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spl: nand: sunxi: add missing status clear

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It is best practice to always clear the status register before executing
a command to be sure that the status read afterwards is relevant.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Acked-by: Boris Brezillon <boris.brezillon@bootlin.com>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
This commit is contained in:
Miquel Raynal 2018-02-28 20:51:49 +01:00 committed by Maxime Ripard
parent 60fb179133
commit 781e70cff1
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1 changed files with 1 additions and 0 deletions
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drivers/mtd/nand/sunxi_nand_spl.c
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@ -245,6 +245,7 @@ static int nand_reset_column(void)
(NFC_CMD_RNDOUT << NFC_RANDOM_READ_CMD0_OFFSET) |
(NFC_CMD_RNDOUTSTART << NFC_READ_CMD_OFFSET),
SUNXI_NFC_BASE + NFC_RCMD_SET);
writel(NFC_ST_CMD_INT_FLAG, SUNXI_NFC_BASE + NFC_ST);
writel(0, SUNXI_NFC_BASE + NFC_ADDR_LOW);
writel(NFC_SEND_CMD1 | NFC_SEND_CMD2 | NFC_RAW_CMD |
(1 << NFC_ADDR_NUM_OFFSET) | NFC_SEND_ADDR | NFC_CMD_RNDOUT,