[coreboot] [RESEND] Some questions about SeaBIOS's native VGA drivers.
kevin at koconnor.net
Thu Feb 21 14:49:23 CET 2013
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
> * 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
The code you sent calls stdvga_setup() - that touches a bunch of
legacy VGA IO ports - are you sure the i915 has those ports?
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