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authorOfer Heifetz <oferh@marvell.com>2018-08-29 11:56:03 +0300
committerStefan Roese <sr@denx.de>2018-09-19 09:00:39 +0200
commit658999244a0446a32301bc34c8fa53f1a3f05594 (patch)
tree0ac10736771c5bb104e085b9b8a2b6e85fd79524 /drivers/mtd
parentd3859d1b5349e8105b23043e6e7158e3dc1582d4 (diff)
mtd: nand: pxa3xx_nand: fix early spurious interrupt
When the nand is first probe, and upon the first command start, the status bits should be cleared before the interrupts are unmasked. This commit is taken from Linux: 'commit 0b14392db2e' ("mtd: nand: pxa3xx_nand: fix early spurious interrupt") Signed-off-by: Chris Packham <judge.packham@gmail.com> Signed-off-by: Ofer Heifetz <oferh@marvell.com> Reviewed-by: Igal Liberman <igall@marvell.com> Cc: Stefan Roese <sr@denx.de> Cc: Simon Glass <sjg@chromium.org> Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/nand/pxa3xx_nand.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index 8e450fb91ad..7b1dcb24eee 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -481,8 +481,8 @@ static void pxa3xx_nand_start(struct pxa3xx_nand_info *info)
ndcr |= NDCR_ND_RUN;
/* clear status bits and run */
- nand_writel(info, NDCR, 0);
nand_writel(info, NDSR, NDSR_MASK);
+ nand_writel(info, NDCR, 0);
nand_writel(info, NDCR, ndcr);
}