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      1 // SPDX-License-Identifier: GPL-2.0
      2 /*
      3  * Device Tree Source for the Eagle board
      4  *
      5  * Copyright (C) 2016-2017 Renesas Electronics Corp.
      6  * Copyright (C) 2017 Cogent Embedded, Inc.
      7  */
      8 
      9 /dts-v1/;
     10 #include "r8a77970.dtsi"
     11 #include <dt-bindings/gpio/gpio.h>
     12 
     13 / {
     14 	model = "Renesas Eagle board based on r8a77970";
     15 	compatible = "renesas,eagle", "renesas,r8a77970";
     16 
     17 	aliases {
     18 		serial0 = &scif0;
     19 		ethernet0 = &avb;
     20 		spi0 = &rpc;
     21 	};
     22 
     23 	chosen {
     24 		bootargs = "ignore_loglevel rw root=/dev/nfs ip=dhcp";
     25 		stdout-path = "serial0:115200n8";
     26 	};
     27 
     28 	memory@48000000 {
     29 		device_type = "memory";
     30 		/* first 128MB is reserved for secure area. */
     31 		reg = <0x0 0x48000000 0x0 0x38000000>;
     32 	};
     33 };
     34 
     35 &avb {
     36 	pinctrl-0 = <&avb0_pins>;
     37 	pinctrl-names = "default";
     38 	renesas,no-ether-link;
     39 	phy-handle = <&phy0>;
     40 	phy-mode = "rgmii-id";
     41 	status = "okay";
     42 
     43 	phy0: ethernet-phy@0 {
     44 		rxc-skew-ps = <1500>;
     45 		reg = <0>;
     46 		interrupt-parent = <&gpio1>;
     47 		interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
     48 		reset-gpios = <&gpio1 16 GPIO_ACTIVE_LOW>;
     49 	};
     50 };
     51 
     52 &extal_clk {
     53 	clock-frequency = <16666666>;
     54 };
     55 
     56 &extalr_clk {
     57 	clock-frequency = <32768>;
     58 };
     59 
     60 &i2c0 {
     61 	pinctrl-0 = <&i2c0_pins>;
     62 	pinctrl-names = "default";
     63 
     64 	status = "okay";
     65 	clock-frequency = <400000>;
     66 
     67 	io_expander: gpio@20 {
     68 		compatible = "onnn,pca9654";
     69 		reg = <0x20>;
     70 		gpio-controller;
     71 		#gpio-cells = <2>;
     72 	};
     73 };
     74 
     75 &pfc {
     76 	avb0_pins: avb {
     77 		mux {
     78 			groups = "avb0_link", "avb0_mdio", "avb0_rgmii", "avb0_txcrefclk";
     79 			function = "avb0";
     80 		};
     81 	};
     82 
     83 	i2c0_pins: i2c0 {
     84 		groups = "i2c0";
     85 		function = "i2c0";
     86 	};
     87 
     88 	scif0_pins: scif0 {
     89 		groups = "scif0_data";
     90 		function = "scif0";
     91 	};
     92 };
     93 
     94 &rpc {
     95 	num-cs = <1>;
     96 	status = "okay";
     97 	spi-max-frequency = <50000000>;
     98 	#address-cells = <1>;
     99 	#size-cells = <0>;
    100 
    101 	flash0: spi-flash@0 {
    102 		#address-cells = <1>;
    103 		#size-cells = <1>;
    104 		compatible = "s25fs512s", "spi-flash", "jedec,spi-nor";
    105 		spi-max-frequency = <50000000>;
    106 		spi-tx-bus-width = <1>;
    107 		spi-rx-bus-width = <1>;
    108 		reg = <0>;
    109 		status = "okay";
    110 	};
    111 };
    112 
    113 &rwdt {
    114 	timeout-sec = <60>;
    115 	status = "okay";
    116 };
    117 
    118 &scif0 {
    119 	pinctrl-0 = <&scif0_pins>;
    120 	pinctrl-names = "default";
    121 
    122 	status = "okay";
    123 };
    124