to, mtd->oobblock);
+        BUG_ON(ops->mode != MTD_OOB_PLACE);
 
-                this->write_bufferram(mtd, ONENAND_DATARAM, pbuf, 0, mtd->oobblock);
-                this->write_bufferram(mtd, ONENAND_SPARERAM, ffchars, 0, mtd->oobsize);
-
-                this->command(mtd, ONENAND_CMD_PROG, to, mtd->oobblock);
-
-                onenand_update_bufferram(mtd, to, 1);
-
-                ret = this->wait(mtd, FL_WRITING);
-                if (ret) {
-                        DEBUG(MTD_DEBUG_LEVEL0, "onenand_writev_ecc: write failed %d\n", ret);
-                        goto out;
-                }
-
-
-                /* Only check verify write turn on */
-                ret = onenand_verify_page(mtd, (u_char *) pbuf, to);
-                if (ret) {
-                        DEBUG(MTD_DEBUG_LEVEL0, "onenand_writev_ecc: verify failed %d\n", ret);
-                        goto out;
-                }
-
-                written += mtd->oobblock;
-
-                to += mtd->oobblock;
-        }
-
-out:
-        /* Deselect and wakt up anyone waiting on the device */
-        onenand_release_device(mtd);
-
-        *retlen = written;
-
-        return 0;
-}
-
-/**
- * onenand_writev - [MTD Interface] compabilty function for onenand_writev_ecc
- * @param mtd           MTD device structure
- * @param vecs          the iovectors to write
- * @param count         number of vectors
- * @param to            offset to write to
- * @param retlen        pointer to variable to store the number of written bytes
- *
- * OneNAND write with kvec. This just calls the ecc function
- */
-static int onenand_writev(struct mtd_info *mtd, const struct kvec *vecs,
-        unsigned long count, loff_t to, size_t *retlen)
-{
-        return onenand_writev_ecc(mtd, vecs, count, to, retlen, NULL, NULL);
+        return onenand_do_write_oob(mtd, to + ops->ooboffs, ops->len,
+                                    &ops->retlen, ops->oobbuf);
 }
 
 /**
@@ -1227,7 +1168,7 @@ static int onenand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
 
         /* We write two bytes, so we dont have to mess with 16 bit access */
         ofs += mtd->oobsize + (bbm->badblockpos & ~0x01);
-        return mtd->write_oob(mtd, ofs , 2, &retlen, buf);
+        return onenand_do_write_oob(mtd, ofs , 2, &retlen, buf);
 }
 
 /**
@@ -1324,6 +1265,304 @@ static int onenand_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
         return 0;
 }
 
