Intel Comet Lake-U (CML-U) CPU

The Intel Comet Lake-U CPU is designed for mobile devices and includes an integrated PCH, the Intel 400 series chipset. The available SKUs may be seen at the Intel ARK.

Documentation

Documentation for the CML-U CPU may be found at the Intel Resource and Design Center. Some documentation may require signing an NDA. After logging in with a privileged account, the Comet Lake U Technical Library will be available with all relevant documentation.

Firmware Support

Support for the CML-U CPU is provided by the following:

  • coreboot soc/cannonlake
    • Configured by mainboard source code and build configuration
    • Correct mainboard source code and build configuration is provided with System76 firmware
  • Intel Firmware Support Package (FSP) CometLakeFspBinPkg/CometLake1
    • Configured using Updateable Product Data (UPD)
    • UPDs are set by coreboot based on mainboard source code and build configuration
    • Correct mainboard source code and build configuration is provided with System76 firmware
  • Intel Graphics Output Protocol (GOP) 9.0 - Optional
    • Configured using the Video BIOS Table (VBT)
    • VBT is edited using Intel Binary Modification Program (BMP)
    • Sample VBT is available from Intel FSP repository
    • Correct VBT is provided with System76 firmware
  • Intel Management Engine (ME) 14.0
    • Configured using the Intel Firmware Descriptor (FD) as well as ME filesystem
    • Intel FD and ME filesystem is edited by Intel Flash Image Tool (FIT)
    • Correct Intel FD and ME is provided with System76 firmware
  • Intel Microcode
    • Comet Lake U42 - 806EC
    • Comet Lake U64 - A0660
    • Correct microcode is provided with System76 firmware
  • Model-specific configuration can be found in model documentation