From: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Date: Wed, 11 Dec 2013 06:49:28 +0000 (+0900)
Subject: rcar_i2c: Clear status before start master receive
X-Git-Tag: v2014.01~12^2~4
X-Git-Url: https://git.librecmc.org/?a=commitdiff_plain;h=da1ed0d20e992296aaafb75e545890bce933d340;p=oweals%2Fu-boot.git

rcar_i2c: Clear status before start master receive

Signed-off-by: Hisashi Nakamura <hisashi.nakamura.ak@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
---

diff --git a/drivers/i2c/rcar_i2c.c b/drivers/i2c/rcar_i2c.c
index 01c98d4e16..50cebd622b 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);