xref: /openbmc/linux/scripts/dtc/include-prefixes/arm64/renesas/rzg2l-smarc-som.dtsi (revision a60a311c)

// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
/*
 * Device Tree Source for the RZ/G2L SMARC SOM common parts
 *
 * Copyright (C) 2021 Renesas Electronics Corp.
 */

#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/pinctrl/rzg2l-pinctrl.h>

/* SW1[2] should be at position 2/OFF to enable 64 GB eMMC */
#define EMMC	1

/*
 * To enable uSD card on CN3,
 * SW1[2] should be at position 3/ON.
 * Disable eMMC by setting "#define EMMC	0" above.
 */
#define SDHI	(!EMMC)

/ {
	memory@48000000 {
		device_type = "memory";
		/* first 128MB is reserved for secure area. */
		reg = <0x0 0x48000000 0x0 0x78000000>;
	};

	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";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-boot-on;
		regulator-always-on;
	};

	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(39, 0) GPIO_ACTIVE_HIGH>;
		regulator-always-on;
	};
};

&adc {
	pinctrl-0 = <&adc_pins>;
	pinctrl-names = "default";
	status = "okay";

	/delete-node/ channel@6;
	/delete-node/ channel@7;
};

&extal_clk {
	clock-frequency = <24000000>;
};

&pinctrl {
	adc_pins: adc {
		pinmux = <RZG2L_PORT_PINMUX(9, 0, 2)>; /* ADC_TRG */
	};

	gpio-sd0-pwr-en-hog {
		gpio-hog;
		gpios = <RZG2L_GPIO(4, 1) GPIO_ACTIVE_HIGH>;
		output-high;
		line-name = "gpio_sd0_pwr_en";
	};

	/*
	 * SD0 device selection is XOR between GPIO_SD0_DEV_SEL and SW1[2]
	 * The below switch logic can be used to select the device between
	 * eMMC and microSD, after setting GPIO_SD0_DEV_SEL to high in DT.
	 * SW1[2] should be at position 2/OFF to enable 64 GB eMMC
	 * SW1[2] should be at position 3/ON to enable uSD card CN3
	 */
	sd0-dev-sel-hog {
		gpio-hog;
		gpios = <RZG2L_GPIO(41, 1) GPIO_ACTIVE_HIGH>;
		output-high;
		line-name = "sd0_dev_sel";
	};

	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(47, 0, 2)>; /* 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(47, 0, 2)>; /* SD0_CD */
		};
	};
};

#if SDHI
&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

#if EMMC
&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";
};
#endif