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path: root/drivers/mtd/nand/nand_base.c
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Diffstat (limited to 'drivers/mtd/nand/nand_base.c')
-rw-r--r--drivers/mtd/nand/nand_base.c694
1 files changed, 337 insertions, 357 deletions
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 95e96fa1fce..fdaf32083ad 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -92,24 +92,24 @@ static struct nand_oobinfo nand_oob_8 = {
.useecc = MTD_NANDECC_AUTOPLACE,
.eccbytes = 3,
.eccpos = {0, 1, 2},
- .oobfree = { {3, 2}, {6, 2} }
+ .oobfree = {{3, 2}, {6, 2}}
};
static struct nand_oobinfo nand_oob_16 = {
.useecc = MTD_NANDECC_AUTOPLACE,
.eccbytes = 6,
.eccpos = {0, 1, 2, 3, 6, 7},
- .oobfree = { {8, 8} }
+ .oobfree = {{8, 8}}
};
static struct nand_oobinfo nand_oob_64 = {
.useecc = MTD_NANDECC_AUTOPLACE,
.eccbytes = 24,
.eccpos = {
- 40, 41, 42, 43, 44, 45, 46, 47,
- 48, 49, 50, 51, 52, 53, 54, 55,
- 56, 57, 58, 59, 60, 61, 62, 63},
- .oobfree = { {2, 38} }
+ 40, 41, 42, 43, 44, 45, 46, 47,
+ 48, 49, 50, 51, 52, 53, 54, 55,
+ 56, 57, 58, 59, 60, 61, 62, 63},
+ .oobfree = {{2, 38}}
};
/* This is used for padding purposes in nand_write_oob */
@@ -131,32 +131,32 @@ static void nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len);
static void nand_read_buf(struct mtd_info *mtd, u_char *buf, int len);
static int nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len);
-static int nand_read (struct mtd_info *mtd, loff_t from, size_t len, size_t * retlen, u_char * buf);
-static int nand_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
- size_t * retlen, u_char * buf, u_char * eccbuf, struct nand_oobinfo *oobsel);
-static int nand_read_oob (struct mtd_info *mtd, loff_t from, size_t len, size_t * retlen, u_char * buf);
-static int nand_write (struct mtd_info *mtd, loff_t to, size_t len, size_t * retlen, const u_char * buf);
-static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
- size_t * retlen, const u_char * buf, u_char * eccbuf, struct nand_oobinfo *oobsel);
-static int nand_write_oob (struct mtd_info *mtd, loff_t to, size_t len, size_t * retlen, const u_char *buf);
-static int nand_writev (struct mtd_info *mtd, const struct kvec *vecs,
- unsigned long count, loff_t to, size_t * retlen);
-static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs,
- unsigned long count, loff_t to, size_t * retlen, u_char *eccbuf, struct nand_oobinfo *oobsel);
-static int nand_erase (struct mtd_info *mtd, struct erase_info *instr);
-static void nand_sync (struct mtd_info *mtd);
+static int nand_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+static int nand_read_ecc(struct mtd_info *mtd, loff_t from, size_t len,
+ size_t *retlen, u_char *buf, u_char *eccbuf, struct nand_oobinfo *oobsel);
+static int nand_read_oob(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
+static int nand_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
+static int nand_write_ecc(struct mtd_info *mtd, loff_t to, size_t len,
+ size_t *retlen, const u_char *buf, u_char *eccbuf, struct nand_oobinfo *oobsel);
+static int nand_write_oob(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
+static int nand_writev(struct mtd_info *mtd, const struct kvec *vecs, unsigned long count, loff_t to, size_t *retlen);
+static int nand_writev_ecc(struct mtd_info *mtd, const struct kvec *vecs,
+ unsigned long count, loff_t to, size_t *retlen, u_char *eccbuf,
+ struct nand_oobinfo *oobsel);
+static int nand_erase(struct mtd_info *mtd, struct erase_info *instr);
+static void nand_sync(struct mtd_info *mtd);
/* Some internal functions */
-static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int page, u_char *oob_buf,
- struct nand_oobinfo *oobsel, int mode);
+static int nand_write_page(struct mtd_info *mtd, struct nand_chip *this, int page, u_char * oob_buf,
+ struct nand_oobinfo *oobsel, int mode);
#ifdef CONFIG_MTD_NAND_VERIFY_WRITE
-static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int page, int numpages,
- u_char *oob_buf, struct nand_oobinfo *oobsel, int chipnr, int oobmode);
+static int nand_verify_pages(struct mtd_info *mtd, struct nand_chip *this, int page, int numpages,
+ u_char *oob_buf, struct nand_oobinfo *oobsel, int chipnr, int oobmode);
#else
#define nand_verify_pages(...) (0)
#endif
-static int nand_get_device (struct nand_chip *this, struct mtd_info *mtd, int new_state);
+static int nand_get_device(struct nand_chip *this, struct mtd_info *mtd, int new_state);
/**
* nand_release_device - [GENERIC] release chip
@@ -164,7 +164,7 @@ static int nand_get_device (struct nand_chip *this, struct mtd_info *mtd, int ne
*
* 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;
@@ -276,7 +276,7 @@ static void nand_write_word(struct mtd_info *mtd, u16 word)
static void nand_select_chip(struct mtd_info *mtd, int chip)
{
struct nand_chip *this = mtd->priv;
- switch(chip) {
+ switch (chip) {
case -1:
this->hwcontrol(mtd, NAND_CTL_CLRNCE);
break;
@@ -302,7 +302,7 @@ static void nand_write_buf(struct mtd_info *mtd, const u_char *buf, int len)
int i;
struct nand_chip *this = mtd->priv;
- for (i=0; i<len; i++)
+ for (i = 0; i < len; i++)
writeb(buf[i], this->IO_ADDR_W);
}
@@ -319,7 +319,7 @@ static void nand_read_buf(struct mtd_info *mtd, u_char *buf, int len)
int i;
struct nand_chip *this = mtd->priv;
- for (i=0; i<len; i++)
+ for (i = 0; i < len; i++)
buf[i] = readb(this->IO_ADDR_R);
}
@@ -336,7 +336,7 @@ static int nand_verify_buf(struct mtd_info *mtd, const u_char *buf, int len)
int i;
struct nand_chip *this = mtd->priv;
- for (i=0; i<len; i++)
+ for (i = 0; i < len; i++)
if (buf[i] != readb(this->IO_ADDR_R))
return -EFAULT;
@@ -358,7 +358,7 @@ static void nand_write_buf16(struct mtd_info *mtd, const u_char *buf, int len)
u16 *p = (u16 *) buf;
len >>= 1;
- for (i=0; i<len; i++)
+ for (i = 0; i < len; i++)
writew(p[i], this->IO_ADDR_W);
}
@@ -378,7 +378,7 @@ static void nand_read_buf16(struct mtd_info *mtd, u_char *buf, int len)
u16 *p = (u16 *) buf;
len >>= 1;
- for (i=0; i<len; i++)
+ for (i = 0; i < len; i++)
p[i] = readw(this->IO_ADDR_R);
}
@@ -397,7 +397,7 @@ static int nand_verify_buf16(struct mtd_info *mtd, const u_char *buf, int len)
u16 *p = (u16 *) buf;
len >>= 1;
- for (i=0; i<len; i++)
+ for (i = 0; i < len; i++)
if (p[i] != readw(this->IO_ADDR_R))
return -EFAULT;
@@ -423,22 +423,22 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
chipnr = (int)(ofs >> this->chip_shift);
/* Grab the lock and see if the device is available */
- nand_get_device (this, mtd, FL_READING);
+ nand_get_device(this, mtd, FL_READING);
/* Select the NAND device */
this->select_chip(mtd, chipnr);
} else
- page = (int) ofs;
+ page = (int)ofs;
if (this->options & NAND_BUSWIDTH_16) {
- this->cmdfunc (mtd, NAND_CMD_READOOB, this->badblockpos & 0xFE, page & this->pagemask);
+ this->cmdfunc(mtd, NAND_CMD_READOOB, this->badblockpos & 0xFE, page & this->pagemask);
bad = cpu_to_le16(this->read_word(mtd));
if (this->badblockpos & 0x1)
bad >>= 8;
if ((bad & 0xFF) != 0xff)
res = 1;
} else {
- this->cmdfunc (mtd, NAND_CMD_READOOB, this->badblockpos, page & this->pagemask);
+ this->cmdfunc(mtd, NAND_CMD_READOOB, this->badblockpos, page & this->pagemask);
if (this->read_byte(mtd) != 0xff)
res = 1;
}
@@ -462,22 +462,22 @@ static int nand_block_bad(struct mtd_info *mtd, loff_t ofs, int getchip)
static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
{
struct nand_chip *this = mtd->priv;
- u_char buf[2] = {0, 0};
- size_t retlen;
+ u_char buf[2] = { 0, 0 };
+ size_t retlen;
int block;
/* Get block number */
- block = ((int) ofs) >> this->bbt_erase_shift;
+ block = ((int)ofs) >> this->bbt_erase_shift;
if (this->bbt)
this->bbt[block >> 2] |= 0x01 << ((block & 0x03) << 1);
/* Do we have a flash based bad block table ? */
if (this->options & NAND_USE_FLASH_BBT)
- return nand_update_bbt (mtd, ofs);
+ return nand_update_bbt(mtd, ofs);
/* We write two bytes, so we dont have to mess with 16 bit access */
ofs += mtd->oobsize + (this->badblockpos & ~0x01);
- return nand_write_oob (mtd, ofs , 2, &retlen, buf);
+ return nand_write_oob(mtd, ofs, 2, &retlen, buf);
}
/**
@@ -487,11 +487,11 @@ static int nand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
*
* The function expects, that the device is already selected
*/
-static int nand_check_wp (struct mtd_info *mtd)
+static int nand_check_wp(struct mtd_info *mtd)
{
struct nand_chip *this = mtd->priv;
/* Check the WP bit */
- this->cmdfunc (mtd, NAND_CMD_STATUS, -1, -1);
+ this->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1);
return (this->read_byte(mtd) & NAND_STATUS_WP) ? 0 : 1;
}
@@ -505,7 +505,7 @@ static int nand_check_wp (struct mtd_info *mtd)
* Check, if the block is bad. Either by reading the bad block table or
* calling of the scan function.
*/
-static int nand_block_checkbad (struct mtd_info *mtd, loff_t ofs, int getchip, int allowbbt)
+static int nand_block_checkbad(struct mtd_info *mtd, loff_t ofs, int getchip, int allowbbt)
{
struct nand_chip *this = mtd->priv;
@@ -513,7 +513,7 @@ static int nand_block_checkbad (struct mtd_info *mtd, loff_t ofs, int getchip, i
return this->block_bad(mtd, ofs, getchip);
/* Return info from the table */
- return nand_isbad_bbt (mtd, ofs, allowbbt);
+ return nand_isbad_bbt(mtd, ofs, allowbbt);
}
DEFINE_LED_TRIGGER(nand_led_trigger);
@@ -525,7 +525,7 @@ DEFINE_LED_TRIGGER(nand_led_trigger);
static void nand_wait_ready(struct mtd_info *mtd)
{
struct nand_chip *this = mtd->priv;
- unsigned long timeo = jiffies + 2;
+ unsigned long timeo = jiffies + 2;
led_trigger_event(nand_led_trigger, LED_FULL);
/* wait until command is processed or timeout occures */
@@ -547,7 +547,7 @@ static void nand_wait_ready(struct mtd_info *mtd)
* Send command to NAND device. This function is used for small page
* devices (256/512 Bytes per page)
*/
-static void nand_command (struct mtd_info *mtd, unsigned command, int column, int page_addr)
+static void nand_command(struct mtd_info *mtd, unsigned command, int column, int page_addr)
{
register struct nand_chip *this = mtd->priv;
@@ -588,11 +588,11 @@ static void nand_command (struct mtd_info *mtd, unsigned command, int column, in
this->write_byte(mtd, column);
}
if (page_addr != -1) {
- this->write_byte(mtd, (unsigned char) (page_addr & 0xff));
- this->write_byte(mtd, (unsigned char) ((page_addr >> 8) & 0xff));
+ this->write_byte(mtd, (unsigned char)(page_addr & 0xff));
+ this->write_byte(mtd, (unsigned char)((page_addr >> 8) & 0xff));
/* One more address cycle for devices > 32MiB */
if (this->chipsize > (32 << 20))
- this->write_byte(mtd, (unsigned char) ((page_addr >> 16) & 0x0f));
+ this->write_byte(mtd, (unsigned char)((page_addr >> 16) & 0x0f));
}
/* Latch in address */
this->hwcontrol(mtd, NAND_CTL_CLRALE);
@@ -601,7 +601,7 @@ static void nand_command (struct mtd_info *mtd, unsigned command, int column, in
/*
* program and erase have their own busy handlers
* status and sequential in needs no delay
- */
+ */
switch (command) {
case NAND_CMD_PAGEPROG:
@@ -618,23 +618,23 @@ static void nand_command (struct mtd_info *mtd, unsigned command, int column, in
this->hwcontrol(mtd, NAND_CTL_SETCLE);
this->write_byte(mtd, NAND_CMD_STATUS);
this->hwcontrol(mtd, NAND_CTL_CLRCLE);
- while ( !(this->read_byte(mtd) & NAND_STATUS_READY));
+ while (!(this->read_byte(mtd) & NAND_STATUS_READY)) ;
return;
- /* This applies to read commands */
+ /* This applies to read commands */
default:
/*
* If we don't have access to the busy pin, we apply the given
* command delay
- */
+ */
if (!this->dev_ready) {
- udelay (this->chip_delay);
+ udelay(this->chip_delay);
return;
}
}
/* Apply this short delay always to ensure that we do wait tWB in
* any case on any machine. */
- ndelay (100);
+ ndelay(100);
nand_wait_ready(mtd);
}
@@ -647,11 +647,11 @@ static void nand_command (struct mtd_info *mtd, unsigned command, int column, in
* @page_addr: the page address for this command, -1 if none
*
* Send command to NAND device. This is the version for the new large page devices
- * We dont have the seperate regions as we have in the small page devices.
+ * We dont have the separate regions as we have in the small page devices.
* We must emulate NAND_CMD_READOOB to keep the code compatible.
*
*/
-static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column, int page_addr)
+static void nand_command_lp(struct mtd_info *mtd, unsigned command, int column, int page_addr)
{
register struct nand_chip *this = mtd->priv;
@@ -661,7 +661,6 @@ static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column,
command = NAND_CMD_READ0;
}
-
/* Begin command latch cycle */
this->hwcontrol(mtd, NAND_CTL_SETCLE);
/* Write out the command to the device. */
@@ -681,11 +680,11 @@ static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column,
this->write_byte(mtd, column >> 8);
}
if (page_addr != -1) {
- this->write_byte(mtd, (unsigned char) (page_addr & 0xff));
- this->write_byte(mtd, (unsigned char) ((page_addr >> 8) & 0xff));
+ this->write_byte(mtd, (unsigned char)(page_addr & 0xff));
+ this->write_byte(mtd, (unsigned char)((page_addr >> 8) & 0xff));
/* One more address cycle for devices > 128MiB */
if (this->chipsize > (128 << 20))
- this->write_byte(mtd, (unsigned char) ((page_addr >> 16) & 0xff));
+ this->write_byte(mtd, (unsigned char)((page_addr >> 16) & 0xff));
}
/* Latch in address */
this->hwcontrol(mtd, NAND_CTL_CLRALE);
@@ -706,9 +705,9 @@ static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column,
case NAND_CMD_DEPLETE1:
return;
- /*
- * read error status commands require only a short delay
- */
+ /*
+ * read error status commands require only a short delay
+ */
case NAND_CMD_STATUS_ERROR:
case NAND_CMD_STATUS_ERROR0:
case NAND_CMD_STATUS_ERROR1:
@@ -724,7 +723,7 @@ static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column,
this->hwcontrol(mtd, NAND_CTL_SETCLE);
this->write_byte(mtd, NAND_CMD_STATUS);
this->hwcontrol(mtd, NAND_CTL_CLRCLE);
- while ( !(this->read_byte(mtd) & NAND_STATUS_READY));
+ while (!(this->read_byte(mtd) & NAND_STATUS_READY)) ;
return;
case NAND_CMD_READ0:
@@ -736,21 +735,21 @@ static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column,
this->hwcontrol(mtd, NAND_CTL_CLRCLE);
/* Fall through into ready check */
- /* This applies to read commands */
+ /* This applies to read commands */
default:
/*
* If we don't have access to the busy pin, we apply the given
* command delay
- */
+ */
if (!this->dev_ready) {
- udelay (this->chip_delay);
+ udelay(this->chip_delay);
return;
}
}
/* Apply this short delay always to ensure that we do wait tWB in
* any case on any machine. */
- ndelay (100);
+ ndelay(100);
nand_wait_ready(mtd);
}
@@ -763,16 +762,16 @@ static void nand_command_lp (struct mtd_info *mtd, unsigned command, int column,
*
* Get the device and lock it for exclusive access
*/
-static int nand_get_device (struct nand_chip *this, struct mtd_info *mtd, int new_state)
+static int nand_get_device(struct nand_chip *this, struct mtd_info *mtd, int new_state)
{
struct nand_chip *active;
spinlock_t *lock;
wait_queue_head_t *wq;
- DECLARE_WAITQUEUE (wait, current);
+ DECLARE_WAITQUEUE(wait, current);
lock = (this->controller) ? &this->controller->lock : &this->chip_lock;
wq = (this->controller) ? &this->controller->wq : &this->wq;
-retry:
+ retry:
active = this;
spin_lock(lock);
@@ -814,24 +813,24 @@ retry:
static int nand_wait(struct mtd_info *mtd, struct nand_chip *this, int state)
{
- unsigned long timeo = jiffies;
- int status;
+ unsigned long timeo = jiffies;
+ int status;
if (state == FL_ERASING)
- timeo += (HZ * 400) / 1000;
+ timeo += (HZ * 400) / 1000;
else
- timeo += (HZ * 20) / 1000;
+ timeo += (HZ * 20) / 1000;
led_trigger_event(nand_led_trigger, LED_FULL);
/* Apply this short delay always to ensure that we do wait tWB in
* any case on any machine. */
- ndelay (100);
+ ndelay(100);
if ((state == FL_ERASING) && (this->options & NAND_IS_AND))
- this->cmdfunc (mtd, NAND_CMD_STATUS_MULTI, -1, -1);
+ this->cmdfunc(mtd, NAND_CMD_STATUS_MULTI, -1, -1);
else
- this->cmdfunc (mtd, NAND_CMD_STATUS, -1, -1);
+ this->cmdfunc(mtd, NAND_CMD_STATUS, -1, -1);
while (time_before(jiffies, timeo)) {
/* Check, if we were interrupted */
@@ -849,7 +848,7 @@ static int nand_wait(struct mtd_info *mtd, struct nand_chip *this, int state)
}
led_trigger_event(nand_led_trigger, LED_OFF);
- status = (int) this->read_byte(mtd);
+ status = (int)this->read_byte(mtd);
return status;
}
@@ -868,31 +867,31 @@ static int nand_wait(struct mtd_info *mtd, struct nand_chip *this, int state)
*
* Cached programming is not supported yet.
