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path: root/drivers/mtd
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Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/nand/nand_base.c152
1 files changed, 78 insertions, 74 deletions
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index b03953f..758b53f 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -71,7 +71,7 @@ static struct nand_ecclayout nand_oob_8 = {
{.offset = 3,
.length = 2},
{.offset = 6,
- .length = 2}}
+ .length = 2} }
};
static struct nand_ecclayout nand_oob_16 = {
@@ -79,7 +79,7 @@ static struct nand_ecclayout nand_oob_16 = {
.eccpos = {0, 1, 2, 3, 6, 7},
.oobfree = {
{.offset = 8,
- . length = 8}}
+ . length = 8} }
};
static struct nand_ecclayout nand_oob_64 = {
@@ -90,24 +90,23 @@ static struct nand_ecclayout nand_oob_64 = {
56, 57, 58, 59, 60, 61, 62, 63},
.oobfree = {
{.offset = 2,
- .length = 38}}
+ .length = 38} }
};
static struct nand_ecclayout nand_oob_128 = {
.eccbytes = 48,
.eccpos = {
- 80, 81, 82, 83, 84, 85, 86, 87,
- 88, 89, 90, 91, 92, 93, 94, 95,
- 96, 97, 98, 99, 100, 101, 102, 103,
+ 80, 81, 82, 83, 84, 85, 86, 87,
+ 88, 89, 90, 91, 92, 93, 94, 95,
+ 96, 97, 98, 99, 100, 101, 102, 103,
104, 105, 106, 107, 108, 109, 110, 111,
112, 113, 114, 115, 116, 117, 118, 119,
120, 121, 122, 123, 124, 125, 126, 127},
.oobfree = {
{.offset = 2,
- .length = 78}}
+ .length = 78} }
};
-
static int nand_get_device(struct nand_chip *chip, struct mtd_info *mtd,
int new_state);
@@ -122,7 +121,7 @@ static int nand_wait(struct mtd_info *mtd, struct nand_chip *this);
*
* Deselect, release chip lock and wake up anyone waiting on the device
*/
-static void nand_release_device (struct mtd_info *mtd)
+static void nand_release_device(struct mtd_info *mtd)
{
struct nand_chip *this = mtd->priv;
this->select_chip(mtd, -1); /* De-select the NAND device */
@@ -769,8 +768,9 @@ static int nand_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
*
* We need a special oob layout and handling even when OOB isn't used.
*/
-static int nand_read_page_raw_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
- uint8_t *buf, int page)
+static int nand_read_page_raw_syndrome(struct mtd_info *mtd,
+ struct nand_chip *chip,
+ uint8_t *buf, int page)
{
int eccsize = chip->ecc.size;
int eccbytes = chip->ecc.bytes;
@@ -851,7 +851,8 @@ static int nand_read_page_swecc(struct mtd_info *mtd, struct nand_chip *chip,
* @readlen: data length
* @bufpoi: buffer to store read data
*/
-static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip, uint32_t data_offs, uint32_t readlen, uint8_t *bufpoi)
+static int nand_read_subpage(struct mtd_info *mtd, struct nand_chip *chip,
+ uint32_t data_offs, uint32_t readlen, uint8_t *bufpoi)
{
int start_step, end_step, num_steps;
uint32_t *eccpos = chip->ecc.layout->eccpos;
@@ -1083,7 +1084,7 @@ static int nand_read_page_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
static uint8_t *nand_transfer_oob(struct nand_chip *chip, uint8_t *oob,
struct mtd_oob_ops *ops, size_t len)
{
- switch(ops->mode) {
+ switch (ops->mode) {
case MTD_OOB_PLACE:
case MTD_OOB_RAW:
@@ -1095,7 +1096,7 @@ static uint8_t *nand_transfer_oob(struct nand_chip *chip, uint8_t *oob,
uint32_t boffs = 0, roffs = ops->ooboffs;
size_t bytes = 0;
- for(; free->length && len; free++, len -= bytes) {
+ for (; free->length && len; free++, len -= bytes) {
/* Read request not from offset 0 ? */
if (unlikely(roffs)) {
if (roffs >= free->length) {
@@ -1156,7 +1157,7 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
