Changes notification

Applicable for

STM32MP13x lines, STM32MP15x lines

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1 Article purpose

The article aims to help to rebase an STM32 MPU project on a new ecosystem release by focusing on main changes impacts.

2 Scope of this article

This article provides some details for main changes between STM32 MPU ecosystem release v4.0.0 and new STM32 MPU ecosystem release v4.1.0 to help for migrating your project.

All Informations about the features delivered in the new release is also available in the OpenSTLinux release note.

Important

In case of upgrade from OpenSTLinux ecosystem release v3, check first previous release change notification listed below: STM32 MPU OpenSTLinux release changes notification – v4.0.0

3 Impacted domains

3.1 Yocto build environment for Distribution Package

• None

3.2 Hardware configuration

Check device tree files for STMP32 MPU board:

Linux^® kernel: between Linux kernel v5.15-stm32mp-r2 (v5.15.67) and previous Linux kernel v5.15-stm32mp-r1 (v5.15.24)

• IIO consumer binding and channels configuration update. Links and examples updated in ADC device tree configuration example

U-Boot: between U-Boot v2021.10-stm32mp-r2 and previous U-Boot v2021.10-stm32mp-r1

• None

OP-TEE: between OP-TEE 3.16.0-stm32mp-r2 and previous OP-TEE 3.16.0-stm32mp-r1

• None

TF-A: between TF-A v2.6-stm32mp-r2 and previous TF-A v2.6-stm32mp-r1

• Chain of Trust (COT) binding update. Links updated in TF-A_BL2_Chain of trust implementation

Information

This is possible with git diff command to get delta between to branches in the same repository. Example with ST Linux GitHub repository and for all stm32mp1 device tree files: git diff v5.10-stm32mp-r2 v5.15-stm32mp-r1 -- arch/arm/boot/dts/stm32mp1*

3.3 System configuration

• FIP only since STM32 MPU ecosystem release v4.0.0 . NoFIP is no more supported

3.4 Boot stages

• None

3.5 Security

• None

3.6 User space and applications

• None