openwrt/target/linux/mediatek/dts/mt7981b-unielec-u7981-01-nand.dts

// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
/*
 * Copyright (C) 2023 Allen Zhao <[email protected]>
 */

/dts-v1/;
#include "mt7981b-unielec-u7981-01.dtsi"
/ {
	model = "Unielec U7981-01 (NAND)";
	compatible = "unielec,u7981-01-nand", "mediatek,mt7981";
};

&spi0 {
	pinctrl-names = "default";
	pinctrl-0 = <&spi0_flash_pins>;
	status = "okay";
	spi_nand: spi_nand@0 {
		#address-cells = <1>;
		#size-cells = <1>;
		compatible = "spi-nand";
		reg = <0>;
		spi-max-frequency = <52000000>;
		spi-tx-buswidth = <4>;
		spi-rx-buswidth = <4>;

		mediatek,nmbm;
		mediatek,bmt-max-ratio = <1>;
		mediatek,bmt-max-reserved-blocks = <64>;
		partitions {
			compatible = "fixed-partitions";
			#address-cells = <1>;
			#size-cells = <1>;

			partition@0 {
				label = "bl2";
				reg = <0x00000 0x0100000>;
				read-only;
			};

			partition@100000 {
				label = "u-boot-env";
				reg = <0x0100000 0x0080000>;
			};

			factory: partition@180000 {
				label = "factory";
				reg = <0x180000 0x200000>;
				read-only;

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

					eeprom_factory_0: eeprom@0 {
						reg = <0x0 0x1000>;
					};

					macaddr_factory_1000: macaddr@1000 {
						compatible = "mac-base";
						reg = <0x1000 0x6>;
						#nvmem-cell-cells = <1>;
					};
				};
			};

			partition@380000 {
				label = "fip";
				reg = <0x380000 0x0200000>;
			};

			partition@580000 {
				label = "ubi";
				reg = <0x580000 0x4000000>;
			};
		};
	};
};

&pio {
	spi0_flash_pins: spi0-pins {
		mux {
			function = "spi";
			groups = "spi0", "spi0_wp_hold";
		};

		conf-pu {
			pins = "SPI0_CS", "SPI0_HOLD", "SPI0_WP";
			drive-strength = <8>;
			mediatek,pull-up-adv = <0>; /* bias-disable */
		};

		conf-pd {
			pins = "SPI0_CLK", "SPI0_MOSI", "SPI0_MISO";
			drive-strength = <8>;
			mediatek,pull-up-adv = <0>; /* bias-disable */
		};
	};
};

&gmac0 {
	nvmem-cells = <&macaddr_factory_1000 0>;
	nvmem-cell-names = "mac-address";
};

&gmac1 {
	nvmem-cells = <&macaddr_factory_1000 1>;
	nvmem-cell-names = "mac-address";
};

&wifi {
	nvmem-cells = <&eeprom_factory_0>;
	nvmem-cell-names = "eeprom";
	status = "okay";
};