linux-kernel - [PATCH AUTOSEL 4.9 22/91] mtd: rawnand: sunxi: Write pageprog related opcodes to WCMD

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Message-Id: <20191122060129.4239-21-sashal@kernel.org>
Date:   Fri, 22 Nov 2019 01:00:20 -0500
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Boris Brezillon <boris.brezillon@...tlin.com>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Sasha Levin <sashal@...nel.org>, linux-mtd@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH AUTOSEL 4.9 22/91] mtd: rawnand: sunxi: Write pageprog related opcodes to WCMD_SET

From: Boris Brezillon <boris.brezillon@...tlin.com>

[ Upstream commit 732774437ae01d9882e60314e303898e63c7f038 ]

The opcodes used by the controller when doing batched page prog should
be written in NFC_REG_WCMD_SET not FC_REG_RCMD_SET. Luckily, the
default NFC_REG_WCMD_SET value matches the one we set in the driver
which explains why we didn't notice the problem.

Fixes: 614049a8d904 ("mtd: nand: sunxi: add support for DMA assisted operations")
Signed-off-by: Boris Brezillon <boris.brezillon@...tlin.com>
Signed-off-by: Miquel Raynal <miquel.raynal@...tlin.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/mtd/nand/sunxi_nand.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/nand/sunxi_nand.c b/drivers/mtd/nand/sunxi_nand.c
index e26c4f880df66..886355bfa7617 100644
--- a/drivers/mtd/nand/sunxi_nand.c
+++ b/drivers/mtd/nand/sunxi_nand.c
@@ -1420,7 +1420,7 @@ static int sunxi_nfc_hw_ecc_write_page_dma(struct mtd_info *mtd,
 	sunxi_nfc_randomizer_enable(mtd);
 
 	writel((NAND_CMD_RNDIN << 8) | NAND_CMD_PAGEPROG,
-	       nfc->regs + NFC_REG_RCMD_SET);
+	       nfc->regs + NFC_REG_WCMD_SET);
 
 	dma_async_issue_pending(nfc->dmac);
 
-- 
2.20.1