Re: [EXTERNAL] Re: [PATCH v14 4/8] arm64: dts: ti: k3-j721s2-common-proc-board: Enable SERDES0

[Ravi Gunasekaran]

Roger,

On 25/04/23 5:15 pm, Roger Quadros wrote:
> Hi,
> 
> On 31/03/2023 12:00, Ravi Gunasekaran wrote:
>> From: Aswath Govindraju <a-govindraju@xxxxxx>
>>
>> Configure first lane to PCIe, the second lane to USB and the last two lanes
>> to eDP. Also, add sub-nodes to SERDES0 DT node to represent SERDES0 is
>> connected to PCIe.
> 
> Is USB0 expected to work in super-speed on this board?
> If yes then you need to add USB0 lane information as well.
> Otherwise please ignore my comment.
> 

The SerDes on J721S2 can simultaneously support only two protocols.
By default PCIe and DP will be supported. Due to this, USB is configured
in high-speed and this does not require any SerDes lane configuration.

>>
>> Signed-off-by: Aswath Govindraju <a-govindraju@xxxxxx>
>> Signed-off-by: Matt Ranostay <mranostay@xxxxxx>
>> Signed-off-by: Ravi Gunasekaran <r-gunasekaran@xxxxxx>

[...]

> 
> cheers,
> -roger

-- 
Regards,
Ravi