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Altera_Forum's avatar
Altera_Forum
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12 years ago

GHRD interrupts

I would like to use the standard GHRD design to handle interrupt. It looks like the pushbutton interrupts are enabled in the Qsys design. I have no idea how to register a callback in Linux cod...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

Hi ecullert

I have writen a hps gpio interrupt driver with kernel-3.8. I build the driver within the kernel and it works.

I get the kernel source from http://www.rocketboards.org/foswiki/view/projects/sockitlinarolinuxdesktop

In the dts I just add myself code

gpio1: gpio@0xff709000 {

compatible = "key";

reg = < 0xff709000 0x00001000 >;

interrupts = <0 165 4>;

};

The interrupt number in dts is 32 less than the number in GIC

The I write my own driver (initial the driver and register the interrupt in kernel)

This driver just uste the gpio interrupt but not fpga interrupt

I hope the information be helpful for you!