buf = ops->datbuf;
oob = ops->oobbuf;
- while(1) {
+ while (1) {
WATCHDOG_RESET();
bytes = min(mtd->writesize - col, readlen);
@@ -1174,12 +1175,13 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
/* Now read the page into the buffer */
if (unlikely(ops->mode == MTD_OOB_RAW))
ret = chip->ecc.read_page_raw(mtd, chip,
- bufpoi, page);
+ bufpoi, page);
else if (!aligned && NAND_SUBPAGE_READ(chip) && !oob)
- ret = chip->ecc.read_subpage(mtd, chip, col, bytes, bufpoi);
+ ret = chip->ecc.read_subpage(mtd, chip,
+ col, bytes, bufpoi);
else
ret = chip->ecc.read_page(mtd, chip, bufpoi,
- page);
+ page);
if (ret < 0)
break;
@@ -1260,11 +1262,11 @@ static int nand_do_read_ops(struct mtd_info *mtd, loff_t from,
if (mtd->ecc_stats.failed - stats.failed)
return -EBADMSG;
- return mtd->ecc_stats.corrected - stats.corrected ? -EUCLEAN : 0;
+ return mtd->ecc_stats.corrected - stats.corrected ? -EUCLEAN : 0;
}
/**
- * nand_read - [MTD Interface] MTD compability function for nand_do_read_ecc
+ * nand_read - [MTD Interface] MTD compatibility function for nand_do_read_ecc
* @mtd: MTD device structure
* @from: offset to read from
* @len: number of bytes to read
@@ -1457,8 +1459,8 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from,
int len;
uint8_t *buf = ops->oobbuf;
- MTDDEBUG (MTD_DEBUG_LEVEL3, "nand_read_oob: from = 0x%08Lx, len = %i\n",
- (unsigned long long)from, readlen);
+ MTDDEBUG(MTD_DEBUG_LEVEL3, "%s: from = 0x%08Lx, len = %i\n",
+ __func__, (unsigned long long)from, readlen);
if (ops->mode == MTD_OOB_AUTO)
len = chip->ecc.layout->oobavail;
@@ -1466,8 +1468,8 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from,
len = mtd->oobsize;
if (unlikely(ops->ooboffs >= len)) {
- MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_read_oob: "
- "Attempt to start read outside oob\n");
+ MTDDEBUG(MTD_DEBUG_LEVEL0, "%s: Attempt to start read "
+ "outside oob\n", __func__);
return -EINVAL;
}
@@ -1475,8 +1477,8 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from,
if (unlikely(from >= mtd->size ||
ops->ooboffs + readlen > ((mtd->size >> chip->page_shift) -
(from >> chip->page_shift)) * len)) {
- MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_read_oob: "
- "Attempt read beyond end of device\n");
+ MTDDEBUG(MTD_DEBUG_LEVEL0, "%s: Attempt read beyond end "
+ "of device\n", __func__);
return -EINVAL;
}
@@ -1487,7 +1489,7 @@ static int nand_do_read_oob(struct mtd_info *mtd, loff_t from,
realpage = (int)(from >> chip->page_shift);
page = realpage & chip->pagemask;
- while(1) {
+ while (1) {
WATCHDOG_RESET();
sndcmd = chip->ecc.read_oob(mtd, chip, page, sndcmd);
@@ -1551,14 +1553,14 @@ static int nand_read_oob(struct mtd_info *mtd, loff_t from,
/* Do not allow reads past end of device */
if (ops->datbuf && (from + ops->len) > mtd->size) {
- MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_read_oob: "
- "Attempt read beyond end of device\n");
+ MTDDEBUG(MTD_DEBUG_LEVEL0, "%s: Attempt read "
+ "beyond end of device\n", __func__);
return -EINVAL;
}
nand_get_device(chip, mtd, FL_READING);
- switch(ops->mode) {
+ switch (ops->mode) {
case MTD_OOB_PLACE:
case MTD_OOB_AUTO:
case MTD_OOB_RAW:
@@ -1573,7 +1575,7 @@ static int nand_read_oob(struct mtd_info *mtd, loff_t from,
else
ret = nand_do_read_ops(mtd, from, ops);
- out:
+out:
nand_release_device(mtd);
return ret;
}
@@ -1602,8 +1604,9 @@ static void nand_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
*
* We need a special oob layout and handling even when ECC isn't checked.
