[PATCH] ARM: mach-orion5x: fix legacy get_irqnr_and_base

Andrew Lunn andrew at lunn.ch
Wed Nov 25 07:43:13 PST 2015

> BTW, mv78xx0 is still broken wrt this IRQ #0 usage.  Is it possible that 
> no one uses it?  It is a weird not-completely-SMP architecture that 
> lacks cache coherency support between CPU cores. To fully use both 
> cores, we'd need to have two independent Linux instances with memory 
> partitioning and this was never implemented. I'm unaware of any product 
> using Linux on that SOC either.  My own mv78xx0 dev board took the way 
> of the recycling facility a while ago given the lack of interest.
> Should we "fix" it by removing it outright?

I think it was at the Edinburgh kernel summit/ELCE i met somebody
still using it. If i remember correctly, Linux on one core, and
something else on the other. That was two years ago. I've not heard
anything since.


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