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mtd: nand: ifc: update bufnum mask for ver >= 2.0.0

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[ Upstream commit bccb06c353 ]

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>
This commit is contained in:
Jagdish Gediya 2017-11-23 17:04:31 +05:30 committed by Greg Kroah-Hartman
parent 2f1f60c4b9
commit 926b261b1e
1 changed files with 7 additions and 0 deletions
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7
drivers/mtd/nand/fsl_ifc_nand.c
View file

@ -916,6 +916,13 @@ static int fsl_ifc_chip_init(struct fsl_ifc_mtd *priv)
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;
}