No functional change intended.
Cc: [email protected]
Cc: David Woodhouse <[email protected]>
Cc: Brian Norris <[email protected]>
Cc: Boris Brezillon <[email protected]>
Cc: Marek Vasut <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Cyrille Pitchen <[email protected]>
Cc: [email protected]
Acked-by: Marek Vasut <[email protected]>
Signed-off-by: Andrey Smirnov <[email protected]>
---
No changes since [v3], [v4]
Changes since [v2]:
- Re-worded commit message
- Collected Acked-by from Marek
Not present in v1
[v2]: http://lkml.kernel.org/r/[email protected]
[v3]: http://lkml.kernel.org/r/[email protected]
[v4]: http://lkml.kernel.org/r/[email protected]
drivers/mtd/devices/mtd_dataflash.c | 40 ++++++++++++++++++-------------------
1 file changed, 20 insertions(+), 20 deletions(-)
diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index f9e9bd1..a566231 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -84,7 +84,7 @@
struct dataflash {
- uint8_t command[4];
+ u8 command[4];
char name[24];
unsigned short page_offset; /* offset in flash address */
@@ -153,8 +153,8 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr)
struct spi_transfer x = { };
struct spi_message msg;
unsigned blocksize = priv->page_size << 3;
- uint8_t *command;
- uint32_t rem;
+ u8 *command;
+ u32 rem;
pr_debug("%s: erase addr=0x%llx len 0x%llx\n",
dev_name(&spi->dev), (long long)instr->addr,
@@ -187,8 +187,8 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr)
pageaddr = pageaddr << priv->page_offset;
command[0] = do_block ? OP_ERASE_BLOCK : OP_ERASE_PAGE;
- command[1] = (uint8_t)(pageaddr >> 16);
- command[2] = (uint8_t)(pageaddr >> 8);
+ command[1] = (u8)(pageaddr >> 16);
+ command[2] = (u8)(pageaddr >> 8);
command[3] = 0;
pr_debug("ERASE %s: (%x) %x %x %x [%i]\n",
@@ -239,7 +239,7 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len,
struct spi_transfer x[2] = { };
struct spi_message msg;
unsigned int addr;
- uint8_t *command;
+ u8 *command;
int status;
pr_debug("%s: read 0x%x..0x%x\n", dev_name(&priv->spi->dev),
@@ -271,9 +271,9 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len,
* fewer "don't care" bytes. Both buffers stay unchanged.
*/
command[0] = OP_READ_CONTINUOUS;
- command[1] = (uint8_t)(addr >> 16);
- command[2] = (uint8_t)(addr >> 8);
- command[3] = (uint8_t)(addr >> 0);
+ command[1] = (u8)(addr >> 16);
+ command[2] = (u8)(addr >> 8);
+ command[3] = (u8)(addr >> 0);
/* plus 4 "don't care" bytes */
status = spi_sync(priv->spi, &msg);
@@ -308,7 +308,7 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
size_t remaining = len;
u_char *writebuf = (u_char *) buf;
int status = -EINVAL;
- uint8_t *command;
+ u8 *command;
pr_debug("%s: write 0x%x..0x%x\n",
dev_name(&spi->dev), (unsigned)to, (unsigned)(to + len));
@@ -455,11 +455,11 @@ static int dataflash_get_otp_info(struct mtd_info *mtd, size_t len,
}
static ssize_t otp_read(struct spi_device *spi, unsigned base,
- uint8_t *buf, loff_t off, size_t len)
+ u8 *buf, loff_t off, size_t len)
{
struct spi_message m;
size_t l;
- uint8_t *scratch;
+ u8 *scratch;
struct spi_transfer t;
int status;
@@ -538,7 +538,7 @@ static int dataflash_write_user_otp(struct mtd_info *mtd,
{
struct spi_message m;
const size_t l = 4 + 64;
- uint8_t *scratch;
+ u8 *scratch;
struct spi_transfer t;
struct dataflash *priv = mtd->priv;
int status;
@@ -689,14 +689,14 @@ struct flash_info {
/* JEDEC id has a high byte of zero plus three data bytes:
* the manufacturer id, then a two byte device id.
