Messages in this thread | | | Date | Thu, 16 May 2013 09:57:11 +0100 | From | Russell King - ARM Linux <> | Subject | Re: [PATCH] ARM: mach-moxart: platform port for MOXA ART SoC |
| |
On Thu, May 16, 2013 at 12:54:20AM +0200, Arnd Bergmann wrote: > Ah, I see. I also read the mach-gemini version of the idle code, > which is apparently the same thing as the code that was commented > out here, so that has the wakeup race. > > Since it seems that WFI is broken on all fa526 cores, or at least > all the ones we want to support in Linux, maybe it's better to > not call WFI at all there?
Well, if its a CPU core thing, then it's even easier - the proc-*.S file can handle it just fine (because that's where the WFI code is.) Just delete the contents of the processor specific idle function, IOW:
/* * cpu_fa526_do_idle() */ .align 4 ENTRY(cpu_fa526_do_idle) mcr p15, 0, r0, c7, c0, 4 @ Wait for interrupt mov pc, lr
remove the WFI from there.
| |