[PATCH 1/2] arm64: dts: st: add bsec support to stm32mp21
From: Patrice Chotard
Date: Wed Feb 11 2026 - 08:55:19 EST
Add BSEC support to STM32MP21 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: Patrice Chotard <patrice.chotard@xxxxxxxxxxx>
---
arch/arm64/boot/dts/st/stm32mp211.dtsi | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/arch/arm64/boot/dts/st/stm32mp211.dtsi b/arch/arm64/boot/dts/st/stm32mp211.dtsi
index cd078a16065e..4bfd58b26b51 100644
--- a/arch/arm64/boot/dts/st/stm32mp211.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp211.dtsi
@@ -112,6 +112,22 @@ usart2: serial@400e0000 {
};
};
+ bsec: efuse@44000000 {
+ compatible = "st,stm32mp25-bsec";
+ reg = <0x44000000 0x0 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@44230000 {
compatible = "st,stm32mp21-syscfg", "syscon";
reg = <0x44230000 0x0 0x10000>;
--
2.43.0