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path: root/drivers/mtd/onenand/onenand_base.c
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Diffstat (limited to 'drivers/mtd/onenand/onenand_base.c')
-rw-r--r--drivers/mtd/onenand/onenand_base.c64
1 files changed, 43 insertions, 21 deletions
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index f63b1db3ffb3..26caf2590dae 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -23,6 +23,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
+#include <linux/slab.h>
#include <linux/init.h>
#include <linux/sched.h>
#include <linux/delay.h>
@@ -396,7 +397,8 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le
value = onenand_bufferram_address(this, block);
this->write_word(value, this->base + ONENAND_REG_START_ADDRESS2);
- if (ONENAND_IS_MLC(this) || ONENAND_IS_2PLANE(this))
+ if (ONENAND_IS_MLC(this) || ONENAND_IS_2PLANE(this) ||
+ ONENAND_IS_4KB_PAGE(this))
/* It is always BufferRAM0 */
ONENAND_SET_BUFFERRAM0(this);
else
@@ -425,7 +427,7 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le
case FLEXONENAND_CMD_RECOVER_LSB:
case ONENAND_CMD_READ:
case ONENAND_CMD_READOOB:
- if (ONENAND_IS_MLC(this))
+ if (ONENAND_IS_MLC(this) || ONENAND_IS_4KB_PAGE(this))
/* It is always BufferRAM0 */
dataram = ONENAND_SET_BUFFERRAM0(this);
else
@@ -465,11 +467,11 @@ static inline int onenand_read_ecc(struct onenand_chip *this)
{
int ecc, i, result = 0;
- if (!FLEXONENAND(this))
+ if (!FLEXONENAND(this) && !ONENAND_IS_4KB_PAGE(this))
return this->read_word(this->base + ONENAND_REG_ECC_STATUS);
for (i = 0; i < 4; i++) {
- ecc = this->read_word(this->base + ONENAND_REG_ECC_STATUS + i);
+ ecc = this->read_word(this->base + ONENAND_REG_ECC_STATUS + i*2);
if (likely(!ecc))
continue;
if (ecc & FLEXONENAND_UNCORRECTABLE_ERROR)
@@ -1424,7 +1426,7 @@ static int onenand_read(struct mtd_info *mtd, loff_t from, size_t len,
int ret;
onenand_get_device(mtd, FL_READING);
- ret = ONENAND_IS_MLC(this) ?
+ ret = ONENAND_IS_MLC(this) || ONENAND_IS_4KB_PAGE(this) ?
onenand_mlc_read_ops_nolock(mtd, from, &ops) :
onenand_read_ops_nolock(mtd, from, &ops);
onenand_release_device(mtd);
@@ -1459,7 +1461,7 @@ static int onenand_read_oob(struct mtd_info *mtd, loff_t from,
onenand_get_device(mtd, FL_READING);
if (ops->datbuf)
- ret = ONENAND_IS_MLC(this) ?
+ ret = ONENAND_IS_MLC(this) || ONENAND_IS_4KB_PAGE(this) ?
onenand_mlc_read_ops_nolock(mtd, from, ops) :
onenand_read_ops_nolock(mtd, from, ops);
else
@@ -1633,7 +1635,6 @@ static int onenand_verify_oob(struct mtd_info *mtd, const u_char *buf, loff_t to
static int onenand_verify(struct mtd_info *mtd, const u_char *buf, loff_t addr, size_t len)
{
struct onenand_chip *this = mtd->priv;
- void __iomem *dataram;
int ret = 0;
int thislen, column;
@@ -1653,10 +1654,9 @@ static int onenand_verify(struct mtd_info *mtd, const u_char *buf, loff_t addr,
onenand_update_bufferram(mtd, addr, 1);
- dataram = this->base + ONENAND_DATARAM;
- dataram += onenand_bufferram_offset(mtd, ONENAND_DATARAM);
+ this->read_bufferram(mtd, ONENAND_DATARAM, this->verify_buf, 0, mtd->writesize);
- if (memcmp(buf, dataram + column, thislen))
+ if (memcmp(buf, this->verify_buf, thislen))
return -EBADMSG;
len -= thislen;
@@ -1925,7 +1925,7 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to,
* 2 PLANE, MLC, and Flex-OneNAND do not support
* write-while-program feature.
*/
- if (!ONENAND_IS_2PLANE(this) && !first) {
+ if (!ONENAND_IS_2PLANE(this) && !ONENAND_IS_4KB_PAGE(this) && !first) {
ONENAND_SET_PREV_BUFFERRAM(this);
ret = this->wait(mtd, FL_WRITING);
@@ -1956,7 +1956,7 @@ static int onenand_write_ops_nolock(struct mtd_info *mtd, loff_t to,
/*
* 2 PLANE, MLC, and Flex-OneNAND wait here
*/
- if (ONENAND_IS_2PLANE(this)) {
+ if (ONENAND_IS_2PLANE(this) || ONENAND_IS_4KB_PAGE(this)) {
ret = this->wait(mtd, FL_WRITING);
/* In partial page write we don't update bufferram */
@@ -2083,7 +2083,7 @@ static int onenand_write_oob_nolock(struct mtd_info *mtd, loff_t to,
memcpy(oobbuf + column, buf, thislen);
this->write_bufferram(mtd, ONENAND_SPARERAM, oobbuf, 0, mtd->oobsize);
- if (ONENAND_IS_MLC(this)) {
+ if (ONENAND_IS_MLC(this) || ONENAND_IS_4KB_PAGE(this)) {
/* Set main area of DataRAM to 0xff*/
memset(this->page_buf, 0xff, mtd->writesize);
this->write_bufferram(mtd, ONENAND_DATARAM,
@@ -3026,7 +3026,7 @@ static int do_otp_read(struct mtd_info *mtd, loff_t from, size_t len,
this->command(mtd, ONENAND_CMD_OTP_ACCESS, 0, 0);
this->wait(mtd, FL_OTPING);
- ret = ONENAND_IS_MLC(this) ?
