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

Sekhar Nori nsekhar at ti.com
Thu Aug 27 23:04:51 EDT 2020


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?

> 
> Now, that said, Please consider converting
> Documentation/devicetree/bindings/pci/pci-keystone.txt to yaml sometime
> in near future, if possible.
> 
> We might also want to spend a little more time with W=2 dtbs build and
> dtbs_check to cleanup.

Sure, will add to TODO.

Thanks,
Sekhar



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