*/
-static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int page,
- u_char *oob_buf, struct nand_oobinfo *oobsel, int cached)
+static int nand_write_page(struct mtd_info *mtd, struct nand_chip *this, int page,
+ u_char *oob_buf, struct nand_oobinfo *oobsel, int cached)
{
- int i, status;
- u_char ecc_code[32];
- int eccmode = oobsel->useecc ? this->eccmode : NAND_ECC_NONE;
- int *oob_config = oobsel->eccpos;
- int datidx = 0, eccidx = 0, eccsteps = this->eccsteps;
- int eccbytes = 0;
+ int i, status;
+ u_char ecc_code[32];
+ int eccmode = oobsel->useecc ? this->eccmode : NAND_ECC_NONE;
+ int *oob_config = oobsel->eccpos;
+ int datidx = 0, eccidx = 0, eccsteps = this->eccsteps;
+ int eccbytes = 0;
/* FIXME: Enable cached programming */
cached = 0;
/* Send command to begin auto page programming */
- this->cmdfunc (mtd, NAND_CMD_SEQIN, 0x00, page);
+ this->cmdfunc(mtd, NAND_CMD_SEQIN, 0x00, page);
/* Write out complete page of data, take care of eccmode */
switch (eccmode) {
- /* No ecc, write all */
+ /* No ecc, write all */
case NAND_ECC_NONE:
- printk (KERN_WARNING "Writing data without ECC to NAND-FLASH is not recommended\n");
+ printk(KERN_WARNING "Writing data without ECC to NAND-FLASH is not recommended\n");
this->write_buf(mtd, this->data_poi, mtd->oobblock);
break;
- /* Software ecc 3/256, write all */
+ /* Software ecc 3/256, write all */
case NAND_ECC_SOFT:
for (; eccsteps; eccsteps--) {
this->calculate_ecc(mtd, &this->data_poi[datidx], ecc_code);
@@ -928,11 +927,11 @@ static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int pa
this->write_buf(mtd, oob_buf, mtd->oobsize);
/* Send command to actually program the data */
- this->cmdfunc (mtd, cached ? NAND_CMD_CACHEDPROG : NAND_CMD_PAGEPROG, -1, -1);
+ this->cmdfunc(mtd, cached ? NAND_CMD_CACHEDPROG : NAND_CMD_PAGEPROG, -1, -1);
if (!cached) {
/* call wait ready function */
- status = this->waitfunc (mtd, this, FL_WRITING);
+ status = this->waitfunc(mtd, this, FL_WRITING);
/* See if operation failed and additional status checks are available */
if ((status & NAND_STATUS_FAIL) && (this->errstat)) {
@@ -941,12 +940,12 @@ static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int pa
/* See if device thinks it succeeded */
if (status & NAND_STATUS_FAIL) {
- DEBUG (MTD_DEBUG_LEVEL0, "%s: " "Failed write, page 0x%08x, ", __FUNCTION__, page);
+ DEBUG(MTD_DEBUG_LEVEL0, "%s: " "Failed write, page 0x%08x, ", __FUNCTION__, page);
return -EIO;
}
} else {
/* FIXME: Implement cached programming ! */
- /* wait until cache is ready*/
+ /* wait until cache is ready */
// status = this->waitfunc (mtd, this, FL_CACHEDRPG);
}
return 0;
@@ -972,24 +971,24 @@ static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int pa
* the error later when the ECC page check fails, but we would rather catch
* it early in the page write stage. Better to write no data than invalid data.
*/
-static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int page, int numpages,
- u_char *oob_buf, struct nand_oobinfo *oobsel, int chipnr, int oobmode)
+static int nand_verify_pages(struct mtd_info *mtd, struct nand_chip *this, int page, int numpages,
+ u_char *oob_buf, struct nand_oobinfo *oobsel, int chipnr, int oobmode)
{
- int i, j, datidx = 0, oobofs = 0, res = -EIO;
- int eccsteps = this->eccsteps;
- int hweccbytes;
- u_char oobdata[64];
+ int i, j, datidx = 0, oobofs = 0, res = -EIO;
+ int eccsteps = this->eccsteps;
+ int hweccbytes;
+ u_char oobdata[64];
hweccbytes = (this->options & NAND_HWECC_SYNDROME) ? (oobsel->eccbytes / eccsteps) : 0;
/* Send command to read back the first page */
- this->cmdfunc (mtd, NAND_CMD_READ0, 0, page);
+ this->cmdfunc(mtd, NAND_CMD_READ0, 0, page);
- for(;;) {
+ for (;;) {
for (j = 0; j < eccsteps; j++) {
/* Loop through and verify the data */
if (this->verify_buf(mtd, &this->data_poi[datidx], mtd->eccsize)) {
- DEBUG (MTD_DEBUG_LEVEL0, "%s: " "Failed write verify, page 0x%08x ", __FUNCTION__, page);
+ DEBUG(MTD_DEBUG_LEVEL0, "%s: " "Failed write verify, page 0x%08x ", __FUNCTION__, page);
goto out;
}
datidx += mtd->eccsize;
@@ -997,7 +996,7 @@ static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int
if (!hweccbytes)
continue;
if (this->verify_buf(mtd, &this->oob_buf[oobofs], hweccbytes)) {
- DEBUG (MTD_DEBUG_LEVEL0, "%s: " "Failed write verify, page 0x%08x ", __FUNCTION__, page);
+ DEBUG(MTD_DEBUG_LEVEL0, "%s: " "Failed write verify, page 0x%08x ", __FUNCTION__, page);
goto out;
}
oobofs += hweccbytes;
@@ -1008,7 +1007,7 @@ static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int
*/
if (oobmode) {
if (this->verify_buf(mtd, &oob_buf[oobofs], mtd->oobsize - hweccbytes * eccsteps)) {
- DEBUG (MTD_DEBUG_LEVEL0, "%s: " "Failed write verify, page 0x%08x ", __FUNCTION__, page);
+ DEBUG(MTD_DEBUG_LEVEL0, "%s: " "Failed write verify, page 0x%08x ", __FUNCTION__, page);
goto out;
}
} else {
@@ -1020,10 +1019,9 @@ static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int
for (i = 0; i < ecccnt; i++) {
int idx = oobsel->eccpos[i];
- if (oobdata[idx] != oob_buf[oobofs + idx] ) {
- DEBUG (MTD_DEBUG_LEVEL0,
- "%s: Failed ECC write "
- "verify, page 0x%08x, " "%6i bytes were succesful\n", __FUNCTION__, page, i);
+ if (oobdata[idx] != oob_buf[oobofs + idx]) {
+ DEBUG(MTD_DEBUG_LEVEL0, "%s: Failed ECC write verify, page 0x%08x, %6i bytes were succesful\n",
+ __FUNCTION__, page, i);
goto out;
}
}
@@ -1039,9 +1037,9 @@ static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int
* is marked as NOAUTOINCR by the board driver.
* Do this also before returning, so the chip is
* ready for the next command.
- */
+ */
if (!this->dev_ready)
- udelay (this->chip_delay);
+ udelay(this->chip_delay);
else
nand_wait_ready(mtd);
@@ -1049,17 +1047,16 @@ static int nand_verify_pages (struct mtd_info *mtd, struct nand_chip *this, int
if (!numpages)
return 0;
-
/* Check, if the chip supports auto page increment */
if (!NAND_CANAUTOINCR(this))
- this->cmdfunc (mtd, NAND_CMD_READ0, 0x00, page);
+ this->cmdfunc(mtd, NAND_CMD_READ0, 0x00, page);
}
/*
* Terminate the read command. We come here in case of an error
* So we must issue a reset command.
*/
-out:
- this->cmdfunc (mtd, NAND_CMD_RESET, -1, -1);
+ out:
+ this->cmdfunc(mtd, NAND_CMD_RESET, -1, -1);
return res;
}
#endif
@@ -1075,12 +1072,11 @@ out:
* This function simply calls nand_do_read_ecc with oob buffer and oobsel = NULL
* and flags = 0xff
*/
-static int nand_read (struct mtd_info *mtd, loff_t from, size_t len, size_t * retlen, u_char * buf)
+static int nand_read(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf)
{
- return nand_do_read_ecc (mtd, from, len, retlen, buf, NULL, &mtd->oobinfo, 0xff);
+ return nand_do_read_ecc(mtd, from, len, retlen, buf, NULL, &mtd->oobinfo, 0xff);
}
-
/**
* nand_read_ecc - [MTD Interface] MTD compability function for nand_do_read_ecc
* @mtd: MTD device structure
@@ -1093,8 +1089,8 @@ static int nand_read (struct mtd_info *mtd, loff_t from, size_t len, size_t * re
*
* 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, u_char * buf, u_char * oob_buf, struct nand_oobinfo *oobsel)
+static int nand_read_ecc(struct mtd_info *mtd, loff_t from, size_t len,
+ size_t *retlen, u_char *buf, u_char *oob_buf, struct nand_oobinfo *oobsel)
{
/* use userspace supplied oobinfo, if zero */
if (oobsel == NULL)
@@ -1102,7 +1098,6 @@ static int nand_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
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
@@ -1119,9 +1114,8 @@ static int nand_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
*
* NAND read with ECC
*/
-int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
- size_t * retlen, u_char * buf, u_char * oob_buf,
- struct nand_oobinfo *oobsel, int flags)
+int nand_do_read_ecc(struct mtd_info *mtd, loff_t from, size_t len,
+ size_t *retlen, u_char *buf, u_char *oob_buf, struct nand_oobinfo *oobsel, int flags)
{
int i, j, col, realpage, page, end, ecc, chipnr, sndcmd = 1;
@@ -1130,26 +1124,25 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
u_char *data_poi, *oob_data = oob_buf;
u_char ecc_calc[32];
u_char ecc_code[32];
- int eccmode, eccsteps;
- int *oob_config, datidx;
- int blockcheck = (1 << (this->phys_erase_shift - this->page_shift)) - 1;
- int eccbytes;
- int compareecc = 1;
- int oobreadlen;
+ int eccmode, eccsteps;
+ int *oob_config, datidx;
+ int blockcheck = (1 << (this->phys_erase_shift - this->page_shift)) - 1;
+ int eccbytes;
+ int compareecc = 1;
+ int oobreadlen;
-
- DEBUG (MTD_DEBUG_LEVEL3, "nand_read_ecc: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len);
+ DEBUG(MTD_DEBUG_LEVEL3, "nand_read_ecc: from = 0x%08x, len = %i\n", (unsigned int)from, (int)len);
/* Do not allow reads past end of device */
if ((from + len) > mtd->size) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_read_ecc: Attempt read beyond end of device\n");
+ DEBUG(MTD_DEBUG_LEVEL0, "nand_read_ecc: Attempt read beyond end of device\n");
*retlen = 0;
return -EINVAL;
}
/* Grab the lock and see if the device is available */
