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-rw-r--r--drivers/mtd/maps/arctic-mtd.c6
-rw-r--r--drivers/mtd/maps/beech-mtd.c6
-rw-r--r--drivers/mtd/maps/cstm_mips_ixx.c8
-rw-r--r--drivers/mtd/maps/nettel.c2
-rw-r--r--drivers/mtd/maps/redwood.c2
-rw-r--r--drivers/mtd/mtd_blkdevs.c2
-rw-r--r--drivers/mtd/nand/edb7312.c2
-rw-r--r--drivers/mtd/nand/nand_base.c172
-rw-r--r--drivers/mtd/nand/nand_bbt.c2
-rw-r--r--drivers/mtd/nftlcore.c4
-rw-r--r--drivers/mtd/onenand/Kconfig6
-rw-r--r--drivers/mtd/onenand/onenand_base.c154
-rw-r--r--include/linux/mtd/nand.h25
-rw-r--r--include/linux/mtd/onenand.h6
-rw-r--r--include/linux/mtd/onenand_regs.h4
-rw-r--r--include/mtd/Kbuild3
-rw-r--r--include/mtd/mtd-abi.h6
17 files changed, 289 insertions, 121 deletions
diff --git a/drivers/mtd/maps/arctic-mtd.c b/drivers/mtd/maps/arctic-mtd.c
index 642d96bc8919..2cc902436275 100644
--- a/drivers/mtd/maps/arctic-mtd.c
+++ b/drivers/mtd/maps/arctic-mtd.c
@@ -96,7 +96,7 @@ static struct mtd_partition arctic_partitions[PARTITIONS] = {
static int __init
init_arctic_mtd(void)
{
- int err = 0;
+ int err;
printk("%s: 0x%08x at 0x%08x\n", NAME, SIZE, PADDR);
@@ -112,7 +112,7 @@ init_arctic_mtd(void)
arctic_mtd = do_map_probe("cfi_probe", &arctic_mtd_map);
if (!arctic_mtd) {
- iounmap((void *) arctic_mtd_map.virt);
+ iounmap(arctic_mtd_map.virt);
return -ENXIO;
}
@@ -121,7 +121,7 @@ init_arctic_mtd(void)
err = add_mtd_partitions(arctic_mtd, arctic_partitions, PARTITIONS);
if (err) {
printk("%s: add_mtd_partitions failed\n", NAME);
- iounmap((void *) arctic_mtd_map.virt);
+ iounmap(arctic_mtd_map.virt);
}
return err;
diff --git a/drivers/mtd/maps/beech-mtd.c b/drivers/mtd/maps/beech-mtd.c
index a64b1a5ab316..d76d5981b863 100644
--- a/drivers/mtd/maps/beech-mtd.c
+++ b/drivers/mtd/maps/beech-mtd.c
@@ -72,7 +72,7 @@ static struct mtd_partition beech_partitions[2] = {
static int __init
init_beech_mtd(void)
{
- int err = 0;
+ int err;
printk("%s: 0x%08x at 0x%08x\n", NAME, SIZE, PADDR);
@@ -89,7 +89,7 @@ init_beech_mtd(void)
beech_mtd = do_map_probe("cfi_probe", &beech_mtd_map);
if (!beech_mtd) {
- iounmap((void *) beech_mtd_map.virt);
+ iounmap(beech_mtd_map.virt);
return -ENXIO;
}
@@ -98,7 +98,7 @@ init_beech_mtd(void)
err = add_mtd_partitions(beech_mtd, beech_partitions, 2);
if (err) {
printk("%s: add_mtd_partitions failed\n", NAME);
- iounmap((void *) beech_mtd_map.virt);
+ iounmap(beech_mtd_map.virt);
}
return err;
diff --git a/drivers/mtd/maps/cstm_mips_ixx.c b/drivers/mtd/maps/cstm_mips_ixx.c
index d6bef100d69a..df2c38ef105a 100644
--- a/drivers/mtd/maps/cstm_mips_ixx.c
+++ b/drivers/mtd/maps/cstm_mips_ixx.c
@@ -175,8 +175,8 @@ int __init init_cstm_mips_ixx(void)
printk(KERN_WARNING "Failed to ioremap\n");
for (j = 0; j < i; j++) {
if (cstm_mips_ixx_map[j].virt) {
- iounmap((void *)cstm_mips_ixx_map[j].virt);
- cstm_mips_ixx_map[j].virt = 0;
+ iounmap(cstm_mips_ixx_map[j].virt);
+ cstm_mips_ixx_map[j].virt = NULL;
}
}
return -EIO;
@@ -214,8 +214,8 @@ int __init init_cstm_mips_ixx(void)
else {
for (i = 0; i < PHYSMAP_NUMBER; i++) {
if (cstm_mips_ixx_map[i].virt) {
- iounmap((void *)cstm_mips_ixx_map[i].virt);
- cstm_mips_ixx_map[i].virt = 0;
+ iounmap(cstm_mips_ixx_map[i].virt);
+ cstm_mips_ixx_map[i].virt = NULL;
}
}
return -ENXIO;
diff --git a/drivers/mtd/maps/nettel.c b/drivers/mtd/maps/nettel.c
index 198e840ff6db..f9e8e5bcbc33 100644
--- a/drivers/mtd/maps/nettel.c
+++ b/drivers/mtd/maps/nettel.c
@@ -463,7 +463,7 @@ int __init nettel_init(void)
#ifdef CONFIG_MTD_CFI_INTELEXT
out_unmap1:
- iounmap((void *) nettel_intel_map.virt);
+ iounmap(nettel_intel_map.virt);
#endif
out_unmap2:
diff --git a/drivers/mtd/maps/redwood.c b/drivers/mtd/maps/redwood.c
index 2257d2b500c0..4d858b3d5f82 100644
--- a/drivers/mtd/maps/redwood.c
+++ b/drivers/mtd/maps/redwood.c
@@ -126,7 +126,7 @@ static struct mtd_info *redwood_mtd;
int __init init_redwood_flash(void)
{
- int err = 0;
+ int err;
printk(KERN_NOTICE "redwood: flash mapping: %x at %x\n",
WINDOW_SIZE, WINDOW_ADDR);
diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index 6baf5fe14230..178b53b56be9 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -69,7 +69,7 @@ static int do_blktrans_request(struct mtd_blktrans_ops *tr,
return 1;
default:
- printk(KERN_NOTICE "Unknown request %ld\n", rq_data_dir(req));
+ printk(KERN_NOTICE "Unknown request %u\n", rq_data_dir(req));
return 0;
}
}
diff --git a/drivers/mtd/nand/edb7312.c b/drivers/mtd/nand/edb7312.c
index 12017f3c6bd6..1daf8231aaef 100644
--- a/drivers/mtd/nand/edb7312.c
+++ b/drivers/mtd/nand/edb7312.c
@@ -199,7 +199,7 @@ static void __exit ep7312_cleanup(void)
nand_release(ap7312_mtd);
/* Release io resource */
- iounmap((void *)this->IO_ADDR_R);
+ iounmap(this->IO_ADDR_R);
/* Free the MTD device structure */
kfree(ep7312_mtd);
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 975b2ef61121..baece61169f4 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -415,7 +415,7 @@ static int nand_block_checkbad(struct mtd_info *mtd, loff_t ofs, int getchip,
* Wait for the ready pin, after a command
* The timeout is catched later.
*/
-static void nand_wait_ready(struct mtd_info *mtd)
+void nand_wait_ready(struct mtd_info *mtd)
{
struct nand_chip *chip = mtd->priv;
unsigned long timeo = jiffies + 2;
@@ -429,6 +429,7 @@ static void nand_wait_ready(struct mtd_info *mtd)
} while (time_before(jiffies, timeo));
led_trigger_event(nand_led_trigger, LED_OFF);
}
+EXPORT_SYMBOL_GPL(nand_wait_ready);
/**
* nand_command - [DEFAULT] Send command to NAND device
@@ -766,8 +767,8 @@ static int nand_read_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
int eccbytes = chip->ecc.bytes;
int eccsteps = chip->ecc.steps;
uint8_t *p = buf;
- uint8_t *ecc_calc = chip->buffers.ecccalc;
- uint8_t *ecc_code = chip->buffers.ecccode;
+ uint8_t *ecc_calc = chip->buffers->ecccalc;
+ uint8_t *ecc_code = chip->buffers->ecccode;
int *eccpos = chip->ecc.layout->eccpos;
nand_read_page_raw(mtd, chip, buf);
@@ -808,8 +809,8 @@ static int nand_read_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
int eccbytes = chip->ecc.bytes;
int eccsteps = chip->ecc.steps;
uint8_t *p = buf;
- uint8_t *ecc_calc = chip->buffers.ecccalc;
- uint8_t *ecc_code = chip->buffers.ecccode;
+ uint8_t *ecc_calc = chip->buffers->ecccalc;
+ uint8_t *ecc_code = chip->buffers->ecccode;
int *eccpos = chip->ecc.layout->eccpos;
for (i = 0; eccsteps; eccsteps--, i += eccbytes, p += eccsize) {
@@ -970,7 +971,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
page = realpage & chip->pagemask;
col = (int)(from & (mtd->writesize - 1));
- chip->oob_poi = chip->buffers.oobrbuf;
+ chip->oob_poi = chip->buffers->oobrbuf;
buf = ops->datbuf;
oob = ops->oobbuf;
@@ -981,7 +982,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
/* Is the current page in the buffer ? */
if (realpage != chip->pagebuf || oob) {
- bufpoi = aligned ? buf : chip->buffers.databuf;
+ bufpoi = aligned ? buf : chip->buffers->databuf;
if (likely(sndcmd)) {
chip->cmdfunc(mtd, NAND_CMD_READ0, 0x00, page);
@@ -989,14 +990,17 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
}
/* Now read the page into the buffer */
- ret = chip->ecc.read_page(mtd, chip, bufpoi);
+ if (unlikely(ops->mode == MTD_OOB_RAW))
+ ret = chip->ecc.read_page_raw(mtd, chip, bufpoi);
+ else
+ ret = chip->ecc.read_page(mtd, chip, bufpoi);
if (ret < 0)
break;
/* Transfer not aligned data */
if (!aligned) {
chip->pagebuf = realpage;
- memcpy(buf, chip->buffers.databuf + col, bytes);
+ memcpy(buf, chip->buffers->databuf + col, bytes);
}
buf += bytes;
@@ -1023,7 +1027,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
nand_wait_ready(mtd);
}
} else {
- memcpy(buf, chip->buffers.databuf + col, bytes);
+ memcpy(buf, chip->buffers->databuf + col, bytes);
buf += bytes;
}
@@ -1266,7 +1270,7 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from,
realpage = (int)(from >> chip->page_shift);
page = realpage & chip->pagemask;
- chip->oob_poi = chip->buffers.oobrbuf;
+ chip->oob_poi = chip->buffers->oobrbuf;
while(1) {
sndcmd = chip->ecc.read_oob(mtd, chip, page, sndcmd);
@@ -1322,8 +1326,6 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from,
static int nand_read_oob(struct mtd_info *mtd, loff_t from,