+#ifdef CONFIG_MTD_ONENAND_OTP
+
+/* Interal OTP operation */
+typedef int (*otp_op_t)(struct mtd_info *mtd, loff_t form, size_t len,
+                size_t *retlen, u_char *buf);
+
+/**
+ * do_otp_read - [DEFAULT] Read OTP block area
+ * @param mtd           MTD device structure
+ * @param from          The offset to read
+ * @param len           number of bytes to read
+ * @param retlen        pointer to variable to store the number of readbytes
+ * @param buf           the databuffer to put/get data
+ *
+ * Read OTP block area.
+ */
+static int do_otp_read(struct mtd_info *mtd, loff_t from, size_t len,
+                size_t *retlen, u_char *buf)
+{
+        struct onenand_chip *this = mtd->priv;
+        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);
+
+        /* Exit OTP access mode */
+        this->command(mtd, ONENAND_CMD_RESET, 0, 0);
+        this->wait(mtd, FL_RESETING);
+
+        return ret;
+}
+
+/**
+ * do_otp_write - [DEFAULT] Write OTP block area
+ * @param mtd           MTD device structure
+ * @param from          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,
+                size_t *retlen, u_char *buf)
+{
+        struct onenand_chip *this = mtd->priv;
+        unsigned char *pbuf = buf;
+        int ret;
+
+        /* Force buffer page aligned */
+        if (len < mtd->writesize) {
+                memcpy(this->page_buf, buf, len);
+                memset(this->page_buf + len, 0xff, mtd->writesize - len);
+                pbuf = this->page_buf;
+                len = mtd->writesize;
+        }
+
+        /* Enter OTP access mode */
+        this->command(mtd, ONENAND_CMD_OTP_ACCESS, 0, 0);
+        this->wait(mtd, FL_OTPING);
+
+        ret = mtd->write(mtd, from, len, retlen, pbuf);
+
+        /* Exit OTP access mode */
+        this->command(mtd, ONENAND_CMD_RESET, 0, 0);
+        this->wait(mtd, FL_RESETING);
+
+        return ret;
+}
+
+/**
+ * do_otp_lock - [DEFAULT] Lock OTP block area
+ * @param mtd           MTD device structure
+ * @param from          The offset to lock
+ * @param len           number of bytes to lock
+ * @param retlen        pointer to variable to store the number of lock bytes
+ * @param buf           the databuffer to put/get data
+ *
+ * Lock OTP block area.
+ */
+static int do_otp_lock(struct mtd_info *mtd, loff_t from, size_t len,
+                size_t *retlen, u_char *buf)
+{
+        struct onenand_chip *this = mtd->priv;
+        int ret;
+
+        /* Enter OTP access mode */
+        this->command(mtd, ONENAND_CMD_OTP_ACCESS, 0, 0);
+        this->wait(mtd, FL_OTPING);
+
+        ret = onenand_do_write_oob(mtd, from, len, retlen, buf);
+
+        /* Exit OTP access mode */
+        this->command(mtd, ONENAND_CMD_RESET, 0, 0);
+        this->wait(mtd, FL_RESETING);
+
+        return ret;
+}
+
+/**
+ * onenand_otp_walk - [DEFAULT] Handle OTP operation
+ * @param mtd           MTD device structure
+ * @param from          The offset to read/write
+ * @param len           number of bytes to read/write
+ * @param retlen        pointer to variable to store the number of read bytes
+ * @param buf           the databuffer to put/get data
+ * @param action        do given action
+ * @param mode          specify user and factory
+ *
+ * Handle OTP operation.
+ */
+static int onenand_otp_walk(struct mtd_info *mtd, loff_t from, size_t len,
+                        size_t *retlen, u_char *buf,
+                        otp_op_t action, int mode)
+{
+        struct onenand_chip *this = mtd->priv;
+        int otp_pages;
+        int density;
+        int ret = 0;
+
+        *retlen = 0;
+
+        density = this->device_id >> ONENAND_DEVICE_DENSITY_SHIFT;
+        if (density < ONENAND_DEVICE_DENSITY_512Mb)
+                otp_pages = 20;
+        else
+                otp_pages = 10;
+
+        if (mode == MTD_OTP_FACTORY) {
+                from += mtd->writesize * otp_pages;
+                otp_pages = 64 - otp_pages;
+        }
+
+        /* Check User/Factory boundary */
+        if (((mtd->writesize * otp_pages) - (from + len)) < 0)
+                return 0;
+
+        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;
+
+                        otpinfo = (struct otp_info *) buf;
+                        otpinfo->start = from;
+                        otpinfo->length = mtd->writesize;
+                        otpinfo->locked = 0;
+
+                        from += mtd->writesize;
