On 19.12.2020 21:24, Andrew Lunn wrote:
EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe+ port13: port@13 { + reg = <13>; + /* Example: CU SFP, 1G speed */ + max-speed = <10000>;One too many 0's for 1G.
Ah, but this is allocation for the port, not the speed. This just used by the calendar module to allocate slots on the taxis as requested. So I would say it is OK to overallocate in this case (but you could argue it does not make much sense).
+ /* 25G SFPs */ + port56: port@56 { + reg = <56>; + max-speed = <10000>;Why limit a 25G SFP to 10G?
In the PCB134 case it is to keep the total allocation below 200Gbits ((12+8)*10G). There is a port mux mode that provides 8*25G on the 25G SerDes'es, but that would be a different DT. The Datasheet shows which port mux combinations are possible, and not all combinations of SerDes, Speed and interface are allowed. The PCB134 was designed to showcase this "many 10G ports" mode, so that is why we have the current DT.
Andrew
BR Steen --------------------------------------- Steen Hegelund steen.hegelund@xxxxxxxxxxxxx
