Commit 5292f504 authored by Nishanth Menon's avatar Nishanth Menon Committed by Vignesh Raghavendra
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arm64: dts: ti: k3-am654-base-board: Add VTT GPIO regulator for DDR 



Hold the DDR vtt regulator active for functionality.

Signed-off-by: default avatarNishanth Menon <nm@ti.com>
Reviewed-by: default avatarKamlesh Gurudasani <kamlesh@ti.com>
Link: https://lore.kernel.org/r/20230419225913.663448-4-nm@ti.com


Signed-off-by: default avatarVignesh Raghavendra <vigneshr@ti.com>
parent ec1b5482

arch/arm64/boot/dts/ti/k3-am654-base-board.dts

+20 −0
Original line number Diff line number Diff line
@@ -116,6 +116,20 @@ vdd_mmc1_sd: regulator-2 { 
		vin-supply = <&vcc3v3_io>;

		gpio = <&pca9554 4 GPIO_ACTIVE_HIGH>;

	};



	vtt_supply: regulator-3 {

		compatible = "regulator-fixed";

		regulator-name = "vtt";

		pinctrl-names = "default";

		pinctrl-0 = <&ddr_vtt_pins_default>;

		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

		enable-active-high;

		regulator-always-on;

		regulator-boot-on;

		vin-supply = <&vcc3v3_io>;

		gpio = <&wkup_gpio0 28 GPIO_ACTIVE_HIGH>;

	};

};



&wkup_pmx0 {
@@ -128,6 +142,12 @@ AM65X_WKUP_IOPAD(0x00cc, PIN_OUTPUT, 1) /* (AC1) WKUP_GPIO0_7.WKUP_UART0_RTSn */ 
		>;

	};



	ddr_vtt_pins_default: ddr-vtt-pins-default {

		pinctrl-single,pins = <

			AM65X_WKUP_IOPAD(0x0040, PIN_OUTPUT_PULLUP, 7)	/* WKUP_GPIO0_28 */

		>;

	};



	wkup_i2c0_pins_default: wkup-i2c0-pins-default {

		pinctrl-single,pins = <

			AM65X_WKUP_IOPAD(0x00e0, PIN_INPUT, 0) /* (AC7) WKUP_I2C0_SCL */