+                        buf += sizeof(struct otp_info);
+                        *retlen += sizeof(struct otp_info);
+                } else {
+                        size_t tmp_retlen;
+                        int size = len;
+
+                        ret = action(mtd, from, len, &tmp_retlen, buf);
+
+                        buf += size;
+                        len -= size;
+                        *retlen += size;
+
+                        if (ret < 0)
+                                return ret;
+                }
+                otp_pages--;
+        }
+
+        return 0;
+}
+
+/**
+ * onenand_get_fact_prot_info - [MTD Interface] Read factory OTP info
+ * @param mtd           MTD device structure
+ * @param buf           the databuffer to put/get data
+ * @param len           number of bytes to read
+ *
+ * Read factory OTP info.
+ */
+static int onenand_get_fact_prot_info(struct mtd_info *mtd,
+                        struct otp_info *buf, size_t len)
+{
+        size_t retlen;
+        int ret;
+
+        ret = onenand_otp_walk(mtd, 0, len, &retlen, (u_char *) buf, NULL, MTD_OTP_FACTORY);
+
+        return ret ? : retlen;
+}
+
+/**
+ * onenand_read_fact_prot_reg - [MTD Interface] Read factory OTP area
+ * @param mtd           MTD device structure
+ * @param from          The offset to read
+ * @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/get data
+ *
+ * Read factory OTP area.
+ */
+static int onenand_read_fact_prot_reg(struct mtd_info *mtd, loff_t from,
+                        size_t len, size_t *retlen, u_char *buf)
+{
+        return onenand_otp_walk(mtd, from, len, retlen, buf, do_otp_read, MTD_OTP_FACTORY);
+}
+
+/**
+ * onenand_get_user_prot_info - [MTD Interface] Read user OTP info
+ * @param mtd           MTD device structure
+ * @param buf           the databuffer to put/get data
+ * @param len           number of bytes to read
+ *
+ * Read user OTP info.
+ */
+static int onenand_get_user_prot_info(struct mtd_info *mtd,
+                        struct otp_info *buf, size_t len)
+{
+        size_t retlen;
+        int ret;
+
+        ret = onenand_otp_walk(mtd, 0, len, &retlen, (u_char *) buf, NULL, MTD_OTP_USER);
+
+        return ret ? : retlen;
+}
+
+/**
+ * onenand_read_user_prot_reg - [MTD Interface] Read user OTP area
+ * @param mtd           MTD device structure
+ * @param from          The offset to read
+ * @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/get data
+ *
+ * Read user OTP area.
+ */
+static int onenand_read_user_prot_reg(struct mtd_info *mtd, loff_t from,
+                        size_t len, size_t *retlen, u_char *buf)
+{
+        return onenand_otp_walk(mtd, from, len, retlen, buf, do_otp_read, MTD_OTP_USER);
+}
+
+/**
+ * onenand_write_user_prot_reg - [MTD Interface] Write user OTP area
+ * @param mtd           MTD device structure
+ * @param from          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 user OTP area.
+ */
+static int onenand_write_user_prot_reg(struct mtd_info *mtd, loff_t from,
+                        size_t len, size_t *retlen, u_char *buf)
+{
+        return onenand_otp_walk(mtd, from, len, retlen, buf, do_otp_write, MTD_OTP_USER);
+}
+
+/**
+ * onenand_lock_user_prot_reg - [MTD Interface] Lock user OTP area
+ * @param mtd           MTD device structure
+ * @param from          The offset to lock
+ * @param len           number of bytes to unlock
+ *
+ * Write lock mark on spare area in page 0 in OTP block
+ */
+static int onenand_lock_user_prot_reg(struct mtd_info *mtd, loff_t from,
+                        size_t len)
+{
+        unsigned char oob_buf[64];
+        size_t retlen;
+        int ret;
+
+        memset(oob_buf, 0xff, mtd->oobsize);
+        /*
+         * Note: OTP lock operation
+         *       OTP block : 0xXXFC
+         *       1st block : 0xXXF3 (If chip support)
+         *       Both      : 0xXXF0 (If chip support)
+         */
+        oob_buf[ONENAND_OTP_LOCK_OFFSET] = 0xFC;
+
+        /*
+         * Write lock mark to 8th word of sector0 of page0 of the spare0.
+         * We write 16 bytes spare area instead of 2 bytes.
+         */
+        from = 0;
+        len = 16;
+
+        ret = onenand_otp_walk(mtd, from, len, &retlen, oob_buf, do_otp_lock, MTD_OTP_USER);
+
+        return ret ? : retlen;
+}
+#endif  /* CONFIG_MTD_ONENAND_OTP */
+
 /**
  * onenand_print_device_info - Print device ID
  * @param device        device ID
@@ -1423,15 +1662,15 @@ static int onenand_probe(struct mtd_info *mtd)
 
