* [PATCH 0/2] m25p80: re-import it againt mtd_add_host
@ 2012-10-31 12:01 Jean-Christophe PLAGNIOL-VILLARD
2012-10-31 12:04 ` [PATCH 1/2] " Jean-Christophe PLAGNIOL-VILLARD
` (3 more replies)
0 siblings, 4 replies; 11+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2012-10-31 12:01 UTC (permalink / raw)
To: barebox
Hi,
so we now create the cdev via mtd
This will also simplify sync with linux
to avoid the m25p8000 or m25p00 the cdev is still named name m25p and the
drivers m25p80
sync with linux too
this patch series is agianst mtd_dataflash support
The following changes since commit 9428c386f876fa3a8871eeea4725a805cea5c367:
mtd: add dataflash support (2012-10-31 04:48:39 +0800)
are available in the git repository at:
git://git.jcrosoft.org/barebox.git delivery/m25p80
for you to fetch changes up to 35b8b98230dbcfe25973d5ed52a874027b4f3f05:
m25p80: sync flash support with the kernel (2012-10-31 04:51:08 +0800)
----------------------------------------------------------------
Jean-Christophe PLAGNIOL-VILLARD (2):
m25p80: re-import it againt mtd_add_host
m25p80: sync flash support with the kernel
arch/arm/boards/freescale-mx6-sabrelite/board.c | 2 +-
drivers/mtd/devices/Kconfig | 27 ++++++++++++
drivers/mtd/devices/Makefile | 1 +
drivers/{nor => mtd/devices}/m25p80.c | 512 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----------------------------------------------------------------------------------------------------
drivers/nor/Kconfig | 27 ------------
drivers/nor/Makefile | 1 -
drivers/nor/m25p80.h | 84 ------------------------------------
include/linux/mtd/cfi.h | 65 ++++++++++++++++++++++++++++
8 files changed, 371 insertions(+), 348 deletions(-)
rename drivers/{nor => mtd/devices}/m25p80.c (65%)
delete mode 100644 drivers/nor/m25p80.h
create mode 100644 include/linux/mtd/cfi.h
Best Regards,
J.
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
^ permalink raw reply [flat|nested] 11+ messages in thread
* [PATCH 1/2] m25p80: re-import it againt mtd_add_host
2012-10-31 12:01 [PATCH 0/2] m25p80: re-import it againt mtd_add_host Jean-Christophe PLAGNIOL-VILLARD
@ 2012-10-31 12:04 ` Jean-Christophe PLAGNIOL-VILLARD
2012-10-31 12:04 ` [PATCH 2/2] m25p80: sync flash support with the kernel Jean-Christophe PLAGNIOL-VILLARD
2012-10-31 21:29 ` [PATCH 0/2] m25p80: re-import it againt mtd_add_host Sascha Hauer
` (2 subsequent siblings)
3 siblings, 1 reply; 11+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2012-10-31 12:04 UTC (permalink / raw)
To: barebox
so we now create the cdev via mtd
This will also simplify sync with linux
to avoid the m25p8000 or m25p00 the cdev is still named name m25p and the
drivers m25p80
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
arch/arm/boards/freescale-mx6-sabrelite/board.c | 2 +-
drivers/mtd/devices/Kconfig | 27 ++
drivers/mtd/devices/Makefile | 1 +
drivers/{nor => mtd/devices}/m25p80.c | 470 ++++++++++++-----------
drivers/nor/Kconfig | 27 --
drivers/nor/Makefile | 1 -
drivers/nor/m25p80.h | 84 ----
include/linux/mtd/cfi.h | 65 ++++
8 files changed, 338 insertions(+), 339 deletions(-)
rename drivers/{nor => mtd/devices}/m25p80.c (69%)
delete mode 100644 drivers/nor/m25p80.h
create mode 100644 include/linux/mtd/cfi.h
diff --git a/arch/arm/boards/freescale-mx6-sabrelite/board.c b/arch/arm/boards/freescale-mx6-sabrelite/board.c
index 25402d7..1c1ae56 100644
--- a/arch/arm/boards/freescale-mx6-sabrelite/board.c
+++ b/arch/arm/boards/freescale-mx6-sabrelite/board.c
@@ -209,7 +209,7 @@ static struct spi_imx_master sabrelite_spi_0_data = {
static const struct spi_board_info sabrelite_spi_board_info[] = {
{
- .name = "m25p",
+ .name = "m25p80",
.max_speed_hz = 40000000,
.bus_num = 0,
.chip_select = 0,
diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig
index e956921..679ea80 100644
--- a/drivers/mtd/devices/Kconfig
+++ b/drivers/mtd/devices/Kconfig
@@ -19,6 +19,33 @@ config MTD_DATAFLASH_WRITE_VERIFY
device thinks the write was successful, a bit could have been
flipped accidentally due to device wear or something else.
+config MTD_M25P80
+ tristate "Support most SPI Flash chips (AT26DF, M25P, W25X, ...)"
+ depends on SPI
+ help
+ This enables access to most modern SPI flash chips, used for
+ program and data storage. Series supported include Atmel AT26DF,
+ Spansion S25SL, SST 25VF, ST M25P, and Winbond W25X. Other chips
+ are supported as well. See the driver source for the current list,
+ or to add other chips.
+
+ Note that the original DataFlash chips (AT45 series, not AT26DF),
+ need an entirely different driver.
+
+ Set up your spi devices with the right board-specific platform data,
+ if you want to specify device partitioning or to use a device which
+ doesn't support the JEDEC ID instruction.
+
+config MTD_SST25L
+ tristate "Support SST25L (non JEDEC) SPI Flash chips"
+ depends on MTD_M25P80
+ help
+ This enables access to the non JEDEC SST25L SPI flash chips, used
+ for program and data storage.
+
+ Set up your spi devices with the right board-specific platform data,
+ if you want to specify device partitioning.
+
config MTD_DOCG3
bool "M-Systems Disk-On-Chip G3"
select BCH
diff --git a/drivers/mtd/devices/Makefile b/drivers/mtd/devices/Makefile
index d7e27d1..bf1f8a9 100644
--- a/drivers/mtd/devices/Makefile
+++ b/drivers/mtd/devices/Makefile
@@ -4,3 +4,4 @@
obj-$(CONFIG_MTD_DATAFLASH) += mtd_dataflash.o
obj-$(CONFIG_MTD_DOCG3) += docg3.o
+obj-$(CONFIG_MTD_M25P80) += m25p80.o
diff --git a/drivers/nor/m25p80.c b/drivers/mtd/devices/m25p80.c
similarity index 69%
rename from drivers/nor/m25p80.c
rename to drivers/mtd/devices/m25p80.c
index e3b5b95..b4ac045 100644
--- a/drivers/nor/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -4,9 +4,6 @@
* Author: Mike Lavender, mike@steroidmicros.com
* Copyright (c) 2005, Intec Automation Inc.
*
- * Adapted to barebox : Franck JULLIEN <elec4fun@gmail.com>
- * Copyright (c) 2011
- *
* Some parts are based on lart.c by Abraham Van Der Merwe
*
* Cleaned up and generalized based on mtd_dataflash.c
@@ -27,8 +24,74 @@
#include <errno.h>
#include <linux/err.h>
#include <clock.h>
+#include <linux/math64.h>
+#include <linux/mtd/cfi.h>
#include <linux/mtd/mtd.h>
-#include "m25p80.h"
+
+/* Flash opcodes. */
+#define OPCODE_WREN 0x06 /* Write enable */
+#define OPCODE_RDSR 0x05 /* Read status register */
+#define OPCODE_WRSR 0x01 /* Write status register 1 byte */
+#define OPCODE_NORM_READ 0x03 /* Read data bytes (low frequency) */
+#define OPCODE_FAST_READ 0x0b /* Read data bytes (high frequency) */
+#define OPCODE_PP 0x02 /* Page program (up to 256 bytes) */
+#define OPCODE_BE_4K 0x20 /* Erase 4KiB block */
+#define OPCODE_BE_32K 0x52 /* Erase 32KiB block */
+#define OPCODE_CHIP_ERASE 0xc7 /* Erase whole flash chip */
+#define OPCODE_SE 0xd8 /* Sector erase (usually 64KiB) */
+#define OPCODE_RDID 0x9f /* Read JEDEC ID */
+
+/* Used for SST flashes only. */
+#define OPCODE_BP 0x02 /* Byte program */
+#define OPCODE_WRDI 0x04 /* Write disable */
+#define OPCODE_AAI_WP 0xad /* Auto address increment word program */
+
+/* Used for Macronix flashes only. */
+#define OPCODE_EN4B 0xb7 /* Enter 4-byte mode */
+#define OPCODE_EX4B 0xe9 /* Exit 4-byte mode */
+
+/* Used for Spansion flashes only. */
+#define OPCODE_BRWR 0x17 /* Bank register write */
+
+/* Status Register bits. */
+#define SR_WIP 1 /* Write in progress */
+#define SR_WEL 2 /* Write enable latch */
+/* meaning of other SR_* bits may differ between vendors */
+#define SR_BP0 4 /* Block protect 0 */
+#define SR_BP1 8 /* Block protect 1 */
+#define SR_BP2 0x10 /* Block protect 2 */
+#define SR_SRWD 0x80 /* SR write protect */
+
+/* Define max times to check status register before we give up. */
+#define MAX_READY_WAIT 40 /* M25P16 specs 40s max chip erase */
+#define MAX_CMD_SIZE 6
+
+#define JEDEC_MFR(_jedec_id) ((_jedec_id) >> 16)
+
+/****************************************************************************/
+
+#define SPI_NAME_SIZE 32
+
+struct spi_device_id {
+ char name[SPI_NAME_SIZE];
+ unsigned long driver_data;
+};
+
+struct m25p {
+ struct spi_device *spi;
+ struct mtd_info mtd;
+ u16 page_size;
+ unsigned sector_size;
+ u16 addr_width;
+ u8 erase_opcode;
+ u8 erase_opcode_4k;
+ u8 *command;
+};
+
+static inline struct m25p *mtd_to_m25p(struct mtd_info *mtd)
+{
+ return container_of(mtd, struct m25p, mtd);
+}
/****************************************************************************/
@@ -94,11 +157,18 @@ static inline int write_disable(struct m25p *flash)
/*
* Enable/disable 4-byte addressing mode.
