spl: nand: sunxi: add missing status clear

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>

diff --git a/drivers/mtd/nand/sunxi_nand_spl.c b/drivers/mtd/nand/sunxi_nand_spl.c
index cd823cd70b238a51f64db7463157d2df324aa71b..913de7d44251e0d64d5782947be0f888696ea963 100644 (file)
--- a/drivers/mtd/nand/sunxi_nand_spl.c
+++ b/drivers/mtd/nand/sunxi_nand_spl.c
@@ -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,