linux-kernel - [RFC PATCH 4/5] arm64: dts: imx93: Add node for OCOTP S400 NVMEM driver

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Message-ID: <20250416142715.1042363-5-frieder@fris.de>
Date: Wed, 16 Apr 2025 16:26:23 +0200
From: Frieder Schrempf <frieder@...s.de>
To: Peng Fan <peng.fan@....com>,
	Pankaj Gupta <pankaj.gupta@....com>,
	linux-arm-kernel@...ts.infradead.org,
	Conor Dooley <conor+dt@...nel.org>,
	devicetree@...r.kernel.org,
	imx@...ts.linux.dev,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	linux-kernel@...r.kernel.org,
	Rob Herring <robh@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Shawn Guo <shawnguo@...nel.org>
Cc: Frieder Schrempf <frieder.schrempf@...tron.de>,
	Carlos Song <carlos.song@....com>,
	Fabio Estevam <festevam@...il.com>,
	Frank Li <Frank.Li@....com>,
	Haibo Chen <haibo.chen@....com>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Shengjiu Wang <shengjiu.wang@....com>,
	Shenwei Wang <shenwei.wang@....com>,
	Xu Yang <xu.yang_2@....com>
Subject: [RFC PATCH 4/5] arm64: dts: imx93: Add node for OCOTP S400 NVMEM driver

From: Frieder Schrempf <frieder.schrempf@...tron.de>

This adds a node for the OCOTP NVMEM driver that uses the
ELE S400 API to access the fuse registers.

Signed-off-by: Frieder Schrempf <frieder.schrempf@...tron.de>
---
 arch/arm64/boot/dts/freescale/imx93.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx93.dtsi b/arch/arm64/boot/dts/freescale/imx93.dtsi
index 122519648d1b..12463cf6c214 100644
--- a/arch/arm64/boot/dts/freescale/imx93.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx93.dtsi
@@ -228,6 +228,11 @@ hsm0: secure-enclave {
 		mboxes = <&s4muap 0 0>, <&s4muap 1 0>;
 	};
 
+	ocotp-s400 {
+		compatible = "fsl,imx93-ocotp-s400";
+		secure-enclave = <&hsm0>;
+	};
+
 	mqs1: mqs1 {
 		compatible = "fsl,imx93-mqs";
 		gpr = <&aonmix_ns_gpr>;
-- 
2.49.0