*/
-static inline int set_4byte(struct m25p *flash, int enable)
+static inline int set_4byte(struct m25p *flash, u32 jedec_id, int enable)
{
- u8 code = enable ? OPCODE_EN4B : OPCODE_EX4B;
-
- return spi_write_then_read(flash->spi, &code, 1, NULL, 0);
+ switch (JEDEC_MFR(jedec_id)) {
+ case CFI_MFR_MACRONIX:
+ flash->command[0] = enable ? OPCODE_EN4B : OPCODE_EX4B;
+ return spi_write(flash->spi, flash->command, 1);
+ default:
+ /* Spansion style */
+ flash->command[0] = OPCODE_BRWR;
+ flash->command[1] = enable << 7;
+ return spi_write(flash->spi, flash->command, 2);
+ }
}
/*
@@ -131,7 +201,7 @@ static int wait_till_ready(struct m25p *flash)
static int erase_chip(struct m25p *flash)
{
dev_dbg(&flash->spi->dev, "%s %lldKiB\n",
- __func__, (long long)(flash->size >> 10));
+ __func__, (long long)(flash->mtd.size >> 10));
/* Wait until finished previous write command. */
if (wait_till_ready(flash))
@@ -171,7 +241,7 @@ static int m25p_cmdsz(struct m25p *flash)
static int erase_sector(struct m25p *flash, u32 offset, u32 command)
{
dev_dbg(&flash->spi->dev, "%s %dKiB at 0x%08x\n",
- __func__, flash->erasesize / 1024, offset);
+ __func__, flash->mtd.erasesize / 1024, offset);
/* Wait until finished previous write command. */
if (wait_till_ready(flash))
@@ -189,30 +259,39 @@ static int erase_sector(struct m25p *flash, u32 offset, u32 command)
return 0;
}
+/****************************************************************************/
+
+/*
+ * MTD implementation
+ */
+
/*
* Erase an address range on the flash chip. The address range may extend
* one or more erase sectors. Return an error is there is a problem erasing.
*/
-static ssize_t m25p80_erase(struct cdev *cdev, size_t count, loff_t offset)
+static int m25p80_erase(struct mtd_info *mtd, struct erase_info *instr)
{
- struct m25p *flash = cdev->priv;
+ struct m25p *flash = mtd_to_m25p(mtd);
u32 addr, len;
+ uint32_t rem;
- dev_dbg(&flash->spi->dev, "%s %s 0x%llx, len %lld\n",
- __func__, "at", (long long)offset, (long long)count);
+ dev_dbg(&flash->spi->dev, "%s at 0x%llx, len %lld\n",
+ __func__, (long long)instr->addr,
+ (long long)instr->len);
- /* sanity checks */
- if (offset + count > flash->size)
+ div_u64_rem(instr->len, mtd->erasesize, &rem);
+ if (rem)
return -EINVAL;
- /* Align start and len to erase blocks */
- addr = offset & ~(flash->erasesize - 1);
- len = ALIGN(offset + count, flash->erasesize) - addr;
+ addr = instr->addr;
+ len = instr->len;
/* whole-chip erase? */
- if (len == flash->size) {
- if (erase_chip(flash))
+ if (len == flash->mtd.size) {
+ if (erase_chip(flash)) {
+ instr->state = MTD_ERASE_FAILED;
return -EIO;
+ }
return 0;
}
@@ -222,8 +301,8 @@ static ssize_t m25p80_erase(struct cdev *cdev, size_t count, loff_t offset)
return -EINTR;
if (erase_sector(flash, addr, flash->erase_opcode_4k))
return -EIO;
- addr += flash->erasesize;
- len -= flash->erasesize;
+ addr += mtd->erasesize;
+ len -= mtd->erasesize;
}
while (len >= flash->sector_size) {
@@ -240,8 +319,8 @@ static ssize_t m25p80_erase(struct cdev *cdev, size_t count, loff_t offset)
return -EINTR;
if (erase_sector(flash, addr, flash->erase_opcode_4k))
return -EIO;
- addr += flash->erasesize;
- len -= flash->erasesize;
+ addr += mtd->erasesize;
+ len -= mtd->erasesize;
}
} else {
while (len) {
@@ -250,35 +329,34 @@ static ssize_t m25p80_erase(struct cdev *cdev, size_t count, loff_t offset)
if (erase_sector(flash, addr, flash->erase_opcode))
return -EIO;
- if (len <= flash->erasesize)
+ if (len <= mtd->erasesize)
break;
- addr += flash->erasesize;
- len -= flash->erasesize;
+ addr += mtd->erasesize;
+ len -= mtd->erasesize;
}
}
if (wait_till_ready(flash))
return -ETIMEDOUT;
+ instr->state = MTD_ERASE_DONE;
+ mtd_erase_callback(instr);
+
return 0;
}
-ssize_t m25p80_read(struct cdev *cdev, void *buf, size_t count, loff_t offset,
- ulong flags)
+/*
+ * Read an address range from the flash chip. The address range
+ * may be any size provided it is within the physical boundaries.
+ */
+static int m25p80_read(struct mtd_info *mtd, loff_t from, size_t len,
+ size_t *retlen, u_char *buf)
{
- struct m25p *flash = cdev->priv;
+ struct m25p *flash = mtd_to_m25p(mtd);
struct spi_transfer t[2];
struct spi_message m;
- ssize_t retlen;
int fast_read = 0;
- /* sanity checks */
- if (!count)
- return 0;
-
- if (offset + count > flash->size)
- return -EINVAL;
-
if (flash->spi->max_speed_hz >= 25000000)
fast_read = 1;
@@ -294,12 +372,9 @@ ssize_t m25p80_read(struct cdev *cdev, void *buf, size_t count, loff_t offset,
spi_message_add_tail(&t[0], &m);
t[1].rx_buf = buf;
- t[1].len = count;
+ t[1].len = len;
spi_message_add_tail(&t[1], &m);
- /* Byte count starts at zero. */
- retlen = 0;
-
/* Wait till previous write/erase is done. */
if (wait_till_ready(flash))
return -ETIMEDOUT;
@@ -311,29 +386,30 @@ ssize_t m25p80_read(struct cdev *cdev, void *buf, size_t count, loff_t offset,
/* Set up the write data buffer. */
flash->command[0] = fast_read ? OPCODE_FAST_READ : OPCODE_NORM_READ;
- m25p_addr2cmd(flash, offset, flash->command);
+ m25p_addr2cmd(flash, from, flash->command);
spi_sync(flash->spi, &m);
- retlen = m.actual_length - m25p_cmdsz(flash) - fast_read;
+ *retlen = m.actual_length - m25p_cmdsz(flash) - fast_read;
- return retlen;
+ return 0;
}
-ssize_t m25p80_write(struct cdev *cdev, const void *buf, size_t count,
- loff_t offset, ulong flags)
+/*
+ * Write an address range to the flash chip. Data must be written in
+ * FLASH_PAGESIZE chunks. The address range may be any size provided
+ * it is within the physical boundaries.
