r8a7742-iwg21m.dtsi

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    1 // SPDX-License-Identifier: GPL-2.0
    2 /*
    3  * Device Tree Source for the iWave RZ/G1H Qseven SOM
    4  *
    5  * Copyright (C) 2020 Renesas Electronics Corp.
    6  */
    7 
    8 #include "r8a7742.dtsi"
    9 #include <dt-bindings/gpio/gpio.h>
   10 
   11 / {
   12         compatible = "iwave,g21m", "renesas,r8a7742";
   13 
   14         memory@40000000 {
   15                 device_type = "memory";
   16                 reg = <0 0x40000000 0 0x40000000>;
   17         };
   18 
   19         memory@200000000 {
   20                 device_type = "memory";
   21                 reg = <2 0x00000000 0 0x40000000>;
   22         };
   23 
   24         reg_3p3v: 3p3v {
   25                 compatible = "regulator-fixed";
   26                 regulator-name = "3P3V";
   27                 regulator-min-microvolt = <3300000>;
   28                 regulator-max-microvolt = <3300000>;
   29                 regulator-always-on;
   30                 regulator-boot-on;
   31         };
   32 };
   33 
   34 &extal_clk {
   35         clock-frequency = <20000000>;
   36 };
   37 
   38 &gpio0 {
   39         /* GP0_18 set low to select QSPI. Doing so will disable VIN2 */
   40         qspi-en-hog {
   41                 gpio-hog;
   42                 gpios = <18 GPIO_ACTIVE_HIGH>;
   43                 output-low;
   44                 line-name = "QSPI_EN";
   45         };
   46 };
   47 
   48 &i2c0 {
   49         pinctrl-0 = <&i2c0_pins>;
   50         pinctrl-names = "default";
   51 
   52         status = "okay";
   53         clock-frequency = <400000>;
   54 
   55         rtc@68 {
   56                 compatible = "ti,bq32000";
   57                 reg = <0x68>;
   58                 interrupt-parent = <&gpio1>;
   59                 interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
   60         };
   61 };
   62 
   63 &mmcif1 {
   64         pinctrl-0 = <&mmc1_pins>;
   65         pinctrl-names = "default";
   66 
   67         vmmc-supply = <&reg_3p3v>;
   68         bus-width = <4>;
   69         non-removable;
   70         status = "okay";
   71 };
   72 
   73 &pfc {
   74         i2c0_pins: i2c0 {
   75                 groups = "i2c0";
   76                 function = "i2c0";
   77         };
   78 
   79         mmc1_pins: mmc1 {
   80                 groups = "mmc1_data4", "mmc1_ctrl";
   81                 function = "mmc1";
   82         };
   83 
   84         qspi_pins: qspi {
   85                 groups = "qspi_ctrl", "qspi_data2";
   86                 function = "qspi";
   87         };
   88 };
   89 
   90 &qspi {
   91         pinctrl-0 = <&qspi_pins>;
   92         pinctrl-names = "default";
   93 
   94         status = "okay";
   95 
   96         flash: flash@0 {
   97                 compatible = "sst,sst25vf016b", "jedec,spi-nor";
   98                 reg = <0>;
   99                 spi-max-frequency = <50000000>;
  100                 m25p,fast-read;
  101                 spi-cpol;
  102                 spi-cpha;
  103 
  104                 partitions {
  105                         compatible = "fixed-partitions";
  106                         #address-cells = <1>;
  107                         #size-cells = <1>;
  108 
  109                         partition@0 {
  110                                 label = "bootloader";
  111                                 reg = <0x00000000 0x000c0000>;
  112                                 read-only;
  113                         };
  114                         partition@c0000 {
  115                                 label = "env";
  116                                 reg = <0x000c0000 0x00002000>;
  117                         };
  118                         partition@c2000 {
  119                                 label = "user";
  120                                 reg = <0x000c2000 0x0013e000>;
  121                         };
  122                 };
  123         };
  124 };

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sys/contrib/device-tree/src/arm/r8a7742-iwg21m.dtsi