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

Message ID 1386744568-21668-2-git-send-email-nobuhiro.iwamatsu.yj@renesas.com
State Accepted
Delegated to: Heiko Schocher
Headers show

Commit Message

Nobuhiro Iwamatsu Dec. 11, 2013, 6:49 a.m. UTC 
Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
---
 drivers/i2c/rcar_i2c.c | 2 ++
 1 file changed, 2 insertions(+)
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Patch

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);