xref: /linux/arch/arm/boot/dts/microchip/at91-ariag25.dts (revision 34dc1baba215b826e454b8d19e4f24adbeb7d00d) 
1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * at91-ariag25.dts - Device Tree file for Acme Systems Aria G25 (AT91SAM9G25 based)
4 *
5 * Copyright (C) 2013 Douglas Gilbert <dgilbert@interlog.com>,
6 *                    Robert Nelson <robertcnelson@gmail.com>
7 */
8/dts-v1/;
9#include "at91sam9g25.dtsi"
10
11/ {
12	model = "Acme Systems Aria G25";
13	compatible = "acme,ariag25", "atmel,at91sam9x5ek",
14		     "atmel,at91sam9x5", "atmel,at91sam9";
15
16	aliases {
17		serial5 = &uart0;
18		serial6 = &uart1;
19	};
20
21	chosen {
22		bootargs = "console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait";
23	};
24
25	memory@20000000 {
26		/* 128 MB, change this for 256 MB revision */
27		reg = <0x20000000 0x8000000>;
28	};
29
30	clocks {
31		slow_xtal {
32			clock-frequency = <32768>;
33		};
34
35		main_xtal {
36			clock-frequency = <12000000>;
37		};
38	};
39
40	leds {
41		compatible = "gpio-leds";
42
43		/* little green LED in middle of Aria G25 module */
44		aria_led {
45			label = "aria_led";
46			gpios = <&pioB 8 GPIO_ACTIVE_HIGH>; /* PB8 */
47			linux,default-trigger = "heartbeat";
48		};
49
50	};
51
52	onewire {
53		compatible = "w1-gpio";
54		gpios = <&pioA 21 GPIO_ACTIVE_LOW>;
55		pinctrl-names = "default";
56		pinctrl-0 = <&pinctrl_w1_0>;
57	};
58};
59
60&adc0 {
61	status = "okay";
62	atmel,adc-channels-used = <0xf>;
63};
64
65&dbgu {
66	status = "okay";
67};
68
69&i2c0 {
70	status = "okay";
71};
72
73&i2c1 {
74	status = "okay";
75};
76
77/* TWD2+TCLK2 hidden behind ethernet, so no i2c2 */
78
79&macb0 {
80	phy-mode = "rmii";
81	/*
82	 * following can be overwritten by bootloader:
83	 * for example u-boot 'ftd set' command
84	 */
85	local-mac-address = [00 00 00 00 00 00];
86	status = "okay";
87};
88
89
90&mmc0 {
91	/* N.B. Aria has no SD card detect (CD), assumed present */
92
93	pinctrl-0 = <
94		&pinctrl_mmc0_slot0_clk_cmd_dat0
95		&pinctrl_mmc0_slot0_dat1_3>;
96	pinctrl-names = "default";
97	status = "okay";
98
99	slot@0 {
100		reg = <0>;
101		bus-width = <4>;
102	};
103};
104
105&pinctrl {
106	w1_0 {
107		pinctrl_w1_0: w1_0-0 {
108			atmel,pins = <0 21 0x0 0x1>; /* PA21 PIO, pull-up */
109		};
110	};
111};
112
113&rtc {
114	status = "okay";
115};
116
117&tcb0 {
118	timer@0 {
119		compatible = "atmel,tcb-timer";
120		reg = <0>;
121	};
122
123	timer@1 {
124		compatible = "atmel,tcb-timer";
125		reg = <1>;
126	};
127};
128
129/*
130 * UART0/1 pins are marked as GPIO on
131 * Aria documentation.
132 * Change to "okay" if you need additional serial ports
133 */
134&uart0 {
135	status = "disabled";
136};
137
138&uart1 {
139	status = "disabled";
140};
141
142&usart0 {
143	pinctrl-0 = <&pinctrl_usart0
144		     &pinctrl_usart0_rts
145		     &pinctrl_usart0_cts>;
146	status = "okay";
147};
148
149&usart1 {
150	pinctrl-0 = <&pinctrl_usart1
151		     /* &pinctrl_usart1_rts */
152		     /* &pinctrl_usart1_cts */
153		    >;
154	status = "okay";
155};
156
157&usart2 {
158	/* cannot activate RTS2+CTS2, clash with
159	 * ethernet on PB0 and PB1 */
160	pinctrl-0 = <&pinctrl_usart2>;
161	status = "okay";
162};
163
164&usart3 {
165	compatible = "atmel,at91sam9260-usart";
166	reg = <0xf8028000 0x200>;
167	interrupts = <8 4 5>;
168	pinctrl-names = "default";
169	pinctrl-0 = <&pinctrl_usart3
170		     /* &pinctrl_usart3_rts */
171		     /* &pinctrl_usart3_cts */
172		    >;
173	status = "okay";
174};
175
176&usb0 {
177	status = "okay";
178	num-ports = <3>;
179};
180
181&usb1 {
182	status = "okay";
183};
184