[SeaBIOS] [coreboot] [RESEND] Some questions about SeaBIOS's native VGA drivers.

[Kevin O'Connor]

Hi,

On Thu, Feb 21, 2013 at 02:01:34PM +0100, Denis 'GNUtoo' Carikli wrote:
> I've created stub in SeaBIOS(there is an attached patch for that) for
> the i915 driver(it will be filled in later), however I don't know how to
> run the code:
> * I guess it creates an option rom that is in out/vgabios.bin and that
>   I've to include it trough one of the various ways(let seabios pick
>   it, run it in coreboot, run it in coreboot trough YABEL for
>   debugging etc...)? right? romheaders seem to think that the option
>   rom is valid(more on it later). I guess YABEL also thinks it's valid.
>   I guess SeaBIOS out/bios.bin.elf doesn't link that option rom inside
>   SeaBIOS...

All correct.

> * it doesn't print a thing, I've CONFIG_DEBUG_LEVEL=2 and there is the
>   following in the driver stub:
>   dprintf(1, "i915vga_setup: VGA init...\n");

Did you select CONFIG_COREBOOT and CONFIG_SERIAL_DEBUG in SeaBIOS
Kconfig?

The code you sent calls stdvga_setup() - that touches a bunch of
legacy VGA IO ports - are you sure the i915 has those ports?

-Kevin