linux-zen-server/arch/arm64/boot/dts/renesas/rzg2lc-smarc-som.dtsi

// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
/*
 * Device Tree Source for the RZ/G2LC SMARC SOM common parts
 *
 * Copyright (C) 2021 Renesas Electronics Corp.
 */

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

/ {
	aliases {
		ethernet0 = &eth0;
	};

	chosen {
		bootargs = "ignore_loglevel rw root=/dev/nfs ip=on";
	};

	memory@48000000 {
		device_type = "memory";
		/* first 128MB is reserved for secure area. */
		reg = <0x0 0x48000000 0x0 0x38000000>;
	};

	reg_1p8v: regulator-1p8v {
		compatible = "regulator-fixed";
		regulator-name = "fixed-1.8V";
		regulator-min-microvolt = <1800000>;
		regulator-max-microvolt = <1800000>;
		regulator-boot-on;
		regulator-always-on;
	};

	reg_3p3v: regulator-3p3v {
		compatible = "regulator-fixed";
		regulator-name = "fixed-3.3V";
		regulator-min-microvolt = <3300000>;
		regulator-max-microvolt = <3300000>;
		regulator-boot-on;
		regulator-always-on;
	};

	reg_1p1v: regulator-vdd-core {
		compatible = "regulator-fixed";
		regulator-name = "fixed-1.1V";
		regulator-min-microvolt = <1100000>;
		regulator-max-microvolt = <1100000>;
		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;
	};
};

&eth0 {
	pinctrl-0 = <&eth0_pins>;
	pinctrl-names = "default";
	phy-handle = <&phy0>;
	phy-mode = "rgmii-id";
	status = "okay";

	phy0: ethernet-phy@7 {
		compatible = "ethernet-phy-id0022.1640",
			     "ethernet-phy-ieee802.3-c22";
		reg = <7>;
		rxc-skew-psec = <2400>;
		txc-skew-psec = <2400>;
		rxdv-skew-psec = <0>;
		txdv-skew-psec = <0>;
		rxd0-skew-psec = <0>;
		rxd1-skew-psec = <0>;
		rxd2-skew-psec = <0>;
		rxd3-skew-psec = <0>;
		txd0-skew-psec = <0>;
		txd1-skew-psec = <0>;
		txd2-skew-psec = <0>;
		txd3-skew-psec = <0>;
	};
};

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

&gpu {
	mali-supply = <&reg_1p1v>;
};

&ostm1 {
	status = "okay";
};

&ostm2 {
	status = "okay";
};

&pinctrl {
	eth0_pins: eth0 {
		pinmux = <RZG2L_PORT_PINMUX(28, 1, 1)>, /* ET0_LINKSTA */
			 <RZG2L_PORT_PINMUX(27, 1, 1)>, /* ET0_MDC */
			 <RZG2L_PORT_PINMUX(28, 0, 1)>, /* ET0_MDIO */
			 <RZG2L_PORT_PINMUX(20, 0, 1)>, /* ET0_TXC */
			 <RZG2L_PORT_PINMUX(20, 1, 1)>, /* ET0_TX_CTL */
			 <RZG2L_PORT_PINMUX(20, 2, 1)>, /* ET0_TXD0 */
			 <RZG2L_PORT_PINMUX(21, 0, 1)>, /* ET0_TXD1 */
			 <RZG2L_PORT_PINMUX(21, 1, 1)>, /* ET0_TXD2 */
			 <RZG2L_PORT_PINMUX(22, 0, 1)>, /* ET0_TXD3 */
			 <RZG2L_PORT_PINMUX(24, 0, 1)>, /* ET0_RXC */
			 <RZG2L_PORT_PINMUX(24, 1, 1)>, /* ET0_RX_CTL */
			 <RZG2L_PORT_PINMUX(25, 0, 1)>, /* ET0_RXD0 */
			 <RZG2L_PORT_PINMUX(25, 1, 1)>, /* ET0_RXD1 */
			 <RZG2L_PORT_PINMUX(26, 0, 1)>, /* ET0_RXD2 */
			 <RZG2L_PORT_PINMUX(26, 1, 1)>; /* ET0_RXD3 */
	};

	gpio-sd0-pwr-en-hog {
		gpio-hog;
		gpios = <RZG2L_GPIO(18, 1) GPIO_ACTIVE_HIGH>;
		output-high;
		line-name = "gpio_sd0_pwr_en";
	};

	qspi0_pins: qspi0 {
		qspi0-data {
			pins = "QSPI0_IO0", "QSPI0_IO1", "QSPI0_IO2", "QSPI0_IO3";
			power-source = <1800>;
		};

		qspi0-ctrl {
			pins = "QSPI0_SPCLK", "QSPI0_SSL", "QSPI_RESET#";
			power-source = <1800>;
		};
	};

	/*
	 * 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 OFF position to enable 64 GB eMMC
	 * SW1[2] should be at position ON to enable uSD card CN3
	 */
	gpio-sd0-dev-sel-hog {
		gpio-hog;
		gpios = <RZG2L_GPIO(40, 2) GPIO_ACTIVE_HIGH>;
		output-high;
		line-name = "gpio_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(18, 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(18, 0, 1)>; /* SD0_CD */
		};
	};
};

&sbc {
	pinctrl-0 = <&qspi0_pins>;
	pinctrl-names = "default";
	status = "okay";

	flash@0 {
		compatible = "micron,mt25qu512a", "jedec,spi-nor";
		reg = <0>;
		m25p,fast-read;
		spi-max-frequency = <50000000>;
		spi-rx-bus-width = <4>;

		partitions {
			compatible = "fixed-partitions";
			#address-cells = <1>;
			#size-cells = <1>;

			boot@0 {
				reg = <0x00000000 0x2000000>;
				read-only;
			};
			user@2000000 {
				reg = <0x2000000 0x2000000>;
			};
		};
	};
};

#if (!SW_SD0_DEV_SEL)
&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 SW_SD0_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";
};
#endif

&wdt0 {
	status = "okay";
	timeout-sec = <60>;
};

&wdt1 {
	status = "okay";
	timeout-sec = <60>;
};