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0001 // SPDX-License-Identifier: GPL-2.0-or-later
0002 /*
0003 * at91-foxg20.dts - Device Tree file for Acme Systems FoxG20 board
0004 *
0005 * Based on DT files for at91sam9g20ek evaluation board (AT91SAM9G20 SoC)
0006 *
0007 * Copyright (C) 2013 Douglas Gilbert <dgilbert@interlog.com>
0008 */
0009 /dts-v1/;
0010 #include "at91sam9g20.dtsi"
0011
0012 / {
0013 model = "Acme Systems FoxG20";
0014 compatible = "acme,foxg20", "atmel,at91sam9g20", "atmel,at91sam9";
0015
0016 chosen {
0017 bootargs = "console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait";
0018 };
0019
0020 memory@20000000 {
0021 reg = <0x20000000 0x4000000>;
0022 };
0023
0024 clocks {
0025 slow_xtal {
0026 clock-frequency = <32768>;
0027 };
0028
0029 main_xtal {
0030 clock-frequency = <18432000>;
0031 };
0032 };
0033
0034 ahb {
0035 apb {
0036 tcb0: timer@fffa0000 {
0037 timer@0 {
0038 compatible = "atmel,tcb-timer";
0039 reg = <0>, <1>;
0040 };
0041
0042 timer@2 {
0043 compatible = "atmel,tcb-timer";
0044 reg = <2>;
0045 };
0046 };
0047
0048 usb1: gadget@fffa4000 {
0049 atmel,vbus-gpio = <&pioC 6 GPIO_ACTIVE_HIGH>;
0050 status = "okay";
0051 };
0052
0053 mmc0: mmc@fffa8000 {
0054 pinctrl-0 = <
0055 &pinctrl_mmc0_clk
0056 &pinctrl_mmc0_slot1_cmd_dat0
0057 &pinctrl_mmc0_slot1_dat1_3>;
0058 pinctrl-names = "default";
0059 status = "okay";
0060
0061 slot@1 {
0062 reg = <1>;
0063 bus-width = <4>;
0064 };
0065 };
0066
0067 usart0: serial@fffb0000 {
0068 pinctrl-0 =
0069 <&pinctrl_usart0
0070 &pinctrl_usart0_rts
0071 &pinctrl_usart0_cts
0072 >;
0073 status = "okay";
0074 };
0075
0076 usart1: serial@fffb4000 {
0077 status = "okay";
0078 };
0079
0080 usart2: serial@fffb8000 {
0081 status = "okay";
0082 };
0083
0084 macb0: ethernet@fffc4000 {
0085 phy-mode = "rmii";
0086 status = "okay";
0087 };
0088
0089 usart3: serial@fffd0000 {
0090 status = "okay";
0091 };
0092
0093 uart0: serial@fffd4000 {
0094 status = "okay";
0095 };
0096
0097 uart1: serial@fffd8000 {
0098 status = "okay";
0099 };
0100
0101 dbgu: serial@fffff200 {
0102 status = "okay";
0103 };
0104
0105 pinctrl@fffff400 {
0106 board {
0107 pinctrl_pck0_as_mck: pck0_as_mck {
0108 atmel,pins =
0109 <AT91_PIOC 1 AT91_PERIPH_B AT91_PINCTRL_NONE>;
0110 };
0111 };
0112
0113 mmc0_slot1 {
0114 pinctrl_board_mmc0_slot1: mmc0_slot1-board {
0115 atmel,pins =
0116 <AT91_PIOC 9 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>; /* CD pin */
0117 };
0118 };
0119
0120 i2c0 {
0121 pinctrl_i2c0: i2c0-0 {
0122 atmel,pins =
0123 <AT91_PIOA 23 AT91_PERIPH_A AT91_PINCTRL_MULTI_DRIVE /* TWD (SDA), open drain */
0124 AT91_PIOA 24 AT91_PERIPH_A AT91_PINCTRL_MULTI_DRIVE>; /* TWCK (SCL), open drain */
0125 };
0126 };
0127 };
0128
0129 watchdog@fffffd40 {
0130 status = "okay";
0131 };
0132 };
0133
0134 usb0: ohci@500000 {
0135 num-ports = <2>;
0136 status = "okay";
0137 };
0138 };
0139
0140 i2c-gpio-0 {
0141 pinctrl-names = "default";
0142 pinctrl-0 = <&pinctrl_i2c0>;
0143 i2c-gpio,delay-us = <5>; /* ~85 kHz */
0144 status = "okay";
0145 };
0146
0147 leds {
0148 compatible = "gpio-leds";
0149
0150 /* red LED marked "PC7" near mini USB (device) receptacle */
0151 user_led {
0152 label = "user_led";
0153 gpios = <&pioC 7 GPIO_ACTIVE_HIGH>; /* PC7 */
0154 linux,default-trigger = "heartbeat";
0155 };
0156 };
0157
0158 gpio-keys {
0159 compatible = "gpio-keys";
0160
0161 button {
0162 label = "Button";
0163 gpios = <&pioC 4 GPIO_ACTIVE_LOW>;
0164 linux,code = <0x103>;
0165 wakeup-source;
0166 };
0167 };
0168 };
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