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coreboot-kgpe-d16/Documentation/mainboard/starlabs/labtop_cml.md

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Star LabTop Mk IV

Specs

  • CPU (full processor specs available at https://ark.intel.com)
    • Intel i7-10710U (Comet Lake)
    • Intel i3-10110U (Comet Lake)
  • EC
    • ITE IT8987E
    • Backlit Keyboard, with standard PS/2 keycodes and SCI hotkeys
    • Battery
    • Charger, using AC adapter or USB-C PD
    • Suspend / resume
  • GPU
    • Intel UHD Graphics 620
    • GOP driver is recommended, VBT is provided
    • eDP 13-inch 1920x1080 LCD
    • HDMI video
    • USB-C DisplayPort video
  • Memory
    • 16GB on-board *1
  • Networking
    • AX201 CNVi WiFi / Bluetooth soldered to PCBA
  • Sound
    • Realtek ALC256
    • Internal speakers
    • Internal microphone
    • Combined headphone / microphone 3.5-mm jack
    • HDMI audio
    • USB-C DisplayPort audio
  • Storage
    • M.2 PCIe SSD
    • RTS5129 MicroSD card reader
  • USB
    • 1280x720 CCD camera
    • USB 3.1 Gen 2 Type-C (left)
    • USB 3.1 Gen 2 Type-A (left)
    • USB 3.1 Gen 1 Type-A (right)

[^1] The Comet Lake PCB supports multiple memory variations that are based on hardware configuration resistors see src/mainboard/starlabs/labtop/variants/cml/romstage.c

Building coreboot

Preliminaries

Prior to building coreboot the following files are required:

  • Intel Flash Descriptor file (descriptor.bin)
  • Intel Management Engine firmware (me.bin)
  • ITE Embedded Controller firmware (ec.bin)

The files listed below are optional:

  • Splash screen image in Windows 3.1 BMP format (Logo.bmp)

These files exist in the correct location in the StarLabsLtd/blobs repo on GitHub which is used in place of the standard 3rdparty/blobs repo.

Build

The following commands will build a working image:

make distclean
make defconfig KBUILD_DEFCONFIG=configs/config.starlabs_labtop_cml
make

Flashing coreboot

+---------------------+------------+
| Type                | Value      |
+=====================+============+
| Socketed flash      | no         |
+---------------------+------------+
| Vendor              | Winbond    |
+---------------------+------------+
| Model               | 25Q128JVSQ |
+---------------------+------------+
| Size                | 16 MiB     |
+---------------------+------------+
| Package             | SOIC-8     |
+---------------------+------------+
| Internal flashing   | yes        |
+---------------------+------------+
| External flashing   | yes        |
+---------------------+------------+

Please see [here](../common/flashing.md) for instructions on how to flash with fwupd.