linux-kernel - [PATCH v4 3/4] arm64: dts: morello: Add support for soc dts

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Message-ID: <20250103181623.1980433-4-vincenzo.frascino@arm.com>
Date: Fri,  3 Jan 2025 18:16:22 +0000
From: Vincenzo Frascino <vincenzo.frascino@....com>
To: devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Cc: Vincenzo Frascino <vincenzo.frascino@....com>,
	Linus Walleij <linus.walleij@...aro.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Liviu Dudau <liviu.dudau@....com>,
	Sudeep Holla <sudeep.holla@....com>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Russell King <linux@...linux.org.uk>
Subject: [PATCH v4 3/4] arm64: dts: morello: Add support for soc dts

The Morello architecture is an experimental extension to Armv8.2-A,
which extends the AArch64 state with the principles proposed in
version 7 of the Capability Hardware Enhanced RISC Instructions
(CHERI) ISA.

Introduce Morello SoC dts.

Signed-off-by: Vincenzo Frascino <vincenzo.frascino@....com>
---
 arch/arm64/boot/dts/arm/Makefile        |  1 +
 arch/arm64/boot/dts/arm/morello-sdp.dts | 30 +++++++++++++++++++++++++
 2 files changed, 31 insertions(+)
 create mode 100644 arch/arm64/boot/dts/arm/morello-sdp.dts

diff --git a/arch/arm64/boot/dts/arm/Makefile b/arch/arm64/boot/dts/arm/Makefile
index d908e96d7ddc..869667bef7c0 100644
--- a/arch/arm64/boot/dts/arm/Makefile
+++ b/arch/arm64/boot/dts/arm/Makefile
@@ -7,3 +7,4 @@ dtb-$(CONFIG_ARCH_VEXPRESS) += rtsm_ve-aemv8a.dtb
 dtb-$(CONFIG_ARCH_VEXPRESS) += vexpress-v2f-1xv7-ca53x2.dtb
 dtb-$(CONFIG_ARCH_VEXPRESS) += fvp-base-revc.dtb
 dtb-$(CONFIG_ARCH_VEXPRESS) += corstone1000-fvp.dtb corstone1000-mps3.dtb
+dtb-$(CONFIG_ARCH_VEXPRESS) += morello-sdp.dtb
diff --git a/arch/arm64/boot/dts/arm/morello-sdp.dts b/arch/arm64/boot/dts/arm/morello-sdp.dts
new file mode 100644
index 000000000000..2b7ef49ea1a0
--- /dev/null
+++ b/arch/arm64/boot/dts/arm/morello-sdp.dts
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
+/*
+ * Copyright (c) 2021-2024, Arm Limited. All rights reserved.
+
+ */
+
+/dts-v1/;
+#include "morello.dtsi"
+
+/ {
+	model = "Arm Morello System Development Platform";
+	compatible = "arm,morello-sdp", "arm,morello";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+};
+
+&i2c0 {
+	clock-frequency = <100000>;
+	status = "okay";
+};
+
+&uart0 {
+	status = "okay";
+};
-- 
2.43.0