linux-kernel - [PATCH 4/4] nvmem: add bsec support to stm32mp25

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Message-ID: <20231117153310.4.I8fa60abf176f777721ee5beb2bad216f833ed31a@changeid>
Date:   Fri, 17 Nov 2023 15:33:37 +0100
From:   Patrick Delaunay <patrick.delaunay@...s.st.com>
To:     Alexandre TORGUE <alexandre.torgue@...s.st.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>
CC:     Patrick Delaunay <patrick.delaunay@...s.st.com>,
        <devicetree@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>
Subject: [PATCH 4/4] nvmem: add bsec support to stm32mp25

Add BSEC support to STM32MP25 SoC family with SoC information:
- RPN = Device part number (BSEC_OTP_DATA9)
- PKG = package data register (Bits 2:0 of BSEC_OTP_DATA122)

Signed-off-by: Patrick Delaunay <patrick.delaunay@...s.st.com>
---

 arch/arm64/boot/dts/st/stm32mp251.dtsi | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/st/stm32mp251.dtsi b/arch/arm64/boot/dts/st/stm32mp251.dtsi
index 124403f5f1f4..96859d098ef8 100644
--- a/arch/arm64/boot/dts/st/stm32mp251.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp251.dtsi
@@ -140,6 +140,22 @@ sdmmc1: mmc@...20000 {
 			};
 		};
 
+		bsec: efuse@...00000 {
+			compatible = "st,stm32mp25-bsec";
+			reg = <0x44000000 0x1000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			part_number_otp@24 {
+				reg = <0x24 0x4>;
+			};
+
+			package_otp@1e8 {
+				reg = <0x1e8 0x1>;
+				bits = <0 3>;
+			};
+		};
+
 		syscfg: syscon@...30000 {
 			compatible = "st,stm32mp25-syscfg", "syscon";
 			reg = <0x44230000 0x10000>;
-- 
2.25.1