[U-Boot] [PATCH V2 7/9] ARM: OMAP3: Introduce OMAP3 Cortex-A8 revision specific errata

Siarhei Siamashka siarhei.siamashka at gmail.com
Tue Mar 3 08:30:01 CET 2015


On Wed, 25 Feb 2015 13:49:52 -0600
Nishanth Menon <nm at ti.com> wrote:

> On 02/25/2015 05:15 AM, Paul Kocialkowski wrote:
> > Le mardi 24 février 2015 à 16:57 -0600, Nishanth Menon a écrit :
> >> 430973: Stale prediction on replaced inter working branch causes
> >> 	Cortex-A8 to execute in the wrong ARM/Thumb state
> >> Impacts: Everything lower than r2p1
> >> Work around: Set IBE to 1
> > 
> > According to the Linux kernel source, this should only affect r1p*
> > (hence, not r2p0):
> > https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/tree/arch/arm/mm/proc-v7.S#n321
> 
> I did look at the official Cortex-A8 errata doc (I think this is under
> NDA at least under TI).. Doc revision 20.0

The errata list is not that much secret. But more like all the
documents that you get from your employer are just under NDA by
default. Even though they might be also available from the other
sources.

I had the same problem. And specifically requested and obtained my
own personal copy of the Cortex-A8 errata list from ARM as a private
individual (to my gmail address, and clearly stating that I wanted it
for the purposes *not* related to my corporate job) :-)

I'm not allowed to share my copy with the other people though, so
everyone has to get it directly from ARM. I believe that that this
only requires filling in the registration form on the ARM website
and agreeing with the conditions.

There are also PDF documents from Freescale in public access, which
contain some Cortex-A8 errata information too:

    http://cache.freescale.com/files/32bit/doc/errata/IMX50CE.pdf
    http://www.freescale.com/docs/pcn_attachments/15760_IMX53CE_Rev4.pdf    

-- 
Best regards,
Siarhei Siamashka


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