diff options
| author | Boris Brezillon <boris.brezillon@bootlin.com> | 2019-07-30 10:56:53 +0200 |
|---|---|---|
| committer | Tudor Ambarus <tudor.ambarus@microchip.com> | 2019-08-28 11:40:30 +0200 |
| commit | ad3bba06b63697fd47525a13d29e8ac0312b0302 (patch) | |
| tree | ce76e7f61efac373a9d726800685885209d4ea01 /drivers/mtd/spi-nor | |
| parent | mtd: spi-nor: Add s3an_post_sfdp_fixups() (diff) | |
| download | linux-ad3bba06b63697fd47525a13d29e8ac0312b0302.tar.xz linux-ad3bba06b63697fd47525a13d29e8ac0312b0302.zip | |
mtd: spi-nor: Add the SPI_NOR_XSR_RDY flag
S3AN flashes use a specific opcode to read the status register.
We currently use the SPI_S3AN flag to decide whether this specific
SR read opcode should be used, but SPI_S3AN is about to disappear, so
let's add a new flag.
Note that we use the same bit as SPI_S3AN implies SPI_NOR_XSR_RDY and
vice versa.
Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Vignesh Raghavendra <vigneshr@ti.com>
Diffstat (limited to 'drivers/mtd/spi-nor')
| -rw-r--r-- | drivers/mtd/spi-nor/spi-nor.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c index 3fea085cd055..0aee1232ad3d 100644 --- a/drivers/mtd/spi-nor/spi-nor.c +++ b/drivers/mtd/spi-nor/spi-nor.c @@ -211,6 +211,14 @@ struct flash_info { * bit. Must be used with * SPI_NOR_HAS_LOCK. */ +#define SPI_NOR_XSR_RDY BIT(10) /* + * S3AN flashes have specific opcode to + * read the status register. + * Flags SPI_NOR_XSR_RDY and SPI_S3AN + * use the same bit as one implies the + * other, but we will get rid of + * SPI_S3AN soon. + */ #define SPI_S3AN BIT(10) /* * Xilinx Spartan 3AN In-System Flash * (MFR cannot be used for probing @@ -4799,7 +4807,7 @@ int spi_nor_scan(struct spi_nor *nor, const char *name, * spi_nor_wait_till_ready(). Xilinx S3AN share MFR * with Atmel spi-nor */ - if (info->flags & SPI_S3AN) + if (info->flags & SPI_NOR_XSR_RDY) nor->flags |= SNOR_F_READY_XSR_RDY; if (info->flags & SPI_NOR_HAS_LOCK) |