struct mtd_oob_ops *ops)
{
- int (*read_page)(struct mtd_info *mtd, struct nand_chip *chip,
- uint8_t *buf) = NULL;
struct nand_chip *chip = mtd->priv;
int ret = -ENOTSUPP;
@@ -1341,12 +1343,7 @@ static int nand_read_oob(struct mtd_info *mtd, loff_t from,
switch(ops->mode) {
case MTD_OOB_PLACE:
case MTD_OOB_AUTO:
- break;
-
case MTD_OOB_RAW:
- /* Replace the read_page algorithm temporary */
- read_page = chip->ecc.read_page;
- chip->ecc.read_page = nand_read_page_raw;
break;
default:
@@ -1358,8 +1355,6 @@ static int nand_read_oob(struct mtd_info *mtd, loff_t from,
else
ret = nand_do_read_ops(mtd, from, ops);
- if (unlikely(ops->mode == MTD_OOB_RAW))
- chip->ecc.read_page = read_page;
out:
nand_release_device(mtd);
return ret;
@@ -1391,7 +1386,7 @@ static void nand_write_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
int i, eccsize = chip->ecc.size;
int eccbytes = chip->ecc.bytes;
int eccsteps = chip->ecc.steps;
- uint8_t *ecc_calc = chip->buffers.ecccalc;
+ uint8_t *ecc_calc = chip->buffers->ecccalc;
const uint8_t *p = buf;
int *eccpos = chip->ecc.layout->eccpos;
@@ -1417,7 +1412,7 @@ static void nand_write_page_hwecc(struct mtd_info *mtd, struct nand_chip *chip,
int i, eccsize = chip->ecc.size;
int eccbytes = chip->ecc.bytes;
int eccsteps = chip->ecc.steps;
- uint8_t *ecc_calc = chip->buffers.ecccalc;
+ uint8_t *ecc_calc = chip->buffers->ecccalc;
const uint8_t *p = buf;
int *eccpos = chip->ecc.layout->eccpos;
@@ -1478,7 +1473,7 @@ static void nand_write_page_syndrome(struct mtd_info *mtd,
}
/**
- * nand_write_page - [INTERNAL] write one page
+ * nand_write_page - [REPLACEABLE] write one page
* @mtd: MTD device structure
* @chip: NAND chip descriptor
* @buf: the data to write
@@ -1486,13 +1481,16 @@ static void nand_write_page_syndrome(struct mtd_info *mtd,
* @cached: cached programming
*/
static int nand_write_page(struct mtd_info *mtd, struct nand_chip *chip,
- const uint8_t *buf, int page, int cached)
+ const uint8_t *buf, int page, int cached, int raw)
{
int status;
chip->cmdfunc(mtd, NAND_CMD_SEQIN, 0x00, page);
- chip->ecc.write_page(mtd, chip, buf);
+ if (unlikely(raw))
+ chip->ecc.write_page_raw(mtd, chip, buf);
+ else
+ chip->ecc.write_page(mtd, chip, buf);
/*
* Cached progamming disabled for now, Not sure if its worth the
@@ -1627,7 +1625,7 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
(chip->pagebuf << chip->page_shift) < (to + ops->len))
chip->pagebuf = -1;
- chip->oob_poi = chip->buffers.oobwbuf;
+ chip->oob_poi = chip->buffers->oobwbuf;
while(1) {
int cached = writelen > bytes && page != blockmask;
@@ -1635,7 +1633,8 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
if (unlikely(oob))
oob = nand_fill_oob(chip, oob, ops);
- ret = nand_write_page(mtd, chip, buf, page, cached);
+ ret = chip->write_page(mtd, chip, buf, page, cached,
+ (ops->mode == MTD_OOB_RAW));
if (ret)
break;
@@ -1745,7 +1744,7 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
if (page == chip->pagebuf)
chip->pagebuf = -1;
- chip->oob_poi = chip->buffers.oobwbuf;
+ chip->oob_poi = chip->buffers->oobwbuf;
memset(chip->oob_poi, 0xff, mtd->oobsize);
nand_fill_oob(chip, ops->oobbuf, ops);
status = chip->ecc.write_oob(mtd, chip, page & chip->pagemask);
@@ -1768,8 +1767,6 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
static int nand_write_oob(struct mtd_info *mtd, loff_t to,
struct mtd_oob_ops *ops)
{
- void (*write_page)(struct mtd_info *mtd, struct nand_chip *chip,
- const uint8_t *buf) = NULL;
struct nand_chip *chip = mtd->priv;
int ret = -ENOTSUPP;
@@ -1787,12 +1784,7 @@ static int nand_write_oob(struct mtd_info *mtd, loff_t to,
switch(ops->mode) {
case MTD_OOB_PLACE:
case MTD_OOB_AUTO:
- break;
-
case MTD_OOB_RAW:
- /* Replace the write_page algorithm temporary */
- write_page = chip->ecc.write_page;
- chip->ecc.write_page = nand_write_page_raw;
break;
default:
@@ -1804,8 +1796,6 @@ static int nand_write_oob(struct mtd_info *mtd, loff_t to,
else
ret = nand_do_write_ops(mtd, to, ops);
- if (unlikely(ops->mode == MTD_OOB_RAW))
- chip->ecc.write_page = write_page;
out:
nand_release_device(mtd);
return ret;
