AnsweredAssumed Answered

SerDes options on LS1021a

Question asked by Elias Bitbaker on Oct 9, 2019
Latest reply on Nov 22, 2019 by ufedor

Hi Guys,


My linux kernel is 4.19 and I am using lsdk1906.


I am checking through the possible SerDes options for my ls1021a chipset. When I came across the data sheet 


Please see the attachment.


Currently in my RCW my protocol of SerDes is : Using SERDES1 Protocol: 48 (0x30)


(1)How am I able to know which one is the best to fit my application. I only have a wifi module attached to the pcie1 interface.


(2)Is that correct that if I choose to occupy all the lanes for pcie1 will result in the max throughput ?

which is 6GHz for each lane. But does this gonna affect more power consumption?


(3) How am I able to make the PCIe achieve 6GHz transmission rate.  


If I do not need to use the HDD  does that mean I dont need to use the SATA1 ?

OR If I do not need to use the ethernet I dont need to use the SGMII1?