[coreboot] [PATCH] fix UDMA settings in SB700

Uwe Hermann uwe at hermann-uwe.de
Sun Oct 10 21:06:59 CEST 2010

On Thu, Oct 07, 2010 at 12:39:12AM +0200, Rudolf Marek wrote:
> Hello,
> Following patch enables UDMA on ALL IDE devices. The current code
> enables it only for primary master, which causes my DVD drive to
> fail under windows install
> and even after hard reset in linux (DMA seems lockup).
> The fix should not have any influence for Linux because the IDE driver will
> correctly reprogram this bit.
> This brings some attention to IDE code, to what PIO/(U)DMA  should
> we setup? Is there a sane way to assume that all IDE devices are
> capable of PIO0 and UDMA0?
> Maybe Seabios should do some basic setup because it can talk to discs...
> Signed-off-by: Rudolf Marek <r.marek at assembler.cz>

Acked-by: Uwe Hermann <uwe at hermann-uwe.de>

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