         /* OneNAND page size & block size */
         /* The data buffer size is equal to page size */
-        mtd->oobblock = this->read_word(this->base + ONENAND_REG_DATA_BUFFER_SIZE);
-        mtd->oobsize = mtd->oobblock >> 5;
+        mtd->writesize = this->read_word(this->base + ONENAND_REG_DATA_BUFFER_SIZE);
+        mtd->oobsize = mtd->writesize >> 5;
         /* Pagers per block is always 64 in OneNAND */
-        mtd->erasesize = mtd->oobblock << 6;
+        mtd->erasesize = mtd->writesize << 6;
 
         this->erase_shift = ffs(mtd->erasesize) - 1;
-        this->page_shift = ffs(mtd->oobblock) - 1;
+        this->page_shift = ffs(mtd->writesize) - 1;
         this->ppb_shift = (this->erase_shift - this->page_shift);
-        this->page_mask = (mtd->erasesize / mtd->oobblock) - 1;
+        this->page_mask = (mtd->erasesize / mtd->writesize) - 1;
 
         /* REVIST: Multichip handling */
 
@@ -1475,7 +1714,6 @@ static void onenand_resume(struct mtd_info *mtd)
                                 "in suspended state\n");
 }
 
-
 /**
  * onenand_scan - [OneNAND Interface] Scan for the OneNAND device
  * @param mtd           MTD device structure
@@ -1522,7 +1760,7 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
         /* Allocate buffers, if necessary */
         if (!this->page_buf) {
                 size_t len;
-                len = mtd->oobblock + mtd->oobsize;
+                len = mtd->writesize + mtd->oobsize;
                 this->page_buf = kmalloc(len, GFP_KERNEL);
                 if (!this->page_buf) {
                         printk(KERN_ERR "onenand_scan(): Can't allocate page_buf\n");
@@ -1537,40 +1775,42 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
 
         switch (mtd->oobsize) {
         case 64:
-                this->autooob = &onenand_oob_64;
+                this->ecclayout = &onenand_oob_64;
                 break;
 
         case 32:
-                this->autooob = &onenand_oob_32;
+                this->ecclayout = &onenand_oob_32;
                 break;
 
         default:
                 printk(KERN_WARNING "No OOB scheme defined for oobsize %d\n",
                         mtd->oobsize);
                 /* To prevent kernel oops */
-                this->autooob = &onenand_oob_32;
+                this->ecclayout = &onenand_oob_32;
                 break;
         }
 
-        memcpy(&mtd->oobinfo, this->autooob, sizeof(mtd->oobinfo));
+        mtd->ecclayout = this->ecclayout;
 
         /* Fill in remaining MTD driver data */
         mtd->type = MTD_NANDFLASH;
-        mtd->flags = MTD_CAP_NANDFLASH | MTD_ECC;
+        mtd->flags = MTD_CAP_NANDFLASH;
         mtd->ecctype = MTD_ECC_SW;
         mtd->erase = onenand_erase;
         mtd->point = NULL;
         mtd->unpoint = NULL;
         mtd->read = onenand_read;
         mtd->write = onenand_write;
-        mtd->read_ecc = onenand_read_ecc;
-        mtd->write_ecc = onenand_write_ecc;
         mtd->read_oob = onenand_read_oob;
         mtd->write_oob = onenand_write_oob;
-        mtd->readv = NULL;
-        mtd->readv_ecc = NULL;
-        mtd->writev = onenand_writev;
-        mtd->writev_ecc = onenand_writev_ecc;
+#ifdef CONFIG_MTD_ONENAND_OTP
+        mtd->get_fact_prot_info = onenand_get_fact_prot_info;
+        mtd->read_fact_prot_reg = onenand_read_fact_prot_reg;
+        mtd->get_user_prot_info = onenand_get_user_prot_info;
+        mtd->read_user_prot_reg = onenand_read_user_prot_reg;
+        mtd->write_user_prot_reg = onenand_write_user_prot_reg;
+        mtd->lock_user_prot_reg = onenand_lock_user_prot_reg;
+#endif
         mtd->sync = onenand_sync;
         mtd->lock = NULL;
         mtd->unlock = onenand_unlock;