arm: koelsch: Add support I2C

This supports sh_i2c on koelsch board.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>

include/configs/koelsch.h

@@ -149,4 +149,20 @@
 #define CONFIG_SYS_TMU_CLK_DIV	4
 #define CONFIG_SYS_HZ		1000
 
+/* i2c */
+#define CONFIG_CMD_I2C
+#define CONFIG_SYS_I2C
+#define CONFIG_SYS_I2C_SH
+#define CONFIG_SYS_I2C_SLAVE	0x7F
+#define CONFIG_SYS_I2C_SH_NUM_CONTROLLERS	3
+#define CONFIG_SYS_I2C_SH_BASE0		0xE6500000
+#define CONFIG_SYS_I2C_SH_SPEED0	400000
+#define CONFIG_SYS_I2C_SH_BASE1		0xE6510000
+#define CONFIG_SYS_I2C_SH_SPEED1	400000
+#define CONFIG_SYS_I2C_SH_BASE2		0xE60B0000
+#define CONFIG_SYS_I2C_SH_SPEED2	400000
+#define CONFIG_SH_I2C_DATA_HIGH	4
+#define CONFIG_SH_I2C_DATA_LOW	5
+#define CONFIG_SH_I2C_CLOCK	10000000
+
 #endif	/* __KOELSCH_H */