ARM FIQ and nested interrupts
|[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]|
Hello,We are looking at an application where we will need an FIQ to be able to interrupt an IRQ and I have been looking at support for this. It seems like there is no nested interrupt support for ARM and that FIQ support is very limited, in that it effectively turns it into an IRQ to be handled after current IRQ. Am I missing something here?
Has anyone done any work to support the FIQ properly on ARM? Anyone able to comment on why it was done this way in the first place?
Thanks Will -- Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss