u-boot-brain/arch/mips/dts/mrvl,octeon-ebb7304.dts

// SPDX-License-Identifier: GPL-2.0+
/*
 * Marvell / Cavium Inc. EVB CN7300
 */

/dts-v1/;

#include "mrvl,cn73xx.dtsi"
#include <dt-bindings/gpio/gpio.h>

/ {
	model = "cavium,ebb7304";
	compatible = "cavium,ebb7304";

	aliases {
		mmc0 = &mmc0;
		mmc1 = &mmc1;
		serial0 = &uart0;
		spi0 = &spi;
	};

	regulators {
		compatible = "simple-bus";
		#address-cells = <1>;
		#size-cells = <0>;

		/* Power on GPIO 8, active high */
		reg_mmc_3v3: regulator@0 {
			compatible = "regulator-fixed";
			reg = <0>;
			regulator-name = "mmc-3v3";
			regulator-min-microvolt = <3300000>;
			regulator-max-microvolt = <3300000>;
			gpio = <&gpio 8 GPIO_ACTIVE_HIGH>;
			enable-active-high;
		};
	};

	chosen {
		stdout-path = &uart0;
	};
};

&bootbus {
	/*
	 * bootbus CS0 for CFI flash is remapped (0x1fc0.0000 -> 1f40.0000)
	 * as the initial size is too small for the 8MiB flash device
	 */
	ranges = <0 0  0       0x1f400000  0xc00000>,
		 <1 0  0x10000 0x10000000  0>,
		 <2 0  0x10000 0x20000000  0>,
		 <3 0  0x10000 0x30000000  0>,
		 <4 0  0       0x1d020000  0x10000>,
		 <5 0  0x10000 0x50000000  0>,
		 <6 0  0x10000 0x60000000  0>,
		 <7 0  0x10000 0x70000000  0>;

	cavium,cs-config@0 {
		compatible = "cavium,octeon-3860-bootbus-config";
		cavium,cs-index = <0>;
		cavium,t-adr  = <10>;
		cavium,t-ce   = <50>;
		cavium,t-oe   = <50>;
		cavium,t-we   = <35>;
		cavium,t-rd-hld = <25>;
		cavium,t-wr-hld = <35>;
		cavium,t-pause  = <0>;
		cavium,t-wait   = <50>;
		cavium,t-page   = <30>;
		cavium,t-rd-dly = <0>;
		cavium,page-mode = <1>;
		cavium,pages     = <8>;
		cavium,bus-width = <8>;
	};

	cavium,cs-config@4 {
		compatible = "cavium,octeon-3860-bootbus-config";
		cavium,cs-index = <4>;
		cavium,t-adr  = <10>;
		cavium,t-ce   = <10>;
		cavium,t-oe   = <160>;
		cavium,t-we   = <100>;
		cavium,t-rd-hld = <10>;
		cavium,t-wr-hld = <0>;
		cavium,t-pause  = <50>;
		cavium,t-wait   = <50>;
		cavium,t-page   = <10>;
		cavium,t-rd-dly = <10>;
		cavium,pages     = <0>;
		cavium,bus-width = <8>;
	};

	flash0: nor@0,0 {
		compatible = "cfi-flash";
		reg = <0 0 0x800000>;
		#address-cells = <1>;
		#size-cells = <1>;
		partition@0 {
			label = "bootloader";
			reg = <0 0x340000>;
			read-only;
		};
		partition@300000 {
			label = "storage";
			reg = <0x340000 0x4be000>;
		};
		partition@7fe000 {
			label = "environment";
			reg = <0x7fe000 0x2000>;
			read-only;
		};
	};
};

&i2c0 {
	u-boot,dm-pre-reloc;	/* Needed early for DDR SPD EEPROM */
	clock-frequency = <100000>;

	rtc@68 {
		compatible = "dallas,ds1337";
		reg = <0x68>;
	};

	tlv-eeprom@56 {
		compatible = "atmel,24c256", "microchip,24lc256";
		reg = <0x56>;
		pagesize = <64>;
	};
};

&i2c1 {
	u-boot,dm-pre-reloc;	/* Needed early for DDR SPD EEPROM */
	clock-frequency = <100000>;
};

&spi {
	flash@0 {
		compatible = "micron,n25q128a11", "jedec,spi-nor";
		spi-max-frequency = <2000000>;
		reg = <0>;
	};
};

/* USB 0 */
&usb0 {
	status = "okay";
	/*
	 * Power is specified by three parts:
	 * 1) GPIO handle (must be &gpio)
	 * 2) GPIO pin number
	 * 3) Active high (0) or active low (1)
	 */
	power = <&gpio 20 0>;
};

/* USB 1 */
&usb1 {
	status = "okay";
	/*
	 * Power is specified by three parts:
	 * 1) GPIO handle (must be &gpio)
	 * 2) GPIO pin number
	 * 3) Active high (0) or active low (1)
	 */
	power = <&gpio 21 0>;
};

&mmc {
	status = "okay";

	/* The board has two MMC slots
	 * If both are occupied, the speed must be reduced,
	 * as extra data-line load increases slew time,
	 * and dat-skew adjustment does not help significantly.
	 */
	mmc0: mmc-slot@0 {
		compatible = "cavium,octeon-6130-mmc-slot", "mmc-slot";
		reg = <0>;
		vqmmc-supply = <&reg_mmc_3v3>;
		voltage-ranges = <3300 3300>;
		//spi-max-frequency = <52000000>; // just one
		spi-max-frequency = <37000000>; // both slots
		/* bus width can be 1, 4 or 8 */
		bus-width = <8>; /* new std property */
		cavium,bus-max-width = <8>; /* custom property */
		wp-gpios = <&gpio 22 0>; /* active high */
		cd-gpios = <&gpio 23 1>; /* active low */
	};

	mmc1: mmc-slot@1 {
		compatible = "cavium,octeon-6130-mmc-slot", "mmc-slot";
		reg = <1>;
		vqmmc-supply = <&reg_mmc_3v3>;
		voltage-ranges = <3300 3300>;
		//spi-max-frequency = <52000000>; // just one
		spi-max-frequency = <37000000>; // both slots
		/* bus width can be 1, 4 or 8 */
		bus-width = <8>; /* new std property */
		cavium,bus-max-width = <8>; /* custom property */
		wp-gpios = <&gpio 24 0>; /* active high */
		cd-gpios = <&gpio 25 1>; /* active low */
	};
};