@@ -2288,40 +2278,22 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
return type;
}
-/* module_text_address() isn't exported, and it's mostly a pointless
- test if this is a module _anyway_ -- they'd have to try _really_ hard
- to call us from in-kernel code if the core NAND support is modular. */
-#ifdef MODULE
-#define caller_is_module() (1)
-#else
-#define caller_is_module() \
- module_text_address((unsigned long)__builtin_return_address(0))
-#endif
-
/**
- * nand_scan - [NAND Interface] Scan for the NAND device
- * @mtd: MTD device structure
- * @maxchips: Number of chips to scan for
+ * nand_scan_ident - [NAND Interface] Scan for the NAND device
+ * @mtd: MTD device structure
+ * @maxchips: Number of chips to scan for
*
- * This fills out all the uninitialized function pointers
- * with the defaults.
- * The flash ID is read and the mtd/chip structures are
- * filled with the appropriate values.
- * The mtd->owner field must be set to the module of the caller
+ * This is the first phase of the normal nand_scan() function. It
+ * reads the flash ID and sets up MTD fields accordingly.
*
+ * The mtd->owner field must be set to the module of the caller.
*/
-int nand_scan(struct mtd_info *mtd, int maxchips)
+int nand_scan_ident(struct mtd_info *mtd, int maxchips)
{
int i, busw, nand_maf_id;
struct nand_chip *chip = mtd->priv;
struct nand_flash_dev *type;
- /* Many callers got this wrong, so check for it for a while... */
- if (!mtd->owner && caller_is_module()) {
- printk(KERN_CRIT "nand_scan() called with NULL mtd->owner!\n");
- BUG();
- }
-
/* Get buswidth to select the correct functions */
busw = chip->options & NAND_BUSWIDTH_16;
/* Set the default functions */
@@ -2353,8 +2325,31 @@ int nand_scan(struct mtd_info *mtd, int maxchips)
chip->numchips = i;
mtd->size = i * chip->chipsize;
+ return 0;
+}
+
+
+/**
+ * nand_scan_tail - [NAND Interface] Scan for the NAND device
+ * @mtd: MTD device structure
+ * @maxchips: Number of chips to scan for
+ *
+ * This is the second phase of the normal nand_scan() function. It
+ * fills out all the uninitialized function pointers with the defaults
+ * and scans for a bad block table if appropriate.
+ */
+int nand_scan_tail(struct mtd_info *mtd)
+{
+ int i;
+ struct nand_chip *chip = mtd->priv;
+
+ if (!(chip->options & NAND_OWN_BUFFERS))
+ chip->buffers = kmalloc(sizeof(*chip->buffers), GFP_KERNEL);
+ if (!chip->buffers)
+ return -ENOMEM;
+
/* Preset the internal oob write buffer */
- memset(chip->buffers.oobwbuf, 0xff, mtd->oobsize);
+ memset(chip->buffers->oobwbuf, 0xff, mtd->oobsize);
/*
* If no default placement scheme is given, select an appropriate one
@@ -2377,10 +2372,18 @@ int nand_scan(struct mtd_info *mtd, int maxchips)
}
}
+ if (!chip->write_page)
+ chip->write_page = nand_write_page;
+
/*
* check ECC mode, default to software if 3byte/512byte hardware ECC is
* selected and we have 256 byte pagesize fallback to software ECC
*/
+ if (!chip->ecc.read_page_raw)
+ chip->ecc.read_page_raw = nand_read_page_raw;
+ if (!chip->ecc.write_page_raw)
+ chip->ecc.write_page_raw = nand_write_page_raw;
+
switch (chip->ecc.mode) {
case NAND_ECC_HW:
/* Use standard hwecc read page function ? */
@@ -2438,6 +2441,7 @@ int nand_scan(struct mtd_info *mtd, int maxchips)
chip->ecc.size = mtd->writesize;
chip->ecc.bytes = 0;
break;
+
default:
printk(KERN_WARNING "Invalid NAND_ECC_MODE %d\n",
chip->ecc.mode);
@@ -2503,6 +2507,44 @@ int nand_scan(struct mtd_info *mtd, int maxchips)
return chip->scan_bbt(mtd);
}
+/* module_text_address() isn't exported, and it's mostly a pointless
+ test if this is a module _anyway_ -- they'd have to try _really_ hard
+ to call us from in-kernel code if the core NAND support is modular. */
+#ifdef MODULE
+#define caller_is_module() (1)
+#else
+#define caller_is_module() \
+ module_text_address((unsigned long)__builtin_return_address(0))
+#endif
+
+/**
+ * nand_scan - [NAND Interface] Scan for the NAND device
+ * @mtd: MTD device structure
+ * @maxchips: Number of chips to scan for
+ *
+ * This fills out all the uninitialized function pointers
+ * with the defaults.
