[U-Boot] [PATCH V3 0/11] ARM: OMAP3-DRA7: CP15 erratum workarounds and improvements

Nishanth Menon
2015-02-26T14:50:09Z

On Thu, Feb 26, 2015 at 1:40 AM, Siarhei Siamashka
<siarhei.siamashka@gmail.com> wrote:
> On Wed, 25 Feb 2015 14:55:08 -0600
> Nishanth Menon <nm@ti.com> wrote:
>
>> Hi,
>>
>> The third incarnation of this series to address various ideas of
>> previous V2 series. I will skip the full blurb and point to V1/V2
>> links for the usual blurb.
>>
>> Changes since V2:
>> - Added documentation revisioning info with ARM erratums
>> - patch series are split up to address ARM erratums first followed by TI
>> OMAP conversion
>> - More OMAP3 now get erratum implementation - had to redo rx51 a little
>> - I think is better helps exynos: https://patchwork.ozlabs.org/patch/443271/
>> https://patchwork.ozlabs.org/patch/441863/
>> - Rearranged the series to address generic ARM first followed by rest.
>>
>> V2: http://comments.gmane.org/gmane.comp.boot-loaders.u-boot/213060
>> V1: http://comments.gmane.org/gmane.comp.boot-loaders.u-boot/212174
>>
>> Nishanth Menon (10):
>> ARM: Introduce erratum workaround for 798870
>> ARM: Introduce erratum workaround for 454179
>> ARM: Introduce erratum workaround for 430973
>> ARM: Introduce erratum workaround for 621766
>> ARM: OMAP: Change set_pl310_ctrl_reg to be generic
>> ARM: OMAP3: Rename omap3.h to omap.h to be generic as all SoCs
>> ARM: OMAP3: Get rid of omap3_gp_romcode_call and replace with
>> omap_smc1
>> ARM: OMAP5 / DRA7: Setup L2 Aux Control Register with recommended
>> configuration
>> ARM: OMAP3: Enable workaround for ARM errata 454179, 430973, 621766
>> ARM: OMAP3: rx51: Enable workaround for ARM errata 454179, 430973,
>> 621766
>>
>> Praveen Rao (1):
>> ARM: DRA7 / OMAP5: Add workaround for ARM errata 798870
>
> Could you perhaps also pick up a workaround for "725233: PLD
> instructions executed with PLD data forwarding enabled can result
> in a processor deadlock" for old OMAP3 (r1pX revision of Cortex-A8)?
>
> http://git.denx.de/?p=u-boot.git;a=commitdiff;h=041d42e789aba20296ffcde92173f100a9592880
>
> This used to be in U-Boot earlier, but seems to have vanished from the
> current U-Boot code. I would probably submit a patch myself, but I
> don't have such hardware anymore to test it.

Could I have a review by - I think I screwed up r1-r3 handling in
start.S when multiple erratas are enabled - which by some luck, I
have'nt hit.. I should probably fix that.

I will hold off adding more erratas or changes for now and look for
the current series getting in.. in fact, I am tempted to remove omap3
entirely from this list for now, given the multiple platforms impacted
and unless folks are willing to help test those, I am more than happy
to just focus on a15 erratum in the first series which benefits my
immediate needs and potentially helping exynos as well.

--
---
Regards,
Nishanth Menon