Re: [RESEND PATCH] ARM: errata: Workaround for Cortex-A12 erratum 818325

[Caesar Wang]

å 2015å11æ03æ 16:45, Arnd Bergmann åé:
> On Tuesday 03 November 2015 16:10:09 Caesar Wang wrote:
> > +       /* Cortex-A12 Errata */
> > +       ldr     r10, =0x00000c0d                @ Cortex-A12 primary part number
> > +       teq     r0, r10
> > +       bne     5f

beq  __ca15_errata:
> > +#ifdef CONFIG_ARM_ERRATA_818325
> > +       teq     r6, #0x00                       @ present in r0p0
> > +       teqne   r6, #0x01                       @ present in r0p1-00lac0-rc11
> > +       mrceq   p15, 0, r10, c15, c0, 1         @ read diagnostic register
> > +       orreq   r10, r10, #1 << 12              @ set bit #12
> > +       mcreq   p15, 0, r10, c15, c0, 1         @ write diagnostic register
> > +       isb
> > +#endif
> >          /* Cortex-A15 Errata */
> Does this still build? You seem to have lost the '5:' label.

No,  I didn't have build in next kernel.

Yup,  the patch need a bit change from the message.

commit 17e7bf86690eaad4906d2295f0bd171cc194633b
Author: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>
Date:   Sat Apr 4 21:34:33 2015 +0100

    ARM: proc-v7: move CPU errata out of line



-----
Original patch:
https://patchwork.kernel.org/patch/4735341/

Applied and verified on kernel V3.14.



> 	Arnd
>
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--
Thanks,
Caesar

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