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Old 12-30-2017, 09:23 PM   #1
arwn
LQ Newbie
 
Registered: Dec 2017
Posts: 2

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No flash chip detected when librebooting x200 with bbb


Not sure if this should be in hardware, or even here in the first place

Trying to libreboot my x200 with a beagle bone black.
Here's my wiring, https://imgur.com/a/P4h4Y
the command I use is `./flashrom -p linux_spi:dev=/dev/spidev1.0,spispeed=512`
I get the error `No EEPROM/flash device found.` after it saying the delay loop is unstable.
I've tried 64 to 1024 spispeed.
I've tried spidev0.0 to 2.1.

Any advice is appreciated, I'm going to pick up a multimeter tomorrow and see if that gives me any clues.
 
Old 12-30-2017, 09:34 PM   #2
_roman_
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Registered: Dec 2017
Location: _Austro_Bavaria_
Distribution: SLACKWARE 96 -> SUSE 6.2 & REDHAT -> Gentoo & ARCH-Linux & Linux-Mint
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It looks more likely that you do not have proper contacts with those alligator clips to the flash chip.

A better description is: I want to change from properitary bios to open source libreboot bios.

I assume your beaglebone is in working order?
I assume you checked the requirements.
I assume you checked a possible power supply?
I assume that hardware is in the support list. Last time i checked a year ago a few IBM, or FAke IBM based notebooks were in that hardware list.

--

Well If it had been myself I'd have read out the bios before. So I would have a backup of the bios in question. I would have a verification that the hardware is working in regards of read out. and I would have a verification that the alligator clips have proper contacts.

I do not have your hardware. You need to check the requirements for programming. e.g. datasheet.

just using a script and hope it works, nope. never.

you always do, with anything similar as a microcontroller some basic tests.
so you verify led toggle works, board okay.

always step by step.

--

Libreboot has no support question forum for you?
 
Old 01-07-2018, 08:01 PM   #3
arwn
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Registered: Dec 2017
Posts: 2

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I had to use config-pin to set 17, 18, 21 and 22 to spi pins. then it worked.
 
  


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