*/
- uint32_t jedec_id;
+ u32 jedec_id;
/* The size listed here is what works with OP_ERASE_PAGE. */
unsigned nr_pages;
- uint16_t pagesize;
- uint16_t pageoffset;
+ u16 pagesize;
+ u16 pageoffset;
- uint16_t flags;
+ u16 flags;
#define SUP_POW2PS 0x0002 /* supports 2^N byte pages */
#define IS_POW2PS 0x0001 /* uses 2^N byte pages */
};
@@ -739,9 +739,9 @@ static struct flash_info dataflash_data[] = {
static struct flash_info *jedec_probe(struct spi_device *spi)
{
int tmp;
- uint8_t code = OP_READ_ID;
- uint8_t id[3];
- uint32_t jedec;
+ u8 code = OP_READ_ID;
+ u8 id[3];
+ u32 jedec;
struct flash_info *info;
int status;
--
2.9.3
"For" loop in jedec_probe can be simplified to not need counter
'i'. Convert the code and get rid of the variable.
Cc: [email protected]
Cc: David Woodhouse <[email protected]>
Cc: Brian Norris <[email protected]>
Cc: Boris Brezillon <[email protected]>
Cc: Marek Vasut <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Cyrille Pitchen <[email protected]>
Cc: [email protected]
Reviewed-by: Marek Vasut <[email protected]>
Signed-off-by: Andrey Smirnov <[email protected]>
---
No changes since [v4]
Changes since [v3]
- Collected Reviewed-by from Marek
Not present in v2, v1
[v3] http://lkml.kernel.org/r/[email protected]
[v4] http://lkml.kernel.org/r/[email protected]
drivers/mtd/devices/mtd_dataflash.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index ccd1e02..2d3e403 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -736,7 +736,7 @@ static struct flash_info dataflash_data[] = {
static struct flash_info *jedec_probe(struct spi_device *spi)
{
- int ret, i;
+ int ret;
u8 code = OP_READ_ID;
u8 id[3];
u32 jedec;
@@ -767,9 +767,9 @@ static struct flash_info *jedec_probe(struct spi_device *spi)
jedec = jedec << 8;
jedec |= id[2];
- for (i = 0, info = dataflash_data;
- i < ARRAY_SIZE(dataflash_data);
- i++, info++) {
+ for (info = dataflash_data;
+ info < dataflash_data + ARRAY_SIZE(dataflash_data);
+ info++) {
if (info->jedec_id == jedec) {
dev_dbg(&spi->dev, "OTP, sector protect%s\n",
(info->flags & SUP_POW2PS) ?
--
2.9.3
In anticipation of supporting chips that need it, extend the size of
struct flash_info's 'jedec_id' field to make room 2 byte of extended
device information as well as add code to fetch this data during
jedec_probe().
Cc: [email protected]
Cc: David Woodhouse <[email protected]>
Cc: Brian Norris <[email protected]>
Cc: Boris Brezillon <[email protected]>
Cc: Marek Vasut <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Cyrille Pitchen <[email protected]>
Cc: [email protected]
Acked-by: Marek Vasut <[email protected]>
Signed-off-by: Andrey Smirnov <[email protected]>
---
Changes since [v4]:
- Corrected value of SUP_EXTID from BIT(3) to 0x0004
- Collected Acked-by from Marek
Changes since [v3]:
- Convert patch to use SUP_EXTID flag and avoid patching
dataflash_data table
Changes since [v2]:
- Make 'id' have same size as 'jedec'
- Get rid of eid_mask variable in favour of using GENMASK
in-place
Changes since [v1]:
- Formatting
[v1] http://lkml.kernel.org/r/[email protected]
[v2] http://lkml.kernel.org/r/[email protected]
[v3] http://lkml.kernel.org/r/[email protected]
[v4] http://lkml.kernel.org/r/[email protected]
drivers/mtd/devices/mtd_dataflash.c | 88 ++++++++++++++++++++++++-------------
1 file changed, 57 insertions(+), 31 deletions(-)
diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index 2d3e403..3f1a0fb 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -84,6 +84,9 @@
#define CFI_MFR_ATMEL 0x1F
+#define DATAFLASH_SHIFT_EXTID 24
+#define DATAFLASH_SHIFT_ID 40
+
struct dataflash {
u8 command[4];
char name[24];
@@ -687,7 +690,7 @@ struct flash_info {
/* JEDEC id has a high byte of zero plus three data bytes:
* the manufacturer id, then a two byte device id.
