arm: dts: k3-j721e-common-proc-board: Enable I2C expander for SPL

[oweals/u-boot.git] / arch / arm / dts / k3-j721e-r5-common-proc-board.dts

diff --git a/arch/arm/dts/k3-j721e-r5-common-proc-board.dts b/arch/arm/dts/k3-j721e-r5-common-proc-board.dts
index 585cc839632b33971d0d6468293bb95024ec0f70..1f14d71438b4ff800a75f521e35fe446787fde14 100644 (file)
--- a/arch/arm/dts/k3-j721e-r5-common-proc-board.dts
+++ b/arch/arm/dts/k3-j721e-r5-common-proc-board.dts
@@ -140,6 +140,13 @@
                        J721E_IOPAD(0x25c, PIN_INPUT, 0) /* (R28) MMC1_SDWP */
                >;
        };
+
+       main_i2c0_pins_default: main-i2c0-pins-default {
+               pinctrl-single,pins = <
+                       J721E_IOPAD(0x220, PIN_INPUT_PULLUP, 0) /* (AC5) I2C0_SCL */
+                       J721E_IOPAD(0x224, PIN_INPUT_PULLUP, 0) /* (AA5) I2C0_SDA */
+               >;
+       };
 };
 
 &wkup_uart0 {
@@ -225,4 +232,24 @@
        ti,vbus-divider;
 };
 
+&main_i2c0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&main_i2c0_pins_default>;
+       clock-frequency = <400000>;
+
+       exp1: gpio@20 {
+               compatible = "ti,tca6416";
+               reg = <0x20>;
+               gpio-controller;
+               #gpio-cells = <2>;
+       };
+
+       exp2: gpio@22 {
+               compatible = "ti,tca6424";
+               reg = <0x22>;
+               gpio-controller;
+               #gpio-cells = <2>;
+       };
+};
+
 #include "k3-j721e-common-proc-board-u-boot.dtsi"