[coreboot] Fwd: Re: coreboot port for macbook2,1

Vladimir 'φ-coder/phcoder' Serbinenko phcoder at gmail.com
Sat Jan 25 01:23:41 CET 2014




-------- Original Message --------
Subject: Re: [coreboot] coreboot port for macbook2,1
Date: Sat, 25 Jan 2014 01:23:12 +0100
From: Vladimir 'φ-coder/phcoder' Serbinenko <phcoder at gmail.com>
To: Mono <mono at posteo.de>

On 24.01.2014 23:20, Mono wrote:
> Hallo,
> Would you help me on a coreboot port? I just installed coreboot on a Thinkpad X60 following the wiki. Now I want it on this mid-2007 macbook2,1 too.
> I read some pages in the wiki and started to collect information about the macbook. it seems it has no superIO chip and I dont know what to think of the ectool output. As I understood by now, not knowing how the ec might interfere with the bios or coreboot is one of the big obstacles, no? I hope that once I would try a coreboot flash, recovery might be possible by an external programmer (which I do not have, yet). the flash chip is the same as on the X60 (I've read the factory bios already) as is the northbridge and southbridge. an usb debug port seems available.
> I've put the log files here: http://macbook.donderklumpen.de/coreboot/
> Any comment about what you think about this and how I should proceed is very much welcome!
> 
Good news is that other than EC and some minor points, your macbook is a
copy of X60. With some luck a qualified dev can do it in a week (you may
want to post bounty for it). You need to get console. EHCI debug would
be the best option on your laptop.
http://www.coreboot.org/EHCI_Debug_Port#Finding_the_USB_debug_port
Take USB 2.0 stick and plug it into different port until it appears as
device one on bus 3. You'll have to make a USB debug dongle or buy one
(short supply).
You'll also need to find your flash chip. Your laptop has this chip:
http://orzparts.com/index.php?main_page=product_info&products_id=732
You'll have to teardown the whole laptop, looking at every chip which
seems similar. Remember to discharge from static electricity before
opening your laptop and not to wear anything that produces it. This has
a risk of breaking your laptop, proceed at your own risk, you've been
warned.
> thanks
> Mono
> 






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