+ */
+static int m25p80_write(struct mtd_info *mtd, loff_t to, size_t len,
+ size_t *retlen, const u_char *buf)
{
- struct m25p *flash = cdev->priv;
+ struct m25p *flash = mtd_to_m25p(mtd);
+ u32 page_offset, page_size;
struct spi_transfer t[2];
struct spi_message m;
- ssize_t retlen = 0;
- u32 page_offset, page_size;
debug("m25p80_write %ld bytes at 0x%08lX\n", (unsigned long)count, offset);
- if (offset + count > flash->size)
- return -EINVAL;
-
spi_message_init(&m);
memset(t, 0, (sizeof t));
@@ -352,17 +428,17 @@ ssize_t m25p80_write(struct cdev *cdev, const void *buf, size_t count,
/* Set up the opcode in the write buffer. */
flash->command[0] = OPCODE_PP;
- m25p_addr2cmd(flash, offset, flash->command);
+ m25p_addr2cmd(flash, to, flash->command);
- page_offset = offset & (flash->page_size - 1);
+ page_offset = to & (flash->page_size - 1);
/* do all the bytes fit onto one page? */
- if (page_offset + count <= flash->page_size) {
- t[1].len = count;
+ if (page_offset + len <= flash->page_size) {
+ t[1].len = len;
spi_sync(flash->spi, &m);
- retlen = m.actual_length - m25p_cmdsz(flash);
+ *retlen = m.actual_length - m25p_cmdsz(flash);
} else {
u32 i;
@@ -372,16 +448,16 @@ ssize_t m25p80_write(struct cdev *cdev, const void *buf, size_t count,
t[1].len = page_size;
spi_sync(flash->spi, &m);
- retlen = m.actual_length - m25p_cmdsz(flash);
+ *retlen = m.actual_length - m25p_cmdsz(flash);
/* write everything in flash->page_size chunks */
- for (i = page_size; i < count; i += page_size) {
- page_size = count - i;
+ for (i = page_size; i < len; i += page_size) {
+ page_size = len - i;
if (page_size > flash->page_size)
page_size = flash->page_size;
/* write the next page to flash */
- m25p_addr2cmd(flash, offset + i, flash->command);
+ m25p_addr2cmd(flash, to + i, flash->command);
t[1].tx_buf = buf + i;
t[1].len = page_size;
@@ -392,34 +468,24 @@ ssize_t m25p80_write(struct cdev *cdev, const void *buf, size_t count,
spi_sync(flash->spi, &m);
- retlen += m.actual_length - m25p_cmdsz(flash);
-
+ *retlen += m.actual_length - m25p_cmdsz(flash);
}
}
- return retlen;
+ return 0;
}
-#ifdef CONFIG_MTD_SST25L
-ssize_t sst_write(struct cdev *cdev, const void *buf, size_t count, loff_t offset,
- ulong flags)
+
+static int sst_write(struct mtd_info *mtd, loff_t to, size_t len,
+ size_t *retlen, const u_char *buf)
{
- struct m25p *flash = cdev->priv;
+ struct m25p *flash = mtd_to_m25p(mtd);
struct spi_transfer t[2];
struct spi_message m;
size_t actual;
- ssize_t retlen;
int cmd_sz, ret;
- debug("sst_write %ld bytes at 0x%08lX\n", (unsigned long)count, offset);
-
- retlen = 0;
-
- /* sanity checks */
- if (!count)
- return 0;
-
- if (offset + count > flash->size)
- return -EINVAL;
+ pr_debug("%s: %s to 0x%08x, len %zd\n", dev_name(&flash->spi->dev),
+ __func__, (u32)to, len);
spi_message_init(&m);
memset(t, 0, (sizeof t));
@@ -438,11 +504,11 @@ ssize_t sst_write(struct cdev *cdev, const void *buf, size_t count, loff_t offse
write_enable(flash);
- actual = offset % 2;
+ actual = to % 2;
/* Start write from odd address. */
if (actual) {
flash->command[0] = OPCODE_BP;
- m25p_addr2cmd(flash, offset, flash->command);
+ m25p_addr2cmd(flash, to, flash->command);
/* write one byte. */
t[1].len = 1;
@@ -450,16 +516,16 @@ ssize_t sst_write(struct cdev *cdev, const void *buf, size_t count, loff_t offse
ret = wait_till_ready(flash);
if (ret)
goto time_out;
- retlen += m.actual_length - m25p_cmdsz(flash);
+ *retlen += m.actual_length - m25p_cmdsz(flash);
}
- offset += actual;
+ to += actual;
flash->command[0] = OPCODE_AAI_WP;
- m25p_addr2cmd(flash, offset, flash->command);
+ m25p_addr2cmd(flash, to, flash->command);
/* Write out most of the data here. */
cmd_sz = m25p_cmdsz(flash);
- for (; actual < count - 1; actual += 2) {
+ for (; actual < len - 1; actual += 2) {
t[0].len = cmd_sz;
/* write two bytes. */
t[1].len = 2;
@@ -469,9 +535,9 @@ ssize_t sst_write(struct cdev *cdev, const void *buf, size_t count, loff_t offse
ret = wait_till_ready(flash);
if (ret)
goto time_out;
- retlen += m.actual_length - cmd_sz;
+ *retlen += m.actual_length - cmd_sz;
cmd_sz = 1;
- offset += 2;
+ to += 2;
}
write_disable(flash);
ret = wait_till_ready(flash);
@@ -479,10 +545,10 @@ ssize_t sst_write(struct cdev *cdev, const void *buf, size_t count, loff_t offse
goto time_out;
/* Write out trailing byte if it exists. */
- if (actual != count) {
+ if (actual != len) {
write_enable(flash);
flash->command[0] = OPCODE_BP;
- m25p_addr2cmd(flash, offset, flash->command);
+ m25p_addr2cmd(flash, to, flash->command);
t[0].len = m25p_cmdsz(flash);
t[1].len = 1;
t[1].tx_buf = buf + actual;
@@ -491,34 +557,42 @@ ssize_t sst_write(struct cdev *cdev, const void *buf, size_t count, loff_t offse
ret = wait_till_ready(flash);
if (ret)
goto time_out;
- retlen += m.actual_length - m25p_cmdsz(flash);
+ *retlen += m.actual_length - m25p_cmdsz(flash);
write_disable(flash);
}
time_out:
- return retlen;
-}
-#endif
-
-static void m25p80_info(struct device_d *dev)
-{
- struct m25p *flash = dev->priv;
- struct flash_info *info = flash->info;
-
- printf("Flash type : %s\n", flash->name);
- printf("Size : %lldKiB\n", (long long)flash->size / 1024);
- printf("Number of sectors : %d\n", info->n_sectors);
- printf("Sector size : %dKiB\n", info->sector_size / 1024);
- printf("\n");
+ return ret;
}
-
/****************************************************************************/
/*
* SPI device driver setup and teardown
*/
+struct flash_info {
+ /* JEDEC id zero means "no ID" (most older chips); otherwise it has
+ * a high byte of zero plus three data bytes: the manufacturer id,
+ * then a two byte device id.
+ */
+ u32 jedec_id;
+ u16 ext_id;
+
+ /* The size listed here is what works with OPCODE_SE, which isn't
+ * necessarily called a "sector" by the vendor.
+ */
+ unsigned sector_size;
+ u16 n_sectors;
+
+ u16 page_size;
+ u16 addr_width;
+
+ u16 flags;
+#define SECT_4K 0x01 /* OPCODE_BE_4K works uniformly */
+#define M25P_NO_ERASE 0x02 /* No erase command needed */
+};
+
#define INFO(_jedec_id, _ext_id, _sector_size, _n_sectors, _flags) \
((unsigned long)&(struct flash_info) { \
.jedec_id = (_jedec_id), \
@@ -667,8 +741,12 @@ static const struct spi_device_id *jedec_probe(struct spi_device *spi)
* string for after vendor-specific data, after the three bytes
* we use here. Supporting some chips might require using it.
*/
- spi_write_then_read(spi, &code, 1, id, 5);
-
+ tmp = spi_write_then_read(spi, &code, 1, id, 5);
+ if (tmp < 0) {
+ pr_debug("%s: error %d reading JEDEC ID\n",
+ dev_name(&spi->dev), tmp);
+ return ERR_PTR(tmp);
+ }
jedec = id[0];
jedec = jedec << 8;
jedec |= id[1];
@@ -686,84 +764,9 @@ static const struct spi_device_id *jedec_probe(struct spi_device *spi)
}
}
dev_err(&spi->dev, "unrecognized JEDEC id %06x\n", jedec);
-
- return NULL;
+ return ERR_PTR(-ENODEV);
}
-static struct file_operations m25p80_ops = {
- .read = m25p80_read,
- .write = m25p80_write,
- .erase = m25p80_erase,
- .lseek = dev_lseek_default,
-};
-
-static int m25p_mtd_read(struct mtd_info *mtd, loff_t from, size_t len,
- size_t *retlen, u_char *buf)
-{
- struct m25p *flash = container_of(mtd, struct m25p, mtd);
- ssize_t ret;
-
- ret = flash->cdev.ops->read(&flash->cdev, buf, len, from, 0);
- if (ret < 0) {
- *retlen = 0;
- return ret;
- }
-
- *retlen = ret;
- return 0;
-}
-
-static int m25p_mtd_write(struct mtd_info *mtd, loff_t to, size_t len,
- size_t *retlen, const u_char *buf)
-{
- struct m25p *flash = container_of(mtd, struct m25p, mtd);
- ssize_t ret;
-
- ret = flash->cdev.ops->write(&flash->cdev, buf, len, to, 0);
- if (ret < 0) {
- *retlen = 0;
- return ret;
- }
-
- *retlen = ret;
- return 0;
-}
-
-static int m25p_mtd_erase(struct mtd_info *mtd, struct erase_info *instr)
-{
- struct m25p *flash = container_of(mtd, struct m25p, mtd);
- ssize_t ret;
-
- ret = flash->cdev.ops->erase(&flash->cdev, instr->len, instr->addr);
-
- if (ret) {
- instr->state = MTD_ERASE_FAILED;
- return -EIO;
- }
-
- instr->state = MTD_ERASE_DONE;
- mtd_erase_callback(instr);
-
- return 0;
-}
-
-static void m25p_init_mtd(struct m25p *flash)
-{
- struct mtd_info *mtd = &flash->mtd;
-
- mtd->read = m25p_mtd_read;
- mtd->write = m25p_mtd_write;
- mtd->erase = m25p_mtd_erase;
- mtd->size = flash->size;
- mtd->name = flash->cdev.name;
- mtd->erasesize = flash->erasesize;
- mtd->writesize = 1;
- mtd->subpage_sft = 0;
- mtd->eraseregions = NULL;
- mtd->numeraseregions = 0;
- mtd->flags = MTD_CAP_NORFLASH;
- flash->cdev.mtd = mtd;
-}
/*
* board specific setup should have ensured the SPI clock used here
@@ -774,9 +777,9 @@ static int m25p_probe(struct device_d *dev)
{
struct spi_device *spi = (struct spi_device *)dev->type_data;
const struct spi_device_id *id = NULL;
- struct flash_info *info = NULL;
struct flash_platform_data *data;
struct m25p *flash;
+ struct flash_info *info = NULL;
unsigned i;
unsigned do_jdec_probe = 1;
@@ -786,7 +789,6 @@ static int m25p_probe(struct device_d *dev)
* newer chips, even if we don't recognize the particular chip.
