Commit 8f023012 authored by Vignesh Raghavendra's avatar Vignesh Raghavendra Committed by Nishanth Menon
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arm64: dts: ti: k3-am62a: Enable UHS mode support for SD cards 



Hook up required IO voltage regulators and drop no-1-8-v to support UHS
modes on SD cards.

Fixes: 5fc6b1b6 ("arm64: dts: ti: Introduce AM62A7 family of SoCs")
Signed-off-by: default avatarVignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: default avatarJudith Mendez <jm@ti.com>
Link: https://lore.kernel.org/r/20240423151732.3541894-4-jm@ti.com


Signed-off-by: default avatarNishanth Menon <nm@ti.com>
parent 735ddec7

arch/arm64/boot/dts/ti/k3-am62a-main.dtsi

+0 −2
Original line number Diff line number Diff line
@@ -573,7 +573,6 @@ sdhci1: mmc@fa00000 { 
		ti,itap-del-sel-sd-hs = <0x0>;

		ti,itap-del-sel-sdr12 = <0x0>;

		ti,itap-del-sel-sdr25 = <0x0>;

		no-1-8-v;

		status = "disabled";

	};
@@ -597,7 +596,6 @@ sdhci2: mmc@fa20000 { 
		ti,itap-del-sel-sd-hs = <0x0>;

		ti,itap-del-sel-sdr12 = <0x0>;

		ti,itap-del-sel-sdr25 = <0x0>;

		no-1-8-v;

		status = "disabled";

	};

arch/arm64/boot/dts/ti/k3-am62a7-sk.dts

+21 −0
Original line number Diff line number Diff line
@@ -113,6 +113,20 @@ vcc_3v3_sys: regulator-4 { 
		regulator-boot-on;

	};



	vddshv_sdio: regulator-5 {

		compatible = "regulator-gpio";

		regulator-name = "vddshv_sdio";

		pinctrl-names = "default";

		pinctrl-0 = <&vddshv_sdio_pins_default>;

		regulator-min-microvolt = <1800000>;

		regulator-max-microvolt = <3300000>;

		regulator-boot-on;

		vin-supply = <&ldo1>;

		gpios = <&main_gpio0 31 GPIO_ACTIVE_HIGH>;

		states = <1800000 0x0>,

			 <3300000 0x1>;

	};



	leds {

		compatible = "gpio-leds";

		pinctrl-names = "default";
@@ -342,6 +356,12 @@ main_gpio1_ioexp_intr_pins_default: main-gpio1-ioexp-intr-default-pins { 
			AM62AX_IOPAD(0x01d4, PIN_INPUT, 7) /* (C15) UART0_RTSn.GPIO1_23 */

		>;

	};



	vddshv_sdio_pins_default: vddshv-sdio-default-pins {

		pinctrl-single,pins = <

			AM62AX_IOPAD(0x07c, PIN_OUTPUT, 7) /* (M19) GPMC0_CLK.GPIO0_31 */

		>;

	};

};



&mcu_pmx0 {
@@ -580,6 +600,7 @@ &sdhci1 { 
	/* SD/MMC */

	status = "okay";

	vmmc-supply = <&vdd_mmc1>;

	vqmmc-supply = <&vddshv_sdio>;

	pinctrl-names = "default";

	pinctrl-0 = <&main_mmc1_pins_default>;

	disable-wp;