*/
- u32 jedec_id;
+ u64 jedec_id;
/* The size listed here is what works with OP_ERASE_PAGE. */
unsigned nr_pages;
@@ -695,6 +698,7 @@ struct flash_info {
u16 pageoffset;
u16 flags;
+#define SUP_EXTID 0x0004 /* supports extended ID data */
#define SUP_POW2PS 0x0002 /* supports 2^N byte pages */
#define IS_POW2PS 0x0001 /* uses 2^N byte pages */
};
@@ -734,42 +738,18 @@ static struct flash_info dataflash_data[] = {
{ "at45db642d", 0x1f2800, 8192, 1024, 10, SUP_POW2PS | IS_POW2PS},
};
-static struct flash_info *jedec_probe(struct spi_device *spi)
+static struct flash_info *jedec_lookup(struct spi_device *spi,
+ u64 jedec, bool use_extid)
{
- int ret;
- u8 code = OP_READ_ID;
- u8 id[3];
- u32 jedec;
struct flash_info *info;
int status;
- /*
- * JEDEC also defines an optional "extended device information"
- * string for after vendor-specific data, after the three bytes
- * we use here. Supporting some chips might require using it.
- *
- * If the vendor ID isn't Atmel's (0x1f), assume this call failed.
- * That's not an error; only rev C and newer chips handle it, and
- * only Atmel sells these chips.
- */
- ret = spi_write_then_read(spi, &code, 1, id, 3);
- if (ret < 0) {
- dev_dbg(&spi->dev, "error %d reading JEDEC ID\n", ret);
- return ERR_PTR(ret);
- }
-
- if (id[0] != CFI_MFR_ATMEL)
- return NULL;
-
- jedec = id[0];
- jedec = jedec << 8;
- jedec |= id[1];
- jedec = jedec << 8;
- jedec |= id[2];
-
for (info = dataflash_data;
info < dataflash_data + ARRAY_SIZE(dataflash_data);
info++) {
+ if (use_extid && !(info->flags & SUP_EXTID))
+ continue;
+
if (info->jedec_id == jedec) {
dev_dbg(&spi->dev, "OTP, sector protect%s\n",
(info->flags & SUP_POW2PS) ?
@@ -793,12 +773,58 @@ static struct flash_info *jedec_probe(struct spi_device *spi)
}
}
+ return ERR_PTR(-ENODEV);
+}
+
+static struct flash_info *jedec_probe(struct spi_device *spi)
+{
+ int ret;
+ u8 code = OP_READ_ID;
+ u64 jedec;
+ u8 id[sizeof(jedec)] = {0};
+ const unsigned int id_size = 5;
+ struct flash_info *info;
+
+ /*
+ * JEDEC also defines an optional "extended device information"
+ * string for after vendor-specific data, after the three bytes
+ * we use here. Supporting some chips might require using it.
+ *
+ * If the vendor ID isn't Atmel's (0x1f), assume this call failed.
+ * That's not an error; only rev C and newer chips handle it, and
+ * only Atmel sells these chips.
+ */
+ ret = spi_write_then_read(spi, &code, 1, id, id_size);
+ if (ret < 0) {
+ dev_dbg(&spi->dev, "error %d reading JEDEC ID\n", ret);
+ return ERR_PTR(ret);
+ }
+
+ if (id[0] != CFI_MFR_ATMEL)
+ return NULL;
+
+ jedec = be64_to_cpup((__be64 *)id);
+
+ /*
+ * First, try to match device using extended device
+ * information
+ */
+ info = jedec_lookup(spi, jedec >> DATAFLASH_SHIFT_EXTID, true);
+ if (!IS_ERR(info))
+ return info;
+ /*
+ * If that fails, make another pass using regular ID
+ * information
+ */
+ info = jedec_lookup(spi, jedec >> DATAFLASH_SHIFT_ID, false);
+ if (!IS_ERR(info))
+ return info;
/*
* Treat other chips as errors ... we won't know the right page
* size (it might be binary) even when we can tell which density
* class is involved (legacy chip id scheme).
