ARM: dts: rockchip: add i2c dt nodes for rv1108

There are four i2c controllers on rv1108, add
device tree node for them.

Signed-off-by: Andy Yan <andy.yan@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm/boot/dts/rv1108.dtsi b/arch/arm/boot/dts/rv1108.dtsi
index 4c2133695a557bcd755e7f6c7f40d2c3e12c227b..34bdd195614934dc79d1c4160b778d030846a35d 100644 (file)
--- a/arch/arm/boot/dts/rv1108.dtsi
+++ b/arch/arm/boot/dts/rv1108.dtsi
@@ -52,6 +52,10 @@
        interrupt-parent = <&gic>;
 
        aliases {
+               i2c0 = &i2c0;
+               i2c1 = &i2c1;
+               i2c2 = &i2c2;
+               i2c3 = &i2c3;
                serial0 = &uart0;
                serial1 = &uart1;
                serial2 = &uart2;
@@ -154,11 +158,67 @@
                status = "disabled";
        };
 
+       i2c1: i2c@10240000 {
+               compatible = "rockchip,rv1108-i2c";
+               reg = <0x10240000 0x1000>;
+               interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
+               #address-cells = <1>;
+               #size-cells = <0>;
+               clocks = <&cru SCLK_I2C1>, <&cru PCLK_I2C1>;
+               clock-names = "i2c", "pclk";
+               pinctrl-names = "default";
+               pinctrl-0 = <&i2c1_xfer>;
+               rockchip,grf = <&grf>;
+               status = "disabled";
+       };
+
+       i2c2: i2c@10250000 {
+               compatible = "rockchip,rv1108-i2c";
+               reg = <0x10250000 0x1000>;
+               interrupts = <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>;
+               #address-cells = <1>;
+               #size-cells = <0>;
+               clocks = <&cru SCLK_I2C2>, <&cru PCLK_I2C2>;
+               clock-names = "i2c", "pclk";
+               pinctrl-names = "default";
+               pinctrl-0 = <&i2c2m1_xfer>;
+               rockchip,grf = <&grf>;
+               status = "disabled";
+       };
+
+       i2c3: i2c@10260000 {
+               compatible = "rockchip,rv1108-i2c";
+               reg = <0x10260000 0x1000>;
+               interrupts = <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>;
+               #address-cells = <1>;
+               #size-cells = <0>;
+               clocks = <&cru SCLK_I2C3>, <&cru PCLK_I2C3>;
+               clock-names = "i2c", "pclk";
+               pinctrl-names = "default";
+               pinctrl-0 = <&i2c3_xfer>;
+               rockchip,grf = <&grf>;
+               status = "disabled";
+       };
+
        grf: syscon@10300000 {
                compatible = "rockchip,rv1108-grf", "syscon";
                reg = <0x10300000 0x1000>;
        };
 
+       i2c0: i2c@20000000 {
+               compatible = "rockchip,rv1108-i2c";
+               reg = <0x20000000 0x1000>;
+               interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
+               #address-cells = <1>;
+               #size-cells = <0>;
+               clocks = <&cru SCLK_I2C0_PMU>, <&cru PCLK_I2C0_PMU>;
+               clock-names = "i2c", "pclk";
+               pinctrl-names = "default";
+               pinctrl-0 = <&i2c0_xfer>;
+               rockchip,grf = <&grf>;
+               status = "disabled";
+       };
+
        pmugrf: syscon@20060000 {
                compatible = "rockchip,rv1108-pmugrf", "syscon";
                reg = <0x20060000 0x1000>;
@@ -303,6 +363,11 @@
                        drive-strength = <12>;
                };
 
+               pcfg_pull_none_smt: pcfg-pull-none-smt {
+                       bias-disable;
+                       input-schmitt-enable;
+               };
+
                pcfg_pull_up_drv_8ma: pcfg-pull-up-drv-8ma {
                        bias-pull-up;
                        drive-strength = <8>;
@@ -330,6 +395,13 @@
                        input-enable;
                };
 
+               i2c0 {
+                       i2c0_xfer: i2c0-xfer {
+                               rockchip,pins = <0 RK_PB1 RK_FUNC_1 &pcfg_pull_none_smt>,
+                                               <0 RK_PB2 RK_FUNC_1 &pcfg_pull_none_smt>;
+                       };
+               };
+
                i2c1 {
                        i2c1_xfer: i2c1-xfer {
                                rockchip,pins = <2 RK_PD3 RK_FUNC_1 &pcfg_pull_up>,