From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4] ARM: Add check for Cortex-A15 errata 798181 ECO
Date: Fri, 30 Aug 2013 10:11:00 +0100 [thread overview]
Message-ID: <20130830091100.GC25628@mudshark.cambridge.arm.com> (raw)
In-Reply-To: <1377440747-4564-1-git-send-email-robherring2@gmail.com>
On Sun, Aug 25, 2013 at 03:25:47PM +0100, Rob Herring wrote:
> From: Rob Herring <rob.herring@calxeda.com>
>
> The work-around for A15 errata 798181 is not needed if appropriate ECO
> fixes have been applied to r3p2 and earlier core revisions. This can be
> checked by reading REVIDR register bits 4 and 9. If only bit 4 is set,
> then the IPI broadcast can be skipped.
>
> Signed-off-by: Rob Herring <rob.herring@calxeda.com>
> ---
> v4:
> - Move code from setup.c back to smp_tlb.c
> - Use IS_ENABLED macro
Reviewed-by: Will Deacon <will.deacon@arm.com>
Note that you might get some trivial conflicts with my barriers series,
which is merged in rmk/devel-stable (and therefore -next).
Will
next prev parent reply other threads:[~2013-08-30 9:11 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-25 14:25 [PATCH v4] ARM: Add check for Cortex-A15 errata 798181 ECO Rob Herring
2013-08-30 9:11 ` Will Deacon [this message]
2013-09-02 13:58 ` Russell King - ARM Linux
2013-09-02 21:31 ` Russell King - ARM Linux
2013-09-03 9:13 ` Will Deacon
2013-09-03 9:20 ` Russell King - ARM Linux
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