On 30 November 2012 15:30, Jon Medhurst (Tixy) <tixy@xxxxxxxxxx> wrote: > From: Will Deacon <will.deacon@xxxxxxx> > > We need to set the flags when checking the feature register. > > Signed-off-by: Will Deacon <will.deacon@xxxxxxx> > --- > > I found this patch in another fork of the bootwrapper and it looks like > something we should have. On the A15 and big.LITTLE setups I've tested > it makes no difference so I guess the z flag was already clear or the > architected timers are already running at 24MHz. > > boot.S | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/boot.S b/boot.S > index 40ebd33..dd453e3 100644 > --- a/boot.S > +++ b/boot.S > @@ -78,7 +78,7 @@ start: > @ > mrc p15, 0, r0, c0, c1, 1 @ CPUID_EXT_PFR1 > lsr r0, r0, #16 > - and r0, r0, #1 @ Check generic timer support > + ands r0, r0, #1 @ Check generic timer support > beq 1f > ldr r0, =24000000 @ 24MHz timer frequency > mcr p15, 0, r0, c14, c0, 0 @ CNTFRQ > -- Er, this patch doesn't apply at all to the kvm bootwrapper. Is there some other patch it depends on that we should have? thanks -- PMM _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/cucslists/listinfo/kvmarm
