arch/arm/dts/r8a77970-eagle.dts

   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         };
  21
  22         chosen {
  23                 bootargs = "ignore_loglevel rw root=/dev/nfs ip=dhcp";
  24                 stdout-path = "serial0:115200n8";
  25         };
  26
  27         memory@48000000 {
  28                 device_type = "memory";
  29                 /* first 128MB is reserved for secure area. */
  30                 reg = <0x0 0x48000000 0x0 0x38000000>;
  31         };
  32 };
  33
  34 &avb {
  35         pinctrl-0 = <&avb0_pins>;
  36         pinctrl-names = "default";
  37         renesas,no-ether-link;
  38         phy-handle = <&phy0>;
  39         phy-mode = "rgmii-id";
  40         status = "okay";
  41
  42         phy0: ethernet-phy@0 {
  43                 rxc-skew-ps = <1500>;
  44                 reg = <0>;
  45                 interrupt-parent = <&gpio1>;
  46                 interrupts = <17 IRQ_TYPE_LEVEL_LOW>;
  47                 reset-gpios = <&gpio1 16 GPIO_ACTIVE_LOW>;
  48         };
  49 };
  50
  51 &extal_clk {
  52         clock-frequency = <16666666>;
  53 };
  54
  55 &extalr_clk {
  56         clock-frequency = <32768>;
  57 };
  58
  59 &i2c0 {
  60         pinctrl-0 = <&i2c0_pins>;
  61         pinctrl-names = "default";
  62
  63         status = "okay";
  64         clock-frequency = <400000>;
  65
  66         io_expander: gpio@20 {
  67                 compatible = "onnn,pca9654";
  68                 reg = <0x20>;
  69                 gpio-controller;
  70                 #gpio-cells = <2>;
  71         };
  72 };
  73
  74 &pfc {
  75         avb0_pins: avb {
  76                 mux {
  77                         groups = "avb0_link", "avb0_mdio", "avb0_rgmii", "avb0_txcrefclk";
  78                         function = "avb0";
  79                 };
  80         };
  81
  82         i2c0_pins: i2c0 {
  83                 groups = "i2c0";
  84                 function = "i2c0";
  85         };
  86
  87         scif0_pins: scif0 {
  88                 groups = "scif0_data";
  89                 function = "scif0";
  90         };
  91 };
  92
  93 &rwdt {
  94         timeout-sec = <60>;
  95         status = "okay";
  96 };
  97
  98 &scif0 {
  99         pinctrl-0 = <&scif0_pins>;
 100         pinctrl-names = "default";
 101
 102         status = "okay";
 103 };