| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.14 001/222] mtd: spi-nor: fsl-quadspi: fix read error for flash size larger than 16MB | Date | Sun, 11 Nov 2018 14:21:38 -0800 |
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4.14-stable review patch. If anyone has any objections, please let me know.
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From: Liu Xiang <liu.xiang6@zte.com.cn>
commit 41fe242979e463d6ad251077ded01b825a330b7e upstream.
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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/mtd/spi-nor/fsl-quadspi.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/mtd/spi-nor/fsl-quadspi.c +++ b/drivers/mtd/spi-nor/fsl-quadspi.c @@ -468,6 +468,7 @@ static int fsl_qspi_get_seqid(struct fsl { 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;
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