ARM: dts: meson8b: odroid-c1: prepare support for the RTC (09ee9516) · Commits · 戴 / test

The Odroid-C1 has the 32.768 kHz oscillator (X3 in the schematics) which is required for the RTC. A battery can be connected separately (to the BT1 header) - then the "rtc" node can be enabled manually. By default the RTC is disabled because the boards typically come without the RTC battery. Signed-off-by:

Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by:

Kevin Hilman <khilman@baylibre.com>

arch/arm/boot/dts/meson8b-odroidc1.dts

+14 −0

Original line number	Diff line number	Diff line
		@@ -124,6 +124,14 @@
		io-channels = <&saradc 8>;
		};

		rtc32k_xtal: rtc32k-xtal-clk {
		/* X3 in the schematics */
		compatible = "fixed-clock";
		clock-frequency = <32768>;
		clock-output-names = "RTC32K";
		#clock-cells = <0>;
		};

		vcc_1v8: regulator-vcc-1v8 {
		/*
		* RICHTEK RT9179 configured for a fixed output voltage of
		@@ -345,6 +353,12 @@
		clock-names = "clkin0";
		};

		&rtc {
		/* needs to be enabled manually when a battery is connected */
		clocks = <&rtc32k_xtal>;
		vdd-supply = <&vdd_rtc>;
		};

		&uart_AO {
		status = "okay";
		pinctrl-0 = <&uart_ao_a_pins>;

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