u-boot/arch/arm/dts/mt7986a-bpi-r3-sd.dts

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (c) 2021 MediaTek Inc.
 * Author: Sam Shih <sam.shih@mediatek.com>
 */

/dts-v1/;
#include "mt7986.dtsi"
#include <dt-bindings/gpio/gpio.h>

/ {
	#address-cells = <1>;
	#size-cells = <1>;
	model = "BananaPi BPi-R3";
	compatible = "mediatek,mt7986", "mediatek,mt7986-sd-rfb";

	chosen {
		stdout-path = &uart0;
		tick-timer = &timer0;
	};

	memory@40000000 {
		device_type = "memory";
		reg = <0x40000000 0x80000000>;
	};

	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;
	};

	keys {
		compatible = "gpio-keys";

		factory {
			label = "reset";
			gpios = <&gpio 9 GPIO_ACTIVE_LOW>;
		};

		wps {
			label = "wps";
			gpios = <&gpio 10 GPIO_ACTIVE_LOW>;
		};
	};

	leds {
		compatible = "gpio-leds";

		led_status_green: green {
			label = "green:status";
			gpios = <&gpio 69 GPIO_ACTIVE_HIGH>;
		};

		led_status_blue: blue {
			label = "blue:status";
			gpios = <&gpio 86 GPIO_ACTIVE_HIGH>;
		};
	};

};

&uart0 {
	status = "okay";
};

&uart1 {
	pinctrl-names = "default";
	pinctrl-0 = <&uart1_pins>;
	status = "disabled";
};

&eth {
	status = "okay";
	mediatek,gmac-id = <0>;
	phy-mode = "2500base-x";
	mediatek,switch = "mt7531";
	reset-gpios = <&gpio 5 GPIO_ACTIVE_HIGH>;

	fixed-link {
		speed = <2500>;
		full-duplex;
	};
};

&pinctrl {
	spic_pins: spi1-pins-func-1 {
		mux {
			function = "spi";
			groups = "spi1_2";
		};
	};

	uart1_pins: spi1-pins-func-3 {
		mux {
			function = "uart";
			groups = "uart1_2";
		};
	};

	pwm_pins: pwm0-pins-func-1 {
		mux {
			function = "pwm";
			groups = "pwm0";
		};
	};

	mmc0_pins_default: mmc0default {
		mux {
			function = "flash";
			groups =  "emmc_51";
		};

		conf-cmd-dat {
			pins = "EMMC_DATA_0", "EMMC_DATA_1", "EMMC_DATA_2",
			       "EMMC_DATA_3", "EMMC_DATA_4", "EMMC_DATA_5",
			       "EMMC_DATA_6", "EMMC_DATA_7", "EMMC_CMD";
			input-enable;
			drive-strength = <MTK_DRIVE_4mA>;
			bias-pull-up = <MTK_PUPD_SET_R1R0_01>;
		};

		conf-clk {
			pins = "EMMC_CK";
			drive-strength = <MTK_DRIVE_6mA>;
			bias-pull-down = <MTK_PUPD_SET_R1R0_10>;
		};

		conf-dsl {
			pins = "EMMC_DSL";
			bias-pull-down = <MTK_PUPD_SET_R1R0_10>;
		};

		conf-rst {
			pins = "EMMC_RSTB";
			drive-strength = <MTK_DRIVE_4mA>;
			bias-pull-up = <MTK_PUPD_SET_R1R0_01>;
		};
	};

	spi_flash_pins: spi0-pins-func-1 {
		mux {
			function = "flash";
			groups = "spi0", "spi0_wp_hold";
		};

		conf-pu {
			pins = "SPI2_CS", "SPI2_HOLD", "SPI2_WP";
			drive-strength = <MTK_DRIVE_8mA>;
			bias-pull-up = <MTK_PUPD_SET_R1R0_00>;
		};

		conf-pd {
			pins = "SPI2_CLK", "SPI2_MOSI", "SPI2_MISO";
			drive-strength = <MTK_DRIVE_8mA>;
			bias-pull-down = <MTK_PUPD_SET_R1R0_00>;
		};
	};
};

&pwm {
	pinctrl-names = "default";
	pinctrl-0 = <&pwm_pins>;
	status = "okay";
};

&spi0 {
	#address-cells = <1>;
	#size-cells = <0>;
	pinctrl-names = "default";
	pinctrl-0 = <&spi_flash_pins>;
	status = "okay";
	must_tx;
	enhance_timing;
	dma_ext;
	ipm_design;
	support_quad;
	tick_dly = <1>;
	sample_sel = <0>;

	spi_nor@0 {
		compatible = "jedec,spi-nor";
		reg = <0>;
		spi-max-frequency = <52000000>;

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

			partition@0 {
				label = "bl2";
				reg = <0x0 0x40000>;
			};

			partition@40000 {
				label = "u-boot-env";
				reg = <0x40000 0x40000>;
			};

			partition@80000 {
				label = "reserved";
				reg = <0x80000 0x80000>;
			};

			partition@100000 {
				label = "fip";
				reg = <0x100000 0x80000>;
			};

			partition@180000 {
				label = "recovery";
				reg = <0x180000 0xa80000>;
			};

			partition@c00000 {
				label = "fit";
				reg = <0xc00000 0x1400000>;
			};
		};
	};

	spi_nand@1 {
		compatible = "spi-nand";
		reg = <1>;
		spi-max-frequency = <52000000>;

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

			partition@0 {
				label = "bl2";
				reg = <0x0 0x80000>;
			};

			partition@80000 {
				label = "factory";
				reg = <0x80000 0x300000>;
			};

			partition@380000 {
				label = "fip";
				reg = <0x380000 0x200000>;
			};

			partition@580000 {
				label = "ubi";
				reg = <0x580000 0x7a80000>;
			};
		};
	};
};

&watchdog {
	status = "disabled";
};

&mmc0 {
	pinctrl-names = "default";
	pinctrl-0 = <&mmc0_pins_default>;
	bus-width = <4>;
	max-frequency = <52000000>;
	cap-sd-highspeed;
	r_smpl = <1>;
	vmmc-supply = <&reg_3p3v>;
	vqmmc-supply = <&reg_3p3v>;
	status = "okay";
};