[PATCH] ARM: Kconfig: Let ARM_ERRATA_364296 not depend on CONFIG_SMP

Will Deacon will.deacon at arm.com
Tue Jul 9 04:37:13 EDT 2013

On Mon, Jul 08, 2013 at 10:53:20PM +0100, Russell King - ARM Linux wrote:
> On Mon, Jul 08, 2013 at 06:38:09PM -0300, Fabio Estevam wrote:
> > From: Fabio Estevam <fabio.estevam at freescale.com>
> > 
> > imx_v6_v7_defconfig handles both multi-core and single-core SoCs, and it has 
> > CONFIG_SMP=y selected by default.
> > 
> > With such config we cannot select ARM_ERRATA_364296, as it depends on !SMP.
> > 
> > Let ARM_ERRATA_364296 be undependent on CONFIG_SMP, so that we can select
> > this erratum for the ARM1136 SoCs, even if CONFIG_SMP=y is enabled.
> I'll wait for ARM Ltd folk to comment on this (they're at Linaro Connect
> at the moment which has extremely poor 'net connectivity from what I've
> been hearing).  We might need to bypass the workaround code in the non-SMP
> case.

The workaround (in proc-v6.S) checks the midr specifically for 1136 r0p2, so
it should be fine to remove the CONFIG_SMP dependency given that the 1136 is
UP only.


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