ds3231-rtc-i2c1.dts

// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
//
// Copyright (C) 2020 Chen-Yu Tsai <wens@csie.org>
//
// DS3231 RTC module on RPi-compatible GPIO header (the I2C pins next to 3.3V)
// This is I2C1 on Allwinner A33/R16 boards such as Banana Pi M2M,
// A64 boards such as Bananapi M64, and Pine64.
// Though for the Pine64, you may consider using the onboard RTC w/ battery.
//
// This compensates for the lack of battery-backed RTC on many boards

#ifdef __DTO_TEST__
#include <arm/sun8i-r16-bananapi-m2m.dts>
#else
/dts-v1/;
/plugin/;
#endif

&{/} {
	aliases {
		/* Make the external RTC the default one */
		rtc0 = <&ds3231>;
		rtc1 = <&rtc>;
	};
};

&i2c1 {
	status = "okay";

	ds3231: rtc@68 {
		compatible = "maxim,ds3231";
		reg = <0x68>;
	};
};