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-rw-r--r--drivers/mtd/devices/blkmtd.c8
-rw-r--r--drivers/mtd/onenand/generic.c4
-rw-r--r--drivers/mtd/onenand/onenand_base.c53
-rw-r--r--drivers/mtd/onenand/onenand_bbt.c4
4 files changed, 48 insertions, 21 deletions
diff --git a/drivers/mtd/devices/blkmtd.c b/drivers/mtd/devices/blkmtd.c
index f9db52f6bf00..04f864d238db 100644
--- a/drivers/mtd/devices/blkmtd.c
+++ b/drivers/mtd/devices/blkmtd.c
@@ -113,7 +113,7 @@ static int bi_write_complete(struct bio *bio, unsigned int bytes_done, int error
ClearPageUptodate(page);
SetPageError(page);
}
- ClearPageDirty(page);
+ clear_page_dirty(page);
unlock_page(page);
page_cache_release(page);
} while (bvec >= bio->bi_io_vec);
@@ -289,7 +289,7 @@ static int write_pages(struct blkmtd_dev *dev, const u_char *buf, loff_t to,
BUG();
}
memcpy(page_address(page)+offset, buf, start_len);
- SetPageDirty(page);
+ set_page_dirty(page);
SetPageUptodate(page);
buf += start_len;
thislen = start_len;
@@ -336,7 +336,7 @@ static int write_pages(struct blkmtd_dev *dev, const u_char *buf, loff_t to,
}
pagenr++;
pagecnt--;
- SetPageDirty(page);
+ set_page_dirty(page);
SetPageUptodate(page);
pagesc--;
thislen += PAGE_SIZE;
@@ -357,7 +357,7 @@ static int write_pages(struct blkmtd_dev *dev, const u_char *buf, loff_t to,
BUG();
}
memcpy(page_address(page), buf, end_len);
- SetPageDirty(page);
+ set_page_dirty(page);
SetPageUptodate(page);
DEBUG(3, "blkmtd: write: writing out partial end\n");
thislen += end_len;
diff --git a/drivers/mtd/onenand/generic.c b/drivers/mtd/onenand/generic.c
index 48cce431f89f..45c077d0f063 100644
--- a/drivers/mtd/onenand/generic.c
+++ b/drivers/mtd/onenand/generic.c
@@ -12,9 +12,9 @@
* This is a device driver for the OneNAND flash for generic boards.
*/
-#include <linux/device.h>
#include <linux/module.h>
#include <linux/init.h>
+#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/onenand.h>
#include <linux/mtd/partitions.h>
@@ -39,7 +39,7 @@ static int __devinit generic_onenand_probe(struct device *dev)
{
struct onenand_info *info;
struct platform_device *pdev = to_platform_device(dev);
- struct onenand_platform_data *pdata = pdev->dev.platform_data;
+ struct flash_platform_data *pdata = pdev->dev.platform_data;
struct resource *res = pdev->resource;
unsigned long size = res->end - res->start + 1;
int err;
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index f67d5d6eb9a6..a53a73fc2a5a 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -940,7 +940,7 @@ static int onenand_writev_ecc(struct mtd_info *mtd, const struct kvec *vecs,
u_char *eccbuf, struct nand_oobinfo *oobsel)
{
struct onenand_chip *this = mtd->priv;
- unsigned char buffer[MAX_ONENAND_PAGESIZE], *pbuf;
+ unsigned char *pbuf;
size_t total_len, len;
int i, written = 0;
int ret = 0;
@@ -975,7 +975,7 @@ static int onenand_writev_ecc(struct mtd_info *mtd, const struct kvec *vecs,
/* Loop until all keve's data has been written */
len = 0;
while (count) {
- pbuf = buffer;
+ pbuf = this->page_buf;
/*
* If the given tuple is >= pagesize then
* write it out from the iov
@@ -995,7 +995,7 @@ static int onenand_writev_ecc(struct mtd_info *mtd, const struct kvec *vecs,
int cnt = 0, thislen;
while (cnt < mtd->oobblock) {
thislen = min_t(int, mtd->oobblock - cnt, vecs->iov_len - len);
- memcpy(buffer + cnt, vecs->iov_base + len, thislen);
+ memcpy(this->page_buf + cnt, vecs->iov_base + len, thislen);
cnt += thislen;
len += thislen;
@@ -1296,6 +1296,12 @@ static int onenand_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
