[PATCH v3 2/2] mtd: spi-nor: Use 4B opcodes when the NOR advertises both 3B and 4B

[Boris Brezillon <boris.brezillon@xxxxxxxxxxx>]

When the NOR supports 4 bytes opcodes we should use those instead of
switching the flash in 4-bytes mode. This way, we don't have to restore
the addressing mode when resetting the board.

Reported-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxx>
Tested-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
Reviewed-by: Cyrille Pitchen <cyrille.pitchen@xxxxxxxxxx>
---
Changes in v3:
- Add Alexandre R-b+T-b
- Add Cyrille R-b

Changes in v2
- None
---
 drivers/mtd/spi-nor/spi-nor.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/mtd/spi-nor/spi-nor.c b/drivers/mtd/spi-nor/spi-nor.c
index 798915b5c2b0..b20bc4b36f0f 100644
--- a/drivers/mtd/spi-nor/spi-nor.c
+++ b/drivers/mtd/spi-nor/spi-nor.c
@@ -2643,6 +2643,7 @@ static int spi_nor_parse_bfpt(struct spi_nor *nor,
 		break;
 
 	case BFPT_DWORD1_ADDRESS_BYTES_4_ONLY:
+	case BFPT_DWORD1_ADDRESS_BYTES_3_OR_4:
 		nor->flags |= SNOR_F_4B_OPCODES;
 		nor->addr_width = 4;
 		break;
-- 
2.17.1


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