[coreboot] [PATCH] Fix AMD HD 3200 uma graphics problems in Win7 (revised)

Marc Jones marcj303 at gmail.com
Thu Nov 4 00:52:42 CET 2010

On Wed, Nov 3, 2010 at 3:34 PM, Rudolf Marek <r.marek at assembler.cz> wrote:
> Hi Scott,
> I tried to boot with that on famF CPU and it went well.
> ruiktest:~#
> ruiktest:~# lspci -vvv -s 01:05.0
> 01:05.0 VGA compatible controller: ATI Technologies Inc RS880 [Radeon HD
> 4200] (prog-if 00 [VGA controller])
>        Subsystem: ATI Technologies Inc Device 0000
>        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
> Stepping- SERR- FastB2B- DisINTx-
>        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort-
> <TAbort- <MAbort- >SERR- <PERR- INTx-
>        Latency: 0, Cache Line Size: 64 bytes
>        Interrupt: pin A routed to IRQ 18
>        Region 0: Memory at e8000000 (32-bit, prefetchable) [size=128M]
>        Region 1: I/O ports at 1000 [size=256]
>        Region 2: Memory at f8100000 (32-bit, non-prefetchable) [size=64K]
>        Region 5: Memory at f8000000 (32-bit, non-prefetchable) [size=1M]
>        Expansion ROM at <unassigned> [disabled]
>        Capabilities: [50] Power Management version 3
>                Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
> PME(D0-,D1-,D2-,D3hot-,D3cold-)
>                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
>        Capabilities: [a0] MSI: Enable- Count=1/1 Maskable- 64bit+
>                Address: 0000000000000000  Data: 0000
>        Kernel driver in use: radeon
> The BAR seems to be enabled. Btw I tried to boot Win7 but still got only
> logo animation forever. Not sure what it could be.
> I agree that this patch is big improvement. We can fix the MMCONF later.

Was that an ack?

Maybe I misunderstand, but I don't think that there is an MMCONF
issue. The bar disable prevents the 780 MMCONF from being moved,

Just curious, have you test this with Linux? I tried to load win7, but
got a ACPI stop 0xA5. I suspect that my tables are not working at all.
This is on iei kino. I will investigate more tomorrow.



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