*/
data = dev->platform_data;
-
if (data && data->type) {
const struct spi_device_id *plat_id;
@@ -812,10 +814,9 @@ static int m25p_probe(struct device_d *dev)
const struct spi_device_id *jid;
jid = jedec_probe(spi);
- if (!jid) {
- return -ENODEV;
+ if (IS_ERR(jid)) {
+ return PTR_ERR(jid);
} else if (jid != id) {
-
/*
* JEDEC knows better, so overwrite platform ID. We
* can't trust partitions any longer, but we'll let
@@ -842,78 +843,95 @@ static int m25p_probe(struct device_d *dev)
* up with the software protection bits set
*/
- if (info->jedec_id >> 16 == 0x1f ||
- info->jedec_id >> 16 == 0x89 ||
- info->jedec_id >> 16 == 0xbf) {
+ if (JEDEC_MFR(info->jedec_id) == CFI_MFR_ATMEL ||
+ JEDEC_MFR(info->jedec_id) == CFI_MFR_INTEL ||
+ JEDEC_MFR(info->jedec_id) == CFI_MFR_SST) {
write_enable(flash);
write_sr(flash, 0);
}
- flash->name = (char *)id->name;
- flash->info = info;
- flash->size = info->sector_size * info->n_sectors;
- flash->erasesize = info->sector_size;
- flash->sector_size = info->sector_size;
- flash->cdev.size = info->sector_size * info->n_sectors;
- flash->cdev.dev = dev;
- flash->cdev.ops = &m25p80_ops;
- flash->cdev.priv = flash;
-
if (data && data->name)
- flash->cdev.name = asprintf("%s%d", data->name, dev->id);
+ flash->mtd.name = data->name;
else
- flash->cdev.name = asprintf("%s", (char *)dev_name(&spi->dev));
+ flash->mtd.name = "m25p";
+
+ flash->mtd.type = MTD_NORFLASH;
+ flash->mtd.writesize = 1;
+ flash->mtd.flags = MTD_CAP_NORFLASH;
+ flash->mtd.size = info->sector_size * info->n_sectors;
+ flash->mtd.erase = m25p80_erase;
+ flash->mtd.read = m25p80_read;
-#ifdef CONFIG_MTD_SST25L
/* sst flash chips use AAI word program */
- if (info->jedec_id >> 16 == 0xbf)
- m25p80_ops.write = sst_write;
+ if (IS_ENABLED(CONFIG_MTD_SST25L) && JEDEC_MFR(info->jedec_id) == CFI_MFR_SST)
+ flash->mtd.write = sst_write;
else
-#endif
- m25p80_ops.write = m25p80_write;
+ flash->mtd.write = m25p80_write;
/* prefer "small sector" erase if possible */
if (info->flags & SECT_4K) {
flash->erase_opcode_4k = OPCODE_BE_4K;
flash->erase_opcode = OPCODE_SE;
- flash->erasesize = 4096;
+ flash->mtd.erasesize = 4096;
} else {
flash->erase_opcode = OPCODE_SE;
+ flash->mtd.erasesize = info->sector_size;
}
+ if (info->flags & M25P_NO_ERASE)
+ flash->mtd.flags |= MTD_NO_ERASE;
+
+ flash->mtd.parent = &spi->dev;
flash->page_size = info->page_size;
+ flash->sector_size = info->sector_size;
if (info->addr_width)
flash->addr_width = info->addr_width;
else {
/* enable 4-byte addressing if the device exceeds 16MiB */
- if (flash->size > 0x1000000) {
+ if (flash->mtd.size > 0x1000000) {
flash->addr_width = 4;
- set_4byte(flash, 1);
+ set_4byte(flash, info->jedec_id, 1);
} else
flash->addr_width = 3;
}
- dev_info(dev, "%s (%lld Kbytes)\n", id->name, (long long)flash->size >> 10);
+ dev_info(dev, "%s (%lld Kbytes)\n", id->name,
+ (long long)flash->mtd.size >> 10);
- if (IS_ENABLED(CONFIG_PARTITION_NEED_MTD))
- m25p_init_mtd(flash);
+ pr_debug("mtd .name = %s, .size = 0x%llx (%lldMiB) "
+ ".erasesize = 0x%.8x (%uKiB) .numeraseregions = %d\n",
+ flash->mtd.name,
+ (long long)flash->mtd.size, (long long)(flash->mtd.size >> 20),
+ flash->mtd.erasesize, flash->mtd.erasesize / 1024,
+ flash->mtd.numeraseregions);
- devfs_create(&flash->cdev);
+ if (flash->mtd.numeraseregions)
+ for (i = 0; i < flash->mtd.numeraseregions; i++)
+ pr_debug("mtd.eraseregions[%d] = { .offset = 0x%llx, "
+ ".erasesize = 0x%.8x (%uKiB), "
+ ".numblocks = %d }\n",
+ i, (long long)flash->mtd.eraseregions[i].offset,
+ flash->mtd.eraseregions[i].erasesize,
+ flash->mtd.eraseregions[i].erasesize / 1024,
+ flash->mtd.eraseregions[i].numblocks);
- return 0;
+
+
+ return add_mtd_device(&flash->mtd, flash->mtd.name);
}
-static struct driver_d epcs_flash_driver = {
- .name = "m25p",
- .probe = m25p_probe,
- .info = m25p80_info,
+static struct driver_d m25p80_driver = {
+ .name = "m25p80",
+ .probe = m25p_probe,
};
-static int epcs_init(void)
+static int m25p80_init(void)
{
- spi_register_driver(&epcs_flash_driver);
- return 0;
+ return spi_register_driver(&m25p80_driver);
}
+device_initcall(m25p80_init);
-device_initcall(epcs_init);
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Mike Lavender");
+MODULE_DESCRIPTION("MTD SPI driver for ST M25Pxx flash chips");
diff --git a/drivers/nor/Kconfig b/drivers/nor/Kconfig
index 8652d27..a3c0223 100644
--- a/drivers/nor/Kconfig
+++ b/drivers/nor/Kconfig
@@ -56,31 +56,4 @@ config CFI_BUFFER_WRITE
endif
-config MTD_M25P80
- tristate "SPI Flash chips (AT26DF, M25P, W25X, ...)"
- depends on SPI
- help
- This enables access to most modern SPI flash chips, used for
- program and data storage. Series supported include Atmel AT26DF,
- Spansion S25SL, SST 25VF, ST M25P, and Winbond W25X. Other chips
- are supported as well. See the driver source for the current list,
- or to add other chips.
-
- Note that the original DataFlash chips (AT45 series, not AT26DF),
- need an entirely different driver.
-
- Set up your spi devices with the right board-specific platform data,
- if you want to specify device partitioning or to use a device which
- doesn't support the JEDEC ID instruction.
-
-config MTD_SST25L
- tristate "Support SST25L (non JEDEC) SPI Flash chips"
- depends on MTD_M25P80
- help
- This enables access to the non JEDEC SST25L SPI flash chips, used
- for program and data storage.
-
- Set up your spi devices with the right board-specific platform data,
- if you want to specify device partitioning.
-
endmenu
diff --git a/drivers/nor/Makefile b/drivers/nor/Makefile
index d676c55..d255043 100644
--- a/drivers/nor/Makefile
+++ b/drivers/nor/Makefile
@@ -1,5 +1,4 @@
obj-$(CONFIG_DRIVER_CFI) += cfi_flash.o
obj-$(CONFIG_DRIVER_CFI_INTEL) += cfi_flash_intel.o
obj-$(CONFIG_DRIVER_CFI_AMD) += cfi_flash_amd.o
-obj-$(CONFIG_MTD_M25P80) += m25p80.o
diff --git a/drivers/nor/m25p80.h b/drivers/nor/m25p80.h
deleted file mode 100644
index 957900e..0000000
--- a/drivers/nor/m25p80.h
+++ /dev/null
@@ -1,84 +0,0 @@
-#ifndef _M25P80_H_
-#define _M25P80_H_
-
-/* Flash opcodes. */
-#define OPCODE_WREN 0x06 /* Write enable */
-#define OPCODE_RDSR 0x05 /* Read status register */
-#define OPCODE_WRSR 0x01 /* Write status register 1 byte */
-#define OPCODE_NORM_READ 0x03 /* Read data bytes (low frequency) */
-#define OPCODE_FAST_READ 0x0b /* Read data bytes (high frequency) */
-#define OPCODE_PP 0x02 /* Page program (up to 256 bytes) */
-#define OPCODE_BE_4K 0x20 /* Erase 4KiB block */
-#define OPCODE_BE_32K 0x52 /* Erase 32KiB block */
-#define OPCODE_CHIP_ERASE 0xc7 /* Erase whole flash chip */
-#define OPCODE_SE 0xd8 /* Sector erase (usually 64KiB) */
-#define OPCODE_RDID 0x9f /* Read JEDEC ID */
-
-/* Used for SST flashes only. */
-#define OPCODE_BP 0x02 /* Byte program */
-#define OPCODE_WRDI 0x04 /* Write disable */
-#define OPCODE_AAI_WP 0xad /* Auto address increment word program */
-
-/* Used for Macronix flashes only. */
-#define OPCODE_EN4B 0xb7 /* Enter 4-byte mode */
-#define OPCODE_EX4B 0xe9 /* Exit 4-byte mode */
-
-/* Status Register bits. */
-#define SR_WIP 1 /* Write in progress */
-#define SR_WEL 2 /* Write enable latch */
-/* meaning of other SR_* bits may differ between vendors */
-#define SR_BP0 4 /* Block protect 0 */
-#define SR_BP1 8 /* Block protect 1 */
-#define SR_BP2 0x10 /* Block protect 2 */
-#define SR_SRWD 0x80 /* SR write protect */
-
-/* Define max times to check status register before we give up. */
-#define MAX_READY_WAIT 40 /* M25P16 specs 40s max chip erase */
-#define MAX_CMD_SIZE 6
-
-#define SPI_NAME_SIZE 32
-
-struct spi_device_id {
- char name[SPI_NAME_SIZE];
- unsigned long driver_data;
-};
-
-struct m25p {
- struct spi_device *spi;
- struct flash_info *info;
- struct mtd_info mtd;
- struct cdev cdev;
- char *name;
- u32 erasesize;
- u32 sector_size;
- u16 page_size;
- u16 addr_width;
- u8 erase_opcode;
- u8 erase_opcode_4k;
- u8 *command;
- u32 size;
-};
-
-struct flash_info {
- /* JEDEC id zero means "no ID" (most older chips); otherwise it has
- * a high byte of zero plus three data bytes: the manufacturer id,
- * then a two byte device id.
- */
- u32 jedec_id;
- u16 ext_id;
-
- /* The size listed here is what works with OPCODE_SE, which isn't
- * necessarily called a "sector" by the vendor.
- */
- unsigned sector_size;
- u16 n_sectors;
-
- u16 page_size;
- u16 addr_width;
-
- u16 flags;
-#define SECT_4K 0x01 /* OPCODE_BE_4K works uniformly */
-#define M25P_NO_ERASE 0x02 /* No erase command needed */
-};
-
-#endif
diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h
new file mode 100644
index 0000000..793f363
--- /dev/null
+++ b/include/linux/mtd/cfi.h
@@ -0,0 +1,65 @@
+/*
+ * Copyright © 2000-2010 David Woodhouse <dwmw2@infradead.org> et al.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ */
+
+#ifndef __MTD_CFI_H__
+#define __MTD_CFI_H__
+
+/* NB: these values must represents the number of bytes needed to meet the
+ * device type (x8, x16, x32). Eg. a 32 bit device is 4 x 8 bytes.
