[U-Boot] [PATCH 2/2] rcar_i2c: Clear status before start master receive

Nobuhiro Iwamatsu nobuhiro.iwamatsu.yj at renesas.com
Wed Dec 11 07:49:28 CET 2013


Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak at renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj at renesas.com>
---
 drivers/i2c/rcar_i2c.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/i2c/rcar_i2c.c b/drivers/i2c/rcar_i2c.c
index 01c98d4..50cebd6 100644
--- a/drivers/i2c/rcar_i2c.c
+++ b/drivers/i2c/rcar_i2c.c
@@ -119,6 +119,8 @@ rcar_i2c_raw_read(struct rcar_i2c *dev, u8 chip, uint addr)
 
 	/* set slave address, receive */
 	writel((chip << 1) | 1, &dev->icmar);
+	/* clear status */
+	writel(0, &dev->icmsr);
 	/* start master receive */
 	writel(MCR_MDBS | MCR_MIE | MCR_ESG, &dev->icmcr);
 
-- 
1.8.5



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