mirror of https://gitee.com/openkylin/linux.git
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>
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@ -211,6 +211,14 @@ struct flash_info {
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* bit. Must be used with
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* SPI_NOR_HAS_LOCK.
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*/
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#define SPI_NOR_XSR_RDY BIT(10) /*
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* S3AN flashes have specific opcode to
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* read the status register.
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* Flags SPI_NOR_XSR_RDY and SPI_S3AN
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* use the same bit as one implies the
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* other, but we will get rid of
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* SPI_S3AN soon.
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*/
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#define SPI_S3AN BIT(10) /*
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* Xilinx Spartan 3AN In-System Flash
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* (MFR cannot be used for probing
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@ -4799,7 +4807,7 @@ int spi_nor_scan(struct spi_nor *nor, const char *name,
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* spi_nor_wait_till_ready(). Xilinx S3AN share MFR
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* with Atmel spi-nor
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*/
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if (info->flags & SPI_S3AN)
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if (info->flags & SPI_NOR_XSR_RDY)
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nor->flags |= SNOR_F_READY_XSR_RDY;
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if (info->flags & SPI_NOR_HAS_LOCK)
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