linux-kernel - [PATCH v4] arm64: dts: s32g: Add device tree information for the OCOTP driver

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Message-ID: <6ea7fede9642dad10a6270a07e052f7a726f9bd6.1757689031.git.dan.carpenter@linaro.org>
Date: Fri, 12 Sep 2025 18:03:22 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: Shawn Guo <shawnguo@...nel.org>
Cc: Chester Lin <chester62515@...il.com>,
	Matthias Brugger <mbrugger@...e.com>,
	Ghennadi Procopciuc <ghennadi.procopciuc@....nxp.com>,
	NXP S32 Linux Team <s32@....com>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>, Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	linux-arm-kernel@...ts.infradead.org, imx@...ts.linux.dev,
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH v4] arm64: dts: s32g: Add device tree information for the
 OCOTP driver

Add the device tree information for the S32G On Chip One-Time
Programmable Controller (OCOTP) chip.

Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
---
The other patches in this patch set were applied but this one needed to
be rebased.

v4: rebase on imx/dt64
v3: Add the device tree entry in the correct location based on
    the 0x400a4000 address.
v2: change "ocotp: ocotp@...a4000 {" to "ocotp: nvmem@...a4000 {"

 arch/arm64/boot/dts/freescale/s32g2.dtsi | 7 +++++++
 arch/arm64/boot/dts/freescale/s32g3.dtsi | 7 +++++++
 2 files changed, 14 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/s32g2.dtsi b/arch/arm64/boot/dts/freescale/s32g2.dtsi
index 3ff3b2ff09be..d167624d1f0c 100644
--- a/arch/arm64/boot/dts/freescale/s32g2.dtsi
+++ b/arch/arm64/boot/dts/freescale/s32g2.dtsi
@@ -325,6 +325,13 @@ usdhc0-200mhz-grp4 {
 			};
 		};
 
+		ocotp: nvmem@...a4000 {
+			compatible = "nxp,s32g2-ocotp";
+			reg = <0x400a4000 0x400>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+		};
+
 		swt0: watchdog@...00000 {
 			compatible = "nxp,s32g2-swt";
 			reg = <0x40100000 0x1000>;
diff --git a/arch/arm64/boot/dts/freescale/s32g3.dtsi b/arch/arm64/boot/dts/freescale/s32g3.dtsi
index 6292ae99883a..be3a582ebc1b 100644
--- a/arch/arm64/boot/dts/freescale/s32g3.dtsi
+++ b/arch/arm64/boot/dts/freescale/s32g3.dtsi
@@ -383,6 +383,13 @@ usdhc0-200mhz-grp4 {
 			};
 		};
 
+		ocotp: nvmem@...a4000 {
+			compatible = "nxp,s32g3-ocotp", "nxp,s32g2-ocotp";
+			reg = <0x400a4000 0x400>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+		};
+
 		swt0: watchdog@...00000 {
 			compatible = "nxp,s32g3-swt", "nxp,s32g2-swt";
 			reg = <0x40100000 0x1000>;
-- 
2.51.0