This is a note to let you know that I've just added the patch titled mtd: nand: ifc: update bufnum mask for ver >= 2.0.0 to the 4.14-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-nand-ifc-update-bufnum-mask-for-ver-2.0.0.patch and it can be found in the queue-4.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From foo@baz Fri Mar 16 15:43:17 CET 2018 From: Jagdish Gediya <jagdish.gediya@xxxxxxx> Date: Thu, 23 Nov 2017 17:04:31 +0530 Subject: mtd: nand: ifc: update bufnum mask for ver >= 2.0.0 From: Jagdish Gediya <jagdish.gediya@xxxxxxx> [ Upstream commit bccb06c353af3764ca86d9da47652458e6c2eb41 ] Bufnum mask is used to calculate page position in the internal SRAM. As IFC version 2.0.0 has 16KB of internal SRAM as compared to older versions which had 8KB. Hence bufnum mask needs to be updated. Signed-off-by: Jagdish Gediya <jagdish.gediya@xxxxxxx> Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@xxxxxxx> Signed-off-by: Boris Brezillon <boris.brezillon@xxxxxxxxxxxxxxxxxx> Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/mtd/nand/fsl_ifc_nand.c | 7 +++++++ 1 file changed, 7 insertions(+) --- a/drivers/mtd/nand/fsl_ifc_nand.c +++ b/drivers/mtd/nand/fsl_ifc_nand.c @@ -916,6 +916,13 @@ static int fsl_ifc_chip_init(struct fsl_ if (ctrl->version >= FSL_IFC_VERSION_1_1_0) fsl_ifc_sram_init(priv); + /* + * As IFC version 2.0.0 has 16KB of internal SRAM as compared to older + * versions which had 8KB. Hence bufnum mask needs to be updated. + */ + if (ctrl->version >= FSL_IFC_VERSION_2_0_0) + priv->bufnum_mask = (priv->bufnum_mask * 2) + 1; + return 0; } Patches currently in stable-queue which might be from jagdish.gediya@xxxxxxx are queue-4.14/mtd-nand-ifc-update-bufnum-mask-for-ver-2.0.0.patch