+ * The flash ID is read and the mtd/chip structures are
+ * filled with the appropriate values.
+ * The mtd->owner field must be set to the module of the caller
+ *
+ */
+int nand_scan(struct mtd_info *mtd, int maxchips)
+{
+ int ret;
+
+ /* Many callers got this wrong, so check for it for a while... */
+ if (!mtd->owner && caller_is_module()) {
+ printk(KERN_CRIT "nand_scan() called with NULL mtd->owner!\n");
+ BUG();
+ }
+
+ ret = nand_scan_ident(mtd, maxchips);
+ if (!ret)
+ ret = nand_scan_tail(mtd);
+ return ret;
+}
+
/**
* nand_release - [NAND Interface] Free resources held by the NAND device
* @mtd: MTD device structure
@@ -2520,9 +2562,13 @@ void nand_release(struct mtd_info *mtd)
/* Free bad block table memory */
kfree(chip->bbt);
+ if (!(chip->options & NAND_OWN_BUFFERS))
+ kfree(chip->buffers);
}
EXPORT_SYMBOL_GPL(nand_scan);
+EXPORT_SYMBOL_GPL(nand_scan_ident);
+EXPORT_SYMBOL_GPL(nand_scan_tail);
EXPORT_SYMBOL_GPL(nand_release);
static int __init nand_base_init(void)
diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c
index a612c4ea8194..9402653eb09b 100644
--- a/drivers/mtd/nand/nand_bbt.c
+++ b/drivers/mtd/nand/nand_bbt.c
@@ -759,7 +759,7 @@ static inline int nand_memory_bbt(struct mtd_info *mtd, struct nand_bbt_descr *b
struct nand_chip *this = mtd->priv;
bd->options &= ~NAND_BBT_SCANEMPTY;
- return create_bbt(mtd, this->buffers.databuf, bd, -1);
+ return create_bbt(mtd, this->buffers->databuf, bd, -1);
}
/**
diff --git a/drivers/mtd/nftlcore.c b/drivers/mtd/nftlcore.c
index dd5cea8b4a7a..b5a5f8da4722 100644
--- a/drivers/mtd/nftlcore.c
+++ b/drivers/mtd/nftlcore.c
@@ -175,6 +175,8 @@ int nftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len,
return res;
}
+#ifdef CONFIG_NFTL_RW
+
/*
* Write data and oob to flash
*/
@@ -196,8 +198,6 @@ static int nftl_write(struct mtd_info *mtd, loff_t offs, size_t len,
return res;
}
-#ifdef CONFIG_NFTL_RW
-
/* Actual NFTL access routines */
/* NFTL_findfreeblock: Find a free Erase Unit on the NFTL partition. This function is used
* when the give Virtual Unit Chain
diff --git a/drivers/mtd/onenand/Kconfig b/drivers/mtd/onenand/Kconfig
index 5930a03736d7..465961b8bcd1 100644
--- a/drivers/mtd/onenand/Kconfig
+++ b/drivers/mtd/onenand/Kconfig
@@ -43,10 +43,4 @@ config MTD_ONENAND_OTP
OTP block is fully-guaranteed to be a valid block.
-config MTD_ONENAND_SYNC_READ
- bool "OneNAND Sync. Burst Read Support"
- depends on ARCH_OMAP
- help
- This enables support for Sync. Burst Read.
