To enable mipi display, we need to enable pmic
rk808 first for lcd3v3 power,which use i2c0 to
communicate with soc. So enable i2c0.

Signed-off-by: Eric Gao <eric....@rock-chips.com>

---

 arch/arm/dts/rk3399.dtsi     | 16 ++++++++++++++++
 configs/evb-rk3399_defconfig |  1 +
 drivers/i2c/rk_i2c.c         |  1 +
 3 files changed, 18 insertions(+)

diff --git a/arch/arm/dts/rk3399.dtsi b/arch/arm/dts/rk3399.dtsi
index 456fdb6..93e3bf4 100644
--- a/arch/arm/dts/rk3399.dtsi
+++ b/arch/arm/dts/rk3399.dtsi
@@ -26,6 +26,7 @@
                serial4 = &uart4;
                mmc0 = &sdhci;
                mmc1 = &sdmmc;
+               i2c0 = &i2c0;
        };
 
        cpus {
@@ -651,6 +652,21 @@
                status = "disabled";
        };
 
+       i2c0: i2c@ff3c0000 {
+               compatible = "rockchip,rk3399-i2c";
+               reg = <0x0 0xff3c0000 0x0 0x1000>;
+               assigned-clocks = <&pmucru SCLK_I2C0_PMU>;
+               assigned-clock-rates = <200000000>;
+               clocks = <&pmucru SCLK_I2C0_PMU>, <&pmucru PCLK_I2C0_PMU>;
+               clock-names = "i2c", "pclk";
+               interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH 0>;
+               pinctrl-names = "default";
+               pinctrl-0 = <&i2c0_xfer>;
+               #address-cells = <1>;
+               #size-cells = <0>;
+               status = "disabled";
+       };
+
        pinctrl: pinctrl {
                u-boot,dm-pre-reloc;
                compatible = "rockchip,rk3399-pinctrl";
diff --git a/configs/evb-rk3399_defconfig b/configs/evb-rk3399_defconfig
index bedc1fd..2e2f9a8 100644
--- a/configs/evb-rk3399_defconfig
+++ b/configs/evb-rk3399_defconfig
@@ -58,3 +58,4 @@ CONFIG_USB_EHCI_GENERIC=y
 CONFIG_USB_STORAGE=y
 CONFIG_USE_TINY_PRINTF=y
 CONFIG_ERRNO_STR=y
+CONFIG_SYS_I2C_ROCKCHIP=y
diff --git a/drivers/i2c/rk_i2c.c b/drivers/i2c/rk_i2c.c
index 7c701cb..a4c8c2ba 100644
--- a/drivers/i2c/rk_i2c.c
+++ b/drivers/i2c/rk_i2c.c
@@ -381,6 +381,7 @@ static const struct dm_i2c_ops rockchip_i2c_ops = {
 
 static const struct udevice_id rockchip_i2c_ids[] = {
        { .compatible = "rockchip,rk3288-i2c" },
+       { .compatible = "rockchip,rk3399-i2c" },
        { }
 };
 
-- 
1.9.1


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