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authorLiu Xiang <liu.xiang6@zte.com.cn>2018-08-28 22:32:57 +0800
committerBoris Brezillon <boris.brezillon@bootlin.com>2018-10-12 11:48:19 +0200
commit41fe242979e463d6ad251077ded01b825a330b7e (patch)
treee55c2c96c208b1a27818c4eb642a11ef890f13dc /drivers/mtd
parent42460c31ae96cbad5ae226ee6c10bd8d70d764ae (diff)
downloadlinux-41fe242979e463d6ad251077ded01b825a330b7e.tar.bz2
mtd: spi-nor: fsl-quadspi: fix read error for flash size larger than 16MB
If the size of spi-nor flash is larger than 16MB, the read_opcode is set to SPINOR_OP_READ_1_1_4_4B, and fsl_qspi_get_seqid() will return -EINVAL when cmd is SPINOR_OP_READ_1_1_4_4B. This can cause read operation fail. Fixes: e46ecda764dc ("mtd: spi-nor: Add Freescale QuadSPI driver") Cc: <stable@vger.kernel.org> Signed-off-by: Liu Xiang <liu.xiang6@zte.com.cn> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/spi-nor/fsl-quadspi.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mtd/spi-nor/fsl-quadspi.c b/drivers/mtd/spi-nor/fsl-quadspi.c
index d1ace310e7c1..1ff3430f82c8 100644
--- a/drivers/mtd/spi-nor/fsl-quadspi.c
+++ b/drivers/mtd/spi-nor/fsl-quadspi.c
@@ -478,6 +478,7 @@ static int fsl_qspi_get_seqid(struct fsl_qspi *q, u8 cmd)
{
switch (cmd) {
case SPINOR_OP_READ_1_1_4:
+ case SPINOR_OP_READ_1_1_4_4B:
return SEQID_READ;
case SPINOR_OP_WREN:
return SEQID_WREN;