-
endmenu
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index 84ec40d25438..8ed68b28afe3 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -1,7 +1,7 @@
/*
* linux/drivers/mtd/onenand/onenand_base.c
*
- * Copyright (C) 2005 Samsung Electronics
+ * Copyright (C) 2005-2006 Samsung Electronics
* Kyungmin Park <kyungmin.park@samsung.com>
*
* This program is free software; you can redistribute it and/or modify
@@ -199,6 +199,7 @@ static int onenand_command(struct mtd_info *mtd, int cmd, loff_t addr, size_t le
case ONENAND_CMD_UNLOCK:
case ONENAND_CMD_LOCK:
case ONENAND_CMD_LOCK_TIGHT:
+ case ONENAND_CMD_UNLOCK_ALL:
block = -1;
page = -1;
break;
@@ -1211,11 +1212,11 @@ static int onenand_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
end = len >> this->erase_shift;
/* Continuous lock scheme */
- if (this->options & ONENAND_CONT_LOCK) {
+ if (this->options & ONENAND_HAS_CONT_LOCK) {
/* Set start block address */
this->write_word(start, this->base + ONENAND_REG_START_BLOCK_ADDRESS);
/* Set end block address */
- this->write_word(end - 1, this->base + ONENAND_REG_END_BLOCK_ADDRESS);
+ this->write_word(start + end - 1, this->base + ONENAND_REG_END_BLOCK_ADDRESS);
/* Write unlock command */
this->command(mtd, ONENAND_CMD_UNLOCK, 0, 0);
@@ -1236,7 +1237,7 @@ static int onenand_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
}
/* Block lock scheme */
- for (block = start; block < end; block++) {
+ for (block = start; block < start + end; block++) {
/* Set block address */
value = onenand_block_address(this, block);
this->write_word(value, this->base + ONENAND_REG_START_ADDRESS1);
@@ -1265,6 +1266,79 @@ static int onenand_unlock(struct mtd_info *mtd, loff_t ofs, size_t len)
return 0;
}
+/**
+ * onenand_check_lock_status - [OneNAND Interface] Check lock status
+ * @param this onenand chip data structure
+ *
+ * Check lock status
+ */
+static void onenand_check_lock_status(struct onenand_chip *this)
+{
+ unsigned int value, block, status;
+ unsigned int end;
+
+ end = this->chipsize >> this->erase_shift;
+ for (block = 0; 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);
+
+ /* Check lock status */
+ status = this->read_word(this->base + ONENAND_REG_WP_STATUS);
+ if (!(status & ONENAND_WP_US))
+ printk(KERN_ERR "block = %d, wp status = 0x%x\n", block, status);
+ }
+}
+
+/**
+ * onenand_unlock_all - [OneNAND Interface] unlock all blocks
+ * @param mtd MTD device structure
+ *
+ * Unlock all blocks
+ */
+static int onenand_unlock_all(struct mtd_info *mtd)
+{
+ struct onenand_chip *this = mtd->priv;
+
+ if (this->options & ONENAND_HAS_UNLOCK_ALL) {
+ /* Write unlock command */
+ this->command(mtd, ONENAND_CMD_UNLOCK_ALL, 0, 0);
+
+ /* There's no return value */
+ this->wait(mtd, FL_UNLOCKING);
+
+ /* Sanity check */
+ while (this->read_word(this->base + ONENAND_REG_CTRL_STATUS)
+ & ONENAND_CTRL_ONGO)
+ continue;
+
+ /* Workaround for all block unlock in DDP */
+ if (this->device_id & ONENAND_DEVICE_IS_DDP) {
+ loff_t ofs;
+ size_t len;
+
+ /* 1st block on another chip */
+ ofs = this->chipsize >> 1;
+ len = 1 << this->erase_shift;
+
+ onenand_unlock(mtd, ofs, len);
+ }
+
+ onenand_check_lock_status(this);
+
+ return 0;
+ }
+
+ mtd->unlock(mtd, 0x0, this->chipsize);
+
+ return 0;
+}
+
#ifdef CONFIG_MTD_ONENAND_OTP
/* Interal OTP operation */
@@ -1564,12 +1638,43 @@ static int onenand_lock_user_prot_reg(struct mtd_info *mtd, loff_t from,
#endif /* CONFIG_MTD_ONENAND_OTP */
/**
+ * onenand_lock_scheme - Check and set OneNAND lock scheme
+ * @param mtd MTD data structure
+ *
+ * Check and set OneNAND lock scheme
+ */
+static void onenand_lock_scheme(struct mtd_info *mtd)
+{
+ struct onenand_chip *this = mtd->priv;
+ unsigned int density, process;
+
+ /* Lock scheme depends on density and process */
+ density = this->device_id >> ONENAND_DEVICE_DENSITY_SHIFT;
+ process = this->version_id >> ONENAND_VERSION_PROCESS_SHIFT;
+
+ /* Lock scheme */
+ if (density >= ONENAND_DEVICE_DENSITY_1Gb) {
+ /* A-Die has all block unlock */
+ if (process) {
+ printk(KERN_DEBUG "Chip support all block unlock\n");
+ this->options |= ONENAND_HAS_UNLOCK_ALL;
+ }
+ } else {
+ /* Some OneNAND has continues lock scheme */
+ if (!process) {
+ printk(KERN_DEBUG "Lock scheme is Continues Lock\n");
+ this->options |= ONENAND_HAS_CONT_LOCK;
+ }
+ }
+}
+
+/**
* onenand_print_device_info - Print device ID
* @param device device ID
*