*/
- dev_warn(&spi->dev, "JEDEC id %06x not handled\n", jedec);
+ dev_warn(&spi->dev, "JEDEC id %016llx not handled\n", jedec);
return ERR_PTR(-ENODEV);
}
--
2.9.3
On 04/21/2017 06:30 PM, Andrey Smirnov wrote:
> In anticipation of supporting chips that need it, extend the size of
> struct flash_info's 'jedec_id' field to make room 2 byte of extended
> device information as well as add code to fetch this data during
> jedec_probe().
>
> Cc: [email protected]
> Cc: David Woodhouse <[email protected]>
> Cc: Brian Norris <[email protected]>
> Cc: Boris Brezillon <[email protected]>
> Cc: Marek Vasut <[email protected]>
> Cc: Richard Weinberger <[email protected]>
> Cc: Cyrille Pitchen <[email protected]>
> Cc: [email protected]
> Acked-by: Marek Vasut <[email protected]>
> Signed-off-by: Andrey Smirnov <[email protected]>
> ---
>
> Changes since [v4]:
>
> - Corrected value of SUP_EXTID from BIT(3) to 0x0004
>
> - Collected Acked-by from Marek
Super, entire series is great, thanks !
--
Best regards,
Marek Vasut
Change the following:
- Replace indentation between type and name of local variable from
tabs to spaces
- Replace magic number 0x1F with CFI_MFR_ATMEL macro
- Replace variable 'tmp' with 'ret' and 'i' where appropriate
- Reformat multi-line comments and add newlines where appropriate
No functional change intended.
Cc: [email protected]
Cc: David Woodhouse <[email protected]>
Cc: Brian Norris <[email protected]>
Cc: Boris Brezillon <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Cyrille Pitchen <[email protected]>
Cc: Marek Vasut <[email protected]>
Cc: [email protected]
Acked-by: Marek Vasut <[email protected]>
Signed-off-by: Andrey Smirnov <[email protected]>
---
No changes since [v3], [v4]
Changes since [v2]:
- Re-worded commit message
- Collected Acked-by from Marek
Not present in v1
[v2] http://lkml.kernel.org/r/[email protected]
[v3] http://lkml.kernel.org/r/[email protected]
[v4] http://lkml.kernel.org/r/[email protected]
drivers/mtd/devices/mtd_dataflash.c | 31 +++++++++++++++++--------------
1 file changed, 17 insertions(+), 14 deletions(-)
diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index a566231..5b7a8c3 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -82,6 +82,7 @@
#define OP_WRITE_SECURITY_REVC 0x9A
#define OP_WRITE_SECURITY 0x9B /* revision D */
+#define CFI_MFR_ATMEL 0x1F
struct dataflash {
u8 command[4];
@@ -738,14 +739,15 @@ static struct flash_info dataflash_data[] = {
static struct flash_info *jedec_probe(struct spi_device *spi)
{
- int tmp;
- u8 code = OP_READ_ID;
- u8 id[3];
- u32 jedec;
- struct flash_info *info;
+ int ret, i;
+ u8 code = OP_READ_ID;
+ u8 id[3];
+ u32 jedec;
+ struct flash_info *info;
int status;
- /* JEDEC also defines an optional "extended device information"
+ /*
+ * JEDEC also defines an optional "extended device information"
* string for after vendor-specific data, after the three bytes
* we use here. Supporting some chips might require using it.
*
@@ -753,13 +755,14 @@ static struct flash_info *jedec_probe(struct spi_device *spi)
* That's not an error; only rev C and newer chips handle it, and
* only Atmel sells these chips.
