BSP-Yocto-Ampliphy-AM62x-PD26.1.0               2026-09-30
==========================================================

- Linux TI vendor kernel v6.18.38-12.01.00.05-phy5 (based on TI tag 12.01.00.05)
- U-Boot v2026.01-phy3
- Yocto 6.0.3 (Wrynose)
- Qt 6.11

Tested Yocto Machines:
----------------------

- phyboard-lyra-am62xx-3
  * phytec-headless-image/ampliphy
  * phytec-headless-image/ampliphy-linux-mainline
  * phytec-headless-bundle/ampliphy-rauc
  * phytec-headless-image/ampliphy-rt
  * phytec-qt6demo-image/ampliphy
- phyboard-lyra-am62xx-4
  * phytec-headless-image/ampliphy
  * phytec-securiphy-bundle/securiphy


Build Environment:
------------------

- Ubuntu 26.04 64-bit


New in this Release
-------------------


**Yocto**
^^^^^^^^^

* **Yocto Update**: Update to 6.0.3 (Wrynose)
* **TI Firmware Update**: Update TI firmware to v12.01.02
* **Ethernet Names**: Previously, ethernet interfaces had alternate names in the form of ethX. These alternate names have been removed and interfaces can only be referred to by endX names.
* **Partup**: partup is now v4.0.0 (updated from v3.0.0)
* **Securiphy SBOM**: Added CycloneDX SBOM support for the securiphy distro
* **Securiphy Login**: Password login over serial is disabled in the securiphy distro. Access is SSH certificate authentication only.


**Linux Kernel**
^^^^^^^^^^^^^^^^

* **Kernel Update**: Update to v6.18.38 (tag: v6.18.38-12.01.00.05-phy5) based on TI SDK v12.01.00.05
* **TI SDK Update**: Bump from TI Processor SDK v11.02.11 to v12.01.00.05
* **OLDI Overlays**: OLDI device tree bindings have changed, so the contents of the OLDI overlays has been reworked. The overlay names and functionality are unchanged.

**U-Boot Bootloader**
^^^^^^^^^^^^^^^^^^^^^

* **Bootloader Update**: Update to U-Boot v2026.01 (tag: v2026.01-phy3)

**Issues Fixed**
^^^^^^^^^^^^^^^^

* **Securiphy Chain of Trust**: Fixed an issue with the chain of trust while booting using the securiphy distro. Previously there was a boot script that was unsigned which violated chain of trust.
* **eMMC Backup Boot Mode**: Fixed an issue where eMMC as a backup boot mode was not detected.
* **Flashcp Command**: Fixed an issue where OSPI reads would be corrupted immediately after writing.

**Known Issues**
^^^^^^^^^^^^^^^^

* **Linux RT Latency**: Real-time Linux can have worst-case latencies up to 600 microseconds under heavy memory load.
* **Weston Startup Issues**: Failure to start Weston when both HDMI and LVDS are active at boot.
* **Low-Power Mode MCU Issue**: MCU-only low-power mode is non-functional when M4F firmware is loaded.
* **USB I/O Errors**: There may be I/O errors with **/dev/sdb** during the boot process from eMMC. However, no issues have been observed when reading from or writing to the drive after booting.