Re: [coreboot] coreboot Digest, Vol 48, Issue 13

[David Melik]

> > > I did that, then did not see Opterons listed in it or on
> > > coreboot.org/buildrom/.
>
> ?

The current buildrom just
seems to omit Opteron 800 (or any) series, and that link omits s4882 
from 'supported boards.'
> > > I thought I read in the archives that someone patched coreboot for s4882[...]
>
> It should still work.  Here's what I did.
>
> cd coreboot/svn/targets
> ./buildtarget tyan/s4882/
> make -C tyan/s4882/s4882/
>
> make[1]: *** No rule to make target
> `../../../../payloads/tg3--filo_hda2_vga.zelf', needed by `payload'.  Stop.
>
> // Same error you got.
>
> gvim tyan/s4882/Config.lb
>    change ../../../../payloads/tg3--filo_hda2_vga.zelf to ../grub2.elf
>
> cp ../../../../deploy/grub2-payload.elf tyan/s4882/s4882/grub2.elf
> make -C tyan/s4882/s4882/
>
> ERROR: payload (206476) + coreboot (131072) - Size is 124556 bytes larger
> than ROM size (212992).
> make[1]: *** [coreboot.rom] Error 1
>
> // Different error, but important.
> /* It's configured to have two images in the ROM and there isn't enough
> space for two copies of grub2+coreboot.  If fallback is really important to
> you, you can start using compression, but lets get something working for you
> first. */
>
> gvim tyan/s4882/Config.lb
>
> gvim tyan/s4882/Config.lb
>
> -------------SNIP ----------------
> # Sample config file for 
> # the Tyan s4882
> # This will make a target directory of ./s4882
>
> target s4882
> mainboard tyan/s4882
>
> romimage "fallback" 
>    option USE_FALLBACK_IMAGE=1
>    option FALLBACK_SIZE=ROM_SIZE
>    option ROM_IMAGE_SIZE=0x20000
>    option XIP_ROM_SIZE=0x20000
>    option COREBOOT_EXTRA_VERSION="$(shell cat ../../VERSION)_Fallback"
>    payload ../grub2.elf
> end
>
> buildrom ./coreboot.rom ROM_SIZE "fallback"
>
> -------------SNIP ----------------
>
> make -C tyan/s4882/s4882/
>
> That should work.  Let me know.  Exact error messages and what you type will
> help us help you.
>
> Thanks,
> Myles

Great!  It appeared to work, but I am unsure if I will test it today or 
in few/one day(s) after
I upgrade with slamd64-12.2-dvd.iso (downloading.)

So, how hard is it to build coreboot for unsupported boards?  I have 15 
- 20 boards around, incl. a few working (mostly '90s:) perhaps I should 
try others if I wait for my OS download....

--David

coreboot Digest, Vol 48, Issue 13

[Myles Watson]

> -----Original Message-----
> From: [e-mail] [mailto:[e-mail]]
> On Behalf Of David Melik
> Sent: Tuesday, February 03, 2009 4:57 PM
> To: [e-mail]
> Subject: Re: [coreboot] coreboot Digest, Vol 48, Issue 13
> > > > I did that, then did not see Opterons listed in it or on
> > > > coreboot.org/buildrom/.
> >
> > ?
>
> The current buildrom just
> seems to omit Opteron 800 (or any) series, and that link omits s4882
> from 'supported boards.'

s4882 isn't supported in buildrom.  It would be very easy to add that
support.

There are several Tyan boards which are supported.  All of them are Opteron
boards.  You select the board under platform in menuconfig.
> > > > I thought I read in the archives that someone patched coreboot for
>
> s4882[...]
> > It should still work.  Here's what I did.
> >
> > cd coreboot/svn/targets

...
> > That should work.  Let me know.  Exact error messages and what you type
>
> will
> > help us help you.
> >
> > Thanks,
> > Myles
>
> Great!  It appeared to work, but I am unsure if I will test it today or
> in few/one day(s) after
> I upgrade with slamd64-12.2-dvd.iso (downloading.)

I'm glad it worked for you.
> So, how hard is it to build coreboot for unsupported boards?  I have 15
> 20 boards around, incl. a few working (mostly '90s:) perhaps I should
>
> try others if I wait for my OS download....

Porting coreboot to a new board can be very difficult or relatively easy.

Here's a helpful link.  If your CPU, Northbridge, Southbridge, and SuperIO
are supported it should be fairly easy.  Otherwise you'll need docs for
them.  Also check out the developers links on coreboot.org.

http://www.coreboot.org/Supported_Chipsets_and_Devices

Thanks,
Myles