*/
- tmp = spi_write_then_read(spi, &code, 1, id, 3);
- if (tmp < 0) {
+ ret = spi_write_then_read(spi, &code, 1, id, 3);
+ if (ret < 0) {
pr_debug("%s: error %d reading JEDEC ID\n",
- dev_name(&spi->dev), tmp);
- return ERR_PTR(tmp);
+ dev_name(&spi->dev), ret);
+ return ERR_PTR(ret);
}
- if (id[0] != 0x1f)
+
+ if (id[0] != CFI_MFR_ATMEL)
return NULL;
jedec = id[0];
@@ -768,9 +771,9 @@ static struct flash_info *jedec_probe(struct spi_device *spi)
jedec = jedec << 8;
jedec |= id[2];
- for (tmp = 0, info = dataflash_data;
- tmp < ARRAY_SIZE(dataflash_data);
- tmp++, info++) {
+ for (i = 0, info = dataflash_data;
+ i < ARRAY_SIZE(dataflash_data);
+ i++, info++) {
if (info->jedec_id == jedec) {
pr_debug("%s: OTP, sector protect%s\n",
dev_name(&spi->dev),
--
2.9.3
Lion's share of calls to pr_debug in this driver follow the pattern of
pr_debug("%s <message>", dev_name(<dev>), <arguments>), which should
be semantically identical to dev_dbg(<dev>, "<message>", <arguments>),
so replace such occurencies to simplify the code.
Convert the small minority of pr_debug that do not follow pattern from
above to use dev_dbg as well, for the sake of consistency.
Convert similar patter of printk(KERN_ERR, "%s: ...", dev_name(...),
...) to use dev_err instead.
No functional change intended.
Cc: [email protected]
Cc: David Woodhouse <[email protected]>
Cc: Brian Norris <[email protected]>
Cc: Boris Brezillon <[email protected]>
Cc: Marek Vasut <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Cyrille Pitchen <[email protected]>
Cc: [email protected]
Reviewed-by: Marek Vasut <[email protected]>
Signed-off-by: Andrey Smirnov <[email protected]>
---
No changes since [v4]
Changes between since [v3]:
- Collected Reviewd-by from Marek
Not present in v2, v1
[v3] https://patchwork.ozlabs.org/patch/752332/
[v4] http://lkml.kernel.org/r/[email protected]
drivers/mtd/devices/mtd_dataflash.c | 74 +++++++++++++++++--------------------
1 file changed, 33 insertions(+), 41 deletions(-)
diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index 5b7a8c3..ccd1e02 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -130,8 +130,7 @@ static int dataflash_waitready(struct spi_device *spi)
for (;;) {
status = dataflash_status(spi);
if (status < 0) {
- pr_debug("%s: status %d?\n",
- dev_name(&spi->dev), status);
+ dev_dbg(&spi->dev, "status %d?\n", status);
status = 0;
}
@@ -157,9 +156,8 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr)
u8 *command;
u32 rem;
- pr_debug("%s: erase addr=0x%llx len 0x%llx\n",
- dev_name(&spi->dev), (long long)instr->addr,
- (long long)instr->len);
+ dev_dbg(&spi->dev, "erase addr=0x%llx len 0x%llx\n",
+ (long long)instr->addr, (long long)instr->len);
div_u64_rem(instr->len, priv->page_size, &rem);
if (rem)
@@ -192,7 +190,7 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr)
command[2] = (u8)(pageaddr >> 8);
command[3] = 0;
- pr_debug("ERASE %s: (%x) %x %x %x [%i]\n",
+ dev_dbg(&spi->dev, "ERASE %s: (%x) %x %x %x [%i]\n",
do_block ? "block" : "page",
command[0], command[1], command[2], command[3],
pageaddr);
@@ -201,8 +199,8 @@ static int dataflash_erase(struct mtd_info *mtd, struct erase_info *instr)
(void) dataflash_waitready(spi);
if (status < 0) {
- printk(KERN_ERR "%s: erase %x, err %d\n",
- dev_name(&spi->dev), pageaddr, status);
+ dev_err(&spi->dev, "erase %x, err %d\n",
+ pageaddr, status);
/* REVISIT: can retry instr->retries times; or
* giveup and instr->fail_addr = instr->addr;
*/
@@ -243,8 +241,8 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len,
u8 *command;
int status;
- pr_debug("%s: read 0x%x..0x%x\n", dev_name(&priv->spi->dev),
- (unsigned)from, (unsigned)(from + len));
+ dev_dbg(&priv->spi->dev, "read 0x%x..0x%x\n",
+ (unsigned int)from, (unsigned int)(from + len));
/* Calculate flash page/byte address */
