[MTD] Remove read/write _ecc variants
MTD clients are agnostic of FLASH which needs ECC suppport.
Remove the functions and fixup the callers.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index da2f4d1..d796eb5 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -139,16 +139,10 @@
static int nand_read(struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, uint8_t *buf);
-static int nand_read_ecc(struct mtd_info *mtd, loff_t from, size_t len,
- size_t *retlen, uint8_t *buf, uint8_t *eccbuf,
- struct nand_oobinfo *oobsel);
static int nand_read_oob(struct mtd_info *mtd, loff_t from, size_t len,
size_t *retlen, uint8_t *buf);
static int nand_write(struct mtd_info *mtd, loff_t to, size_t len,
size_t *retlen, const uint8_t *buf);
-static int nand_write_ecc(struct mtd_info *mtd, loff_t to, size_t len,
- size_t *retlen, const uint8_t *buf, uint8_t *eccbuf,
- struct nand_oobinfo *oobsel);
static int nand_write_oob(struct mtd_info *mtd, loff_t to, size_t len,
size_t *retlen, const uint8_t *buf);
static int nand_erase(struct mtd_info *mtd, struct erase_info *instr);
@@ -1080,27 +1074,6 @@
}
/**
- * nand_read_ecc - [MTD Interface] MTD compability function for nand_do_read_ecc
- * @mtd: MTD device structure
- * @from: offset to read from
- * @len: number of bytes to read
- * @retlen: pointer to variable to store the number of read bytes
- * @buf: the databuffer to put data
- * @oob_buf: filesystem supplied oob data buffer
- * @oobsel: oob selection structure
- *
- * This function simply calls nand_do_read_ecc with flags = 0xff
- */
-static int nand_read_ecc(struct mtd_info *mtd, loff_t from, size_t len,
- size_t *retlen, uint8_t *buf, uint8_t *oob_buf, struct nand_oobinfo *oobsel)
-{
- /* use userspace supplied oobinfo, if zero */
- if (oobsel == NULL)
- oobsel = &mtd->oobinfo;
- return nand_do_read_ecc(mtd, from, len, retlen, buf, oob_buf, oobsel, 0xff);
-}
-
-/**
* nand_do_read_ecc - [MTD Interface] Read data with ECC
* @mtd: MTD device structure
* @from: offset to read from
@@ -1524,6 +1497,55 @@
}
/**
+ * nand_write_raw - [GENERIC] Write raw data including oob
+ * @mtd: MTD device structure
+ * @buf: source buffer
+ * @to: offset to write to
+ * @len: number of bytes to write
+ * @buf: source buffer
+ * @oob: oob buffer
+ *
+ * Write raw data including oob
+ */
+int nand_write_raw(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen,
+ uint8_t *buf, uint8_t *oob)
+{
+ struct nand_chip *this = mtd->priv;
+ int page = (int)(to >> this->page_shift);
+ int chip = (int)(to >> this->chip_shift);
+ int ret;
+
+ *retlen = 0;
+
+ /* Do not allow writes past end of device */
+ if ((to + len) > mtd->size) {
+ DEBUG(MTD_DEBUG_LEVEL0, "nand_read_raw: Attempt write "
+ "beyond end of device\n");
+ return -EINVAL;
+ }
+
+ /* Grab the lock and see if the device is available */
+ nand_get_device(this, mtd, FL_WRITING);
+
+ this->select_chip(mtd, chip);
+ this->data_poi = buf;
+
+ while (len != *retlen) {
+ ret = nand_write_page(mtd, this, page, oob, &mtd->oobinfo, 0);
+ if (ret)
+ return ret;
+ page++;
+ *retlen += mtd->writesize;
+ this->data_poi += mtd->writesize;
+ oob += mtd->oobsize;
+ }
+
+ /* Deselect and wake up anyone waiting on the device */
+ nand_release_device(mtd);
+ return 0;
+}
+
+/**
* nand_prepare_oobbuf - [GENERIC] Prepare the out of band buffer
* @mtd: MTD device structure
* @fsbuf: buffer given by fs driver
@@ -1585,57 +1607,39 @@
#define NOTALIGNED(x) (x & (mtd->writesize-1)) != 0
/**
- * nand_write - [MTD Interface] compability function for nand_write_ecc
+ * nand_write - [MTD Interface] NAND write with ECC
