Can't get FIQ interrupt to work on i.mx233

[Russell King - ARM Linux]

On Tue, Jul 16, 2013 at 10:59:22AM +0900, Juha Lumme wrote:
> For now the assembly handler is only 6 instructions: http://codetidy.com/6193/
> I first want to just clear the interrupt bit in HW_ICOLL_INTERRUPT31,
> and then I write 0xFF to HW_PINCTRL_DOUT1

Unfortunately, the code doesn't match your description.  You set r10 to
0xff, and then _load_ the value from the address at r8 into r10.

Maybe that ldr r10, [r8] should be str r10, [r8] ?