On Thu, Feb 9, 2012 at 3:47 PM, Peter De Schrijver <pdeschrijver@xxxxxxxxxx> wrote: > Prepare the Tegra secondary CPU core bringup code for other Tegra variants. > The reset handler is also generalized to allow for future introduction of > powersaving modes which turn off the CPU cores. > > Based on work by: > > Scott Williams <scwilliams@xxxxxxxxxx> > Chris Johnson <cwj@xxxxxxxxxx> > Colin Cross <ccross@xxxxxxxxxxx> > > Signed-off-by: Peter De Schrijver <pdeschrijver@xxxxxxxxxx> > --- <snip> > diff --git a/arch/arm/mach-tegra/headsmp.S b/arch/arm/mach-tegra/headsmp.S > index b5349b2..7973f1c 100644 > --- a/arch/arm/mach-tegra/headsmp.S > +++ b/arch/arm/mach-tegra/headsmp.S <snip> > @@ -47,15 +64,116 @@ ENTRY(v7_invalidate_l1) > mov pc, lr > ENDPROC(v7_invalidate_l1) > > + > ENTRY(tegra_secondary_startup) > - msr cpsr_fsxc, #0xd3 > bl v7_invalidate_l1 > - mrc p15, 0, r0, c0, c0, 5 > - and r0, r0, #15 > - ldr r1, =0x6000f100 > - str r0, [r1] > -1: ldr r2, [r1] > - cmp r0, r2 > - beq 1b > + mov32 r0, 0xC5ACCE55 > + mcr p14, 0, r0, c7, c12, 6 One minor nit, you should comment that this is enabling coresight. -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
