[coreboot] appending VGA ROM with VSA
Phani Babu Giddi
phanig at gmail.com
Wed Mar 19 00:56:22 CET 2008
I have given up on appending VGA ROM with coreboot image. Instead I use the
serial port for all the debug messages and then Geode LX frame buffer driver
takes over immediately after loading the kernel.
On Mon, Mar 17, 2008 at 7:34 PM, Phani Babu Giddi <phanig at gmail.com> wrote:
> Yes currently I am using the serial port and it works well.
> Thanks for the clarification on the blob address. I am still wondering why
> I am coreboot is not able to see the VSA. The only other suspicsion I have
> is with the VGA ROM thats because the size was 32K and atleast for some
> other boards I read that it should be 36K and the last 4K of the VGA ROM
> cannot be retrived using "dd".
> I tried searching for tools to decompress and extract the VGA ROM but the
> links seem to be broken...
> On Mon, Mar 17, 2008 at 5:31 PM, Peter Stuge <peter at stuge.se> wrote:
> > On Mon, Mar 17, 2008 at 01:48:42PM -0800, Phani Babu Giddi wrote:
> > > But I wanted to see some of the debug messages that are given out
> > > at the time of initializing core boot.
> > I would recommend using the serial port for this.
> > > Just one question I was using a 512k part and then I switched over
> > > to a 1MB flash part and the VSA initialization went through without
> > > trouble, so where do you think is the blob location hardcoded.
> > --8<-- src/cpu/amd/model_lx/vsmsetup.c, do_vsmbios()
> > rom = ((unsigned long)0) - (ROM_SIZE + 36 * 1024);
> > -->8--
> > As Marc confirmed it's hardcoded to the beginning of the defined rom
> > size, but not hardcoded to an address. Sorry for the confusion.
> > //Peter
> > --
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