arm: dts: k3-j721e-common-proc-board: Enable I2C expander for SPL
IO expanders are required to power cycle SD card. So enable the same
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
diff --git a/arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi b/arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi
index 7ea4d8d..a3a8193 100644
--- a/arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi
+++ b/arch/arm/dts/k3-j721e-common-proc-board-u-boot.dtsi
@@ -337,3 +337,15 @@
&wkup_i2c0 {
u-boot,dm-spl;
};
+
+&main_i2c0 {
+ u-boot,dm-spl;
+};
+
+&main_i2c0_pins_default {
+ u-boot,dm-spl;
+};
+
+&exp2 {
+ u-boot,dm-spl;
+};
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 585cc83..1f14d71 100644
--- 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"