I have a small problem with a port of linux 2.6.26 to a custom board.
Our board is almost identical to the Analogue & Micro asp 8347 board, so
I'm using Kumar Gala's excellent fsl tree (thank you Kumar) as it
already has a defconfig for the asp.
Thanks also to Bryan O'Donoghue for pointing us in the direction of the
asp port in the first place.
The problem we have is I am unable to request an external interrupt. We
have an FPGA which has an interrupt line - HW IRQ_0, so thats linux IRQ 48.
I have added the following to the dts file:
[EMAIL PROTECTED] {
interrupts = <48 8>;
interrupt-parent = <&ipic>;
}
but whenever I call request_irq() it returns -ENOSYS.
The driver loads fine, and the open function does very little - a call
to ioremap() - which works, and a call to request_irq() which does not.
Is there anything else I have to do to configure this interrupt?
Regards,
Richard.
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