sh: r0p7734: Add support I2C controller

This read MAC address from Serial EEPROM and set.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/include/configs/r0p7734.h b/include/configs/r0p7734.h
index d73cc4d..aa3193d 100644
--- a/include/configs/r0p7734.h
+++ b/include/configs/r0p7734.h
@@ -34,6 +34,7 @@
 #define CONFIG_400MHZ_MODE	1
 /* #define CONFIG_533MHZ_MODE	1 */
 
+#define CONFIG_BOARD_LATE_INIT
 #define CONFIG_SYS_TEXT_BASE 0x8FFC0000
 
 #define CONFIG_CMD_FLASH
@@ -67,6 +68,22 @@
 # define CONFIG_SMC911X_BASE (0x84000000)
 #endif
 
+
+/* I2C */
+#define CONFIG_CMD_I2C
+#define CONFIG_SH_SH7734_I2C	1
+#define CONFIG_HARD_I2C			1
+#define CONFIG_I2C_MULTI_BUS	1
+#define CONFIG_SYS_MAX_I2C_BUS	2
+#define CONFIG_SYS_I2C_MODULE	0
+#define CONFIG_SYS_I2C_SPEED	100000 /* 100 kHz */
+#define CONFIG_SYS_I2C_SLAVE	0x50
+#define CONFIG_SH_I2C_DATA_HIGH	4
+#define CONFIG_SH_I2C_DATA_LOW	5
+#define CONFIG_SH_I2C_CLOCK		500000000
+#define CONFIG_SH_I2C_BASE0		0xFFC70000
+#define CONFIG_SH_I2C_BASE1		0xFFC7100
+
 /* undef to save memory	*/
 #define CONFIG_SYS_LONGHELP
 /* Monitor Command Prompt */