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mtd: spi-nor: add generic flash driver

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Our SFDP parsing is everything we need to support all basic operations
of a flash device. If the flash isn't found in our in-kernel flash
database, gracefully fall back to a driver described solely by its SFDP
tables.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Tested-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Reviewed-by: Takahiro Kuwano <Takahiro.Kuwano@infineon.com>
Link: https://lore.kernel.org/r/20220810220654.1297699-7-michael@walle.cc
This commit is contained in:
Michael Walle
2022-08-11 00:06:53 +02:00
committed by Tudor Ambarus
parent 39eece67a3
commit 773bbe1044
3 changed files with 52 additions and 2 deletions
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1
drivers/mtd/spi-nor/core.h
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@@ -701,6 +701,7 @@ int spi_nor_controller_ops_read_reg(struct spi_nor *nor, u8 opcode,
int spi_nor_controller_ops_write_reg(struct spi_nor *nor, u8 opcode,
const u8 *buf, size_t len);
int spi_nor_check_sfdp_signature(struct spi_nor *nor);
int spi_nor_parse_sfdp(struct spi_nor *nor);
static inline struct spi_nor *mtd_to_spi_nor(struct mtd_info *mtd)