Re: [coreboot] thinkpad r400 - porting coreboot

[Marek Doležel]

Hello there,

i am interested in porting coreboot to thinkpad r400.
I have also included datasheet for t400 (according to what i know they
should have same mobo)
Please see more below.

Have a nice day

On Tue, Nov 19, 2013 at 10:42 AM, Nico Huber  wrote:
> Hello Marek,
>
> nice to hear that you're interested in coreboot development. You should ask
> your questions on the coreboot mailinglist ([e-mail]). Just
> forward your original message there, or reply to this mail, adding the
> coreboot mailinglist (don't forget to attach your logs).
>
> Am 15.11.2013 17:49, schrieb Marek Doležel:
> > Hello there,
> >
> > I have noticed that you commited some patches for roda rk9. I would like
>
> to
> > port coreboot to thinkpad r400. I have no previous bios development
> > experience. Could you please tell me how hard for beginner should this
>
> be?
> This really depends on your experience / programming skills and what
> needs to be done (see below).
> > I have attached some interesting dumps. I don't mind working 3 moths to
>
> get
> > just error message from coreboot during early init.
>
> Your dmidecode.log shows that you have DDR2 memory. Sadly, our current
> GM45 chipset code does only support DDR3 (which is used in the Roda
> RK9). If this isn't a fault in your DMI tables and you really have DDR2
> memory, porting coreboot will be especially hard (some more month of extra
> work). OTOH, all other chips (southbridge, super i/o, embedded controller)
> might already be supported.
>
> Good luck,
> Nico
>
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