*/
-static void nand_write_page_raw_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
- const uint8_t *buf)
+static void nand_write_page_raw_syndrome(struct mtd_info *mtd,
+ struct nand_chip *chip,
+ const uint8_t *buf)
{
int eccsize = chip->ecc.size;
int eccbytes = chip->ecc.bytes;
@@ -1797,7 +1800,7 @@ static uint8_t *nand_fill_oob(struct nand_chip *chip, uint8_t *oob,
{
size_t len = ops->ooblen;
- switch(ops->mode) {
+ switch (ops->mode) {
case MTD_OOB_PLACE:
case MTD_OOB_RAW:
@@ -1809,7 +1812,7 @@ static uint8_t *nand_fill_oob(struct nand_chip *chip, uint8_t *oob,
uint32_t boffs = 0, woffs = ops->ooboffs;
size_t bytes = 0;
- for(; free->length && len; free++, len -= bytes) {
+ for (; free->length && len; free++, len -= bytes) {
/* Write request not from offset 0 ? */
if (unlikely(woffs)) {
if (woffs >= free->length) {
@@ -1887,7 +1890,7 @@ static int nand_do_write_ops(struct mtd_info *mtd, loff_t to,
if (likely(!oob))
memset(chip->oob_poi, 0xff, mtd->oobsize);
- while(1) {
+ while (1) {
WATCHDOG_RESET();
int bytes = mtd->writesize;
@@ -1986,8 +1989,8 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
int chipnr, page, status, len;
struct nand_chip *chip = mtd->priv;
- MTDDEBUG (MTD_DEBUG_LEVEL3, "nand_write_oob: to = 0x%08x, len = %i\n",
- (unsigned int)to, (int)ops->ooblen);
+ MTDDEBUG(MTD_DEBUG_LEVEL3, "%s: to = 0x%08x, len = %i\n",
+ __func__, (unsigned int)to, (int)ops->ooblen);
if (ops->mode == MTD_OOB_AUTO)
len = chip->ecc.layout->oobavail;
@@ -1996,24 +1999,24 @@ static int nand_do_write_oob(struct mtd_info *mtd, loff_t to,
/* Do not allow write past end of page */
if ((ops->ooboffs + ops->ooblen) > len) {
- MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_write_oob: "
- "Attempt to write past end of page\n");
+ MTDDEBUG(MTD_DEBUG_LEVEL0, "%s: Attempt to write "
+ "past end of page\n", __func__);
return -EINVAL;
}
if (unlikely(ops->ooboffs >= len)) {
- MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_read_oob: "
- "Attempt to start write outside oob\n");
+ MTDDEBUG(MTD_DEBUG_LEVEL0, "%s: Attempt to start "
+ "write outside oob\n", __func__);
return -EINVAL;
}
- /* Do not allow reads past end of device */
+ /* Do not allow write past end of device */
if (unlikely(to >= mtd->size ||
ops->ooboffs + ops->ooblen >
((mtd->size >> chip->page_shift) -
(to >> chip->page_shift)) * len)) {
- MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_read_oob: "
- "Attempt write beyond end of device\n");
+ MTDDEBUG(MTD_DEBUG_LEVEL0, "%s: Attempt write beyond "
+ "end of device\n", __func__);
return -EINVAL;
}
@@ -2068,14 +2071,14 @@ static int nand_write_oob(struct mtd_info *mtd, loff_t to,
/* Do not allow writes past end of device */
if (ops->datbuf && (to + ops->len) > mtd->size) {
- MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_read_oob: "
- "Attempt read beyond end of device\n");
+ MTDDEBUG(MTD_DEBUG_LEVEL0, "%s: Attempt write beyond "
