arm64: dts: amazon: add Amazon's Annapurna Labs Alpine v3 support

This patch adds the initial support for the Amazon's Annapurna Labs
Alpine v3 Soc and Evaluation Platform (EVP).

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ronen Krupnik <[email protected]>
Signed-off-by: Talel Shenhar <[email protected]>
Signed-off-by: Hanna Hawa <[email protected]>
Acked-by: Antoine Tenart <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>

Author: Ronen Krupnik

arch/arm64/boot/dts/amazon/Makefile

@@ -1,2 +1,3 @@
 # SPDX-License-Identifier: GPL-2.0-only
 dtb-$(CONFIG_ARCH_ALPINE)	+= alpine-v2-evp.dtb
+dtb-$(CONFIG_ARCH_ALPINE)	+= alpine-v3-evp.dtb

arch/arm64/boot/dts/amazon/alpine-v3-evp.dts

@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2020 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ */
+
+#include "alpine-v3.dtsi"
+
+/ {
+	model = "Amazon's Annapurna Labs Alpine v3 Evaluation Platform (EVP)";
+	compatible = "amazon,al-alpine-v3-evp", "amazon,al-alpine-v3";
+
+	aliases {
+		serial0 = &uart0;
+		serial1 = &uart1;
+		serial2 = &uart2;
+		serial3 = &uart3;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&uart0 { status = "okay"; };