ARM: rmobile: Migrate boards to RCar IIC drivers

Stop using the old ad-hoc SH I2C driver and use the new RCar IIC
driver instead. The SH I2C driver should be deprecated and removed
eventually.
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

arch/arm/dts/ulcb.dtsi

@@ -190,6 +190,10 @@
 	};
 };
 
+&i2c_dvfs {
+	status = "okay";
+};
+
 &ohci1 {
 	status = "okay";
 };

configs/r8a7795_salvator-x_defconfig

@@ -13,6 +13,7 @@ CONFIG_VERSION_VARIABLE=y
 CONFIG_HUSH_PARSER=y
 CONFIG_CMD_BOOTZ=y
 CONFIG_CMD_GPIO=y
+CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
 CONFIG_CMD_USB=y
 CONFIG_CMD_DHCP=y
@@ -31,6 +32,8 @@ CONFIG_CLK=y
 CONFIG_CLK_RENESAS=y
 CONFIG_DM_GPIO=y
 CONFIG_RCAR_GPIO=y
+CONFIG_DM_I2C=y
+CONFIG_SYS_I2C_RCAR_IIC=y
 CONFIG_DM_MMC=y
 CONFIG_MMC_UNIPHIER=y
 CONFIG_PHY_MICREL=y

configs/r8a7795_ulcb_defconfig

@@ -13,6 +13,7 @@ CONFIG_VERSION_VARIABLE=y
 CONFIG_HUSH_PARSER=y
 CONFIG_CMD_BOOTZ=y
 CONFIG_CMD_GPIO=y
+CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
 CONFIG_CMD_USB=y
 CONFIG_CMD_DHCP=y
@@ -31,6 +32,8 @@ CONFIG_CLK=y
 CONFIG_CLK_RENESAS=y
 CONFIG_DM_GPIO=y
 CONFIG_RCAR_GPIO=y
+CONFIG_DM_I2C=y
+CONFIG_SYS_I2C_RCAR_IIC=y
 CONFIG_DM_MMC=y
 CONFIG_MMC_UNIPHIER=y
 CONFIG_PHY_MICREL=y

configs/r8a7796_salvator-x_defconfig

@@ -14,6 +14,7 @@ CONFIG_VERSION_VARIABLE=y
 CONFIG_HUSH_PARSER=y
 CONFIG_CMD_BOOTZ=y
 CONFIG_CMD_GPIO=y
+CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
 CONFIG_CMD_USB=y
 CONFIG_CMD_DHCP=y
@@ -32,6 +33,8 @@ CONFIG_CLK=y
 CONFIG_CLK_RENESAS=y
 CONFIG_DM_GPIO=y
 CONFIG_RCAR_GPIO=y
+CONFIG_DM_I2C=y
+CONFIG_SYS_I2C_RCAR_IIC=y
 CONFIG_DM_MMC=y
 CONFIG_MMC_UNIPHIER=y
 CONFIG_PHY_MICREL=y

configs/r8a7796_ulcb_defconfig

@@ -14,6 +14,7 @@ CONFIG_VERSION_VARIABLE=y
 CONFIG_HUSH_PARSER=y
 CONFIG_CMD_BOOTZ=y
 CONFIG_CMD_GPIO=y
+CONFIG_CMD_I2C=y
 CONFIG_CMD_MMC=y
 CONFIG_CMD_USB=y
 CONFIG_CMD_DHCP=y
@@ -32,6 +33,8 @@ CONFIG_CLK=y
 CONFIG_CLK_RENESAS=y
 CONFIG_DM_GPIO=y
 CONFIG_RCAR_GPIO=y
+CONFIG_DM_I2C=y
+CONFIG_SYS_I2C_RCAR_IIC=y
 CONFIG_DM_MMC=y
 CONFIG_MMC_UNIPHIER=y
 CONFIG_PHY_MICREL=y

include/configs/salvator-x.h

@@ -25,18 +25,6 @@
 /* Generic Timer Definitions (use in assembler source) */
 #define COUNTER_FREQUENCY	0xFE502A	/* 16.66MHz from CPclk */
 
-/* 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
-
 /* Environment in eMMC, at the end of 2nd "boot sector" */
 #define CONFIG_ENV_OFFSET		(-CONFIG_ENV_SIZE)
 #define CONFIG_SYS_MMC_ENV_DEV		1

include/configs/ulcb.h

@@ -38,18 +38,6 @@ void ulcb_softspi_scl(int);
 unsigned char ulcb_softspi_read(void);
 #endif
 
-/* 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
-
 /* Environment in eMMC, at the end of 2nd "boot sector" */
 #define CONFIG_ENV_OFFSET		(-CONFIG_ENV_SIZE)
 #define CONFIG_SYS_MMC_ENV_DEV		1