[PATCH 5.10 346/717] mtd: spi-nor: sst: fix BPn bits for the SST25VF064C

Greg Kroah-Hartman
2020-12-28T14:56:04Z

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