if (flags & NAND_GET_DEVICE)
- nand_get_device (this, mtd, FL_READING);
+ nand_get_device(this, mtd, FL_READING);
/* Autoplace of oob data ? Use the default placement scheme */
if (oobsel->useecc == MTD_NANDECC_AUTOPLACE)
@@ -1163,7 +1156,7 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
this->select_chip(mtd, chipnr);
/* First we calculate the starting page */
- realpage = (int) (from >> this->page_shift);
+ realpage = (int)(from >> this->page_shift);
page = realpage & this->pagemask;
/* Get raw starting column */
@@ -1201,13 +1194,13 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
if (realpage == this->pagebuf && !oob_buf) {
/* aligned read ? */
if (aligned)
- memcpy (data_poi, this->data_buf, end);
+ memcpy(data_poi, this->data_buf, end);
goto readdata;
}
/* Check, if we must send the read command */
if (sndcmd) {
- this->cmdfunc (mtd, NAND_CMD_READ0, 0x00, page);
+ this->cmdfunc(mtd, NAND_CMD_READ0, 0x00, page);
sndcmd = 0;
}
@@ -1219,24 +1212,26 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
eccsteps = this->eccsteps;
switch (eccmode) {
- case NAND_ECC_NONE: { /* No ECC, Read in a page */
- static unsigned long lastwhinge = 0;
- if ((lastwhinge / HZ) != (jiffies / HZ)) {
- printk (KERN_WARNING "Reading data from NAND FLASH without ECC is not recommended\n");
- lastwhinge = jiffies;
+ case NAND_ECC_NONE:{
+ /* No ECC, Read in a page */
+ static unsigned long lastwhinge = 0;
+ if ((lastwhinge / HZ) != (jiffies / HZ)) {
+ printk(KERN_WARNING
+ "Reading data from NAND FLASH without ECC is not recommended\n");
+ lastwhinge = jiffies;
+ }
+ this->read_buf(mtd, data_poi, end);
+ break;
}
- this->read_buf(mtd, data_poi, end);
- break;
- }
case NAND_ECC_SOFT: /* Software ECC 3/256: Read in a page + oob data */
this->read_buf(mtd, data_poi, end);
- for (i = 0, datidx = 0; eccsteps; eccsteps--, i+=3, datidx += ecc)
+ for (i = 0, datidx = 0; eccsteps; eccsteps--, i += 3, datidx += ecc)
this->calculate_ecc(mtd, &data_poi[datidx], &ecc_calc[i]);
break;
default:
- for (i = 0, datidx = 0; eccsteps; eccsteps--, i+=eccbytes, datidx += ecc) {
+ for (i = 0, datidx = 0; eccsteps; eccsteps--, i += eccbytes, datidx += ecc) {
this->enable_hwecc(mtd, NAND_ECC_READ);
this->read_buf(mtd, &data_poi[datidx], ecc);
@@ -1252,8 +1247,8 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
* does the error correction on the fly */
ecc_status = this->correct_data(mtd, &data_poi[datidx], &oob_data[i], &ecc_code[i]);
if ((ecc_status == -1) || (ecc_status > (flags && 0xff))) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_read_ecc: "
- "Failed ECC read, page 0x%08x on chip %d\n", page, chipnr);
+ DEBUG(MTD_DEBUG_LEVEL0, "nand_read_ecc: "
+ "Failed ECC read, page 0x%08x on chip %d\n", page, chipnr);
ecc_failed++;
}
} else {
@@ -1274,7 +1269,7 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
for (j = 0; j < oobsel->eccbytes; j++)
ecc_code[j] = oob_data[oob_config[j]];
- /* correct data, if neccecary */
+ /* correct data, if necessary */
for (i = 0, j = 0, datidx = 0; i < this->eccsteps; i++, datidx += ecc) {
ecc_status = this->correct_data(mtd, &data_poi[datidx], &ecc_code[j], &ecc_calc[j]);
@@ -1291,16 +1286,16 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
}
if ((ecc_status == -1) || (ecc_status > (flags && 0xff))) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_read_ecc: " "Failed ECC read, page 0x%08x\n", page);
+ DEBUG(MTD_DEBUG_LEVEL0, "nand_read_ecc: " "Failed ECC read, page 0x%08x\n", page);
ecc_failed++;
}
}
- readoob:
+ readoob:
/* check, if we have a fs supplied oob-buffer */
if (oob_buf) {
/* without autoplace. Legacy mode used by YAFFS1 */
- switch(oobsel->useecc) {
+ switch (oobsel->useecc) {
case MTD_NANDECC_AUTOPLACE:
case MTD_NANDECC_AUTOPL_USR:
/* Walk through the autoplace chunks */
@@ -1313,7 +1308,7 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
break;
case MTD_NANDECC_PLACE:
/* YAFFS1 legacy mode */
- oob_data += this->eccsteps * sizeof (int);
+ oob_data += this->eccsteps * sizeof(int);
default:
oob_data += mtd->oobsize;
}
@@ -1331,9 +1326,9 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
* Do this before the AUTOINCR check, so no problems
* arise if a chip which does auto increment
* is marked as NOAUTOINCR by the board driver.
- */
+ */
if (!this->dev_ready)
- udelay (this->chip_delay);
+ udelay(this->chip_delay);
else
nand_wait_ready(mtd);
@@ -1354,7 +1349,7 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
}
/* Check, if the chip supports auto page increment
* or if we have hit a block boundary.
- */
+ */
if (!NAND_CANAUTOINCR(this) || !(page & blockcheck))
sndcmd = 1;
}
@@ -1382,13 +1377,13 @@ int nand_do_read_ecc (struct mtd_info *mtd, loff_t from, size_t len,
*
* NAND read out-of-band data from the spare area
*/
-static int nand_read_oob (struct mtd_info *mtd, loff_t from, size_t len, size_t * retlen, u_char * buf)
+static int nand_read_oob(struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf)
{
int i, col, page, chipnr;
struct nand_chip *this = mtd->priv;
- int blockcheck = (1 << (this->phys_erase_shift - this->page_shift)) - 1;
+ int blockcheck = (1 << (this->phys_erase_shift - this->page_shift)) - 1;
- DEBUG (MTD_DEBUG_LEVEL3, "nand_read_oob: from = 0x%08x, len = %i\n", (unsigned int) from, (int) len);
+ DEBUG(MTD_DEBUG_LEVEL3, "nand_read_oob: from = 0x%08x, len = %i\n", (unsigned int)from, (int)len);
/* Shift to get page */
page = (int)(from >> this->page_shift);
@@ -1402,19 +1397,19 @@ static int nand_read_oob (struct mtd_info *mtd, loff_t from, size_t len, size_t
/* Do not allow reads past end of device */
if ((from + len) > mtd->size) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_read_oob: Attempt read beyond end of device\n");
+ DEBUG(MTD_DEBUG_LEVEL0, "nand_read_oob: Attempt read beyond end of device\n");
*retlen = 0;
return -EINVAL;
}
/* Grab the lock and see if the device is available */
- nand_get_device (this, mtd , FL_READING);
+ nand_get_device(this, mtd, FL_READING);
/* Select the NAND device */
this->select_chip(mtd, chipnr);
/* Send the read command */
- this->cmdfunc (mtd, NAND_CMD_READOOB, col, page & this->pagemask);
+ this->cmdfunc(mtd, NAND_CMD_READOOB, col, page & this->pagemask);
/*
* Read the data, if we read more than one page
* oob data, let the device transfer the data !
@@ -1444,16 +1439,16 @@ static int nand_read_oob (struct mtd_info *mtd, loff_t from, size_t len, size_t
* is marked as NOAUTOINCR by the board driver.
*/
if (!this->dev_ready)
- udelay (this->chip_delay);
+ udelay(this->chip_delay);
else
nand_wait_ready(mtd);
/* Check, if the chip supports auto page increment
* or if we have hit a block boundary.
- */
+ */
if (!NAND_CANAUTOINCR(this) || !(page & blockcheck)) {
/* For subsequent page reads set offset to 0 */
- this->cmdfunc (mtd, NAND_CMD_READOOB, 0x0, page & this->pagemask);
+ this->cmdfunc(mtd, NAND_CMD_READOOB, 0x0, page & this->pagemask);
}
}
}
@@ -1476,43 +1471,43 @@ static int nand_read_oob (struct mtd_info *mtd, loff_t from, size_t len, size_t
*
* Read raw data including oob into buffer
*/
-int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_t len, size_t ooblen)
+int nand_read_raw(struct mtd_info *mtd, uint8_t *buf, loff_t from, size_t len, size_t ooblen)
{
struct nand_chip *this = mtd->priv;
- int page = (int) (from >> this->page_shift);
- int chip = (int) (from >> this->chip_shift);
+ int page = (int)(from >> this->page_shift);
+ int chip = (int)(from >> this->chip_shift);
int sndcmd = 1;
int cnt = 0;
int pagesize = mtd->oobblock + mtd->oobsize;
- int blockcheck = (1 << (this->phys_erase_shift - this->page_shift)) - 1;
+ int blockcheck = (1 << (this->phys_erase_shift - this->page_shift)) - 1;
/* Do not allow reads past end of device */
if ((from + len) > mtd->size) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_read_raw: Attempt read beyond end of device\n");
+ DEBUG(MTD_DEBUG_LEVEL0, "nand_read_raw: Attempt read beyond end of device\n");
return -EINVAL;
}
/* Grab the lock and see if the device is available */
- nand_get_device (this, mtd , FL_READING);
+ nand_get_device(this, mtd, FL_READING);
- this->select_chip (mtd, chip);
+ this->select_chip(mtd, chip);
/* Add requested oob length */
len += ooblen;
while (len) {
if (sndcmd)
- this->cmdfunc (mtd, NAND_CMD_READ0, 0, page & this->pagemask);
+ this->cmdfunc(mtd, NAND_CMD_READ0, 0, page & this->pagemask);
sndcmd = 0;
- this->read_buf (mtd, &buf[cnt], pagesize);
+ this->read_buf(mtd, &buf[cnt], pagesize);
len -= pagesize;
cnt += pagesize;
page++;
if (!this->dev_ready)
- udelay (this->chip_delay);
+ udelay(this->chip_delay);
else
nand_wait_ready(mtd);
@@ -1526,7 +1521,6 @@ int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_t len,
return 0;
}
-
/**
* nand_prepare_oobbuf - [GENERIC] Prepare the out of band buffer
* @mtd: MTD device structure
@@ -1550,8 +1544,8 @@ int nand_read_raw (struct mtd_info *mtd, uint8_t *buf, loff_t from, size_t len,
* forces the 0xff fill before using the buffer again.
