This is a note to let you know that I've just added the patch titled
mtd: spi-nor: fsl-quadspi: fix read error for flash size larger than 16MB
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
mtd-spi-nor-fsl-quadspi-fix-read-error-for-flash-size-larger-than-16mb.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 41fe242979e463d6ad251077ded01b825a330b7e Mon Sep 17 00:00:00 2001
From: Liu Xiang <liu.xiang6@xxxxxxxxxx>
Date: Tue, 28 Aug 2018 22:32:57 +0800
Subject: mtd: spi-nor: fsl-quadspi: fix read error for flash size larger than 16MB
From: Liu Xiang <liu.xiang6@xxxxxxxxxx>
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@xxxxxxxxxxxxxxx>
Signed-off-by: Liu Xiang <liu.xiang6@xxxxxxxxxx>
Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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
@@ -478,6 +478,7 @@ 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;
Patches currently in stable-queue which might be from liu.xiang6@xxxxxxxxxx are
queue-4.19/mtd-spi-nor-fsl-quadspi-fix-read-error-for-flash-size-larger-than-16mb.patch