* Print device ID
*/
-static void onenand_print_device_info(int device)
+static void onenand_print_device_info(int device, int version)
{
int vcc, demuxed, ddp, density;
@@ -1583,6 +1688,7 @@ static void onenand_print_device_info(int device)
(16 << density),
vcc ? "2.65/3.3" : "1.8",
device);
+ printk(KERN_DEBUG "OneNAND version = 0x%04x\n", version);
}
static const struct onenand_manufacturers onenand_manuf_ids[] = {
@@ -1625,9 +1731,14 @@ static int onenand_check_maf(int manuf)
static int onenand_probe(struct mtd_info *mtd)
{
struct onenand_chip *this = mtd->priv;
- int bram_maf_id, bram_dev_id, maf_id, dev_id;
- int version_id;
+ int bram_maf_id, bram_dev_id, maf_id, dev_id, ver_id;
int density;
+ int syscfg;
+
+ /* Save system configuration 1 */
+ syscfg = this->read_word(this->base + ONENAND_REG_SYS_CFG1);
+ /* Clear Sync. Burst Read mode to read BootRAM */
+ this->write_word((syscfg & ~ONENAND_SYS_CFG1_SYNC_READ), this->base + ONENAND_REG_SYS_CFG1);
/* Send the command for reading device ID from BootRAM */
this->write_word(ONENAND_CMD_READID, this->base + ONENAND_BOOTRAM);
@@ -1636,24 +1747,31 @@ static int onenand_probe(struct mtd_info *mtd)
bram_maf_id = this->read_word(this->base + ONENAND_BOOTRAM + 0x0);
bram_dev_id = this->read_word(this->base + ONENAND_BOOTRAM + 0x2);
+ /* Reset OneNAND to read default register values */
+ this->write_word(ONENAND_CMD_RESET, this->base + ONENAND_BOOTRAM);
+ /* Wait reset */
+ this->wait(mtd, FL_RESETING);
+
+ /* Restore system configuration 1 */
+ this->write_word(syscfg, this->base + ONENAND_REG_SYS_CFG1);
+
/* Check manufacturer ID */
if (onenand_check_maf(bram_maf_id))
return -ENXIO;
- /* Reset OneNAND to read default register values */
- this->write_word(ONENAND_CMD_RESET, this->base + ONENAND_BOOTRAM);
-
/* Read manufacturer and device IDs from Register */
maf_id = this->read_word(this->base + ONENAND_REG_MANUFACTURER_ID);
dev_id = this->read_word(this->base + ONENAND_REG_DEVICE_ID);
+ ver_id= this->read_word(this->base + ONENAND_REG_VERSION_ID);
/* Check OneNAND device */
if (maf_id != bram_maf_id || dev_id != bram_dev_id)
return -ENXIO;
/* Flash device information */
- onenand_print_device_info(dev_id);
+ onenand_print_device_info(dev_id, ver_id);
this->device_id = dev_id;
+ this->version_id = ver_id;
density = dev_id >> ONENAND_DEVICE_DENSITY_SHIFT;
this->chipsize = (16 << density) << 20;
@@ -1676,16 +1794,8 @@ static int onenand_probe(struct mtd_info *mtd)
mtd->size = this->chipsize;
- /* Version ID */
- version_id = this->read_word(this->base + ONENAND_REG_VERSION_ID);
- printk(KERN_DEBUG "OneNAND version = 0x%04x\n", version_id);
-
- /* Lock scheme */
- if (density <= ONENAND_DEVICE_DENSITY_512Mb &&
- !(version_id >> ONENAND_VERSION_PROCESS_SHIFT)) {
- printk(KERN_INFO "Lock scheme is Continues Lock\n");
- this->options |= ONENAND_CONT_LOCK;
- }
+ /* Check OneNAND lock scheme */
+ onenand_lock_scheme(mtd);
return 0;
}
@@ -1821,7 +1931,7 @@ int onenand_scan(struct mtd_info *mtd, int maxchips)
mtd->owner = THIS_MODULE;
/* Unlock whole block */
- mtd->unlock(mtd, 0x0, this->chipsize);
+ onenand_unlock_all(mtd);
return this->scan_bbt(mtd);
}
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 0b4cd2fa64aa..70420bbae82b 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -27,9 +27,17 @@
struct mtd_info;
/* Scan and identify a NAND device */
extern int nand_scan (struct mtd_info *mtd, int max_chips);
+/* Separate phases of nand_scan(), allowing board driver to intervene
+ * and override command or ECC setup according to flash type */
+extern int nand_scan_ident(struct mtd_info *mtd, int max_chips);
+extern int nand_scan_tail(struct mtd_info *mtd);
+
/* Free resources held by the NAND device */
extern void nand_release (struct mtd_info *mtd);
+/* Internal helper for board drivers which need to override command function */
+extern void nand_wait_ready(struct mtd_info *mtd);
+
/* The maximum number of NAND chips in an array */
#define NAND_MAX_CHIPS 8
@@ -178,7 +186,9 @@ typedef enum {
#define NAND_USE_FLASH_BBT 0x00010000
/* This option skips the bbt scan during initialization. */
#define NAND_SKIP_BBTSCAN 0x00020000
-
+/* This option is defined if the board driver allocates its own buffers
+ (e.g. because it needs them DMA-coherent */
+#define NAND_OWN_BUFFERS 0x00040000
/* Options set by nand scan */
/* Nand scan has allocated controller struct */
