ARM: dts: sun7i: Sync from Linux v5.18-rc1

Copy the devicetree source for the A20 SoC and all existing boards
verbatim from the Linux v5.18-rc1 tag.

This commit also adds the following new board devicetrees:
 - sun7i-a20-haoyu-marsboard.dts
 - sun7i-a20-linutronix-testbox-v2.dts
 - sun7i-a20-olinuxino-lime-emmc.dts

This update includes changes to the USB PHY detection GPIO properties
which are needed to convert that driver to use the DM GPIO framework.

Signed-off-by: Samuel Holland <samuel@sholland.org>
[Andre: fix Mele M5 U-Boot only DT]
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
diff --git a/arch/arm/dts/sun7i-a20-linutronix-testbox-v2.dts b/arch/arm/dts/sun7i-a20-linutronix-testbox-v2.dts
new file mode 100644
index 0000000..da5a2ee
--- /dev/null
+++ b/arch/arm/dts/sun7i-a20-linutronix-testbox-v2.dts
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright 2020 Linutronix GmbH
+ * Author: Benedikt Spranger <b.spranger@linutronix.de>
+ */
+
+/dts-v1/;
+#include "sun7i-a20-lamobo-r1.dts"
+
+/ {
+	model = "Lamobo R1";
+	compatible = "linutronix,testbox-v2", "lamobo,lamobo-r1", "allwinner,sun7i-a20";
+
+	leds {
+		led-opto1 {
+			label = "lamobo_r1:opto:powerswitch";
+			gpios = <&pio 7 3 GPIO_ACTIVE_HIGH>;
+		};
+
+		led-opto2 {
+			label = "lamobo_r1:opto:relay";
+			gpios = <&pio 7 5 GPIO_ACTIVE_HIGH>;
+		};
+	};
+};
+
+&i2c2 {
+	clock-frequency = <100000>;
+	status = "okay";
+
+	eeprom: eeprom@50 {
+		compatible = "atmel,24c08";
+		reg = <0x50>;
+		status = "okay";
+	};
+
+	atecc508a@60 {
+		compatible = "atmel,atecc508a";
+		reg = <0x60>;
+	};
+};
+
+&can0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&can_ph_pins>;
+	status = "okay";
+};