diff --git a/buildroot-external/board/hardkernel/kernel-amlogic.config b/buildroot-external/board/hardkernel/kernel-amlogic.config
index 742b6a24e..1aac72e9e 100644
--- a/buildroot-external/board/hardkernel/kernel-amlogic.config
+++ b/buildroot-external/board/hardkernel/kernel-amlogic.config
@@ -4954,7 +4954,7 @@ CONFIG_RTC_DRV_RK808=m
 # CONFIG_RTC_DRV_PCF8523 is not set
 # CONFIG_RTC_DRV_PCF85063 is not set
 # CONFIG_RTC_DRV_PCF85363 is not set
-# CONFIG_RTC_DRV_PCF8563 is not set
+CONFIG_RTC_DRV_PCF8563=y
 # CONFIG_RTC_DRV_PCF8583 is not set
 # CONFIG_RTC_DRV_M41T80 is not set
 # CONFIG_RTC_DRV_BQ32K is not set
diff --git a/buildroot-external/board/hardkernel/patches/linux/0015-arm64-dts-meson-add-RTC-to-ODROID-N2-boards.patch b/buildroot-external/board/hardkernel/patches/linux/0015-arm64-dts-meson-add-RTC-to-ODROID-N2-boards.patch
new file mode 100644
index 000000000..620d94e81
--- /dev/null
+++ b/buildroot-external/board/hardkernel/patches/linux/0015-arm64-dts-meson-add-RTC-to-ODROID-N2-boards.patch
@@ -0,0 +1,52 @@
+From 9a736bfb2ee71ed09e5f37ec4a506e7bd2a80bf5 Mon Sep 17 00:00:00 2001
+Message-Id: <9a736bfb2ee71ed09e5f37ec4a506e7bd2a80bf5.1606127729.git.stefan@agner.ch>
+In-Reply-To: <59bbf3567b02c36edfa4ee013d7e7e8c492756f2.1606127729.git.stefan@agner.ch>
+References: <59bbf3567b02c36edfa4ee013d7e7e8c492756f2.1606127729.git.stefan@agner.ch>
+From: Stefan Agner <stefan@agner.ch>
+Date: Mon, 16 Nov 2020 23:11:02 +0100
+Subject: [PATCH 15/15] arm64: dts: meson: add RTC to ODROID-N2 boards
+
+All ODROID-N2 boards come with a NXP PCF8563TS RTC connected to I2C bus
+3. This is the RTC which is connected to the on-board RTC backup battery.
+Use it as primary RTC.
+
+Signed-off-by: Stefan Agner <stefan@agner.ch>
+---
+ .../boot/dts/amlogic/meson-g12b-odroid-n2.dtsi     | 14 ++++++++++++++
+ 1 file changed, 14 insertions(+)
+
+diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
+index 6982632ae646..40390feba053 100644
+--- a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
++++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
+@@ -13,6 +13,8 @@ / {
+ 	aliases {
+ 		serial0 = &uart_AO;
+ 		ethernet0 = &ethmac;
++		rtc0 = &board_rtc;
++		rtc1 = &vrtc;
+ 	};
+ 
+ 	dioo2133: audio-amplifier-0 {
+@@ -471,6 +473,18 @@ hdmi_tx_tmds_out: endpoint {
+ 	};
+ };
+ 
++&i2c3 {
++	status = "okay";
++	pinctrl-0 = <&i2c3_sda_a_pins>, <&i2c3_sck_a_pins>;
++	pinctrl-names = "default";
++	clock-frequency = <400000>;
++
++	board_rtc: rtc@51 {
++		compatible = "nxp,pcf8563";
++		reg = <0x51>;
++	};
++};
++
+ &ir {
+ 	status = "okay";
+ 	pinctrl-0 = <&remote_input_ao_pins>;
+-- 
+2.29.2
+
diff --git a/buildroot-external/meta b/buildroot-external/meta
index 1feb993ab..dbc8f032c 100644
--- a/buildroot-external/meta
+++ b/buildroot-external/meta
@@ -1,5 +1,5 @@
 VERSION_MAJOR=4
-VERSION_BUILD=17
+VERSION_BUILD=18
 
 HASSOS_NAME="HassOS"
 HASSOS_ID="hassos"