diff --git a/arch/arm/mach-shmobile/setup-r8a7740.c b/arch/arm/mach-shmobile/setup-r8a7740.c
index 14edb5cffa7f23023d8224d055af3e7974a6807d..34a1548dbda6ca201159d8041b61bb8ec854ef16 100644
--- a/arch/arm/mach-shmobile/setup-r8a7740.c
+++ b/arch/arm/mach-shmobile/setup-r8a7740.c
@@ -350,19 +350,19 @@ static void r8a7740_i2c_workaround(struct platform_device *pdev)
 	i2c_write(reg, ICSTART, i2c_read(reg, ICSTART) | 0x10);
 	i2c_read(reg, ICSTART); /* dummy read */
 
-	mdelay(100);
+	udelay(10);
 
 	i2c_write(reg, ICCR, 0x01);
-	i2c_read(reg, ICCR);
 	i2c_write(reg, ICSTART, 0x00);
-	i2c_read(reg, ICSTART);
+
+	udelay(10);
 
 	i2c_write(reg, ICCR, 0x10);
-	mdelay(100);
+	udelay(10);
 	i2c_write(reg, ICCR, 0x00);
-	mdelay(100);
+	udelay(10);
 	i2c_write(reg, ICCR, 0x10);
-	mdelay(100);
+	udelay(10);
 
 	iounmap(reg);
 }