~sircmpwn/linux

linux/arch/arm/boot/dts/socfpga_arria10_socdk.dtsi -rw-r--r-- 3.2 KiB
a99d8080 — Linus Torvalds Linux 5.4-rc6 11 months ago
                                                                                
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// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2015 Altera Corporation <www.altera.com>
 */
#include "socfpga_arria10.dtsi"

/ {
	model = "Altera SOCFPGA Arria 10";
	compatible = "altr,socfpga-arria10", "altr,socfpga";

	aliases {
		ethernet0 = &gmac0;
		serial0 = &uart1;
	};

	chosen {
		bootargs = "earlyprintk";
		stdout-path = "serial0:115200n8";
	};

	memory@0 {
		name = "memory";
		device_type = "memory";
		reg = <0x0 0x40000000>; /* 1GB */
	};

	a10leds {
		compatible = "gpio-leds";

		a10sr_led0 {
			label = "a10sr-led0";
			gpios = <&a10sr_gpio 0 1>;
		};

		a10sr_led1 {
			label = "a10sr-led1";
			gpios = <&a10sr_gpio 1 1>;
		};

		a10sr_led2 {
			label = "a10sr-led2";
			gpios = <&a10sr_gpio 2 1>;
		};

		a10sr_led3 {
			label = "a10sr-led3";
			gpios = <&a10sr_gpio 3 1>;
		};
	};

	ref_033v: 033-v-ref {
		compatible = "regulator-fixed";
		regulator-name = "0.33V";
		regulator-min-microvolt = <330000>;
		regulator-max-microvolt = <330000>;
	};

	soc {
		clkmgr@ffd04000 {
			clocks {
				osc1 {
					clock-frequency = <25000000>;
				};
			};
		};
	};
};

&gmac0 {
	phy-mode = "rgmii";
	phy-addr = <0xffffffff>; /* probe for phy addr */

	/*
	 * These skews assume the user's FPGA design is adding 600ps of delay
	 * for TX_CLK on Arria 10.
	 *
	 * All skews are offset since hardware skew values for the ksz9031
	 * range from a negative skew to a positive skew.
	 * See the micrel-ksz90x1.txt Documentation file for details.
	 */
	txd0-skew-ps = <0>; /* -420ps */
	txd1-skew-ps = <0>; /* -420ps */
	txd2-skew-ps = <0>; /* -420ps */
	txd3-skew-ps = <0>; /* -420ps */
	rxd0-skew-ps = <420>; /* 0ps */
	rxd1-skew-ps = <420>; /* 0ps */
	rxd2-skew-ps = <420>; /* 0ps */
	rxd3-skew-ps = <420>; /* 0ps */
	txen-skew-ps = <0>; /* -420ps */
	txc-skew-ps = <1860>; /* 960ps */
	rxdv-skew-ps = <420>; /* 0ps */
	rxc-skew-ps = <1680>; /* 780ps */
	max-frame-size = <3800>;
	status = "okay";
};

&gpio1 {
	status = "okay";
};

&spi1 {
	status = "okay";

	resource-manager@0 {
		compatible = "altr,a10sr";
		reg = <0>;
		spi-max-frequency = <100000>;
		/* low-level active IRQ at GPIO1_5 */
		interrupt-parent = <&portb>;
		interrupts = <5 IRQ_TYPE_LEVEL_LOW>;
		interrupt-controller;
		#interrupt-cells = <2>;

		a10sr_gpio: gpio-controller {
			compatible = "altr,a10sr-gpio";
			gpio-controller;
			#gpio-cells = <2>;
		};

		a10sr_rst: reset-controller {
			compatible = "altr,a10sr-reset";
			#reset-cells = <1>;
		};
	};
};

&i2c1 {
	status = "okay";

	/*
	 * adjust the falling times to decrease the i2c frequency to 50Khz
	 * because the LCD module does not work at the standard 100Khz
	 */
	clock-frequency = <100000>;
	i2c-sda-falling-time-ns = <6000>;
	i2c-scl-falling-time-ns = <6000>;

	adc@14 {
		compatible = "lltc,ltc2497";
		reg = <0x14>;
		vref-supply = <&ref_033v>;
	};

	adc@16 {
		compatible = "lltc,ltc2497";
		reg = <0x16>;
		vref-supply = <&ref_033v>;
	};

	eeprom@51 {
		compatible = "atmel,24c32";
		reg = <0x51>;
		pagesize = <32>;
	};

	rtc@68 {
		compatible = "dallas,ds1339";
		reg = <0x68>;
	};

	ltc@5c {
		compatible = "ltc2977";
		reg = <0x5c>;
	};
};

&uart1 {
	status = "okay";
};

&usb0 {
	status = "okay";
	disable-over-current;
};

&watchdog1 {
	status = "okay";
};