[coreboot] Porting to Asus M4A78-EM

[Myles Watson]

> And you are right, the PCI resources do not show up. The resources of
> the PCI root device include
> 
> PCI: 00:18.0 resource base c0000000 size 10000000 align 28 gran 20 limit
> dff8
> PCI: 00:18.0 resource base d0000000 size 4400000 align 26 gran 20 limit
> dfff0
> 
> 
> These resources do not show up in the coreboot table either:
> 
> coreboot memory table:
>   0. 0000000000000000-0000000000000fff: CONFIGURATION TABLES
>   1. 0000000000001000-000000000009ffff: RAM
>   2. 00000000000c0000-000000002ffeffff: RAM
>   3. 000000002fff0000-000000002fffffff: CONFIGURATION TABLES
>   4. 0000000030000000-000000003fffffff: RESERVED
>   5. 00000000e0000000-00000000efffffff: RESERVED
> Wrote coreboot table at: 2fffe000 - 2fffe1bc  checksum ba50
> 
> 
> But does it really matter? There is now physical RAM only up to
> 40000000. Or is it going to be a problem if there is more than 3 GB RAM?
I'm worried that Linux will put something in the wrong place if it doesn't
know what areas are used.  It may not matter in practice, but as long as
things are broken for you it's probably worth checking into.

Thanks,
Myles