Commit cd48ce86 authored by Faiz Abbas's avatar Faiz Abbas Committed by Nishanth Menon
Browse files

arm64: dts: ti: k3-j721e-common-proc-board: Add support for SD card UHS modes 



Add support for UHS modes for the SD card connected at sdhci1. This
involves adding regulators for voltage switching and power cycling the
SD card and removing the no-1-8-v property.

Signed-off-by: default avatarFaiz Abbas <faiz_abbas@ti.com>
Signed-off-by: default avatarSekhar Nori <nsekhar@ti.com>
Signed-off-by: default avatarNishanth Menon <nm@ti.com>
Link: https://lore.kernel.org/r/20201129175223.21751-3-nsekhar@ti.com
parent 09ff4e90

arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts

+33 −0
Original line number Diff line number Diff line
@@ -67,6 +67,31 @@ 
		regulator-boot-on;

	};



	vdd_mmc1: fixedregulator-sd {

		compatible = "regulator-fixed";

		regulator-name = "vdd_mmc1";

		regulator-min-microvolt = <3300000>;

		regulator-max-microvolt = <3300000>;

		regulator-boot-on;

		enable-active-high;

		vin-supply = <&vsys_3v3>;

		gpio = <&exp2 2 GPIO_ACTIVE_HIGH>;

	};



	vdd_sd_dv_alt: gpio-regulator-TLV71033 {

		compatible = "regulator-gpio";

		pinctrl-names = "default";

		pinctrl-0 = <&vdd_sd_dv_alt_pins_default>;

		regulator-name = "tlv71033";

		regulator-min-microvolt = <1800000>;

		regulator-max-microvolt = <3300000>;

		regulator-boot-on;

		vin-supply = <&vsys_5v0>;

		gpios = <&main_gpio0 117 GPIO_ACTIVE_HIGH>;

		states = <1800000 0x0>,

			 <3300000 0x1>;

	};



	sound0: sound@0 {

		compatible = "ti,j721e-cpb-audio";

		model = "j721e-cpb";
@@ -106,6 +131,12 @@ 
		>;

	};



	vdd_sd_dv_alt_pins_default: vdd-sd-dv-alt-pins-default {

		pinctrl-single,pins = <

			J721E_IOPAD(0x1d8, PIN_INPUT, 7) /* (W4) SPI1_CS1.GPIO0_117 */

		>;

	};



	main_usbss0_pins_default: main-usbss0-pins-default {

		pinctrl-single,pins = <

			J721E_IOPAD(0x290, PIN_OUTPUT, 0) /* (U6) USB0_DRVVBUS */
@@ -295,6 +326,8 @@ 


&main_sdhci1 {

	/* SD/MMC */

	vmmc-supply = <&vdd_mmc1>;

	vqmmc-supply = <&vdd_sd_dv_alt>;

	pinctrl-names = "default";

	pinctrl-0 = <&main_mmc1_pins_default>;

	ti,driver-strength-ohm = <50>;

arch/arm64/boot/dts/ti/k3-j721e-main.dtsi

+0 −2
Original line number Diff line number Diff line
@@ -1108,7 +1108,6 @@ 
		ti,trm-icp = <0x8>;

		ti,clkbuf-sel = <0x7>;

		dma-coherent;

		no-1-8-v;

	};



	main_sdhci2: sdhci@4f98000 {
@@ -1129,7 +1128,6 @@ 
		ti,trm-icp = <0x8>;

		ti,clkbuf-sel = <0x7>;

		dma-coherent;

		no-1-8-v;

	};



	usbss0: cdns-usb@4104000 {

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