On Wed, Feb 16, 2005 at 12:05:16PM -0700, Ajit Prem wrote:
> The email archives indicate that sata_vsc worked
> on a 31244 in a Dell Powervault once the
> kernel included the following configuration:
>
> Processor type and features -> Local APIC support on uniprocessors
> Processor type and features -> IO-APIC support on uniprocessors
> General setup -> Power Management support -> ACPI Support
>
> Trying to use sata_vsc on a 31244 in a PPC board
> results in the same problem as other users had on
> an X86 board configured without ACPI support - interrupts
> come in too early to vsc_sata_interrupt, the interrupt
> doesn't get cleared, and the kernel finally disables the irq.
> What should one do to get sata_vsc/libata to work on a PPC board?
Ultimately I wonder if sata_vsc is masking/clearing all interrupt
conditions during startup.
There might also be a problem with PIO polling.
Jeff
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