ramips: fix NAND flash driver ECC bit position mask

The bit position mask was accidentally made too wide, overlapping with the LSB
from the byte position mask. This caused ECC calculation to fail for odd bytes

Signed-off-by: Chad Monroe <chad.monroe@smartrg.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
(cherry-picked from commit 918d4ab41ea34358c747aab5471bbb0a2a786dd8)

diff --git a/target/linux/ramips/patches-5.4/0300-mtd-rawnand-add-driver-support-for-MT7621-nand-flash.patch b/target/linux/ramips/patches-5.4/0300-mtd-rawnand-add-driver-support-for-MT7621-nand-flash.patch
index ba844fed0f0e752e79c83c9d306082fc30a7b94b..cca09cd7067c3a32fc9efe6561ed83a9861cd2c2 100644 (file)
--- a/target/linux/ramips/patches-5.4/0300-mtd-rawnand-add-driver-support-for-MT7621-nand-flash.patch
+++ b/target/linux/ramips/patches-5.4/0300-mtd-rawnand-add-driver-support-for-MT7621-nand-flash.patch
@@ -233,7 +233,7 @@ Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
 +#define   DEC_EL_EVEN_S                       0
 +#define   DEC_EL_M                    0x1fff
 +#define   DEC_EL_BYTE_POS_S           3
-+#define   DEC_EL_BIT_POS_M            GENMASK(3, 0)
++#define   DEC_EL_BIT_POS_M            GENMASK(2, 0)
 +
 +#define ECC_FDMADDR                   0x13c
 +