linux-kernel - [PATCH 03/14] arm64: zynqmp: Add an OP-TEE node to the device tree

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Date: Mon, 8 Jan 2024 16:39:14 +0100
From: Michal Simek <michal.simek@....com>
To: <linux-kernel@...r.kernel.org>, <monstr@...str.eu>,
	<michal.simek@...inx.com>, <git@...inx.com>
CC: Ilias Apalodimas <ilias.apalodimas@...aro.org>, Conor Dooley
	<conor+dt@...nel.org>, Krzysztof Kozlowski
	<krzysztof.kozlowski+dt@...aro.org>, Rob Herring <robh+dt@...nel.org>, "open
 list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
	<devicetree@...r.kernel.org>, "moderated list:ARM/ZYNQ ARCHITECTURE"
	<linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH 03/14] arm64: zynqmp: Add an OP-TEE node to the device tree

From: Ilias Apalodimas <ilias.apalodimas@...aro.org>

Since the zynqmp boards can run upstream OP-TEE, and having the DT node
present doesn't cause any side effects add it in case someone tries to
load OP-TEE.

Signed-off-by: Ilias Apalodimas <ilias.apalodimas@...aro.org>
Signed-off-by: Michal Simek <michal.simek@....com>
---

 arch/arm64/boot/dts/xilinx/zynqmp.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
index a9a23cf50196..f72fb4ea3e11 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
+++ b/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
@@ -180,6 +180,11 @@ psci {
 	};
 
 	firmware {
+		optee: optee  {
+			compatible = "linaro,optee-tz";
+			method = "smc";
+		};
+
 		zynqmp_firmware: zynqmp-firmware {
 			compatible = "xlnx,zynqmp-firmware";
 			#power-domain-cells = <1>;
-- 
2.36.1