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Release notes

These release notes list all information related to version 6.0.x. These versions are listed from the most recent to the oldest.

The hardware supported for these versions is listed under Supported Hardware and the Knownn Issues are documented here.

Initial Release 6.0.0

Version Number

The v6.0 release is the first version of the BSP. We are using this version number to indicate that this is the successor of the legacy i.MX Dunfell BSP with version number v5.0.

General Information

  • Usage of kas integration tool, replacing the custom scripts used in previous BSPs
  • Usage of a new monorepo meta-ked-bsp, replacing the build and meta layer repositories used in previous BSPs

Integrated Components

  • Yocto 4.0 LTS "Kirkstone" (layers compatible with 3.1 LTS "Dunfell")
  • Linux 6.1 LTS with KED backports and patches
  • U-Boot 2023.04 with KED backports and patches

Breaking Changes Compared to Dunfell BSP (5.0)

  • SPL and U-Boot proper images are now merged into a single flash.bin instead of two separate images.
  • SPI NOR partitioning and offsets have been altered:
  • single partition for U-Boot and SPL
  • changed offset for environment to the end of the SPI NOR
  • changed offset for U-Boot proper to be the same on SPI NOR and eMMC
  • U-Boot environment was reworked
  • SWUpdate configuration was optimized
  • Naming of layers, distro, images, etc. has been changed from ktn to ked

Known Issues

  • The onboard USB hub on the BL i.MX8MM doesn't work in U-Boot.
  • The A/B boot scheme can be bricked by multiple updates with a broken kernel image.
  • The fw_getenv/setenv tools can't deal with the different possibilities for the location of the U-Boot environment on i.MX8MM (SPI NOR, SD card, eMMC).
  • If the U-Boot environment for i.MX8MM is placed in the eMMC hardware partition (boot0) it is not aligned to the end of the partition, but uses the same fixed offset as on SPI NOR and SD card.
  • There is misconfigured dependency that requires the xxd tool to be installed on the build host/container.

Supported Hardware

Product Numbers Product Name Product Type Status
40099 122 SL i.MX6 UL SoM Not Supported (Unverified)
40099 145 SL i.MX6 ULL SoM Not Supported (Unverified)
40099 167 SL STM32 MP157 SoM Not Supported (Planned)
40099 175
40099 185
40099 242
40099 212		 SL i.MX8M Mini Quad SoM Supported
40099 227
40099 229
40099 239
40099 231		 OSM-S i.MX8M Mini Quad SoM Supported
40099 290
40099 292
40099 293		 OSM-S i.MX8M Plus SoM Not Supported (Planned)
40099 148 BL i.MX6 ULL Board Not Supported (Unverified)
40099 176 BL STM32 MP157 Board Not Supported (Planned)
40099 187
40099 220		 BL i.MX8M-Mini Quad Board Supported (Basic1)

  1. Basic support doesn't include all features of the board. Especially advanced peripherals like display, graphics, hardware acceleration units, camera interfaces, etc. might not be supported or tested yet. ↩