ARM: rmobile: salvator-x: Add DVFS and PMIC support

Add support for rebooting the board using the ROHM BD9571MWV I2C PMIC,
but keep the CPU reboot option as a fallback.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/include/configs/salvator-x.h b/include/configs/salvator-x.h
index b5a98d6..0e5c130 100644
--- a/include/configs/salvator-x.h
+++ b/include/configs/salvator-x.h
@@ -50,6 +50,18 @@
 #define GICD_BASE	0xF1010000
 #define GICC_BASE	0xF1020000
 
+/* i2c */
+#define CONFIG_SYS_I2C
+#define CONFIG_SYS_I2C_SH
+#define CONFIG_SYS_I2C_SLAVE		0x60
+#define CONFIG_SYS_I2C_SH_NUM_CONTROLLERS	1
+#define CONFIG_SYS_I2C_SH_SPEED0	400000
+#define CONFIG_SH_I2C_DATA_HIGH		4
+#define CONFIG_SH_I2C_DATA_LOW		5
+#define CONFIG_SH_I2C_CLOCK		10000000
+
+#define CONFIG_SYS_I2C_POWERIC_ADDR	0x30
+
 /* SDHI */
 #define CONFIG_SH_SDHI_FREQ		200000000