* @mtd: MTD device structure
* @to: offset to write to
* @len: number of bytes to write
* @retlen: pointer to variable to store the number of written bytes
* @buf: the data to write
*
- * This function simply calls nand_write_ecc with oob buffer and oobsel = NULL
- *
-*/
-static int nand_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const uint8_t *buf)
-{
- return (nand_write_ecc(mtd, to, len, retlen, buf, NULL, NULL));
-}
-
-/**
- * nand_write_ecc - [MTD Interface] NAND write with ECC
- * @mtd: MTD device structure
- * @to: offset to write to
- * @len: number of bytes to write
- * @retlen: pointer to variable to store the number of written bytes
- * @buf: the data to write
- * @eccbuf: filesystem supplied oob data buffer
- * @oobsel: oob selection structure
- *
* NAND write with ECC
*/
-static int nand_write_ecc(struct mtd_info *mtd, loff_t to, size_t len,
- size_t *retlen, const uint8_t *buf, uint8_t *eccbuf,
- struct nand_oobinfo *oobsel)
+static int nand_write(struct mtd_info *mtd, loff_t to, size_t len,
+ size_t *retlen, const uint8_t *buf)
{
int startpage, page, ret = -EIO, oob = 0, written = 0, chipnr;
int autoplace = 0, numpages, totalpages;
struct nand_chip *this = mtd->priv;
- uint8_t *oobbuf, *bufstart;
+ uint8_t *oobbuf, *bufstart, *eccbuf = NULL;
int ppblock = (1 << (this->phys_erase_shift - this->page_shift));
+ struct nand_oobinfo *oobsel = &mtd->oobinfo;
- DEBUG(MTD_DEBUG_LEVEL3, "nand_write_ecc: to = 0x%08x, len = %i\n", (unsigned int)to, (int)len);
+ DEBUG(MTD_DEBUG_LEVEL3, "nand_write: to = 0x%08x, len = %i\n", (unsigned int)to, (int)len);
/* Initialize retlen, in case of early exit */
*retlen = 0;
/* Do not allow write past end of device */
if ((to + len) > mtd->size) {
- DEBUG(MTD_DEBUG_LEVEL0, "nand_write_ecc: Attempt to write past end of page\n");
+ DEBUG(MTD_DEBUG_LEVEL0, "nand_write: Attempt to write past end of page\n");
return -EINVAL;
}
/* reject writes, which are not page aligned */
if (NOTALIGNED(to) || NOTALIGNED(len)) {
- printk(KERN_NOTICE "nand_write_ecc: Attempt to write not page aligned data\n");
+ printk(KERN_NOTICE "nand_write: Attempt to write not page aligned data\n");
return -EINVAL;
}
@@ -1651,10 +1655,6 @@
if (nand_check_wp(mtd))
goto out;
- /* if oobsel is NULL, use chip defaults */
- if (oobsel == NULL)
- oobsel = &mtd->oobinfo;
-
/* Autoplace of oob data ? Use the default placement scheme */
if (oobsel->useecc == MTD_NANDECC_AUTOPLACE) {
oobsel = this->autooob;
@@ -1689,7 +1689,7 @@
*/
ret = nand_write_page(mtd, this, page, &oobbuf[oob], oobsel, (--numpages > 0));
if (ret) {
- DEBUG(MTD_DEBUG_LEVEL0, "nand_write_ecc: write_page failed %d\n", ret);
+ DEBUG(MTD_DEBUG_LEVEL0, "nand_write: write_page failed %d\n", ret);
goto out;
}
/* Next oob page */
@@ -1712,7 +1712,7 @@
ret = nand_verify_pages(mtd, this, startpage, page - startpage,
oobbuf, oobsel, chipnr, (eccbuf != NULL));
if (ret) {
- DEBUG(MTD_DEBUG_LEVEL0, "nand_write_ecc: verify_pages failed %d\n", ret);
+ DEBUG(MTD_DEBUG_LEVEL0, "nand_write: verify_pages failed %d\n", ret);
goto out;
}
*retlen = written;
@@ -1741,7 +1741,7 @@
if (!ret)
*retlen = written;
else
- DEBUG(MTD_DEBUG_LEVEL0, "nand_write_ecc: verify_pages failed %d\n", ret);
+ DEBUG(MTD_DEBUG_LEVEL0, "nand_write: verify_pages failed %d\n", ret);
out:
/* Deselect and wake up anyone waiting on the device */
@@ -2527,8 +2527,6 @@
mtd->unpoint = NULL;
mtd->read = nand_read;
mtd->write = nand_write;
- mtd->read_ecc = nand_read_ecc;
- mtd->write_ecc = nand_write_ecc;
mtd->read_oob = nand_read_oob;
mtd->write_oob = nand_write_oob;
mtd->sync = nand_sync;