On Tue, May 27, 2008 at 11:08:53AM -0700, vb wrote:
> >On Thu, May 22, 2008 at 10:52 AM, David Woodhouse <dwmw2@xxxxxxxxxxxxx> wrote:
> > On Thu, 2008-05-22 at 10:24 -0700, vb wrote:
> >> Do I have to describe the CF card in the dreaded DTS file (I don't see
> >> any reference to IDE in the prom*.c and friends though).
> >
> > Yes, you do. Use libata instead of the old IDE driver, and see
> > pata_of_platform.
>
> David, again thank you for this insight. I got to spend some more time
> on this and (unfortunately!) have some more questions:
>
> SCSI support gets added as soon as CONFIG_ATA gets enabled in
> drivers/ata/Kconfig - is this intentional/necessary? My embedded
> target sure doesn't have any SCSI hardware, all it needs is a CF card
> support in true IDE mode.
>
> These are config flags added 'automagically' as soon as ATA is enabled
> does it make sense?
>
> CONFIG_SCSI=y
> CONFIG_SCSI_DMA=y
> CONFIG_SCSI_LOWLEVEL=y
> CONFIG_SCSI_PROC_FS=y
> CONFIG_SCSI_WAIT_SCAN=m
>...
CONFIG_SCSI_LOWLEVEL can be disabled (but it doesn't make any difference
for the code).
CONFIG_SCSI_PROC_FS can be disabled, which will save you a few bytes.
> /vb
cu
Adrian
--
"Is there not promise of rain?" Ling Tan asked suddenly out
of the darkness. There had been need of rain for many days.
"Only a promise," Lao Er said.
Pearl S. Buck - Dragon Seed
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