#define NAND_CONTROLLER_ALLOC 0x80000000
@@ -228,6 +238,8 @@ struct nand_hw_control {
* be provided if an hardware ECC is available
* @calculate: function for ecc calculation or readback from ecc hardware
* @correct: function for ecc correction, matching to ecc generator (sw/hw)
+ * @read_page_raw: function to read a raw page without ECC
+ * @write_page_raw: function to write a raw page without ECC
* @read_page: function to read a page according to the ecc generator requirements
* @write_page: function to write a page according to the ecc generator requirements
* @read_oob: function to read chip OOB data
@@ -249,6 +261,12 @@ struct nand_ecc_ctrl {
int (*correct)(struct mtd_info *mtd, uint8_t *dat,
uint8_t *read_ecc,
uint8_t *calc_ecc);
+ int (*read_page_raw)(struct mtd_info *mtd,
+ struct nand_chip *chip,
+ uint8_t *buf);
+ void (*write_page_raw)(struct mtd_info *mtd,
+ struct nand_chip *chip,
+ const uint8_t *buf);
int (*read_page)(struct mtd_info *mtd,
struct nand_chip *chip,
uint8_t *buf);
@@ -337,6 +355,7 @@ struct nand_buffers {
* @priv: [OPTIONAL] pointer to private chip date
* @errstat: [OPTIONAL] hardware specific function to perform additional error status checks
* (determine if errors are correctable)
+ * @write_page [REPLACEABLE] High-level page write function
*/
struct nand_chip {
@@ -359,6 +378,8 @@ struct nand_chip {
void (*erase_cmd)(struct mtd_info *mtd, int page);
int (*scan_bbt)(struct mtd_info *mtd);
int (*errstat)(struct mtd_info *mtd, struct nand_chip *this, int state, int status, int page);
+ int (*write_page)(struct mtd_info *mtd, struct nand_chip *chip,
+ const uint8_t *buf, int page, int cached, int raw);
int chip_delay;
unsigned int options;
@@ -380,7 +401,7 @@ struct nand_chip {
struct nand_ecclayout *ecclayout;
struct nand_ecc_ctrl ecc;
- struct nand_buffers buffers;
+ struct nand_buffers *buffers;
struct nand_hw_control hwcontrol;
struct mtd_oob_ops ops;
diff --git a/include/linux/mtd/onenand.h b/include/linux/mtd/onenand.h
index 1f4972155249..6f045b586e76 100644
--- a/include/linux/mtd/onenand.h
+++ b/include/linux/mtd/onenand.h
@@ -1,7 +1,7 @@
/*
* linux/include/linux/mtd/onenand.h
*
- * Copyright (C) 2005 Samsung Electronics
+ * Copyright (C) 2005-2006 Samsung Electronics
* Kyungmin Park <kyungmin.park@samsung.com>
*
* This program is free software; you can redistribute it and/or modify
@@ -96,6 +96,7 @@ struct onenand_chip {
void __iomem *base;
unsigned int chipsize;
unsigned int device_id;
+ unsigned int version_id;
unsigned int density_mask;
unsigned int options;
@@ -149,7 +150,8 @@ struct onenand_chip {
/*
* Options bits
*/
-#define ONENAND_CONT_LOCK (0x0001)
+#define ONENAND_HAS_CONT_LOCK (0x0001)
+#define ONENAND_HAS_UNLOCK_ALL (0x0002)
#define ONENAND_PAGEBUF_ALLOC (0x1000)
/*
diff --git a/include/linux/mtd/onenand_regs.h b/include/linux/mtd/onenand_regs.h
index 4a72818d2545..9e409fe6ded6 100644
--- a/include/linux/mtd/onenand_regs.h
+++ b/include/linux/mtd/onenand_regs.h
@@ -3,7 +3,7 @@
*
* OneNAND Register header file
*
- * Copyright (C) 2005 Samsung Electronics
+ * Copyright (C) 2005-2006 Samsung Electronics
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@@ -72,6 +72,7 @@
#define ONENAND_DEVICE_VCC_MASK (0x3)
#define ONENAND_DEVICE_DENSITY_512Mb (0x002)
+#define ONENAND_DEVICE_DENSITY_1Gb (0x003)
/*
* Version ID Register F002h (R)
@@ -110,6 +111,7 @@
#define ONENAND_CMD_UNLOCK (0x23)
#define ONENAND_CMD_LOCK (0x2A)
#define ONENAND_CMD_LOCK_TIGHT (0x2C)
+#define ONENAND_CMD_UNLOCK_ALL (0x27)
#define ONENAND_CMD_ERASE (0x94)
#define ONENAND_CMD_RESET (0xF0)
#define ONENAND_CMD_OTP_ACCESS (0x65)
diff --git a/include/mtd/Kbuild b/include/mtd/Kbuild
index 13e7a3c6d794..e0fe92b03a4e 100644
--- a/include/mtd/Kbuild
+++ b/include/mtd/Kbuild
@@ -1,6 +1,5 @@
header-y += inftl-user.h
header-y += jffs2-user.h
+header-y += mtd-abi.h
header-y += mtd-user.h
header-y += nftl-user.h
-
-unifdef-y += mtd-abi.h
diff --git a/include/mtd/mtd-abi.h b/include/mtd/mtd-abi.h
index b0a67b7ffdcd..f913c30d7b89 100644
--- a/include/mtd/mtd-abi.h
+++ b/include/mtd/mtd-abi.h
@@ -7,12 +7,6 @@
#ifndef __MTD_ABI_H__
#define __MTD_ABI_H__
-#ifndef __KERNEL__
-/* Urgh. The whole point of splitting this out into
- separate files was to avoid #ifdef __KERNEL__ */
-#define __user
-#endif
-
struct erase_info_user {
uint32_t start;
uint32_t length;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-14 19:04:16 +0000