/* Block lock scheme */
for (block = start; block < end; block++) {
+ /* Set block address */
+ value = onenand_block_address(this, block);
+ this->write_word(value, this->base + ONENAND_REG_START_ADDRESS1);
+ /* Select DataRAM for DDP */
+ value = onenand_bufferram_address(this, block);
+ this->write_word(value, this->base + ONENAND_REG_START_ADDRESS2);
/* Set start block address */
this->write_word(block, this->base + ONENAND_REG_START_BLOCK_ADDRESS);
/* Write unlock command */
@@ -1309,10 +1315,6 @@ static int onenand_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
& ONENAND_CTRL_ONGO)
continue;
- /* Set block address for read block status */
- value = onenand_block_address(this, block);
- this->write_word(value, this->base + ONENAND_REG_START_ADDRESS1);
-
/* Check lock status */
status = this->read_word(this->base + ONENAND_REG_WP_STATUS);
if (!(status & ONENAND_WP_US))
@@ -1346,7 +1348,6 @@ static void onenand_print_device_info(int device)
static const struct onenand_manufacturers onenand_manuf_ids[] = {
{ONENAND_MFR_SAMSUNG, "Samsung"},
- {ONENAND_MFR_UNKNOWN, "Unknown"}
};
/**
@@ -1357,17 +1358,22 @@ static const struct onenand_manufacturers onenand_manuf_ids[] = {
*/
static int onenand_check_maf(int manuf)
{
+ int size = ARRAY_SIZE(onenand_manuf_ids);
+ char *name;
int i;
- for (i = 0; onenand_manuf_ids[i].id; i++) {
+ for (i = 0; i < size; i++)
if (manuf == onenand_manuf_ids[i].id)
break;
- }
- printk(KERN_DEBUG "OneNAND Manufacturer: %s (0x%0x)\n",
- onenand_manuf_ids[i].name, manuf);
+ if (i < size)
+ name = onenand_manuf_ids[i].name;
+ else
+ name = "Unknown";
+
+ printk(KERN_DEBUG "OneNAND Manufacturer: %s (0x%0x)\n", name, manuf);
- return (i != ONENAND_MFR_UNKNOWN);
+ return (i == size);
}
/**
@@ -1513,6 +1519,18 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
this->read_bufferram = onenand_sync_read_bufferram;
}
+ /* Allocate buffers, if necessary */
+ if (!this->page_buf) {
+ size_t len;
+ len = mtd->oobblock + mtd->oobsize;
+ this->page_buf = kmalloc(len, GFP_KERNEL);
+ if (!this->page_buf) {
+ printk(KERN_ERR "onenand_scan(): Can't allocate page_buf\n");
+ return -ENOMEM;
+ }
+ this->options |= ONENAND_PAGEBUF_ALLOC;
+ }
+
this->state = FL_READY;
init_waitqueue_head(&this->wq);
spin_lock_init(&this->chip_lock);
@@ -1574,12 +1592,21 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
*/
void onenand_release(struct mtd_info *mtd)
{
+ struct onenand_chip *this = mtd->priv;
+
#ifdef CONFIG_MTD_PARTITIONS
/* Deregister partitions */
del_mtd_partitions (mtd);
#endif
/* Deregister the device */
del_mtd_device (mtd);
+
+ /* Free bad block table memory, if allocated */
+ if (this->bbm)
+ kfree(this->bbm);
+ /* Buffer allocated by onenand_scan */
+ if (this->options & ONENAND_PAGEBUF_ALLOC)
+ kfree(this->page_buf);
}
EXPORT_SYMBOL_GPL(onenand_scan);
diff --git a/drivers/mtd/onenand/onenand_bbt.c b/drivers/mtd/onenand/onenand_bbt.c
index f40190f499e1..4510d3361eaa 100644
--- a/drivers/mtd/onenand/onenand_bbt.c
+++ b/drivers/mtd/onenand/onenand_bbt.c
@@ -118,10 +118,10 @@ static int create_bbt(struct mtd_info *mtd, uint8_t *buf, struct nand_bbt_descr
*/
static inline int onenand_memory_bbt (struct mtd_info *mtd, struct nand_bbt_descr *bd)
{
- unsigned char data_buf[MAX_ONENAND_PAGESIZE];
+ struct onenand_chip *this = mtd->priv;
bd->options &= ~NAND_BBT_SCANEMPTY;
- return create_bbt(mtd, data_buf, bd, -1);
+ return create_bbt(mtd, this->page_buf, bd, -1);
}
/**
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-20 05:53:34 +0200