*
*/
-static u_char * nand_prepare_oobbuf (struct mtd_info *mtd, u_char *fsbuf, struct nand_oobinfo *oobsel,
- int autoplace, int numpages)
+static u_char *nand_prepare_oobbuf(struct mtd_info *mtd, u_char *fsbuf, struct nand_oobinfo *oobsel,
+ int autoplace, int numpages)
{
struct nand_chip *this = mtd->priv;
int i, len, ofs;
@@ -1562,8 +1556,7 @@ static u_char * nand_prepare_oobbuf (struct mtd_info *mtd, u_char *fsbuf, struct
/* Check, if the buffer must be filled with ff again */
if (this->oobdirty) {
- memset (this->oob_buf, 0xff,
- mtd->oobsize << (this->phys_erase_shift - this->page_shift));
+ memset(this->oob_buf, 0xff, mtd->oobsize << (this->phys_erase_shift - this->page_shift));
this->oobdirty = 0;
}
@@ -1578,7 +1571,7 @@ static u_char * nand_prepare_oobbuf (struct mtd_info *mtd, u_char *fsbuf, struct
for (i = 0, len = 0; len < mtd->oobavail; i++) {
int to = ofs + oobsel->oobfree[i][0];
int num = oobsel->oobfree[i][1];
- memcpy (&this->oob_buf[to], fsbuf, num);
+ memcpy(&this->oob_buf[to], fsbuf, num);
len += num;
fsbuf += num;
}
@@ -1600,9 +1593,9 @@ static u_char * nand_prepare_oobbuf (struct mtd_info *mtd, u_char *fsbuf, struct
* 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 u_char * buf)
+static int nand_write(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf)
{
- return (nand_write_ecc (mtd, to, len, retlen, buf, NULL, NULL));
+ return (nand_write_ecc(mtd, to, len, retlen, buf, NULL, NULL));
}
/**
@@ -1617,34 +1610,35 @@ static int nand_write (struct mtd_info *mtd, loff_t to, size_t len, size_t * ret
*
* NAND write with ECC
*/
-static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
- size_t * retlen, const u_char * buf, u_char * eccbuf, struct nand_oobinfo *oobsel)
+static int nand_write_ecc(struct mtd_info *mtd, loff_t to, size_t len,
+ size_t *retlen, const u_char *buf, u_char *eccbuf,
+ struct nand_oobinfo *oobsel)
{
int startpage, page, ret = -EIO, oob = 0, written = 0, chipnr;
int autoplace = 0, numpages, totalpages;
struct nand_chip *this = mtd->priv;
u_char *oobbuf, *bufstart;
- int ppblock = (1 << (this->phys_erase_shift - this->page_shift));
+ int ppblock = (1 << (this->phys_erase_shift - this->page_shift));
- DEBUG (MTD_DEBUG_LEVEL3, "nand_write_ecc: to = 0x%08x, len = %i\n", (unsigned int) to, (int) len);
+ DEBUG(MTD_DEBUG_LEVEL3, "nand_write_ecc: 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_ecc: 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");
+ if (NOTALIGNED(to) || NOTALIGNED(len)) {
+ printk(KERN_NOTICE "nand_write_ecc: Attempt to write not page aligned data\n");
return -EINVAL;
}
/* Grab the lock and see if the device is available */
- nand_get_device (this, mtd, FL_WRITING);
+ nand_get_device(this, mtd, FL_WRITING);
/* Calculate chipnr */
chipnr = (int)(to >> this->chip_shift);
@@ -1669,7 +1663,7 @@ static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
/* Setup variables and oob buffer */
totalpages = len >> this->page_shift;
- page = (int) (to >> this->page_shift);
+ page = (int)(to >> this->page_shift);
/* Invalidate the page cache, if we write to the cached page */
if (page <= this->pagebuf && this->pagebuf < (page + totalpages))
this->pagebuf = -1;
@@ -1678,22 +1672,22 @@ static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
page &= this->pagemask;
startpage = page;
/* Calc number of pages we can write in one go */
- numpages = min (ppblock - (startpage & (ppblock - 1)), totalpages);
- oobbuf = nand_prepare_oobbuf (mtd, eccbuf, oobsel, autoplace, numpages);
- bufstart = (u_char *)buf;
+ numpages = min(ppblock - (startpage & (ppblock - 1)), totalpages);
+ oobbuf = nand_prepare_oobbuf(mtd, eccbuf, oobsel, autoplace, numpages);
+ bufstart = (u_char *) buf;
/* Loop until all data is written */
while (written < len) {
- this->data_poi = (u_char*) &buf[written];
+ this->data_poi = (u_char *) &buf[written];
/* Write one page. If this is the last page to write
* or the last page in this block, then use the
* real pageprogram command, else select cached programming
* if supported by the chip.
*/
- ret = nand_write_page (mtd, this, page, &oobbuf[oob], oobsel, (--numpages > 0));
+ 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_ecc: write_page failed %d\n", ret);
goto out;
}
/* Next oob page */
@@ -1709,15 +1703,14 @@ static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
/* Have we hit a block boundary ? Then we have to verify and
* if verify is ok, we have to setup the oob buffer for
* the next pages.
- */
- if (!(page & (ppblock - 1))){
+ */
+ if (!(page & (ppblock - 1))) {
int ofs;
this->data_poi = bufstart;
- ret = nand_verify_pages (mtd, this, startpage,
- page - startpage,
- oobbuf, oobsel, chipnr, (eccbuf != NULL));
+ 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_ecc: verify_pages failed %d\n", ret);
goto out;
}
*retlen = written;
@@ -1726,11 +1719,10 @@ static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
if (eccbuf)
eccbuf += (page - startpage) * ofs;
totalpages -= page - startpage;
- numpages = min (totalpages, ppblock);
+ numpages = min(totalpages, ppblock);
page &= this->pagemask;
startpage = page;
- oobbuf = nand_prepare_oobbuf (mtd, eccbuf, oobsel,
- autoplace, numpages);
+ oobbuf = nand_prepare_oobbuf(mtd, eccbuf, oobsel, autoplace, numpages);
oob = 0;
/* Check, if we cross a chip boundary */
if (!page) {
@@ -1741,23 +1733,21 @@ static int nand_write_ecc (struct mtd_info *mtd, loff_t to, size_t len,
}
}
/* Verify the remaining pages */
-cmp:
+ cmp:
this->data_poi = bufstart;
- ret = nand_verify_pages (mtd, this, startpage, totalpages,
- oobbuf, oobsel, chipnr, (eccbuf != NULL));
+ ret = nand_verify_pages(mtd, this, startpage, totalpages, oobbuf, oobsel, chipnr, (eccbuf != NULL));
if (!ret)
*retlen = written;
else
- DEBUG (MTD_DEBUG_LEVEL0, "nand_write_ecc: verify_pages failed %d\n", ret);
+ DEBUG(MTD_DEBUG_LEVEL0, "nand_write_ecc: verify_pages failed %d\n", ret);
-out:
+ out:
/* Deselect and wake up anyone waiting on the device */
nand_release_device(mtd);
return ret;
}
-
/**
* nand_write_oob - [MTD Interface] NAND write out-of-band
* @mtd: MTD device structure
@@ -1768,16 +1758,16 @@ out:
*
* NAND write out-of-band
*/
-static int nand_write_oob (struct mtd_info *mtd, loff_t to, size_t len, size_t * retlen, const u_char * buf)
+static int nand_write_oob(struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf)
{
int column, page, status, ret = -EIO, chipnr;
struct nand_chip *this = mtd->priv;
- DEBUG (MTD_DEBUG_LEVEL3, "nand_write_oob: to = 0x%08x, len = %i\n", (unsigned int) to, (int) len);
+ DEBUG(MTD_DEBUG_LEVEL3, "nand_write_oob: to = 0x%08x, len = %i\n", (unsigned int)to, (int)len);
/* Shift to get page */
- page = (int) (to >> this->page_shift);
- chipnr = (int) (to >> this->chip_shift);
+ page = (int)(to >> this->page_shift);
+ chipnr = (int)(to >> this->chip_shift);
/* Mask to get column */
column = to & (mtd->oobsize - 1);
@@ -1787,12 +1777,12 @@ static int nand_write_oob (struct mtd_info *mtd, loff_t to, size_t len, size_t *
/* Do not allow write past end of page */
if ((column + len) > mtd->oobsize) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_write_oob: Attempt to write past end of page\n");
+ DEBUG(MTD_DEBUG_LEVEL0, "nand_write_oob: Attempt to write past end of page\n");
return -EINVAL;
}
/* Grab the lock and see if the device is available */
- nand_get_device (this, mtd, FL_WRITING);
+ nand_get_device(this, mtd, FL_WRITING);
/* Select the NAND device */
this->select_chip(mtd, chipnr);
@@ -1814,27 +1804,27 @@ static int nand_write_oob (struct mtd_info *mtd, loff_t to, size_t len, size_t *
if (NAND_MUST_PAD(this)) {
/* Write out desired data */
- this->cmdfunc (mtd, NAND_CMD_SEQIN, mtd->oobblock, page & this->pagemask);
+ this->cmdfunc(mtd, NAND_CMD_SEQIN, mtd->oobblock, page & this->pagemask);
/* prepad 0xff for partial programming */
this->write_buf(mtd, ffchars, column);
/* write data */
this->write_buf(mtd, buf, len);
/* postpad 0xff for partial programming */
- this->write_buf(mtd, ffchars, mtd->oobsize - (len+column));
+ this->write_buf(mtd, ffchars, mtd->oobsize - (len + column));
} else {
/* Write out desired data */
- this->cmdfunc (mtd, NAND_CMD_SEQIN, mtd->oobblock + column, page & this->pagemask);
+ this->cmdfunc(mtd, NAND_CMD_SEQIN, mtd->oobblock + column, page & this->pagemask);
/* write data */
this->write_buf(mtd, buf, len);
}
/* Send command to program the OOB data */
- this->cmdfunc (mtd, NAND_CMD_PAGEPROG, -1, -1);
+ this->cmdfunc(mtd, NAND_CMD_PAGEPROG, -1, -1);
- status = this->waitfunc (mtd, this, FL_WRITING);
+ status = this->waitfunc(mtd, this, FL_WRITING);
/* See if device thinks it succeeded */
if (status & NAND_STATUS_FAIL) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_write_oob: " "Failed write, page 0x%08x\n", page);
+ DEBUG(MTD_DEBUG_LEVEL0, "nand_write_oob: " "Failed write, page 0x%08x\n", page);
ret = -EIO;