addr = (((unsigned)from / priv->page_size) << priv->page_offset)
@@ -252,7 +250,7 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len,
command = priv->command;
- pr_debug("READ: (%x) %x %x %x\n",
+ dev_dbg(&priv->spi->dev, "READ: (%x) %x %x %x\n",
command[0], command[1], command[2], command[3]);
spi_message_init(&msg);
@@ -284,8 +282,7 @@ static int dataflash_read(struct mtd_info *mtd, loff_t from, size_t len,
*retlen = msg.actual_length - 8;
status = 0;
} else
- pr_debug("%s: read %x..%x --> %d\n",
- dev_name(&priv->spi->dev),
+ dev_dbg(&priv->spi->dev, "read %x..%x --> %d\n",
(unsigned)from, (unsigned)(from + len),
status);
return status;
@@ -311,8 +308,8 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
int status = -EINVAL;
u8 *command;
- pr_debug("%s: write 0x%x..0x%x\n",
- dev_name(&spi->dev), (unsigned)to, (unsigned)(to + len));
+ dev_dbg(&spi->dev, "write 0x%x..0x%x\n",
+ (unsigned int)to, (unsigned int)(to + len));
spi_message_init(&msg);
@@ -329,7 +326,7 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
mutex_lock(&priv->lock);
while (remaining > 0) {
- pr_debug("write @ %i:%i len=%i\n",
+ dev_dbg(&spi->dev, "write @ %i:%i len=%i\n",
pageaddr, offset, writelen);
/* REVISIT:
@@ -357,13 +354,13 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
command[2] = (addr & 0x0000FF00) >> 8;
command[3] = 0;
- pr_debug("TRANSFER: (%x) %x %x %x\n",
+ dev_dbg(&spi->dev, "TRANSFER: (%x) %x %x %x\n",
command[0], command[1], command[2], command[3]);
status = spi_sync(spi, &msg);
if (status < 0)
- pr_debug("%s: xfer %u -> %d\n",
- dev_name(&spi->dev), addr, status);
+ dev_dbg(&spi->dev, "xfer %u -> %d\n",
+ addr, status);
(void) dataflash_waitready(priv->spi);
}
@@ -375,7 +372,7 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
command[2] = (addr & 0x0000FF00) >> 8;
command[3] = (addr & 0x000000FF);
- pr_debug("PROGRAM: (%x) %x %x %x\n",
+ dev_dbg(&spi->dev, "PROGRAM: (%x) %x %x %x\n",
command[0], command[1], command[2], command[3]);
x[1].tx_buf = writebuf;
@@ -384,8 +381,8 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
status = spi_sync(spi, &msg);
spi_transfer_del(x + 1);
if (status < 0)
- pr_debug("%s: pgm %u/%u -> %d\n",
- dev_name(&spi->dev), addr, writelen, status);
+ dev_dbg(&spi->dev, "pgm %u/%u -> %d\n",
+ addr, writelen, status);
(void) dataflash_waitready(priv->spi);
@@ -399,20 +396,20 @@ static int dataflash_write(struct mtd_info *mtd, loff_t to, size_t len,
command[2] = (addr & 0x0000FF00) >> 8;
command[3] = 0;
- pr_debug("COMPARE: (%x) %x %x %x\n",
+ dev_dbg(&spi->dev, "COMPARE: (%x) %x %x %x\n",
command[0], command[1], command[2], command[3]);
status = spi_sync(spi, &msg);
if (status < 0)
- pr_debug("%s: compare %u -> %d\n",
- dev_name(&spi->dev), addr, status);
+ dev_dbg(&spi->dev, "compare %u -> %d\n",
+ addr, status);
status = dataflash_waitready(priv->spi);
/* Check result of the compare operation */
if (status & (1 << 6)) {
- printk(KERN_ERR "%s: compare page %u, err %d\n",
- dev_name(&spi->dev), pageaddr, status);
+ dev_err(&spi->dev, "compare page %u, err %d\n",
+ pageaddr, status);
remaining = 0;
status = -EIO;
break;
@@ -757,8 +754,7 @@ static struct flash_info *jedec_probe(struct spi_device *spi)
*/
ret = spi_write_then_read(spi, &code, 1, id, 3);
if (ret < 0) {
- pr_debug("%s: error %d reading JEDEC ID\n",
- dev_name(&spi->dev), ret);
+ dev_dbg(&spi->dev, "error %d reading JEDEC ID\n", ret);
return ERR_PTR(ret);
}
@@ -775,16 +771,14 @@ static struct flash_info *jedec_probe(struct spi_device *spi)
i < ARRAY_SIZE(dataflash_data);
i++, info++) {
if (info->jedec_id == jedec) {
- pr_debug("%s: OTP, sector protect%s\n",
- dev_name(&spi->dev),
- (info->flags & SUP_POW2PS)
- ? ", binary pagesize" : ""
- );
+ dev_dbg(&spi->dev, "OTP, sector protect%s\n",
+ (info->flags & SUP_POW2PS) ?
