[PATCH] arm64: dts: ti: k3-am65: restrict PCIe to Gen2 speed

[Nishanth Menon]

On 17:26-20200828, Sekhar Nori wrote:
> On 28/08/20 5:02 PM, Nishanth Menon wrote:
> > On 08:34-20200828, Sekhar Nori wrote:
> >> On 28/08/20 5:54 AM, Nishanth Menon wrote:
> >>> On 10:13-20200827, Sekhar Nori wrote:
> >>>> Hi Nishanth,
> >>>>
> >>>> On 02/08/20 10:23 PM, Sekhar Nori wrote:
> >>>>> Per errata i2104 documented in AM65x device errata document (TI document
> >>>>> number SPRZ452E, revised June 2019), Gen3 operation is not supported for
> >>>>> both PCIe Root Complex and Endpoint modes of operation.
> >>>>>
> >>>>> See: https://www.ti.com/lit/er/sprz452e/sprz452e.pdf
> >>>>>
> >>>>> Restrict speed to Gen2 to address the errata.
> >>>>>
> >>>>> Signed-off-by: Sekhar Nori <nsekhar at ti.com>
> >>>>
> >>>> Is this in your queue or should I rebase and resend?
> >>>
> >>> Thanks for the reminder. I have put it on my staging branch for now.
> >>> Once rc3 gets tagged with irqchip related changes, I will move this over
> >>> to next.
> >>
> >> Hmm, this is errata fix and fair game for -rc cycle. Can we have this in
> >> v5.9 itself?
> > 
> > We could, but does'nt seem urgent enough for 5.9 cycle since the dts node
> > was'nt introduced in this cycle, I think it was introduced around 5.3 or
> > so?
> 
> Isn't this too early in -rc cycle to be regressions only?

are'nt we in rc3 already.. But anyways..
> 
> I can provide a fixes tag if you want to ensure backporting. I felt odd
> about it because its workaround for hardware issue, nothing wrong in the
> original commit when it was written.
> 
> But if you are uncomfortable, fine :)

Thanks. yeah, I'd rather do this for 5.10, too much mayhem in 5.9
cycle already. Need to quiet things a bit here.


-- 
Regards,
Nishanth Menon
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