goto out;
}
@@ -1843,23 +1833,22 @@ static int nand_write_oob (struct mtd_info *mtd, loff_t to, size_t len, size_t *
#ifdef CONFIG_MTD_NAND_VERIFY_WRITE
/* Send command to read back the data */
- this->cmdfunc (mtd, NAND_CMD_READOOB, column, page & this->pagemask);
+ this->cmdfunc(mtd, NAND_CMD_READOOB, column, page & this->pagemask);
if (this->verify_buf(mtd, buf, len)) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_write_oob: " "Failed write verify, page 0x%08x\n", page);
+ DEBUG(MTD_DEBUG_LEVEL0, "nand_write_oob: " "Failed write verify, page 0x%08x\n", page);
ret = -EIO;
goto out;
}
#endif
ret = 0;
-out:
+ out:
/* Deselect and wake up anyone waiting on the device */
nand_release_device(mtd);
return ret;
}
-
/**
* nand_writev - [MTD Interface] compabilty function for nand_writev_ecc
* @mtd: MTD device structure
@@ -1870,10 +1859,10 @@ out:
*
* NAND write with kvec. This just calls the ecc function
*/
-static int nand_writev (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count,
- loff_t to, size_t * retlen)
+static int nand_writev(struct mtd_info *mtd, const struct kvec *vecs, unsigned long count,
+ loff_t to, size_t *retlen)
{
- return (nand_writev_ecc (mtd, vecs, count, to, retlen, NULL, NULL));
+ return (nand_writev_ecc(mtd, vecs, count, to, retlen, NULL, NULL));
}
/**
@@ -1888,13 +1877,13 @@ static int nand_writev (struct mtd_info *mtd, const struct kvec *vecs, unsigned
*
* NAND write with iovec with ecc
*/
-static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count,
- loff_t to, size_t * retlen, u_char *eccbuf, struct nand_oobinfo *oobsel)
+static int nand_writev_ecc(struct mtd_info *mtd, const struct kvec *vecs, unsigned long count,
+ loff_t to, size_t *retlen, u_char *eccbuf, struct nand_oobinfo *oobsel)
{
int i, page, len, total_len, ret = -EIO, written = 0, chipnr;
int oob, numpages, autoplace = 0, startpage;
struct nand_chip *this = mtd->priv;
- int ppblock = (1 << (this->phys_erase_shift - this->page_shift));
+ int ppblock = (1 << (this->phys_erase_shift - this->page_shift));
u_char *oobbuf, *bufstart;
/* Preset written len for early exit */
@@ -1903,28 +1892,27 @@ static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsig
/* Calculate total length of data */
total_len = 0;
for (i = 0; i < count; i++)
- total_len += (int) vecs[i].iov_len;
+ total_len += (int)vecs[i].iov_len;
- DEBUG (MTD_DEBUG_LEVEL3,
- "nand_writev: to = 0x%08x, len = %i, count = %ld\n", (unsigned int) to, (unsigned int) total_len, count);
+ DEBUG(MTD_DEBUG_LEVEL3, "nand_writev: to = 0x%08x, len = %i, count = %ld\n", (unsigned int)to, (unsigned int)total_len, count);
/* Do not allow write past end of page */
if ((to + total_len) > mtd->size) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_writev: Attempted write past end of device\n");
+ DEBUG(MTD_DEBUG_LEVEL0, "nand_writev: Attempted write past end of device\n");
return -EINVAL;
}
/* reject writes, which are not page aligned */
- if (NOTALIGNED (to) || NOTALIGNED(total_len)) {
- printk (KERN_NOTICE "nand_write_ecc: Attempt to write not page aligned data\n");
+ if (NOTALIGNED(to) || NOTALIGNED(total_len)) {
+ printk(KERN_NOTICE "nand_write_ecc: Attempt to write not page aligned data\n");
return -EINVAL;
}
/* Grab the lock and see if the device is available */
- nand_get_device (this, mtd, FL_WRITING);
+ nand_get_device(this, mtd, FL_WRITING);
/* Get the current chip-nr */
- chipnr = (int) (to >> this->chip_shift);
+ chipnr = (int)(to >> this->chip_shift);
/* Select the NAND device */
this->select_chip(mtd, chipnr);
@@ -1945,7 +1933,7 @@ static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsig
autoplace = 1;
/* Setup start page */
- page = (int) (to >> this->page_shift);
+ page = (int)(to >> this->page_shift);
/* Invalidate the page cache, if we write to the cached page */
if (page <= this->pagebuf && this->pagebuf < ((to + total_len) >> this->page_shift))
this->pagebuf = -1;
@@ -1963,9 +1951,9 @@ static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsig
* out of this iov in one go */
numpages = (vecs->iov_len - len) >> this->page_shift;
/* Do not cross block boundaries */
- numpages = min (ppblock - (startpage & (ppblock - 1)), numpages);
- oobbuf = nand_prepare_oobbuf (mtd, NULL, oobsel, autoplace, numpages);
- bufstart = (u_char *)vecs->iov_base;
+ numpages = min(ppblock - (startpage & (ppblock - 1)), numpages);
+ oobbuf = nand_prepare_oobbuf(mtd, NULL, oobsel, autoplace, numpages);
+ bufstart = (u_char *) vecs->iov_base;
bufstart += len;
this->data_poi = bufstart;
oob = 0;
@@ -1974,8 +1962,8 @@ static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsig
* then use the real pageprogram command, else select
* cached programming if supported by the chip.
*/
- ret = nand_write_page (mtd, this, page & this->pagemask,
- &oobbuf[oob], oobsel, i != numpages);
+ ret = nand_write_page(mtd, this, page & this->pagemask,
+ &oobbuf[oob], oobsel, i != numpages);
if (ret)
goto out;
this->data_poi += mtd->oobblock;
@@ -1984,7 +1972,7 @@ static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsig
page++;
}
/* Check, if we have to switch to the next tuple */
- if (len >= (int) vecs->iov_len) {
+ if (len >= (int)vecs->iov_len) {
vecs++;
len = 0;
count--;
@@ -1998,7 +1986,7 @@ static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsig
if (vecs->iov_base != NULL && vecs->iov_len)
this->data_buf[cnt++] = ((u_char *) vecs->iov_base)[len++];
/* Check, if we have to switch to the next tuple */
- if (len >= (int) vecs->iov_len) {
+ if (len >= (int)vecs->iov_len) {
vecs++;
len = 0;
count--;
@@ -2008,16 +1996,15 @@ static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsig
this->data_poi = this->data_buf;
bufstart = this->data_poi;
numpages = 1;
- oobbuf = nand_prepare_oobbuf (mtd, NULL, oobsel, autoplace, numpages);
- ret = nand_write_page (mtd, this, page & this->pagemask,
- oobbuf, oobsel, 0);
+ oobbuf = nand_prepare_oobbuf(mtd, NULL, oobsel, autoplace, numpages);
+ ret = nand_write_page(mtd, this, page & this->pagemask, oobbuf, oobsel, 0);
if (ret)
goto out;
page++;
}
this->data_poi = bufstart;
- ret = nand_verify_pages (mtd, this, startpage, numpages, oobbuf, oobsel, chipnr, 0);
+ ret = nand_verify_pages(mtd, this, startpage, numpages, oobbuf, oobsel, chipnr, 0);
if (ret)
goto out;
@@ -2035,7 +2022,7 @@ static int nand_writev_ecc (struct mtd_info *mtd, const struct kvec *vecs, unsig
}
}
ret = 0;
-out:
+ out:
/* Deselect and wake up anyone waiting on the device */
nand_release_device(mtd);
@@ -2050,12 +2037,12 @@ out:
*
* Standard erase command for NAND chips
*/
-static void single_erase_cmd (struct mtd_info *mtd, int page)
+static void single_erase_cmd(struct mtd_info *mtd, int page)
{
struct nand_chip *this = mtd->priv;
/* Send commands to erase a block */
- this->cmdfunc (mtd, NAND_CMD_ERASE1, -1, page);
- this->cmdfunc (mtd, NAND_CMD_ERASE2, -1, -1);
+ this->cmdfunc(mtd, NAND_CMD_ERASE1, -1, page);
+ this->cmdfunc(mtd, NAND_CMD_ERASE2, -1, -1);
}
/**
@@ -2066,15 +2053,15 @@ static void single_erase_cmd (struct mtd_info *mtd, int page)
* AND multi block erase command function
* Erase 4 consecutive blocks
*/
-static void multi_erase_cmd (struct mtd_info *mtd, int page)
+static void multi_erase_cmd(struct mtd_info *mtd, int page)
{
struct nand_chip *this = mtd->priv;
/* Send commands to erase a block */
- this->cmdfunc (mtd, NAND_CMD_ERASE1, -1, page++);
- this->cmdfunc (mtd, NAND_CMD_ERASE1, -1, page++);
- this->cmdfunc (mtd, NAND_CMD_ERASE1, -1, page++);
- this->cmdfunc (mtd, NAND_CMD_ERASE1, -1, page);
- this->cmdfunc (mtd, NAND_CMD_ERASE2, -1, -1);
+ this->cmdfunc(mtd, NAND_CMD_ERASE1, -1, page++);
+ this->cmdfunc(mtd, NAND_CMD_ERASE1, -1, page++);
+ this->cmdfunc(mtd, NAND_CMD_ERASE1, -1, page++);
+ this->cmdfunc(mtd, NAND_CMD_ERASE1, -1, page);
+ this->cmdfunc(mtd, NAND_CMD_ERASE2, -1, -1);
}
/**
@@ -2084,9 +2071,9 @@ static void multi_erase_cmd (struct mtd_info *mtd, int page)
*
* Erase one ore more blocks
*/
-static int nand_erase (struct mtd_info *mtd, struct erase_info *instr)
+static int nand_erase(struct mtd_info *mtd, struct erase_info *instr)
{
- return nand_erase_nand (mtd, instr, 0);
+ return nand_erase_nand(mtd, instr, 0);
}
#define BBT_PAGE_MASK 0xffffff3f
@@ -2098,7 +2085,7 @@ static int nand_erase (struct mtd_info *mtd, struct erase_info *instr)
*
* Erase one ore more blocks
*/
-int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbbt)
+int nand_erase_nand(struct mtd_info *mtd, struct erase_info *instr, int allowbbt)
{
int page, len, status, pages_per_block, ret, chipnr;
struct nand_chip *this = mtd->priv;
@@ -2107,35 +2094,34 @@ int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbb
/* It is used to see if the current page is in the same */
/* 256 block group and the same bank as the bbt. */
- DEBUG (MTD_DEBUG_LEVEL3,
- "nand_erase: start = 0x%08x, len = %i\n", (unsigned int) instr->addr, (unsigned int) instr->len);