+ ", binary pagesize" : "");
if (info->flags & SUP_POW2PS) {
status = dataflash_status(spi);
if (status < 0) {
- pr_debug("%s: status error %d\n",
- dev_name(&spi->dev), status);
+ dev_dbg(&spi->dev, "status error %d\n",
+ status);
return ERR_PTR(status);
}
if (status & 0x1) {
@@ -848,8 +842,7 @@ static int dataflash_probe(struct spi_device *spi)
*/
status = dataflash_status(spi);
if (status <= 0 || status == 0xff) {
- pr_debug("%s: status error %d\n",
- dev_name(&spi->dev), status);
+ dev_dbg(&spi->dev, "status error %d\n", status);
if (status == 0 || status == 0xff)
status = -ENODEV;
return status;
@@ -890,8 +883,7 @@ static int dataflash_probe(struct spi_device *spi)
}
if (status < 0)
- pr_debug("%s: add_dataflash --> %d\n", dev_name(&spi->dev),
- status);
+ dev_dbg(&spi->dev, "add_dataflash --> %d\n", status);
return status;
}
@@ -901,7 +893,7 @@ static int dataflash_remove(struct spi_device *spi)
struct dataflash *flash = spi_get_drvdata(spi);
int status;
- pr_debug("%s: remove\n", dev_name(&spi->dev));
+ dev_dbg(&spi->dev, "remove\n");
status = mtd_device_unregister(&flash->mtd);
if (status == 0)
--
2.9.3
Cc: [email protected]
Cc: David Woodhouse <[email protected]>
Cc: Brian Norris <[email protected]>
Cc: Boris Brezillon <[email protected]>
Cc: Marek Vasut <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Cyrille Pitchen <[email protected]>
Cc: [email protected]
Acked-by: Marek Vasut <[email protected]>
Signed-off-by: Andrey Smirnov <[email protected]>
---
Changes since [v4]:
- Collected Acked-by from Marek
Changes since [v3]:
- Update the patch ot use SUP_EXTID
No changes between v3 to v1.
[v3] http://lkml.kernel.org/r/[email protected]
[v4] http://lkml.kernel.org/r/[email protected]
drivers/mtd/devices/mtd_dataflash.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index 3f1a0fb..5dc8bd0 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -736,6 +736,9 @@ static struct flash_info dataflash_data[] = {
{ "AT45DB642x", 0x1f2800, 8192, 1056, 11, SUP_POW2PS},
{ "at45db642d", 0x1f2800, 8192, 1024, 10, SUP_POW2PS | IS_POW2PS},
+
+ { "AT45DB641E", 0x1f28000100, 32768, 264, 9, SUP_EXTID | SUP_POW2PS},
+ { "at45db641e", 0x1f28000100, 32768, 256, 8, SUP_EXTID | SUP_POW2PS | IS_POW2PS},
};
static struct flash_info *jedec_lookup(struct spi_device *spi,
--
2.9.3
> diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
> index f9e9bd1..a566231 100644
> --- a/drivers/mtd/devices/mtd_dataflash.c
> +++ b/drivers/mtd/devices/mtd_dataflash.c
> @@ -84,7 +84,7 @@
>
>
On a Freescale i.MX51 SoC I tested this full patchset with both the
AT45DB642D and AT45DB641E SPI NOR devices. Both were correctly
identified:
With AT45DB642D part:
[ 2.560788] mtd_dataflash spi0.1: at45db642d (8192 KBytes) pagesize
1024 bytes (OTP)
With AT45DB641E part:
[ 2.572970] mtd_dataflash spi0.1: at45db641e (8192 KBytes) pagesize
256 bytes (OTP)
Tested-by: Chris Healy <[email protected]>