GPIO interrupt on AMCC 460EX

[Felix Radensky]

Hi,

I'm writing a Linux driver for CPLD access on custom
460EX based board. CPLD generates interrupt, which
is connected to GPIO pin 45. According to 460EX user
manual, this pin, if configured as alternate function 3,
will generate external interrupt 12, which is mapped into
irq 20 on UIC3.  My question is - how do I get irq number
suitable for passing to request_irq().

Thanks a lot.

Felix Radensky
Embedded Solutions Ltd.
http://www.embedded-sol.com