+ * These numbers are used in calculations.
+ */
+#define CFI_DEVICETYPE_X8 (8 / 8)
+#define CFI_DEVICETYPE_X16 (16 / 8)
+#define CFI_DEVICETYPE_X32 (32 / 8)
+#define CFI_DEVICETYPE_X64 (64 / 8)
+
+
+/* Device Interface Code Assignments from the "Common Flash Memory Interface
+ * Publication 100" dated December 1, 2001.
+ */
+#define CFI_INTERFACE_X8_ASYNC 0x0000
+#define CFI_INTERFACE_X16_ASYNC 0x0001
+#define CFI_INTERFACE_X8_BY_X16_ASYNC 0x0002
+#define CFI_INTERFACE_X32_ASYNC 0x0003
+#define CFI_INTERFACE_X16_BY_X32_ASYNC 0x0005
+#define CFI_INTERFACE_NOT_ALLOWED 0xffff
+
+
+#define CFI_MFR_ANY 0xFFFF
+#define CFI_ID_ANY 0xFFFF
+#define CFI_MFR_CONTINUATION 0x007F
+
+#define CFI_MFR_AMD 0x0001
+#define CFI_MFR_AMIC 0x0037
+#define CFI_MFR_ATMEL 0x001F
+#define CFI_MFR_EON 0x001C
+#define CFI_MFR_FUJITSU 0x0004
+#define CFI_MFR_HYUNDAI 0x00AD
+#define CFI_MFR_INTEL 0x0089
+#define CFI_MFR_MACRONIX 0x00C2
+#define CFI_MFR_NEC 0x0010
+#define CFI_MFR_PMC 0x009D
+#define CFI_MFR_SAMSUNG 0x00EC
+#define CFI_MFR_SHARP 0x00B0
+#define CFI_MFR_SST 0x00BF
+#define CFI_MFR_ST 0x0020 /* STMicroelectronics */
+#define CFI_MFR_TOSHIBA 0x0098
+#define CFI_MFR_WINBOND 0x00DA
+
+#endif /* __MTD_CFI_H__ */
--
1.7.10.4
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barebox@lists.infradead.org
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^ permalink raw reply [flat|nested] 11+ messages in thread
* [PATCH 2/2] m25p80: sync flash support with the kernel
2012-10-31 12:04 ` [PATCH 1/2] " Jean-Christophe PLAGNIOL-VILLARD
@ 2012-10-31 12:04 ` Jean-Christophe PLAGNIOL-VILLARD
0 siblings, 0 replies; 11+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2012-10-31 12:04 UTC (permalink / raw)
To: barebox
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
drivers/mtd/devices/m25p80.c | 42 +++++++++++++++++++++++++++++++++---------
1 file changed, 33 insertions(+), 9 deletions(-)
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index b4ac045..428d126 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -622,6 +622,7 @@ static const struct spi_device_id m25p_ids[] = {
{ "at25fs040", INFO(0x1f6604, 0, 64 * 1024, 8, SECT_4K) },
{ "at25df041a", INFO(0x1f4401, 0, 64 * 1024, 8, SECT_4K) },
+ { "at25df321a", INFO(0x1f4701, 0, 64 * 1024, 64, SECT_4K) },
{ "at25df641", INFO(0x1f4800, 0, 64 * 1024, 128, SECT_4K) },
{ "at26f004", INFO(0x1f0400, 0, 64 * 1024, 8, SECT_4K) },
@@ -629,19 +630,29 @@ static const struct spi_device_id m25p_ids[] = {
{ "at26df161a", INFO(0x1f4601, 0, 64 * 1024, 32, SECT_4K) },
{ "at26df321", INFO(0x1f4700, 0, 64 * 1024, 64, SECT_4K) },
+ { "at45db081d", INFO(0x1f2500, 0, 64 * 1024, 16, SECT_4K) },
+
/* EON -- en25xxx */
{ "en25f32", INFO(0x1c3116, 0, 64 * 1024, 64, SECT_4K) },
{ "en25p32", INFO(0x1c2016, 0, 64 * 1024, 64, 0) },
+ { "en25q32b", INFO(0x1c3016, 0, 64 * 1024, 64, 0) },
{ "en25p64", INFO(0x1c2017, 0, 64 * 1024, 128, 0) },
+ { "en25q64", INFO(0x1c3017, 0, 64 * 1024, 128, SECT_4K) },
+
+ /* Everspin */
+ { "mr25h256", CAT25_INFO( 32 * 1024, 1, 256, 2) },
/* Intel/Numonyx -- xxxs33b */
{ "160s33b", INFO(0x898911, 0, 64 * 1024, 32, 0) },
{ "320s33b", INFO(0x898912, 0, 64 * 1024, 64, 0) },
{ "640s33b", INFO(0x898913, 0, 64 * 1024, 128, 0) },
+ { "n25q064", INFO(0x20ba17, 0, 64 * 1024, 128, 0) },
/* Macronix */
+ { "mx25l2005a", INFO(0xc22012, 0, 64 * 1024, 4, SECT_4K) },
{ "mx25l4005a", INFO(0xc22013, 0, 64 * 1024, 8, SECT_4K) },
{ "mx25l8005", INFO(0xc22014, 0, 64 * 1024, 16, 0) },
+ { "mx25l1606e", INFO(0xc22015, 0, 64 * 1024, 32, SECT_4K) },
{ "mx25l3205d", INFO(0xc22016, 0, 64 * 1024, 64, 0) },
{ "mx25l6405d", INFO(0xc22017, 0, 64 * 1024, 128, 0) },
{ "mx25l12805d", INFO(0xc22018, 0, 64 * 1024, 256, 0) },
@@ -649,19 +660,28 @@ static const struct spi_device_id m25p_ids[] = {
{ "mx25l25635e", INFO(0xc22019, 0, 64 * 1024, 512, 0) },
{ "mx25l25655e", INFO(0xc22619, 0, 64 * 1024, 512, 0) },
+ /* Micron */
+ { "n25q128", INFO(0x20ba18, 0, 64 * 1024, 256, 0) },
+ { "n25q256a", INFO(0x20ba19, 0, 64 * 1024, 512, SECT_4K) },
+
/* Spansion -- single (large) sector size only, at least
* for the chips listed here (without boot sectors).
*/
+ { "s25sl032p", INFO(0x010215, 0x4d00, 64 * 1024, 64, 0) },
+ { "s25sl064p", INFO(0x010216, 0x4d00, 64 * 1024, 128, 0) },
+ { "s25fl256s0", INFO(0x010219, 0x4d00, 256 * 1024, 128, 0) },
+ { "s25fl256s1", INFO(0x010219, 0x4d01, 64 * 1024, 512, 0) },
+ { "s25fl512s", INFO(0x010220, 0x4d00, 256 * 1024, 256, 0) },
+ { "s70fl01gs", INFO(0x010221, 0x4d00, 256 * 1024, 256, 0) },
+ { "s25sl12800", INFO(0x012018, 0x0300, 256 * 1024, 64, 0) },
+ { "s25sl12801", INFO(0x012018, 0x0301, 64 * 1024, 256, 0) },
+ { "s25fl129p0", INFO(0x012018, 0x4d00, 256 * 1024, 64, 0) },
+ { "s25fl129p1", INFO(0x012018, 0x4d01, 64 * 1024, 256, 0) },
{ "s25sl004a", INFO(0x010212, 0, 64 * 1024, 8, 0) },
{ "s25sl008a", INFO(0x010213, 0, 64 * 1024, 16, 0) },
{ "s25sl016a", INFO(0x010214, 0, 64 * 1024, 32, 0) },
{ "s25sl032a", INFO(0x010215, 0, 64 * 1024, 64, 0) },
- { "s25sl032p", INFO(0x010215, 0x4d00, 64 * 1024, 64, SECT_4K) },
{ "s25sl064a", INFO(0x010216, 0, 64 * 1024, 128, 0) },
- { "s25sl12800", INFO(0x012018, 0x0300, 256 * 1024, 64, 0) },
- { "s25sl12801", INFO(0x012018, 0x0301, 64 * 1024, 256, 0) },
- { "s25fl129p0", INFO(0x012018, 0x4d00, 256 * 1024, 64, 0) },
- { "s25fl129p1", INFO(0x012018, 0x4d01, 64 * 1024, 256, 0) },
{ "s25fl016k", INFO(0xef4015, 0, 64 * 1024, 32, SECT_4K) },
{ "s25fl064k", INFO(0xef4017, 0, 64 * 1024, 128, SECT_4K) },
@@ -685,6 +705,7 @@ static const struct spi_device_id m25p_ids[] = {
{ "m25p32", INFO(0x202016, 0, 64 * 1024, 64, 0) },
{ "m25p64", INFO(0x202017, 0, 64 * 1024, 128, 0) },
{ "m25p128", INFO(0x202018, 0, 256 * 1024, 64, 0) },
+ { "n25q032", INFO(0x20ba16, 0, 64 * 1024, 64, 0) },
{ "m25p05-nonjedec", INFO(0, 0, 32 * 1024, 2, 0) },
{ "m25p10-nonjedec", INFO(0, 0, 32 * 1024, 4, 0) },
@@ -700,10 +721,14 @@ static const struct spi_device_id m25p_ids[] = {
{ "m45pe80", INFO(0x204014, 0, 64 * 1024, 16, 0) },
{ "m45pe16", INFO(0x204015, 0, 64 * 1024, 32, 0) },
+ { "m25pe20", INFO(0x208012, 0, 64 * 1024, 4, 0) },
{ "m25pe80", INFO(0x208014, 0, 64 * 1024, 16, 0) },
{ "m25pe16", INFO(0x208015, 0, 64 * 1024, 32, SECT_4K) },
- { "m25px64", INFO(0x207117, 0, 64 * 1024, 128, 0) },
+ { "m25px32", INFO(0x207116, 0, 64 * 1024, 64, SECT_4K) },
+ { "m25px32-s0", INFO(0x207316, 0, 64 * 1024, 64, SECT_4K) },
+ { "m25px32-s1", INFO(0x206316, 0, 64 * 1024, 64, SECT_4K) },
+ { "m25px64", INFO(0x207117, 0, 64 * 1024, 128, 0) },
/* Winbond -- w25x "blocks" are 64K, "sectors" are 4KiB */
{ "w25x10", INFO(0xef3011, 0, 64 * 1024, 2, SECT_4K) },
@@ -713,8 +738,10 @@ static const struct spi_device_id m25p_ids[] = {
