1 // SPDX-License-Identifier: GPL-2.0-only
3 * at91sam9g20ek_common.dtsi - Device Tree file for Atmel at91sam9g20ek board
5 * Copyright (C) 2012 Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
7 #include "at91sam9g20.dtsi"
8 #include <dt-bindings/input/input.h>
13 bootargs = "mem=64M root=/dev/mtdblock5 rw rootfstype=ubifs";
14 stdout-path = "serial0:115200n8";
18 reg = <0x20000000 0x4000000>;
23 clock-frequency = <32768>;
27 clock-frequency = <18432000>;
35 pinctrl_pck0_as_mck: pck0_as_mck {
37 <AT91_PIOC 1 AT91_PERIPH_B AT91_PINCTRL_NONE>; /* PC1 periph B */
43 pinctrl_board_mmc0_slot1: mmc0_slot1-board {
45 <AT91_PIOC 9 AT91_PERIPH_GPIO AT91_PINCTRL_PULL_UP_DEGLITCH>; /* PC9 gpio CD pin pull up and deglitch */
50 dbgu: serial@fffff200 {
54 tcb0: timer@fffa0000 {
56 compatible = "atmel,tcb-timer";
61 compatible = "atmel,tcb-timer";
66 usart0: serial@fffb0000 {
71 &pinctrl_usart0_dtr_dsr
77 usart1: serial@fffb4000 {
81 macb0: ethernet@fffc4000 {
86 usb1: gadget@fffa4000 {
87 atmel,vbus-gpio = <&pioC 5 GPIO_ACTIVE_HIGH>;
93 &pinctrl_board_mmc0_slot1
95 &pinctrl_mmc0_slot1_cmd_dat0
96 &pinctrl_mmc0_slot1_dat1_3>;
97 pinctrl-names = "default";
102 cd-gpios = <&pioC 9 GPIO_ACTIVE_HIGH>;
108 pinctrl-0 = <&pinctrl_ssc0_tx>;
112 cs-gpios = <0>, <&pioC 11 0>, <0>, <0>;
114 compatible = "atmel,at45", "atmel,dataflash";
115 spi-max-frequency = <50000000>;
121 atmel,wakeup-counter = <10>;
122 atmel,wakeup-rtt-timer;
126 atmel,rtt-rtc-time-reg = <&gpbr 0x0>;
134 gpbr: syscon@fffffd50 {
142 nand_controller: nand-controller {
144 pinctrl-0 = <&pinctrl_nand_cs &pinctrl_nand_rb>;
145 pinctrl-names = "default";
148 reg = <0x3 0x0 0x800000>;
149 rb-gpios = <&pioC 13 GPIO_ACTIVE_HIGH>;
150 cs-gpios = <&pioC 14 GPIO_ACTIVE_HIGH>;
151 nand-bus-width = <8>;
152 nand-ecc-mode = "soft";
154 label = "atmel_nand";
157 compatible = "fixed-partitions";
158 #address-cells = <1>;
162 label = "at91bootstrap";
168 reg = <0x20000 0x40000>;
172 label = "bareboxenv";
173 reg = <0x60000 0x20000>;
177 label = "bareboxenv2";
178 reg = <0x80000 0x20000>;
183 reg = <0xa0000 0x20000>;
188 reg = <0xc0000 0x400000>;
193 reg = <0x4c0000 0x7800000>;
198 reg = <0x7cc0000 0x8340000>;
215 compatible = "atmel,24c512";
220 compatible = "wm8731";
226 compatible = "gpio-keys";
230 gpios = <&pioA 30 GPIO_ACTIVE_LOW>;
231 linux,code = <0x103>;
237 gpios = <&pioA 31 GPIO_ACTIVE_LOW>;
238 linux,code = <KEY_PROG1>;
244 compatible = "atmel,at91sam9g20ek-wm8731-audio";
245 pinctrl-names = "default";
246 pinctrl-0 = <&pinctrl_pck0_as_mck>;
248 atmel,model = "wm8731 @ AT91SAMG20EK";
250 atmel,audio-routing =
254 atmel,ssc-controller = <&ssc0>;
255 atmel,audio-codec = <&wm8731>;