Commit ae9edcbc authored by Biju Das's avatar Biju Das Committed by Geert Uytterhoeven
Browse files

arm64: dts: renesas: r9a09g047e57-smarc: Enable SDHI1 



Enable SDHI1 on the RZ/G3E SMARC EVK platform using gpio regulator for
voltage switching.

Signed-off-by: default avatarBiju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250206134047.67866-9-biju.das.jz@bp.renesas.com


Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
parent 4c85281b

arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts

+46 −0
Original line number Diff line number Diff line
@@ -9,7 +9,9 @@ 


/* Switch selection settings */

#define SW_SD0_DEV_SEL		0

#define SW_SDIO_M2E		0



#include <dt-bindings/gpio/gpio.h>

#include <dt-bindings/pinctrl/renesas,r9a09g047-pinctrl.h>

#include "r9a09g047e57.dtsi"

#include "rzg3e-smarc-som.dtsi"
@@ -19,6 +21,16 @@ / { 
	model = "Renesas SMARC EVK version 2 based on r9a09g047e57";

	compatible = "renesas,smarc2-evk", "renesas,rzg3e-smarcm",

		     "renesas,r9a09g047e57", "renesas,r9a09g047";



	vqmmc_sd1_pvdd: regulator-vqmmc-sd1-pvdd {

		compatible = "regulator-gpio";

		regulator-name = "SD1_PVDD";

		regulator-min-microvolt = <1800000>;

		regulator-max-microvolt = <3300000>;

		gpios = <&pinctrl RZG3E_GPIO(1, 5) GPIO_ACTIVE_HIGH>;

		gpios-states = <0>;

		states = <3300000 0>, <1800000 1>;

	};

};



&pinctrl {
@@ -26,9 +38,43 @@ scif_pins: scif { 
		pins = "SCIF_TXD", "SCIF_RXD";

		renesas,output-impedance = <1>;

	};



	sd1-pwr-en-hog {

		gpio-hog;

		gpios = <RZG3E_GPIO(1, 6) GPIO_ACTIVE_HIGH>;

		output-high;

		line-name = "sd1_pwr_en";

	};



	sdhi1_pins: sd1 {

		sd1-cd {

			pinmux = <RZG3E_PORT_PINMUX(1, 4, 8)>; /* SD1CD */

		};



		sd1-ctrl {

			pinmux = <RZG3E_PORT_PINMUX(G, 0, 1)>, /* SD1CLK */

				 <RZG3E_PORT_PINMUX(G, 1, 1)>; /* SD1CMD */

		};



		sd1-data {

			pinmux = <RZG3E_PORT_PINMUX(G, 2, 1)>, /* SD1DAT0 */

				 <RZG3E_PORT_PINMUX(G, 3, 1)>, /* SD1DAT1 */

				 <RZG3E_PORT_PINMUX(G, 4, 1)>, /* SD1DAT2 */

				 <RZG3E_PORT_PINMUX(G, 5, 1)>; /* SD1DAT3 */

		};

	};

};



&scif0 {

	pinctrl-0 = <&scif_pins>;

	pinctrl-names = "default";

};



&sdhi1 {

	pinctrl-0 = <&sdhi1_pins>;

	pinctrl-1 = <&sdhi1_pins>;

	pinctrl-names = "default", "state_uhs";



	vmmc-supply = <&reg_3p3v>;

	vqmmc-supply = <&vqmmc_sd1_pvdd>;

};

arch/arm64/boot/dts/renesas/renesas-smarc2.dtsi

+18 −0
Original line number Diff line number Diff line
@@ -5,6 +5,15 @@ 
 * Copyright (C) 2024 Renesas Electronics Corp.

 */



/*

 * Please set the switch position SW_OPT_MUX.1 on the carrier board and the

 * corresponding macro SW_SDIO_M2E on the board DTS:

 *

 * SW_SDIO_M2E:

 *     0 - SMARC SDIO signal is connected to uSD1

 *     1 - SMARC SDIO signal is connected to M.2 Key E connector

 */



/ {

	model = "Renesas RZ SMARC Carrier-II Board";

	compatible = "renesas,smarc2-evk";
@@ -16,9 +25,18 @@ chosen { 


	aliases {

		serial3 = &scif0;

		mmc1 = &sdhi1;

	};

};



&scif0 {

	status = "okay";

};



&sdhi1 {

	bus-width = <4>;

	sd-uhs-sdr50;

	sd-uhs-sdr104;



	status = "okay";

};