[PATCH 4/6] arm: dts: k3-am642-r5-evm: Add I2C0 and Card detect GPIOs

Roger Quadros
2023-07-04T18:11:14Z

Card detect GPIOs are on I2C GPIO Expander on I2C0.
Enable I2C0 and GPIO Expander for r5-evm.

Signed-off-by: Roger Quadros <rogerq@kernel.org>
---
arch/arm/dts/k3-am642-r5-evm.dts | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)

diff --git a/arch/arm/dts/k3-am642-r5-evm.dts b/arch/arm/dts/k3-am642-r5-evm.dts
index e870492a69..01b4a61852 100644
--- a/arch/arm/dts/k3-am642-r5-evm.dts
+++ b/arch/arm/dts/k3-am642-r5-evm.dts
@@ -209,6 +209,13 @@
AM64X_IOPAD(0x0144, PIN_OUTPUT, 4) /* (Y11) PRG1_PRU1_GPO15.RGMII2_TX_CTL */
>;
};
+
+ main_i2c0_pins_default: main-i2c0-default-pins {
+ pinctrl-single,pins = <
+ AM64X_IOPAD(0x0260, PIN_INPUT_PULLUP, 0) /* (A18) I2C0_SCL */
+ AM64X_IOPAD(0x0264, PIN_INPUT_PULLUP, 0) /* (B18) I2C0_SDA */
+ >;
+ };
};

&dmsc {
@@ -267,6 +274,18 @@
/* EEPROM might be read before SYSFW is available */
&main_i2c0 {
/delete-property/ power-domains;
+ status = "okay";
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_i2c0_pins_default>;
+ clock-frequency = <400000>;
+
+ tca9554: gpio@38 {
+ /* TCA9554 */
+ compatible = "nxp,pca9554";
+ reg = <0x38>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
};

&usbss0 {
--
2.34.1