Commit ed8efe50 authored by Biju Das's avatar Biju Das Committed by Geert Uytterhoeven
Browse files

arm64: dts: renesas: rzg2ul-smarc-som: Enable eMMC on SMARC platform 



RZ/G2UL SoM has both 64GB eMMC and microSD connected to SDHI0.

Both these interfaces are mutually exclusive and the SD0 device
selection is based on SW1[2] on SoM module.

Set SW1[2] to position OFF for selecting eMMC
Set SW1[2] to position ON for selecting microSD

This patch enables eMMC on RZ/G2UL SMARC platform by default.

Signed-off-by: default avatarBiju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: default avatarLad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20220402081328.26292-7-biju.das.jz@bp.renesas.com


Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
parent a74a0bf3

arch/arm64/boot/dts/renesas/rzg2ul-smarc-som.dtsi

+104 −0
Original line number Diff line number Diff line
@@ -19,6 +19,15 @@ 
		reg = <0x0 0x48000000 0x0 0x38000000>;

	};



	reg_1p8v: regulator0 {

		compatible = "regulator-fixed";

		regulator-name = "fixed-1.8V";

		regulator-min-microvolt = <1800000>;

		regulator-max-microvolt = <1800000>;

		regulator-boot-on;

		regulator-always-on;

	};



	reg_3p3v: regulator1 {

		compatible = "regulator-fixed";

		regulator-name = "fixed-3.3V";
@@ -27,8 +36,103 @@ 
		regulator-boot-on;

		regulator-always-on;

	};



#if !(SW_SW0_DEV_SEL)

	vccq_sdhi0: regulator-vccq-sdhi0 {

		compatible = "regulator-gpio";



		regulator-name = "SDHI0 VccQ";

		regulator-min-microvolt = <1800000>;

		regulator-max-microvolt = <3300000>;

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

		regulator-boot-on;

		gpios = <&pinctrl RZG2L_GPIO(6, 2) GPIO_ACTIVE_HIGH>;

		regulator-always-on;

	};

#endif

};



&extal_clk {

	clock-frequency = <24000000>;

};



&pinctrl {

	sdhi0_emmc_pins: sd0emmc {

		sd0_emmc_data {

			pins = "SD0_DATA0", "SD0_DATA1", "SD0_DATA2", "SD0_DATA3",

			       "SD0_DATA4", "SD0_DATA5", "SD0_DATA6", "SD0_DATA7";

			power-source = <1800>;

		};



		sd0_emmc_ctrl {

			pins = "SD0_CLK", "SD0_CMD";

			power-source = <1800>;

		};



		sd0_emmc_rst {

			pins = "SD0_RST#";

			power-source = <1800>;

		};

	};



	sdhi0_pins: sd0 {

		sd0_data {

			pins = "SD0_DATA0", "SD0_DATA1", "SD0_DATA2", "SD0_DATA3";

			power-source = <3300>;

		};



		sd0_ctrl {

			pins = "SD0_CLK", "SD0_CMD";

			power-source = <3300>;

		};



		sd0_mux {

			pinmux = <RZG2L_PORT_PINMUX(0, 0, 1)>; /* SD0_CD */

		};

	};



	sdhi0_pins_uhs: sd0_uhs {

		sd0_data_uhs {

			pins = "SD0_DATA0", "SD0_DATA1", "SD0_DATA2", "SD0_DATA3";

			power-source = <1800>;

		};



		sd0_ctrl_uhs {

			pins = "SD0_CLK", "SD0_CMD";

			power-source = <1800>;

		};



		sd0_mux_uhs {

			pinmux = <RZG2L_PORT_PINMUX(0, 0, 1)>; /* SD0_CD */

		};

	};

};



#if (SW_SW0_DEV_SEL)

&sdhi0 {

	pinctrl-0 = <&sdhi0_emmc_pins>;

	pinctrl-1 = <&sdhi0_emmc_pins>;

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



	vmmc-supply = <&reg_3p3v>;

	vqmmc-supply = <&reg_1p8v>;

	bus-width = <8>;

	mmc-hs200-1_8v;

	non-removable;

	fixed-emmc-driver-type = <1>;

	status = "okay";

};

#else

&sdhi0 {

	pinctrl-0 = <&sdhi0_pins>;

	pinctrl-1 = <&sdhi0_pins_uhs>;

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



	vmmc-supply = <&reg_3p3v>;

	vqmmc-supply = <&vccq_sdhi0>;

	bus-width = <4>;

	sd-uhs-sdr50;

	sd-uhs-sdr104;

	status = "okay";

};

#endif

arch/arm64/boot/dts/renesas/rzg2ul-smarc.dtsi

+8 −0
Original line number Diff line number Diff line
@@ -5,6 +5,14 @@ 
 * Copyright (C) 2022 Renesas Electronics Corp.

 */



/*

 * DIP-Switch SW1 setting

 * 1 : High; 0: Low

 * SW1-2 : SW_SD0_DEV_SEL	(0: uSD; 1: eMMC)

 * Please change below macros according to SW1 setting

 */

#define SW_SW0_DEV_SEL	1



#include "rzg2ul-smarc-som.dtsi"

#include "rzg2ul-smarc-pinfunction.dtsi"

#include "rz-smarc-common.dtsi"