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Add Lemur Pro 14 (lemp14,lemp14-b)#656

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Add Lemur Pro 14 (lemp14,lemp14-b)#656
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@jackpot51 jackpot51 commented Mar 5, 2026 •
edited by crawfxrd
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@jackpot51 jackpot51 self-assigned this Mar 5, 2026
@crawfxrd crawfxrd force-pushed the lemp14 branch 2 times, most recently from 8bb6c23 to 55bdfa4 Compare April 21, 2026 22:57
@crawfxrd crawfxrd changed the title lemp14 Add Lemur Pro 14 (lemp14) Apr 21, 2026
@crawfxrd crawfxrd force-pushed the lemp14 branch 5 times, most recently from 9c180ac to e9874a4 Compare April 24, 2026 19:03
@crawfxrd crawfxrd changed the title Add Lemur Pro 14 (lemp14) Add Lemur Pro 14 (lemp14,lemp14-b) Apr 24, 2026
@crawfxrd crawfxrd force-pushed the lemp14 branch 3 times, most recently from a3a4616 to 50410ca Compare April 28, 2026 16:09
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crawfxrd commented May 8, 2026 •
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Power issue

Poweroff, reboot, and suspend do not work normally.

  • HECI Global Reset from disabling CSME after flash works.
  • Holding power button for ~5s does result in power off (ACPI Power Button Override?), even after we send HOST_RST_ACK, indicating SoC/PMC is still responsive.
  • reboot will eventually occur, 15s after RST handshake
  • Proprietary firmware works (poweroff/reboot works normally; S0ix doesn't)

Some things that have been tried:

  • ec
    • Using proprietary firmware (with EC_CLEVO_IT5570E in coreboot)
    • Using dedicated pins instead of eSPI VWires to detect SLP assertions
    • Leaving HOST_RST_ACK VWire asserted (would be reset low after eSPI Reset)
    • Removing tri-state on eSPI pins after PLTRST# de-assert
  • csme
    • Reduce eSPI bus freq from 50 MHz to 25 MHz in FIT config
      • I think Clevo just never removed the 25 MHz comment for the eSPI line from the block diagram
    • Updating blobs to BKC PR5
  • coreboot
    • Leave CSME enabled (me_state=Enable)
    • Remove GPIO configs to leave them as FSP configured
      • eSPI, TBT, I2C, SMLink, SMBus, CNVi, CLKREQ, BATLOW#, PWR_BTN#, SLP_S3#
    • Adding IOSTANDBY_IGNORE to those GPIOs
    • Remove IOSTANDBY_IGNORE from eSPI GPIOs
    • Don't use FSP GPIO configs at all (GpioOverride=1)
    • Disable devices in devicetree
      • pmc_shared_sram, hda, tbt_pcie_rp0, tcss_xhci, tcss_dma0, i2c4, pcie_rp7
    • Disable eSPI SMI (SOC_INTEL_COMMON_BLOCK_SMM_ESPI_DISABLE)
    • Cherry-pick and use PTL GPE1 support
    • Setting SLP assertions to max supported width
    • Use S0ix (s0ix_enable,HAVE_ACPI_RESUME)
    • Disable IEST (eist_enable)
    • Set eSPI GPIOs in bootblock

@crawfxrd crawfxrd force-pushed the lemp14 branch 2 times, most recently from 6ec5c41 to 16ac436 Compare May 20, 2026 20:16
crawfxrd and others added 8 commits May 26, 2026 18:46
@crawfxrd
models: Remove generated C files
94a5686 
These files are for coreboot bringup. They do not need to be kept after
committing to coreboot, and can be regenerated if needed.

Signed-off-by: Tim Crawford <tcrawford@system76.com>
@jackpot51 @crawfxrd
scripts: Fixes for generating lemp14 extract
53d26c6 
- generate: Fix ecspy path
- generate: Fix getting VBT
- coreboot-gpio: Handle NF4 and NF8

Co-authored-by: Tim Crawford <tcrawford@system76.com>
Signed-off-by: Tim Crawford <tcrawford@system76.com>
@crawfxrd
tools: Update for Intel Panther Lake support
f623dae 
Signed-off-by: Tim Crawford <tcrawford@system76.com>
@crawfxrd
fsp: Add PTL 4173.01
a2ef096 
From CCG-PTL-Generic-Binaries@PTL.4173.01.

Signed-off-by: Tim Crawford <tcrawford@system76.com>
@jackpot51 @crawfxrd
lemp14: Add Lemur Pro 14
f772823 
The 14" (lemp14) and 16" (lemp14-b) share the same BIOS firmware, but
have different EC firmware based on the keyboard interfaces.

Co-authored-by: Tim Crawford <tcrawford@system76.com>
Signed-off-by: Tim Crawford <tcrawford@system76.com>
@crawfxrd
lemp14: Update CSME to 21.0.6.1525
873a452 
Import CSME from PTL BKC PR5.

- Kit: 919251
- ID: 919252
- Date: 2026-05-14
- Version: PTL-H_2026WW18.2.01

Has following configs in FIT changed:

- Disable Boot Guard
- Disable locking the descriptor at EOM
- Disable camera privacy control
  - GPP_E06 is JTAG ODT strap

Signed-off-by: Tim Crawford <tcrawford@system76.com>
@crawfxrd
lemp14: Use GOP 26.0.63 from PTL PR3 BKC
2b1411e 
Kit 915499:

- Original file: Xe3GraphicsPkg_26.0.63.7z
- ID: 915317
- Date: 2026-03-18
- Version: 26.0.63

Signed-off-by: Tim Crawford <tcrawford@system76.com>
@crawfxrd
lemp14: Update microcode from 0x114 to 0x11b
3c63d71 
Use microcode blob from microcode-20260512.

Link: https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/releases/tag/microcode-20260512
Signed-off-by: Tim Crawford <tcrawford@system76.com>
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