hda interrupt timeouts on sa1110 + sa1111 board

[linux@arm.linux.org.uk (Russell King - ARM Linux)]

On Mon, Oct 25, 2010 at 11:12:39PM +0200, Kristoffer Ericson wrote:
> Greetings,
> 
> First off I havent bisected this yet, but sounds more than likely
> that it comes with the sa1111.c changes. It works fine in v2.6.34 also.
> 
> As you can see it progresses a bit but keeps loosing interrupts.

I don't see anything in the sa1111 core, soc_common, or sa11* pcmcia
code which would cause this change of behaviour.  I think it may
require a bisect to find what change broke this.

> [   37.136325] setting trigger mode 3 for irq 51 failed (sa1111_type_highirq+0x0/0x90)
> [   37.182938] setting trigger mode 3 for irq 53 failed (sa1111_type_highirq+0x0/0x90)

These are fine - the soc_common code intentionally tries to set the type
to rising, then both edges - the idea being that we get rising edge if
the hardware doesn't support both edges.

> [   40.662432] jornada720_pcmcia_configure_socket(): config socket 1 vcc 33 vpp 0
> [   40.767874] jornada720_pcmcia_configure_socket(): config socket 1 vcc 33 vpp 0
> [   41.220300] hda: SanDisk SDCFX3-8192, CFA DISK drive
> [   42.002086] ide0 at 0xc8840000-0xc8840007,0xc884000e on irq 49
> [   42.071940] isa bounce pool size: 16 pages
> [   42.133597] hda: max request size: 128KiB
> [   42.191639] hda: 16007040 sectors (8195 MB) w/1KiB Cache, CHS=15880/16/63
> [   72.340242] hda: lost interrupt

And this suggests no interrupts what so ever are coming from the drive.