Hi Jagannadha
On Thu, Jan 3, 2013 at 6:51 AM, Jagannadha Sutradharudu Teki jagannadh.teki@gmail.com wrote:
This patch provides support to read a flash status register.
Status register contains a control bits used to verify the progress of flash program and erase operations.
User need to get the data through spi_flash_cmd_read_status() based on their usage.
Do you have a console command for this, and the control register also?
Regards, Simon
Signed-off-by: Jagannadha Sutradharudu Teki jagannadh.teki@gmail.com
Changes in v3: improved coding style
drivers/mtd/spi/spi_flash.c | 8 ++++++++ drivers/mtd/spi/spi_flash_internal.h | 3 +++ 2 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/drivers/mtd/spi/spi_flash.c b/drivers/mtd/spi/spi_flash.c index 9e8939c..0f05b91 100644 --- a/drivers/mtd/spi/spi_flash.c +++ b/drivers/mtd/spi/spi_flash.c @@ -264,6 +264,14 @@ int spi_flash_cmd_write_status(struct spi_flash *flash, u8 sr) return 0; }
+int spi_flash_cmd_read_status(struct spi_flash *flash, void *data) +{
u8 cmd;cmd = CMD_READ_STATUS;return spi_flash_read_common(flash, &cmd, sizeof(cmd), (void *)data, 1);+}
/*
- The following table holds all device probe functions
diff --git a/drivers/mtd/spi/spi_flash_internal.h b/drivers/mtd/spi/spi_flash_internal.h index 141cfa8..8232595 100644 --- a/drivers/mtd/spi/spi_flash_internal.h +++ b/drivers/mtd/spi/spi_flash_internal.h @@ -77,6 +77,9 @@ static inline int spi_flash_cmd_write_disable(struct spi_flash *flash) /* Program the status register. */ int spi_flash_cmd_write_status(struct spi_flash *flash, u8 sr);
+/* Read the status register */ +int spi_flash_cmd_read_status(struct spi_flash *flash, void *data);
/*
- Same as spi_flash_cmd_read() except it also claims/releases the SPI
- bus. Used as common part of the ->read() operation.
-- 1.7.0.4
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