+ DEBUG(MTD_DEBUG_LEVEL3, "nand_erase: start = 0x%08x, len = %i\n", (unsigned int)instr->addr, (unsigned int)instr->len);
/* Start address must align on block boundary */
if (instr->addr & ((1 << this->phys_erase_shift) - 1)) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_erase: Unaligned address\n");
+ DEBUG(MTD_DEBUG_LEVEL0, "nand_erase: Unaligned address\n");
return -EINVAL;
}
/* Length must align on block boundary */
if (instr->len & ((1 << this->phys_erase_shift) - 1)) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_erase: Length not block aligned\n");
+ DEBUG(MTD_DEBUG_LEVEL0, "nand_erase: Length not block aligned\n");
return -EINVAL;
}
/* Do not allow erase past end of device */
if ((instr->len + instr->addr) > mtd->size) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_erase: Erase past end of device\n");
+ DEBUG(MTD_DEBUG_LEVEL0, "nand_erase: Erase past end of device\n");
return -EINVAL;
}
instr->fail_addr = 0xffffffff;
/* Grab the lock and see if the device is available */
- nand_get_device (this, mtd, FL_ERASING);
+ nand_get_device(this, mtd, FL_ERASING);
/* Shift to get first page */
- page = (int) (instr->addr >> this->page_shift);
- chipnr = (int) (instr->addr >> this->chip_shift);
+ page = (int)(instr->addr >> this->page_shift);
+ chipnr = (int)(instr->addr >> this->chip_shift);
/* Calculate pages in each block */
pages_per_block = 1 << (this->phys_erase_shift - this->page_shift);
@@ -2146,7 +2132,7 @@ int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbb
/* Check the WP bit */
/* Check, if it is write protected */
if (nand_check_wp(mtd)) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_erase: Device is write protected!!!\n");
+ DEBUG(MTD_DEBUG_LEVEL0, "nand_erase: Device is write protected!!!\n");
instr->state = MTD_ERASE_FAILED;
goto erase_exit;
}
@@ -2166,7 +2152,7 @@ int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbb
while (len) {
/* Check if we have a bad block, we do not erase bad blocks ! */
if (nand_block_checkbad(mtd, ((loff_t) page) << this->page_shift, 0, allowbbt)) {
- printk (KERN_WARNING "nand_erase: attempt to erase a bad block at page 0x%08x\n", page);
+ printk(KERN_WARNING "nand_erase: attempt to erase a bad block at page 0x%08x\n", page);
instr->state = MTD_ERASE_FAILED;
goto erase_exit;
}
@@ -2176,9 +2162,9 @@ int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbb
if (page <= this->pagebuf && this->pagebuf < (page + pages_per_block))
this->pagebuf = -1;
- this->erase_cmd (mtd, page & this->pagemask);
+ this->erase_cmd(mtd, page & this->pagemask);
- status = this->waitfunc (mtd, this, FL_ERASING);
+ status = this->waitfunc(mtd, this, FL_ERASING);
/* See if operation failed and additional status checks are available */
if ((status & NAND_STATUS_FAIL) && (this->errstat)) {
@@ -2187,7 +2173,7 @@ int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbb
/* See if block erase succeeded */
if (status & NAND_STATUS_FAIL) {
- DEBUG (MTD_DEBUG_LEVEL0, "nand_erase: " "Failed erase, page 0x%08x\n", page);
+ DEBUG(MTD_DEBUG_LEVEL0, "nand_erase: " "Failed erase, page 0x%08x\n", page);
instr->state = MTD_ERASE_FAILED;
instr->fail_addr = (page << this->page_shift);
goto erase_exit;
@@ -2221,7 +2207,7 @@ int nand_erase_nand (struct mtd_info *mtd, struct erase_info *instr, int allowbb
}
instr->state = MTD_ERASE_DONE;
-erase_exit:
+ erase_exit:
ret = instr->state == MTD_ERASE_DONE ? 0 : -EIO;
/* Do call back function */
@@ -2236,9 +2222,9 @@ erase_exit:
for (chipnr = 0; chipnr < this->numchips; chipnr++) {
if (rewrite_bbt[chipnr]) {
/* update the BBT for chip */
- DEBUG (MTD_DEBUG_LEVEL0, "nand_erase_nand: nand_update_bbt (%d:0x%0x 0x%0x)\n",
- chipnr, rewrite_bbt[chipnr], this->bbt_td->pages[chipnr]);
- nand_update_bbt (mtd, rewrite_bbt[chipnr]);
+ DEBUG(MTD_DEBUG_LEVEL0, "nand_erase_nand: nand_update_bbt (%d:0x%0x 0x%0x)\n",
+ chipnr, rewrite_bbt[chipnr], this->bbt_td->pages[chipnr]);
+ nand_update_bbt(mtd, rewrite_bbt[chipnr]);
}
}
}
@@ -2253,31 +2239,30 @@ erase_exit:
*
* Sync is actually a wait for chip ready function
*/
-static void nand_sync (struct mtd_info *mtd)
+static void nand_sync(struct mtd_info *mtd)
{
struct nand_chip *this = mtd->priv;
- DEBUG (MTD_DEBUG_LEVEL3, "nand_sync: called\n");
+ DEBUG(MTD_DEBUG_LEVEL3, "nand_sync: called\n");
/* Grab the lock and see if the device is available */
- nand_get_device (this, mtd, FL_SYNCING);
+ nand_get_device(this, mtd, FL_SYNCING);
/* Release it and go back */
- nand_release_device (mtd);
+ nand_release_device(mtd);
}
-
/**
* nand_block_isbad - [MTD Interface] Check whether the block at the given offset is bad
* @mtd: MTD device structure
* @ofs: offset relative to mtd start
*/
-static int nand_block_isbad (struct mtd_info *mtd, loff_t ofs)
+static int nand_block_isbad(struct mtd_info *mtd, loff_t ofs)
{
/* Check for invalid offset */
if (ofs > mtd->size)
return -EINVAL;
- return nand_block_checkbad (mtd, ofs, 1, 0);
+ return nand_block_checkbad(mtd, ofs, 1, 0);
}
/**
@@ -2285,17 +2270,17 @@ static int nand_block_isbad (struct mtd_info *mtd, loff_t ofs)
* @mtd: MTD device structure
* @ofs: offset relative to mtd start
*/
-static int nand_block_markbad (struct mtd_info *mtd, loff_t ofs)
+static int nand_block_markbad(struct mtd_info *mtd, loff_t ofs)
{
struct nand_chip *this = mtd->priv;
int ret;
- if ((ret = nand_block_isbad(mtd, ofs))) {
- /* If it was bad already, return success and do nothing. */
+ if ((ret = nand_block_isbad(mtd, ofs))) {
+ /* If it was bad already, return success and do nothing. */
if (ret > 0)
return 0;
- return ret;
- }
+ return ret;
+ }
return this->block_markbad(mtd, ofs);
}
@@ -2308,7 +2293,7 @@ static int nand_suspend(struct mtd_info *mtd)
{
struct nand_chip *this = mtd->priv;
- return nand_get_device (this, mtd, FL_PM_SUSPENDED);
+ return nand_get_device(this, mtd, FL_PM_SUSPENDED);
}
/**
@@ -2322,12 +2307,10 @@ static void nand_resume(struct mtd_info *mtd)
if (this->state == FL_PM_SUSPENDED)
nand_release_device(mtd);
else
- printk(KERN_ERR "resume() called for the chip which is not "
- "in suspended state\n");
+ printk(KERN_ERR "resume() called for the chip which is not in suspended state\n");
}
-
/**
* nand_scan - [NAND Interface] Scan for the NAND device
* @mtd: MTD device structure
@@ -2340,12 +2323,12 @@ static void nand_resume(struct mtd_info *mtd)
* they are not provided by the board driver
*
*/
-int nand_scan (struct mtd_info *mtd, int maxchips)
+int nand_scan(struct mtd_info *mtd, int maxchips)
{
int i, nand_maf_id, nand_dev_id, busw, maf_id;
struct nand_chip *this = mtd->priv;
- /* Get buswidth to select the correct functions*/
+ /* Get buswidth to select the correct functions */
busw = this->options & NAND_BUSWIDTH_16;
/* check for proper chip_delay setup, set 20us if not */
@@ -2387,7 +2370,7 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
this->select_chip(mtd, 0);
/* Send the command for reading device ID */
- this->cmdfunc (mtd, NAND_CMD_READID, 0x00, -1);
+ this->cmdfunc(mtd, NAND_CMD_READID, 0x00, -1);
/* Read manufacturer and device IDs */
nand_maf_id = this->read_byte(mtd);
@@ -2399,7 +2382,8 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
if (nand_dev_id != nand_flash_ids[i].id)
continue;
- if (!mtd->name) mtd->name = nand_flash_ids[i].name;
+ if (!mtd->name)
+ mtd->name = nand_flash_ids[i].name;
this->chipsize = nand_flash_ids[i].chipsize << 20;
/* New devices have all the information in additional id bytes */
@@ -2416,7 +2400,7 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
mtd->oobsize = (8 << (extid & 0x01)) * (mtd->oobblock >> 9);
extid >>= 2;
/* Calc blocksize. Blocksize is multiples of 64KiB */
- mtd->erasesize = (64 * 1024) << (extid & 0x03);
+ mtd->erasesize = (64 * 1024) << (extid & 0x03);
extid >>= 2;
/* Get buswidth information */
busw = (extid & 0x01) ? NAND_BUSWIDTH_16 : 0;
@@ -2439,13 +2423,12 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
/* Check, if buswidth is correct. Hardware drivers should set
* this correct ! */
if (busw != (this->options & NAND_BUSWIDTH_16)) {
- printk (KERN_INFO "NAND device: Manufacturer ID:"
- " 0x%02x, Chip ID: 0x%02x (%s %s)\n", nand_maf_id, nand_dev_id,
- nand_manuf_ids[maf_id].name , mtd->name);
- printk (KERN_WARNING
- "NAND bus width %d instead %d bit\n",
- (this->options & NAND_BUSWIDTH_16) ? 16 : 8,
- busw ? 16 : 8);
+ printk(KERN_INFO "NAND device: Manufacturer ID:"
+ " 0x%02x, Chip ID: 0x%02x (%s %s)\n", nand_maf_id, nand_dev_id,
+ nand_manuf_ids[maf_id].name, mtd->name);
+ printk(KERN_WARNING
+ "NAND bus width %d instead %d bit\n",
+ (this->options & NAND_BUSWIDTH_16) ? 16 : 8, busw ? 16 : 8);
this->select_chip(mtd, -1);
return 1;
}
@@ -2456,13 +2439,12 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
this->chip_shift = ffs(this->chipsize) - 1;
/* Set the bad block position */
- this->badblockpos = mtd->oobblock > 512 ?
