arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi

   1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
   2 /*
   3  * Device Tree Source for the Spider CPU board
   4  *
   5  * Copyright (C) 2021 Renesas Electronics Corp.
   6  */
   7
   8 #include <dt-bindings/gpio/gpio.h>
   9 #include <dt-bindings/leds/common.h>
  10
  11 #include "r8a779f0.dtsi"
  12
  13 / {
  14         model = "Renesas Spider CPU board";
  15         compatible = "renesas,spider-cpu", "renesas,r8a779f0";
  16
  17         aliases {
  18                 serial0 = &hscif0;
  19                 serial1 = &scif0;
  20         };
  21
  22         chosen {
  23                 bootargs = "ignore_loglevel rw root=/dev/nfs ip=on";
  24                 stdout-path = "serial0:1843200n8";
  25         };
  26
  27         leds {
  28                 compatible = "gpio-leds";
  29
  30                 led-7 {
  31                         gpios = <&gpio0 11 GPIO_ACTIVE_HIGH>;
  32                         color = <LED_COLOR_ID_GREEN>;
  33                         function = LED_FUNCTION_INDICATOR;
  34                         function-enumerator = <7>;
  35                 };
  36
  37                 led-8 {
  38                         gpios = <&gpio0 14 GPIO_ACTIVE_HIGH>;
  39                         color = <LED_COLOR_ID_GREEN>;
  40                         function = LED_FUNCTION_INDICATOR;
  41                         function-enumerator = <8>;
  42                 };
  43         };
  44
  45         memory@48000000 {
  46                 device_type = "memory";
  47                 /* first 128MB is reserved for secure area. */
  48                 reg = <0x0 0x48000000 0x0 0x78000000>;
  49         };
  50
  51         memory@480000000 {
  52                 device_type = "memory";
  53                 reg = <0x4 0x80000000 0x0 0x80000000>;
  54         };
  55
  56         rc21012_pci: clk-rc21012-pci {
  57                 compatible = "fixed-clock";
  58                 clock-frequency = <100000000>;
  59                 #clock-cells = <0>;
  60         };
  61
  62         rc21012_ufs: clk-rc21012-ufs {
  63                 compatible = "fixed-clock";
  64                 clock-frequency = <38400000>;
  65                 #clock-cells = <0>;
  66         };
  67
  68         reg_1p8v: regulator-1p8v {
  69                 compatible = "regulator-fixed";
  70                 regulator-name = "fixed-1.8V";
  71                 regulator-min-microvolt = <1800000>;
  72                 regulator-max-microvolt = <1800000>;
  73                 regulator-boot-on;
  74                 regulator-always-on;
  75         };
  76
  77         reg_3p3v: regulator-3p3v {
  78                 compatible = "regulator-fixed";
  79                 regulator-name = "fixed-3.3V";
  80                 regulator-min-microvolt = <3300000>;
  81                 regulator-max-microvolt = <3300000>;
  82                 regulator-boot-on;
  83                 regulator-always-on;
  84         };
  85 };
  86
  87 &extal_clk {
  88         clock-frequency = <20000000>;
  89 };
  90
  91 &extalr_clk {
  92         clock-frequency = <32768>;
  93 };
  94
  95 &hscif0 {
  96         pinctrl-0 = <&hscif0_pins>;
  97         pinctrl-names = "default";
  98
  99         uart-has-rtscts;
 100         status = "okay";
 101 };
 102
 103 &i2c0 {
 104         pinctrl-0 = <&i2c0_pins>;
 105         pinctrl-names = "default";
 106
 107         status = "okay";
 108         clock-frequency = <400000>;
 109
 110         gpio_exp_20: gpio@20 {
 111                 compatible = "ti,tca9554";
 112                 reg = <0x20>;
 113                 gpio-controller;
 114                 #gpio-cells = <2>;
 115
 116                 rc21012-gpio2-hog {
 117                         gpio-hog;
 118                         gpios = <5 GPIO_ACTIVE_LOW>;
 119                         output-high;
 120                 };
 121         };
 122 };
 123
 124 &i2c4 {
 125         pinctrl-0 = <&i2c4_pins>;
 126         pinctrl-names = "default";
 127
 128         status = "okay";
 129         clock-frequency = <400000>;
 130
 131         eeprom@50 {
 132                 compatible = "rohm,br24g01", "atmel,24c01";
 133                 label = "cpu-board";
 134                 reg = <0x50>;
 135                 pagesize = <8>;
 136         };
 137 };
 138
 139 /*
 140  * This board also has a microSD slot which we will not support upstream
 141  * because we cannot directly switch voltages in software.
 142  */
 143 &mmc0 {
 144         pinctrl-0 = <&mmc_pins>;
 145         pinctrl-1 = <&mmc_pins>;
 146         pinctrl-names = "default", "state_uhs";
 147
 148         vmmc-supply = <&reg_3p3v>;
 149         vqmmc-supply = <&reg_1p8v>;
 150         mmc-hs200-1_8v;
 151         mmc-hs400-1_8v;
 152         bus-width = <8>;
 153         no-sd;
 154         no-sdio;
 155         non-removable;
 156         full-pwr-cycle-in-suspend;
 157         status = "okay";
 158 };
 159
 160 &pcie0_clkref {
 161         compatible = "gpio-gate-clock";
 162         clocks = <&rc21012_pci>;
 163         enable-gpios = <&gpio2 15 GPIO_ACTIVE_LOW>;
 164         /delete-property/ clock-frequency;
 165 };
 166
 167 &pciec0 {
 168         reset-gpio = <&gpio_exp_20 0 GPIO_ACTIVE_LOW>;
 169         status = "okay";
 170 };
 171
 172 &pfc {
 173         pinctrl-0 = <&scif_clk_pins>;
 174         pinctrl-names = "default";
 175
 176         hscif0_pins: hscif0 {
 177                 groups = "hscif0_data", "hscif0_ctrl";
 178                 function = "hscif0";
 179         };
 180
 181         i2c0_pins: i2c0 {
 182                 groups = "i2c0";
 183                 function = "i2c0";
 184         };
 185
 186         i2c4_pins: i2c4 {
 187                 groups = "i2c4";
 188                 function = "i2c4";
 189         };
 190
 191         mmc_pins: mmc {
 192                 groups = "mmc_data8", "mmc_ctrl", "mmc_ds";
 193                 function = "mmc";
 194                 power-source = <1800>;
 195         };
 196
 197         scif0_pins: scif0 {
 198                 groups = "scif0_data", "scif0_ctrl";
 199                 function = "scif0";
 200         };
 201
 202         scif_clk_pins: scif_clk {
 203                 groups = "scif_clk";
 204                 function = "scif_clk";
 205         };
 206 };
 207
 208 &rwdt {
 209         timeout-sec = <60>;
 210         status = "okay";
 211 };
 212
 213 &scif0 {
 214         pinctrl-0 = <&scif0_pins>;
 215         pinctrl-names = "default";
 216
 217         uart-has-rtscts;
 218         status = "okay";
 219 };
 220
 221 &scif_clk {
 222         clock-frequency = <24000000>;
 223 };
 224
 225 &ufs {
 226         status = "okay";
 227 };
 228
 229 &ufs30_clk {
 230         compatible = "gpio-gate-clock";
 231         clocks = <&rc21012_ufs>;
 232         enable-gpios = <&gpio_exp_20 4 GPIO_ACTIVE_LOW>;
 233         /delete-property/ clock-frequency;
 234 };