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};