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Bug #310

closed
DH AP

Coreboot 4.14 fails on a Lenvovo T440p

Bug #310: Coreboot 4.14 fails on a Lenvovo T440p

Added by David Hoelscher almost 5 years ago. Updated over 3 years ago.

Status:
Resolved
Priority:
Normal
Assignee:
Angel Pons
Category:
-
Target version:
-
Start date:
06/02/2021
Due date:
% Done:

100%

Estimated time:
Affected versions:
Needs backport to:
Affected hardware:
ThinkPad T440p
Affected OS:
All (coreboot bug)

Description

Hi all,

coreboot 4.14 dies on early boot. The T440p ended with led blinking and beep sound.

This was my first try - so i think it was maybe a problem with mrc.bin or vga.rom. But if I skip back to version 4.13, everything works fine (4.13 working config is appended). I don't know how to get debug information on this early stage of boot. Does anyone has a hint? A Raspberry Pi as an external flasher is available.

Further - is it possible to flash only the 4 MB BIOS chip? This IC is very easy accessible. I am afraid to disassemble the complete backplate to access the other 8MB chip again. Initially I flashed the complete Rom without ME on both chips.

Files

Download all files
Coreboot_4.13.config (23.6 KB) Coreboot_4.13.config Coreboot 4.13 Working config David Hoelscher, 06/02/2021 07:53 PM
descriptor.bin (4 KB) descriptor.bin BIOS Descriptor.bin David Hoelscher, 06/02/2021 08:07 PM
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