arm64: dts: Add base DTS file for bcmbca device Asus GT-AX6000

[ Upstream commit f3f575c4be ]

It's a home router with 1 GiB of RAM, 6 Ethernet ports, 2 USB ports.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Acked-by: William Zhang <william.zhang@broadcom.com>
Link: https://lore.kernel.org/r/20220713200351.28526-2-zajec5@gmail.com
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Stable-dep-of: 5cca024494 ("arm64: dts: broadcom: bcmbca: bcm4908: fix NAND interrupt name")
Signed-off-by: Sasha Levin <sashal@kernel.org>

arch/arm64/boot/dts/broadcom/bcmbca/Makefile

@@ -1,4 +1,6 @@
 # SPDX-License-Identifier: GPL-2.0
-dtb-$(CONFIG_ARCH_BCMBCA) += bcm94912.dtb \
+dtb-$(CONFIG_ARCH_BCMBCA) += \
+				bcm4912-asus-gt-ax6000.dtb \
+				bcm94912.dtb \
 				bcm963158.dtb \
 				bcm96858.dtb

arch/arm64/boot/dts/broadcom/bcmbca/bcm4912-asus-gt-ax6000.dts

@@ -0,0 +1,19 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+
+/dts-v1/;
+
+#include "bcm4912.dtsi"
+
+/ {
+	compatible = "asus,gt-ax6000", "brcm,bcm4912", "brcm,bcmbca";
+	model = "Asus GT-AX6000";
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x00 0x00 0x00 0x40000000>;
+	};
+};
+
+&uart0 {
+	status = "okay";
+};