+ ret = ONENAND_IS_MLC(this) || ONENAND_IS_4KB_PAGE(this) ?
onenand_mlc_read_ops_nolock(mtd, from, &ops) :
onenand_read_ops_nolock(mtd, from, &ops);
@@ -3371,7 +3371,10 @@ static void onenand_check_features(struct mtd_info *mtd)
/* Lock scheme */
switch (density) {
case ONENAND_DEVICE_DENSITY_4Gb:
- this->options |= ONENAND_HAS_2PLANE;
+ if (ONENAND_IS_DDP(this))
+ this->options |= ONENAND_HAS_2PLANE;
+ else
+ this->options |= ONENAND_HAS_4KB_PAGE;
case ONENAND_DEVICE_DENSITY_2Gb:
/* 2Gb DDP does not have 2 plane */
@@ -3392,7 +3395,7 @@ static void onenand_check_features(struct mtd_info *mtd)
break;
}
- if (ONENAND_IS_MLC(this))
+ if (ONENAND_IS_MLC(this) || ONENAND_IS_4KB_PAGE(this))
this->options &= ~ONENAND_HAS_2PLANE;
if (FLEXONENAND(this)) {
@@ -3406,6 +3409,8 @@ static void onenand_check_features(struct mtd_info *mtd)
printk(KERN_DEBUG "Chip support all block unlock\n");
if (this->options & ONENAND_HAS_2PLANE)
printk(KERN_DEBUG "Chip has 2 plane\n");
+ if (this->options & ONENAND_HAS_4KB_PAGE)
+ printk(KERN_DEBUG "Chip has 4KiB pagesize\n");
}
/**
@@ -3758,6 +3763,12 @@ static int onenand_probe(struct mtd_info *mtd)
/* Restore system configuration 1 */
this->write_word(syscfg, this->base + ONENAND_REG_SYS_CFG1);
+ /* Workaround */
+ if (syscfg & ONENAND_SYS_CFG1_SYNC_WRITE) {
+ bram_maf_id = this->read_word(this->base + ONENAND_REG_MANUFACTURER_ID);
+ bram_dev_id = this->read_word(this->base + ONENAND_REG_DEVICE_ID);
+ }
+
/* Check manufacturer ID */
if (onenand_check_maf(bram_maf_id))
return -ENXIO;
@@ -3777,6 +3788,9 @@ static int onenand_probe(struct mtd_info *mtd)
this->device_id = dev_id;
this->version_id = ver_id;
+ /* Check OneNAND features */
+ onenand_check_features(mtd);
+
density = onenand_get_density(dev_id);
if (FLEXONENAND(this)) {
this->dies = ONENAND_IS_DDP(this) ? 2 : 1;
@@ -3798,7 +3812,7 @@ static int onenand_probe(struct mtd_info *mtd)
/* The data buffer size is equal to page size */
mtd->writesize = this->read_word(this->base + ONENAND_REG_DATA_BUFFER_SIZE);
/* We use the full BufferRAM */
- if (ONENAND_IS_MLC(this))
+ if (ONENAND_IS_MLC(this) || ONENAND_IS_4KB_PAGE(this))
mtd->writesize <<= 1;
mtd->oobsize = mtd->writesize >> 5;
@@ -3828,9 +3842,6 @@ static int onenand_probe(struct mtd_info *mtd)
else
mtd->size = this->chipsize;
- /* Check OneNAND features */
- onenand_check_features(mtd);
-
/*
* We emulate the 4KiB page and 256KiB erase block size
* But oobsize is still 64 bytes.
@@ -3925,6 +3936,13 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
__func__);
return -ENOMEM;
}
+#ifdef CONFIG_MTD_ONENAND_VERIFY_WRITE
+ this->verify_buf = kzalloc(mtd->writesize, GFP_KERNEL);
+ if (!this->verify_buf) {
+ kfree(this->page_buf);
+ return -ENOMEM;
+ }
+#endif
this->options |= ONENAND_PAGEBUF_ALLOC;
}
if (!this->oob_buf) {
@@ -4052,8 +4070,12 @@ void onenand_release(struct mtd_info *mtd)
kfree(this->bbm);
}
/* Buffers allocated by onenand_scan */
- if (this->options & ONENAND_PAGEBUF_ALLOC)
+ if (this->options & ONENAND_PAGEBUF_ALLOC) {
kfree(this->page_buf);
+#ifdef CONFIG_MTD_ONENAND_VERIFY_WRITE
+ kfree(this->verify_buf);
+#endif
+ }
if (this->options & ONENAND_OOBBUF_ALLOC)
kfree(this->oob_buf);
kfree(mtd->eraseregions);
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-21 07:31:46 +0300