[microblaze-uclinux] Interrupt issue

["Duy-Ky Nguyen" <duykynguyen@xxxxxxxxxxx>]

Hi,

I'm using the latest Petalinux release and kernel 2.4
I'm trying to test GPIO interrupt, but have failed so far.
There's no response at all when I loaded keypaddev.o come with the package.

I wrote a simple driver, loaded it, I was able to see it successfully hooked 
to interrupt IRQ4 I wanted.
This interrupt is associated with Press Button on Spartan 3E-1600 eva board.
But there's no response when I pressed the buttons.

I'm sure the board works fine with interrupt button as I tested with Windows 
EDK code in standalone mode, ie no OS at all.

Compare all relevant regosters in these 2 cases, all ENABLE regsiters are 
the same. T the only differences are the STATUS ones because there's no 
response to IRQ using Petalinux, but responding from standalone one.

I'd really appreciate your help

Duy-Ky

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