{ "w25x16", INFO(0xef3015, 0, 64 * 1024, 32, SECT_4K) },
{ "w25x32", INFO(0xef3016, 0, 64 * 1024, 64, SECT_4K) },
{ "w25q32", INFO(0xef4016, 0, 64 * 1024, 64, SECT_4K) },
+ { "w25q32dw", INFO(0xef6016, 0, 64 * 1024, 64, SECT_4K) },
{ "w25x64", INFO(0xef3017, 0, 64 * 1024, 128, SECT_4K) },
{ "w25q64", INFO(0xef4017, 0, 64 * 1024, 128, SECT_4K) },
+ { "w25q80", INFO(0xef5014, 0, 64 * 1024, 16, SECT_4K) },
/* Catalyst / On Semiconductor -- non-JEDEC */
{ "cat25c11", CAT25_INFO( 16, 8, 16, 1) },
@@ -722,9 +749,6 @@ static const struct spi_device_id m25p_ids[] = {
{ "cat25c09", CAT25_INFO( 128, 8, 32, 2) },
{ "cat25c17", CAT25_INFO( 256, 8, 32, 2) },
{ "cat25128", CAT25_INFO(2048, 8, 64, 2) },
-
- /* Micron */
- { "n25q128", INFO(0x20ba18, 0, 64 * 1024, 256, 0) },
{ },
};
--
1.7.10.4
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^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH 0/2] m25p80: re-import it againt mtd_add_host
2012-10-31 12:01 [PATCH 0/2] m25p80: re-import it againt mtd_add_host Jean-Christophe PLAGNIOL-VILLARD
2012-10-31 12:04 ` [PATCH 1/2] " Jean-Christophe PLAGNIOL-VILLARD
@ 2012-10-31 21:29 ` Sascha Hauer
2012-11-01 9:32 ` Jean-Christophe PLAGNIOL-VILLARD
2012-11-01 9:33 ` [PATCH 1/1] mtd: introduce mtd_block_isbad Jean-Christophe PLAGNIOL-VILLARD
2012-11-15 10:11 ` [PATCH 0/2] m25p80: re-import it againt mtd_add_host Jean-Christophe PLAGNIOL-VILLARD
3 siblings, 1 reply; 11+ messages in thread
From: Sascha Hauer @ 2012-10-31 21:29 UTC (permalink / raw)
To: Jean-Christophe PLAGNIOL-VILLARD; +Cc: barebox
On Wed, Oct 31, 2012 at 01:01:22PM +0100, Jean-Christophe PLAGNIOL-VILLARD wrote:
> Hi,
>
> so we now create the cdev via mtd
>
> This will also simplify sync with linux
>
> to avoid the m25p8000 or m25p00 the cdev is still named name m25p and the
> drivers m25p80
>
> sync with linux too
>
> this patch series is agianst mtd_dataflash support
>
> The following changes since commit 9428c386f876fa3a8871eeea4725a805cea5c367:
>
> mtd: add dataflash support (2012-10-31 04:48:39 +0800)
>
> are available in the git repository at:
>
> git://git.jcrosoft.org/barebox.git delivery/m25p80
Sometimes I get the feeling that you do this only to break other peoples
setup:
barebox@Sabre Lite:/ saveenv
saving environment
prefetch abort
pc : [<00000004>] lr : [<4fc099eb>]
sp : 4bbff8e0 ip : 00000000 fp : 00000000
r10: 00000000 r9 : 00000000 r8 : 00000000
r7 : 00080000 r6 : 4bbff8e0 r5 : 00080000 r4 : 4bc0bc68
r3 : 00000000 r2 : 00080000 r1 : 00000000 r0 : 4bc0bc68
Flags: nZCv IRQs off FIQs off Mode SVC_32
[<4fc099eb>] (mtd_erase+0x2b/0x60) from [<4fc157cd>] (devfs_erase+0x41/0x54)
[<4fc157cd>] (devfs_erase+0x41/0x54) from [<4fc1716f>] (erase+0x6f/0x8c)
[<4fc1716f>] (erase+0x6f/0x8c) from [<4fc0e307>] (do_saveenv+0x7b/0x100)
[<4fc0e307>] (do_saveenv+0x7b/0x100) from [<4fc0588d>] (execute_command+0x21/0x4c)
[<4fc0588d>] (execute_command+0x21/0x4c) from [<4fc0317d>] (run_list_real+0x629/0x704)
[<4fc0317d>] (run_list_real+0x629/0x704) from [<4fc03339>] (parse_stream_outer+0xe1/0x190)
[<4fc03339>] (parse_stream_outer+0xe1/0x190) from [<4fc0357b>] (run_shell+0x23/0x54)
[<4fc0357b>] (run_shell+0x23/0x54) from [<4fc0588d>] (execute_command+0x21/0x4c)
[<4fc0588d>] (execute_command+0x21/0x4c) from [<4fc0317d>] (run_list_real+0x629/0x704)
[<4fc0317d>] (run_list_real+0x629/0x704) from [<4fc02e1d>] (run_list_real+0x2c9/0x704)
[<4fc1b37d>] (unwind_backtrace+0x1/0x64) from [<4fc0f635>] (panic+0x1d/0x2c)
[<4fc0f635>] (panic+0x1d/0x2c) from [<4fc1b761>] (do_exception+0xd/0x10)
[<4fc1b761>] (do_exception+0xd/0x10) from [<4fc1b7a5>] (do_prefetch_abort+0x11/0x14)
[<4fc1b7a5>] (do_prefetch_abort+0x11/0x14) from [<4fc1b510>] (prefetch_abort+0x50/0x60)
This is because you haven't provided a mtd->block_isbad callback. Instead
we have an empty m25p_oob0 device for a flash which cannot have bad blocks
at all. Have you ever done basic tests with this driver? This really
does not motivate me to take a 40k patch.
Sascha
--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH 0/2] m25p80: re-import it againt mtd_add_host
2012-10-31 21:29 ` [PATCH 0/2] m25p80: re-import it againt mtd_add_host Sascha Hauer
@ 2012-11-01 9:32 ` Jean-Christophe PLAGNIOL-VILLARD
0 siblings, 0 replies; 11+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2012-11-01 9:32 UTC (permalink / raw)
To: Sascha Hauer; +Cc: barebox
On 22:29 Wed 31 Oct , Sascha Hauer wrote:
> On Wed, Oct 31, 2012 at 01:01:22PM +0100, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > Hi,
> >
> > so we now create the cdev via mtd
> >
> > This will also simplify sync with linux
> >
> > to avoid the m25p8000 or m25p00 the cdev is still named name m25p and the
> > drivers m25p80
> >
> > sync with linux too
> >
> > this patch series is agianst mtd_dataflash support
> >
> > The following changes since commit 9428c386f876fa3a8871eeea4725a805cea5c367:
> >
> > mtd: add dataflash support (2012-10-31 04:48:39 +0800)
> >
> > are available in the git repository at:
> >
> > git://git.jcrosoft.org/barebox.git delivery/m25p80
>
> Sometimes I get the feeling that you do this only to break other peoples
> setup:
I forget to include a fix from my next
I send it and re pushed the brnach
The following changes since commit 9bd9176fdafac1566107da3f3a0ed55094907d91:
mtd: dataflash: fix spi_transfer init (2012-11-01 02:22:22 +0800)
are available in the git repository at:
git://git.jcrosoft.org/barebox.git delivery/m25p80
for you to fetch changes up to 3b672b01bb8bba0c61886bdcb85b70009673372d:
m25p80: sync flash support with the kernel (2012-11-01 02:22:28 +0800)
----------------------------------------------------------------
Jean-Christophe PLAGNIOL-VILLARD (3):
mtd: introduce mtd_block_isbad
m25p80: re-import it againt mtd_add_host
m25p80: sync flash support with the kernel
arch/arm/boards/freescale-mx6-sabrelite/board.c | 2 +-
drivers/mtd/core.c | 13 +++++-
drivers/mtd/devices/Kconfig | 27 ++++++++++++
drivers/mtd/devices/Makefile | 1 +
drivers/{nor => mtd/devices}/m25p80.c | 512 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----------------------------------------------------------------------------------------------------
drivers/mtd/mtdraw.c | 2 +-
drivers/mtd/partition.c | 2 +-
drivers/mtd/ubi/io.c | 2 +-
drivers/nor/Kconfig | 27 ------------
drivers/nor/Makefile | 1 -
drivers/nor/m25p80.h | 84 ------------------------------------
include/linux/mtd/cfi.h | 65 ++++++++++++++++++++++++++++
include/linux/mtd/mtd.h | 2 +
13 files changed, 387 insertions(+), 353 deletions(-)
rename drivers/{nor => mtd/devices}/m25p80.c (65%)
delete mode 100644 drivers/nor/m25p80.h
create mode 100644 include/linux/mtd/cfi.h
Best Regards,
J.