- NAND_LARGE_BADBLOCK_POS : NAND_SMALL_BADBLOCK_POS;
+ this->badblockpos = mtd->oobblock > 512 ? NAND_LARGE_BADBLOCK_POS : NAND_SMALL_BADBLOCK_POS;
/* Get chip options, preserve non chip based options */
this->options &= ~NAND_CHIPOPTIONS_MSK;
this->options |= nand_flash_ids[i].options & NAND_CHIPOPTIONS_MSK;
- /* Set this as a default. Board drivers can override it, if neccecary */
+ /* Set this as a default. Board drivers can override it, if necessary */
this->options |= NAND_NO_AUTOINCR;
/* Check if this is a not a samsung device. Do not clear the options
* for chips which are not having an extended id.
@@ -2480,23 +2462,23 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
if (mtd->oobblock > 512 && this->cmdfunc == nand_command)
this->cmdfunc = nand_command_lp;
- printk (KERN_INFO "NAND device: Manufacturer ID:"
- " 0x%02x, Chip ID: 0x%02x (%s %s)\n", nand_maf_id, nand_dev_id,
- nand_manuf_ids[maf_id].name , nand_flash_ids[i].name);
+ printk(KERN_INFO "NAND device: Manufacturer ID:"
+ " 0x%02x, Chip ID: 0x%02x (%s %s)\n", nand_maf_id, nand_dev_id,
+ nand_manuf_ids[maf_id].name, nand_flash_ids[i].name);
break;
}
if (!nand_flash_ids[i].name) {
- printk (KERN_WARNING "No NAND device found!!!\n");
+ printk(KERN_WARNING "No NAND device found!!!\n");
this->select_chip(mtd, -1);
return 1;
}
- for (i=1; i < maxchips; i++) {
+ for (i = 1; i < maxchips; i++) {
this->select_chip(mtd, i);
/* Send the command for reading device ID */
- this->cmdfunc (mtd, NAND_CMD_READID, 0x00, -1);
+ this->cmdfunc(mtd, NAND_CMD_READID, 0x00, -1);
/* Read manufacturer and device IDs */
if (nand_maf_id != this->read_byte(mtd) ||
@@ -2506,13 +2488,13 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
if (i > 1)
printk(KERN_INFO "%d NAND chips detected\n", i);
- /* Allocate buffers, if neccecary */
+ /* Allocate buffers, if necessary */
if (!this->oob_buf) {
size_t len;
len = mtd->oobsize << (this->phys_erase_shift - this->page_shift);
- this->oob_buf = kmalloc (len, GFP_KERNEL);
+ this->oob_buf = kmalloc(len, GFP_KERNEL);
if (!this->oob_buf) {
- printk (KERN_ERR "nand_scan(): Cannot allocate oob_buf\n");
+ printk(KERN_ERR "nand_scan(): Cannot allocate oob_buf\n");
return -ENOMEM;
}
this->options |= NAND_OOBBUF_ALLOC;
@@ -2521,11 +2503,11 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
if (!this->data_buf) {
size_t len;
len = mtd->oobblock + mtd->oobsize;
- this->data_buf = kmalloc (len, GFP_KERNEL);
+ this->data_buf = kmalloc(len, GFP_KERNEL);
if (!this->data_buf) {
if (this->options & NAND_OOBBUF_ALLOC)
- kfree (this->oob_buf);
- printk (KERN_ERR "nand_scan(): Cannot allocate data_buf\n");
+ kfree(this->oob_buf);
+ printk(KERN_ERR "nand_scan(): Cannot allocate data_buf\n");
return -ENOMEM;
}
this->options |= NAND_DATABUF_ALLOC;
@@ -2555,8 +2537,7 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
this->autooob = &nand_oob_64;
break;
default:
- printk (KERN_WARNING "No oob scheme defined for oobsize %d\n",
- mtd->oobsize);
+ printk(KERN_WARNING "No oob scheme defined for oobsize %d\n", mtd->oobsize);
BUG();
}
}
@@ -2571,7 +2552,7 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
* check ECC mode, default to software
* if 3byte/512byte hardware ECC is selected and we have 256 byte pagesize
* fallback to software ECC
- */
+ */
this->eccsize = 256; /* set default eccsize */
this->eccbytes = 3;
@@ -2591,19 +2572,19 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
case NAND_ECC_HW6_512:
case NAND_ECC_HW8_512:
if (mtd->oobblock == 256) {
- printk (KERN_WARNING "512 byte HW ECC not possible on 256 Byte pagesize, fallback to SW ECC \n");
+ printk(KERN_WARNING "512 byte HW ECC not possible on 256 Byte pagesize, fallback to SW ECC \n");
this->eccmode = NAND_ECC_SOFT;
this->calculate_ecc = nand_calculate_ecc;
this->correct_data = nand_correct_data;
} else
- this->eccsize = 512; /* set eccsize to 512 */
+ this->eccsize = 512; /* set eccsize to 512 */
break;
case NAND_ECC_HW3_256:
break;
case NAND_ECC_NONE:
- printk (KERN_WARNING "NAND_ECC_NONE selected by board driver. This is not recommended !!\n");
+ printk(KERN_WARNING "NAND_ECC_NONE selected by board driver. This is not recommended !!\n");
this->eccmode = NAND_ECC_NONE;
break;
@@ -2613,13 +2594,13 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
break;
default:
- printk (KERN_WARNING "Invalid NAND_ECC_MODE %d\n", this->eccmode);
+ printk(KERN_WARNING "Invalid NAND_ECC_MODE %d\n", this->eccmode);
BUG();
}
/* Check hardware ecc function availability and adjust number of ecc bytes per
* calculation step
- */
+ */
switch (this->eccmode) {
case NAND_ECC_HW12_2048:
this->eccbytes += 4;
@@ -2631,7 +2612,7 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
case NAND_ECC_HW3_256:
if (this->calculate_ecc && this->correct_data && this->enable_hwecc)
break;
- printk (KERN_WARNING "No ECC functions supplied, Hardware ECC not possible\n");
+ printk(KERN_WARNING "No ECC functions supplied, Hardware ECC not possible\n");
BUG();
}
@@ -2659,8 +2640,8 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
/* Initialize state, waitqueue and spinlock */
this->state = FL_READY;
- init_waitqueue_head (&this->wq);
- spin_lock_init (&this->chip_lock);
+ init_waitqueue_head(&this->wq);
+ spin_lock_init(&this->chip_lock);
/* De-select the device */
this->select_chip(mtd, -1);
@@ -2702,37 +2683,36 @@ int nand_scan (struct mtd_info *mtd, int maxchips)
return 0;
/* Build bad block table */
- return this->scan_bbt (mtd);
+ return this->scan_bbt(mtd);
}
/**
* nand_release - [NAND Interface] Free resources held by the NAND device
* @mtd: MTD device structure
*/
-void nand_release (struct mtd_info *mtd)
+void nand_release(struct mtd_info *mtd)
{
struct nand_chip *this = mtd->priv;
#ifdef CONFIG_MTD_PARTITIONS
/* Deregister partitions */
- del_mtd_partitions (mtd);
+ del_mtd_partitions(mtd);
#endif
/* Deregister the device */
- del_mtd_device (mtd);
+ del_mtd_device(mtd);
/* Free bad block table memory */
- kfree (this->bbt);
+ kfree(this->bbt);
/* Buffer allocated by nand_scan ? */
if (this->options & NAND_OOBBUF_ALLOC)
- kfree (this->oob_buf);
+ kfree(this->oob_buf);
/* Buffer allocated by nand_scan ? */
if (this->options & NAND_DATABUF_ALLOC)
- kfree (this->data_buf);
+ kfree(this->data_buf);
}
-EXPORT_SYMBOL_GPL (nand_scan);
-EXPORT_SYMBOL_GPL (nand_release);
-
+EXPORT_SYMBOL_GPL(nand_scan);
+EXPORT_SYMBOL_GPL(nand_release);
static int __init nand_base_init(void)
{
@@ -2748,6 +2728,6 @@ static void __exit nand_base_exit(void)
module_init(nand_base_init);
module_exit(nand_base_exit);
-MODULE_LICENSE ("GPL");
-MODULE_AUTHOR ("Steven J. Hill <sjhill@realitydiluted.com>, Thomas Gleixner <tglx@linutronix.de>");
-MODULE_DESCRIPTION ("Generic NAND flash driver code");
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Steven J. Hill <sjhill@realitydiluted.com>, Thomas Gleixner <tglx@linutronix.de>");
+MODULE_DESCRIPTION("Generic NAND flash driver code");
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-26 03:34:23 +0000