+ "end of device\n", __func__);
return -EINVAL;
}
nand_get_device(chip, mtd, FL_WRITING);
- switch(ops->mode) {
+ switch (ops->mode) {
case MTD_OOB_PLACE:
case MTD_OOB_AUTO:
case MTD_OOB_RAW:
@@ -2090,7 +2093,7 @@ static int nand_write_oob(struct mtd_info *mtd, loff_t to,
else
ret = nand_do_write_ops(mtd, to, ops);
- out:
+out:
nand_release_device(mtd);
return ret;
}
@@ -2159,9 +2162,9 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
unsigned int bbt_masked_page = 0xffffffff;
loff_t len;
- MTDDEBUG(MTD_DEBUG_LEVEL3, "nand_erase: start = 0x%012llx, "
- "len = %llu\n", (unsigned long long) instr->addr,
- (unsigned long long) instr->len);
+ MTDDEBUG(MTD_DEBUG_LEVEL3, "%s: start = 0x%012llx, len = %llu\n",
+ __func__, (unsigned long long)instr->addr,
+ (unsigned long long)instr->len);
/* Start address must align on block boundary */
if (instr->addr & ((1 << chip->phys_erase_shift) - 1)) {
@@ -2200,8 +2203,8 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
/* Check, if it is write protected */
if (nand_check_wp(mtd)) {
- MTDDEBUG (MTD_DEBUG_LEVEL0,
- "nand_erase: Device is write protected!!!\n");
+ MTDDEBUG(MTD_DEBUG_LEVEL0, "%s: Device is write protected!!!\n",
+ __func__);
instr->state = MTD_ERASE_FAILED;
goto erase_exit;
}
@@ -2227,8 +2230,8 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
*/
if (!instr->scrub && nand_block_checkbad(mtd, ((loff_t) page) <<
chip->page_shift, 0, allowbbt)) {
- printk(KERN_WARNING "nand_erase: attempt to erase a "
- "bad block at page 0x%08x\n", page);
+ printk(KERN_WARNING "%s: attempt to erase a bad block "
+ "at page 0x%08x\n", __func__, page);
instr->state = MTD_ERASE_FAILED;
goto erase_exit;
}
@@ -2255,10 +2258,11 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
/* See if block erase succeeded */
if (status & NAND_STATUS_FAIL) {
- MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_erase: "
- "Failed erase, page 0x%08x\n", page);
+ MTDDEBUG(MTD_DEBUG_LEVEL0, "%s: Failed erase, "
+ "page 0x%08x\n", __func__, page);
instr->state = MTD_ERASE_FAILED;
- instr->fail_addr = ((loff_t)page << chip->page_shift);
+ instr->fail_addr =
+ ((loff_t)page << chip->page_shift);
goto erase_exit;
}
@@ -2293,7 +2297,7 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
}
instr->state = MTD_ERASE_DONE;
- erase_exit:
+erase_exit:
ret = instr->state == MTD_ERASE_DONE ? 0 : -EIO;
@@ -2315,9 +2319,9 @@ int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr,
if (!rewrite_bbt[chipnr])
continue;
/* update the BBT for chip */
- MTDDEBUG (MTD_DEBUG_LEVEL0, "nand_erase_nand: nand_update_bbt "
- "(%d:0x%0llx 0x%0x)\n", chipnr, rewrite_bbt[chipnr],
- chip->bbt_td->pages[chipnr]);
+ MTDDEBUG(MTD_DEBUG_LEVEL0, "%s: nand_update_bbt "
+ "(%d:0x%0llx 0x%0x)\n", __func__, chipnr,
+ rewrite_bbt[chipnr], chip->bbt_td->pages[chipnr]);
nand_update_bbt(mtd, rewrite_bbt[chipnr]);
}
