linuxboot / linuxboot/heads

(NOT WORKING YET): T440p: Easy 5-minute flashing method

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Description

i reported earlier that i'd found hda_sdo on t440p; i did. but i didn't find a test point to connect dvdd from the hda chip to it, not yet anyway

i assumed any +3.3v would be ok, but i've tested it and it doesn't work

so, disassembly on t440p is still needed, for flashing spi1

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Research direction

Start with the T440p hardware disassembly described in the issue, focusing on the HDA_SDO signal, the HDA chip's DVDD connection, and SPI1 flashing. Verify whether a suitable test point exists and whether the proposed connection enables flashing; done means a working, reproducible 5-minute flashing method is identified.

Written by the indexing model from the issue text.

Assessment

Domain
embedded-iot
Issue type
Bug
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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