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^ permalink raw reply [flat|nested] 11+ messages in thread
* [PATCH 1/1] mtd: introduce mtd_block_isbad
2012-10-31 12:01 [PATCH 0/2] m25p80: re-import it againt mtd_add_host Jean-Christophe PLAGNIOL-VILLARD
2012-10-31 12:04 ` [PATCH 1/2] " Jean-Christophe PLAGNIOL-VILLARD
2012-10-31 21:29 ` [PATCH 0/2] m25p80: re-import it againt mtd_add_host Sascha Hauer
@ 2012-11-01 9:33 ` Jean-Christophe PLAGNIOL-VILLARD
2012-11-15 10:11 ` [PATCH 0/2] m25p80: re-import it againt mtd_add_host Jean-Christophe PLAGNIOL-VILLARD
3 siblings, 0 replies; 11+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2012-11-01 9:33 UTC (permalink / raw)
To: barebox
this allow to do not provide block_isbad at mtd driver level
as example spi flash
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
---
drivers/mtd/core.c | 13 +++++++++++--
drivers/mtd/mtdraw.c | 2 +-
drivers/mtd/partition.c | 2 +-
drivers/mtd/ubi/io.c | 2 +-
include/linux/mtd/mtd.h | 2 ++
5 files changed, 16 insertions(+), 5 deletions(-)
diff --git a/drivers/mtd/core.c b/drivers/mtd/core.c
index 7c323a1..0139851 100644
--- a/drivers/mtd/core.c
+++ b/drivers/mtd/core.c
@@ -30,6 +30,15 @@
static LIST_HEAD(mtd_register_hooks);
+int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs)
+{
+ if (!mtd->block_isbad)
+ return 0;
+ if (ofs < 0 || ofs > mtd->size)
+ return -EINVAL;
+ return mtd->block_isbad(mtd, ofs);
+}
+
static ssize_t mtd_read(struct cdev *cdev, void* buf, size_t count,
loff_t _offset, ulong flags)
{
@@ -130,7 +139,7 @@ int mtd_ioctl(struct cdev *cdev, int request, void *buf)
switch (request) {
case MEMGETBADBLOCK:
dev_dbg(cdev->dev, "MEMGETBADBLOCK: 0x%08llx\n", *offset);
- ret = mtd->block_isbad(mtd, *offset);
+ ret = mtd_block_isbad(mtd, *offset);
break;
#ifdef CONFIG_MTD_WRITE
case MEMSETBADBLOCK:
@@ -189,7 +198,7 @@ static int mtd_erase(struct cdev *cdev, size_t count, loff_t offset)
while (count > 0) {
dev_dbg(cdev->dev, "erase %d %d\n", erase.addr, erase.len);
- ret = mtd->block_isbad(mtd, erase.addr);
+ ret = mtd_block_isbad(mtd, erase.addr);
if (ret > 0) {
printf("Skipping bad block at 0x%08x\n", erase.addr);
} else {
diff --git a/drivers/mtd/mtdraw.c b/drivers/mtd/mtdraw.c
index 079575c..ec77692 100644
--- a/drivers/mtd/mtdraw.c
+++ b/drivers/mtd/mtdraw.c
@@ -241,7 +241,7 @@ static int mtdraw_erase(struct cdev *cdev, size_t count, loff_t _offset)
while (count > 0) {
debug("erase %d %d\n", erase.addr, erase.len);
- ret = mtd->block_isbad(mtd, erase.addr);
+ ret = mtd_block_isbad(mtd, erase.addr);
if (ret > 0) {
printf("Skipping bad block at 0x%08x\n", erase.addr);
} else {
diff --git a/drivers/mtd/partition.c b/drivers/mtd/partition.c
index df2eb40..85f486d 100644
--- a/drivers/mtd/partition.c
+++ b/drivers/mtd/partition.c
@@ -71,7 +71,7 @@ static int mtd_part_block_isbad(struct mtd_info *mtd, loff_t ofs)
if (ofs >= mtd->size)
return -EINVAL;
ofs += part->offset;
- return part->master->block_isbad(part->master, ofs);
+ return mtd_block_isbad(part->master, ofs);
}
static int mtd_part_block_markbad(struct mtd_info *mtd, loff_t ofs)
diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c
index da38837..e3598b9 100644
--- a/drivers/mtd/ubi/io.c
+++ b/drivers/mtd/ubi/io.c
@@ -513,7 +513,7 @@ int ubi_io_is_bad(const struct ubi_device *ubi, int pnum)
if (ubi->bad_allowed) {
int ret;
- ret = mtd->block_isbad(mtd, (loff_t)pnum * ubi->peb_size);
+ ret = mtd_block_isbad(mtd, (loff_t)pnum * ubi->peb_size);
if (ret < 0)
ubi_err("error %d while checking if PEB %d is bad",
ret, pnum);
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 71d3c6f..5db884c 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -251,6 +251,8 @@ static inline void mtd_erase_callback(struct erase_info *instr)
}
#endif
+int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs);
+
/*
* Debugging macro and defines
*/
--
1.7.10.4
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^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH 0/2] m25p80: re-import it againt mtd_add_host
2012-10-31 12:01 [PATCH 0/2] m25p80: re-import it againt mtd_add_host Jean-Christophe PLAGNIOL-VILLARD
` (2 preceding siblings ...)
2012-11-01 9:33 ` [PATCH 1/1] mtd: introduce mtd_block_isbad Jean-Christophe PLAGNIOL-VILLARD
@ 2012-11-15 10:11 ` Jean-Christophe PLAGNIOL-VILLARD
2012-11-16 20:16 ` Jean-Christophe PLAGNIOL-VILLARD
2012-11-20 8:41 ` Sascha Hauer
3 siblings, 2 replies; 11+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2012-11-15 10:11 UTC (permalink / raw)
To: barebox
ping
work on next
On 13:01 Wed 31 Oct , Jean-Christophe PLAGNIOL-VILLARD wrote:
> Hi,
>
> so we now create the cdev via mtd
>
> This will also simplify sync with linux
>
> to avoid the m25p8000 or m25p00 the cdev is still named name m25p and the
> drivers m25p80
>
> sync with linux too
>
> this patch series is agianst mtd_dataflash support
>
> The following changes since commit 9428c386f876fa3a8871eeea4725a805cea5c367:
>
> mtd: add dataflash support (2012-10-31 04:48:39 +0800)
>
> are available in the git repository at:
>
> git://git.jcrosoft.org/barebox.git delivery/m25p80
>
> for you to fetch changes up to 35b8b98230dbcfe25973d5ed52a874027b4f3f05:
>
> m25p80: sync flash support with the kernel (2012-10-31 04:51:08 +0800)
>
> ----------------------------------------------------------------
> Jean-Christophe PLAGNIOL-VILLARD (2):
> m25p80: re-import it againt mtd_add_host
> m25p80: sync flash support with the kernel
>
> arch/arm/boards/freescale-mx6-sabrelite/board.c | 2 +-
> drivers/mtd/devices/Kconfig | 27 ++++++++++++
> drivers/mtd/devices/Makefile | 1 +
> drivers/{nor => mtd/devices}/m25p80.c | 512 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----------------------------------------------------------------------------------------------------
> drivers/nor/Kconfig | 27 ------------
> drivers/nor/Makefile | 1 -
> drivers/nor/m25p80.h | 84 ------------------------------------
> include/linux/mtd/cfi.h | 65 ++++++++++++++++++++++++++++
> 8 files changed, 371 insertions(+), 348 deletions(-)
> rename drivers/{nor => mtd/devices}/m25p80.c (65%)
> delete mode 100644 drivers/nor/m25p80.h
> create mode 100644 include/linux/mtd/cfi.h
>
> Best Regards,
> J.
>
> _______________________________________________
> barebox mailing list
> barebox@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/barebox
_______________________________________________
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http://lists.infradead.org/mailman/listinfo/barebox
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH 0/2] m25p80: re-import it againt mtd_add_host
2012-11-15 10:11 ` [PATCH 0/2] m25p80: re-import it againt mtd_add_host Jean-Christophe PLAGNIOL-VILLARD
@ 2012-11-16 20:16 ` Jean-Christophe PLAGNIOL-VILLARD
2012-11-20 8:41 ` Sascha Hauer
1 sibling, 0 replies; 11+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2012-11-16 20:16 UTC (permalink / raw)
To: barebox
HI,
just retested on master on sam9x5ek work fine
can you check on sabrelite too
Best Regards,
J.
On 11:11 Thu 15 Nov , Jean-Christophe PLAGNIOL-VILLARD wrote:
> ping
>
> work on next
> On 13:01 Wed 31 Oct , Jean-Christophe PLAGNIOL-VILLARD wrote:
> > Hi,
> >
> > so we now create the cdev via mtd
> >
> > This will also simplify sync with linux
> >
> > to avoid the m25p8000 or m25p00 the cdev is still named name m25p and the
> > drivers m25p80
> >
> > sync with linux too
> >
> > this patch series is agianst mtd_dataflash support
> >
> > The following changes since commit 9428c386f876fa3a8871eeea4725a805cea5c367:
> >
> > mtd: add dataflash support (2012-10-31 04:48:39 +0800)
> >
> > are available in the git repository at:
> >
> > git://git.jcrosoft.org/barebox.git delivery/m25p80
> >
> > for you to fetch changes up to 35b8b98230dbcfe25973d5ed52a874027b4f3f05:
> >
> > m25p80: sync flash support with the kernel (2012-10-31 04:51:08 +0800)
> >
> > ----------------------------------------------------------------
> > Jean-Christophe PLAGNIOL-VILLARD (2):
> > m25p80: re-import it againt mtd_add_host
> > m25p80: sync flash support with the kernel
> >
> > arch/arm/boards/freescale-mx6-sabrelite/board.c | 2 +-
> > drivers/mtd/devices/Kconfig | 27 ++++++++++++
> > drivers/mtd/devices/Makefile | 1 +
> > drivers/{nor => mtd/devices}/m25p80.c | 512 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----------------------------------------------------------------------------------------------------
> > drivers/nor/Kconfig | 27 ------------
> > drivers/nor/Makefile | 1 -
> > drivers/nor/m25p80.h | 84 ------------------------------------
> > include/linux/mtd/cfi.h | 65 ++++++++++++++++++++++++++++
> > 8 files changed, 371 insertions(+), 348 deletions(-)
> > rename drivers/{nor => mtd/devices}/m25p80.c (65%)
> > delete mode 100644 drivers/nor/m25p80.h
> > create mode 100644 include/linux/mtd/cfi.h
> >
> > Best Regards,
> > J.