@@ -2335,7 +2339,7 @@ static void nand_sync(struct mtd_info *mtd)
{
struct nand_chip *chip = mtd->priv;
- MTDDEBUG (MTD_DEBUG_LEVEL3, "nand_sync: called\n");
+ MTDDEBUG(MTD_DEBUG_LEVEL3, "%s: called\n", __func__);
/* Grab the lock and see if the device is available */
nand_get_device(chip, mtd, FL_SYNCING);
@@ -2433,8 +2437,7 @@ static u16 onfi_crc16(u16 crc, u8 const *p, size_t len)
/*
* Check if the NAND chip is ONFI compliant, returns 1 if it is, 0 otherwise
*/
-static int nand_flash_detect_onfi(struct mtd_info *mtd,
- struct nand_chip *chip,
+static int nand_flash_detect_onfi(struct mtd_info *mtd, struct nand_chip *chip,
int *busw)
{
struct nand_onfi_params *p = &chip->onfi_params;
@@ -2451,7 +2454,7 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd,
for (i = 0; i < 3; i++) {
chip->read_buf(mtd, (uint8_t *)p, sizeof(*p));
if (onfi_crc16(ONFI_CRC_BASE, (uint8_t *)p, 254) ==
- le16_to_cpu(p->crc)) {
+ le16_to_cpu(p->crc)) {
printk(KERN_INFO "ONFI param page %d valid\n", i);
break;
}
@@ -2476,8 +2479,8 @@ static int nand_flash_detect_onfi(struct mtd_info *mtd,
chip->onfi_version = 0;
if (!chip->onfi_version) {
- printk(KERN_INFO "%s: unsupported ONFI "
- "version: %d\n", __func__, val);
+ printk(KERN_INFO "%s: unsupported ONFI version: %d\n",
+ __func__, val);
return 0;
}
@@ -2705,7 +2708,8 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips,
nand_set_defaults(chip, busw);
/* Read the flash type */
- type = nand_get_flash_type(mtd, chip, busw, &nand_maf_id, &nand_dev_id, table);
+ type = nand_get_flash_type(mtd, chip, busw,
+ &nand_maf_id, &nand_dev_id, table);
if (IS_ERR(type)) {
#ifndef CONFIG_SYS_NAND_QUIET_TEST
@@ -2797,7 +2801,7 @@ int nand_scan_tail(struct mtd_info *mtd)
/* Similar to NAND_ECC_HW, but a separate read_page handle */
if (!chip->ecc.calculate || !chip->ecc.correct ||
!chip->ecc.hwctl) {
- printk(KERN_WARNING "No ECC functions supplied, "
+ printk(KERN_WARNING "No ECC functions supplied; "
"Hardware ECC not possible\n");
BUG();
}
@@ -2826,7 +2830,7 @@ int nand_scan_tail(struct mtd_info *mtd)
chip->ecc.read_page == nand_read_page_hwecc ||
!chip->ecc.write_page ||
chip->ecc.write_page == nand_write_page_hwecc)) {
- printk(KERN_WARNING "No ECC functions supplied, "
+ printk(KERN_WARNING "No ECC functions supplied; "
"Hardware ECC not possible\n");
BUG();
}
@@ -2933,7 +2937,7 @@ int nand_scan_tail(struct mtd_info *mtd)
* mode
*/
chip->ecc.steps = mtd->writesize / chip->ecc.size;
- if(chip->ecc.steps * chip->ecc.size != mtd->writesize) {
+ if (chip->ecc.steps * chip->ecc.size != mtd->writesize) {
printk(KERN_WARNING "Invalid ecc parameters\n");
BUG();
}
@@ -2945,7 +2949,7 @@ int nand_scan_tail(struct mtd_info *mtd)
*/
if (!(chip->options & NAND_NO_SUBPAGE_WRITE) &&
!(chip->cellinfo & NAND_CI_CELLTYPE_MSK)) {
- switch(chip->ecc.steps) {
+ switch (chip->ecc.steps) {
case 2:
mtd->subpage_sft = 1;
break;
generated by cgit v1.1 at 2024-12-23 14:46:24 +0000