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    Subject[PATCH 5.10 346/717] mtd: spi-nor: sst: fix BPn bits for the SST25VF064C
    Date
    From: Michael Walle <michael@walle.cc>

    [ Upstream commit 989d4b72bae3b05c1564d38e71e18f65b12734fb ]

    This flash part actually has 4 block protection bits.

    Please note, that this patch is just based on information of the
    datasheet of the datasheet and wasn't tested.

    Fixes: 3e0930f109e7 ("mtd: spi-nor: Rework the disabling of block write protection")
    Reported-by: Tudor Ambarus <tudor.ambarus@microchip.com>
    Signed-off-by: Michael Walle <michael@walle.cc>
    Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
    Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
    Link: https://lore.kernel.org/r/20201203162959.29589-2-michael@walle.cc
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    drivers/mtd/spi-nor/sst.c | 3 ++-
    1 file changed, 2 insertions(+), 1 deletion(-)

    diff --git a/drivers/mtd/spi-nor/sst.c b/drivers/mtd/spi-nor/sst.c
    index e0af6d25d573b..0ab07624fb73f 100644
    --- a/drivers/mtd/spi-nor/sst.c
    +++ b/drivers/mtd/spi-nor/sst.c
    @@ -18,7 +18,8 @@ static const struct flash_info sst_parts[] = {
    SECT_4K | SST_WRITE) },
    { "sst25vf032b", INFO(0xbf254a, 0, 64 * 1024, 64,
    SECT_4K | SST_WRITE) },
    - { "sst25vf064c", INFO(0xbf254b, 0, 64 * 1024, 128, SECT_4K) },
    + { "sst25vf064c", INFO(0xbf254b, 0, 64 * 1024, 128,
    + SECT_4K | SPI_NOR_4BIT_BP) },
    { "sst25wf512", INFO(0xbf2501, 0, 64 * 1024, 1,
    SECT_4K | SST_WRITE) },
    { "sst25wf010", INFO(0xbf2502, 0, 64 * 1024, 2,
    --
    2.27.0


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