> >
> > _______________________________________________
> > barebox mailing list
> > barebox@lists.infradead.org
> > http://lists.infradead.org/mailman/listinfo/barebox
>
> _______________________________________________
> barebox mailing list
> barebox@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/barebox
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH 0/2] m25p80: re-import it againt mtd_add_host
2012-11-15 10:11 ` [PATCH 0/2] m25p80: re-import it againt mtd_add_host Jean-Christophe PLAGNIOL-VILLARD
2012-11-16 20:16 ` Jean-Christophe PLAGNIOL-VILLARD
@ 2012-11-20 8:41 ` Sascha Hauer
2012-11-20 12:37 ` Jean-Christophe PLAGNIOL-VILLARD
1 sibling, 1 reply; 11+ messages in thread
From: Sascha Hauer @ 2012-11-20 8:41 UTC (permalink / raw)
To: Jean-Christophe PLAGNIOL-VILLARD; +Cc: barebox
On Thu, Nov 15, 2012 at 11:11:50AM +0100, Jean-Christophe PLAGNIOL-VILLARD wrote:
> ping
>
> work on next
> On 13:01 Wed 31 Oct , Jean-Christophe PLAGNIOL-VILLARD wrote:
> > Hi,
> >
> > so we now create the cdev via mtd
> >
> > This will also simplify sync with linux
> >
> > to avoid the m25p8000 or m25p00 the cdev is still named name m25p and the
> > drivers m25p80
> >
> > sync with linux too
> >
> > this patch series is agianst mtd_dataflash support
> >
> > The following changes since commit 9428c386f876fa3a8871eeea4725a805cea5c367:
> >
> > mtd: add dataflash support (2012-10-31 04:48:39 +0800)
> >
> > are available in the git repository at:
> >
> > git://git.jcrosoft.org/barebox.git delivery/m25p80
Applied, thanks
Sascha
> >
> > for you to fetch changes up to 35b8b98230dbcfe25973d5ed52a874027b4f3f05:
> >
> > m25p80: sync flash support with the kernel (2012-10-31 04:51:08 +0800)
> >
> > ----------------------------------------------------------------
> > Jean-Christophe PLAGNIOL-VILLARD (2):
> > m25p80: re-import it againt mtd_add_host
> > m25p80: sync flash support with the kernel
> >
> > arch/arm/boards/freescale-mx6-sabrelite/board.c | 2 +-
> > drivers/mtd/devices/Kconfig | 27 ++++++++++++
> > drivers/mtd/devices/Makefile | 1 +
> > drivers/{nor => mtd/devices}/m25p80.c | 512 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----------------------------------------------------------------------------------------------------
> > drivers/nor/Kconfig | 27 ------------
> > drivers/nor/Makefile | 1 -
> > drivers/nor/m25p80.h | 84 ------------------------------------
> > include/linux/mtd/cfi.h | 65 ++++++++++++++++++++++++++++
> > 8 files changed, 371 insertions(+), 348 deletions(-)
> > rename drivers/{nor => mtd/devices}/m25p80.c (65%)
> > delete mode 100644 drivers/nor/m25p80.h
> > create mode 100644 include/linux/mtd/cfi.h
> >
> > Best Regards,
> > J.
> >
> > _______________________________________________
> > barebox mailing list
> > barebox@lists.infradead.org
> > http://lists.infradead.org/mailman/listinfo/barebox
>
> _______________________________________________
> barebox mailing list
> barebox@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/barebox
>
--
Pengutronix e.K. | |
Industrial Linux Solutions | http://www.pengutronix.de/ |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
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^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH 0/2] m25p80: re-import it againt mtd_add_host
2012-11-20 8:41 ` Sascha Hauer
@ 2012-11-20 12:37 ` Jean-Christophe PLAGNIOL-VILLARD
2012-11-20 14:34 ` Jean-Christophe PLAGNIOL-VILLARD
0 siblings, 1 reply; 11+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2012-11-20 12:37 UTC (permalink / raw)
To: Sascha Hauer; +Cc: barebox
On 09:41 Tue 20 Nov , Sascha Hauer wrote:
> On Thu, Nov 15, 2012 at 11:11:50AM +0100, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > ping
> >
> > work on next
> > On 13:01 Wed 31 Oct , Jean-Christophe PLAGNIOL-VILLARD wrote:
> > > Hi,
> > >
> > > so we now create the cdev via mtd
> > >
> > > This will also simplify sync with linux
> > >
> > > to avoid the m25p8000 or m25p00 the cdev is still named name m25p and the
> > > drivers m25p80
> > >
> > > sync with linux too
> > >
> > > this patch series is agianst mtd_dataflash support
> > >
> > > The following changes since commit 9428c386f876fa3a8871eeea4725a805cea5c367:
> > >
> > > mtd: add dataflash support (2012-10-31 04:48:39 +0800)
> > >
> > > are available in the git repository at:
> > >
> > > git://git.jcrosoft.org/barebox.git delivery/m25p80
>
> Applied, thanks
can we have this one on master it's there for a while
Best Regards,
J.
>
> Sascha
>
> > >
> > > for you to fetch changes up to 35b8b98230dbcfe25973d5ed52a874027b4f3f05:
> > >
> > > m25p80: sync flash support with the kernel (2012-10-31 04:51:08 +0800)
> > >
> > > ----------------------------------------------------------------
> > > Jean-Christophe PLAGNIOL-VILLARD (2):
> > > m25p80: re-import it againt mtd_add_host
> > > m25p80: sync flash support with the kernel
> > >
> > > arch/arm/boards/freescale-mx6-sabrelite/board.c | 2 +-
> > > drivers/mtd/devices/Kconfig | 27 ++++++++++++
> > > drivers/mtd/devices/Makefile | 1 +
> > > drivers/{nor => mtd/devices}/m25p80.c | 512 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++----------------------------------------------------------------------------------------------------
> > > drivers/nor/Kconfig | 27 ------------
> > > drivers/nor/Makefile | 1 -
> > > drivers/nor/m25p80.h | 84 ------------------------------------
> > > include/linux/mtd/cfi.h | 65 ++++++++++++++++++++++++++++
> > > 8 files changed, 371 insertions(+), 348 deletions(-)
> > > rename drivers/{nor => mtd/devices}/m25p80.c (65%)
> > > delete mode 100644 drivers/nor/m25p80.h
> > > create mode 100644 include/linux/mtd/cfi.h
> > >
> > > Best Regards,
> > > J.
> > >
> > > _______________________________________________
> > > barebox mailing list
> > > barebox@lists.infradead.org
> > > http://lists.infradead.org/mailman/listinfo/barebox
> >
> > _______________________________________________
> > barebox mailing list
> > barebox@lists.infradead.org
> > http://lists.infradead.org/mailman/listinfo/barebox
> >
>
> --
> Pengutronix e.K. | |
> Industrial Linux Solutions | http://www.pengutronix.de/ |
> Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 |
> Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |
_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox
^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: [PATCH 0/2] m25p80: re-import it againt mtd_add_host
2012-11-20 12:37 ` Jean-Christophe PLAGNIOL-VILLARD
@ 2012-11-20 14:34 ` Jean-Christophe PLAGNIOL-VILLARD
0 siblings, 0 replies; 11+ messages in thread
From: Jean-Christophe PLAGNIOL-VILLARD @ 2012-11-20 14:34 UTC (permalink / raw)
To: Sascha Hauer; +Cc: barebox
On 13:37 Tue 20 Nov , Jean-Christophe PLAGNIOL-VILLARD wrote:
> On 09:41 Tue 20 Nov , Sascha Hauer wrote:
> > On Thu, Nov 15, 2012 at 11:11:50AM +0100, Jean-Christophe PLAGNIOL-VILLARD wrote:
> > > ping
> > >
> > > work on next
> > > On 13:01 Wed 31 Oct , Jean-Christophe PLAGNIOL-VILLARD wrote:
> > > > Hi,
> > > >
> > > > so we now create the cdev via mtd
> > > >
> > > > This will also simplify sync with linux
> > > >
> > > > to avoid the m25p8000 or m25p00 the cdev is still named name m25p and the
> > > > drivers m25p80
> > > >
> > > > sync with linux too
> > > >
> > > > this patch series is agianst mtd_dataflash support
> > > >
> > > > The following changes since commit 9428c386f876fa3a8871eeea4725a805cea5c367:
> > > >
> > > > mtd: add dataflash support (2012-10-31 04:48:39 +0800)
> > > >
> > > > are available in the git repository at:
> > > >
> > > > git://git.jcrosoft.org/barebox.git delivery/m25p80
> >
> > Applied, thanks
> can we have this one on master it's there for a while
And I need on sam9x5ek to have the spi flash
with 2012.12 we will do an official release on linux4sam
Best Regards,
J.
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barebox mailing list
barebox@lists.infradead.org
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^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2012-11-20 14:36 UTC | newest]
Thread overview: 11+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2012-10-31 12:01 [PATCH 0/2] m25p80: re-import it againt mtd_add_host Jean-Christophe PLAGNIOL-VILLARD
2012-10-31 12:04 ` [PATCH 1/2] " Jean-Christophe PLAGNIOL-VILLARD
2012-10-31 12:04 ` [PATCH 2/2] m25p80: sync flash support with the kernel Jean-Christophe PLAGNIOL-VILLARD
2012-10-31 21:29 ` [PATCH 0/2] m25p80: re-import it againt mtd_add_host Sascha Hauer
2012-11-01 9:32 ` Jean-Christophe PLAGNIOL-VILLARD
2012-11-01 9:33 ` [PATCH 1/1] mtd: introduce mtd_block_isbad Jean-Christophe PLAGNIOL-VILLARD
2012-11-15 10:11 ` [PATCH 0/2] m25p80: re-import it againt mtd_add_host Jean-Christophe PLAGNIOL-VILLARD
2012-11-16 20:16 ` Jean-Christophe PLAGNIOL-VILLARD
2012-11-20 8:41 ` Sascha Hauer
2012-11-20 12:37 ` Jean-Christophe PLAGNIOL-VILLARD
2012-11-20 14:34 ` Jean-Christophe PLAGNIOL-VILLARD
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