| From foo@baz Fri Mar 16 15:43:17 CET 2018 |
| From: Jagdish Gediya <jagdish.gediya@nxp.com> |
| 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@nxp.com> |
| |
| |
| [ 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@nxp.com> |
| Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com> |
| Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> |
| Signed-off-by: Sasha Levin <alexander.levin@microsoft.com> |
| Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| --- |
| 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; |
| } |
| |
