topic Re: Multiple SATA devices using FIS on LS1021 in Layerscape

Multiple SATA devices using FIS on LS1021

otavioborges — Thu, 02 Sep 2021 04:11:54 GMT

I am currently designing a custom board that requires two SATA drives. Reading through LS1021 reference manual I noticed that the peripheral supports FIS multiplexing. But I am having a hard time finding a simple enough SATA controller. Any suggestions?

Would a simple lane multiplexer, with one selection GPIO work for this, like PI2DBS6212?

Re: Multiple SATA devices using FIS on LS1021

ufedor — Thu, 02 Sep 2021 05:48:11 GMT

LS1021A SATA controller supports port multiplier operation. but there is no solution recommended by NXP either using a port multiplier chip or high-speed lane multiplexer.

Re: Multiple SATA devices using FIS on LS1021

otavioborges — Thu, 02 Sep 2021 14:30:51 GMT

Does NXP provide any example or application note on this matter? Either for LS1021 or other layerscape core?

Re: Multiple SATA devices using FIS on LS1021

ufedor — Thu, 02 Sep 2021 17:48:21 GMT

There is no such application note.

Re: Multiple SATA devices using FIS on LS1021

otavioborges — Thu, 02 Sep 2021 20:03:56 GMT

I'll probably change to the ls1024. Any concerns shifting the project from ls1021 to ls1024?

Re: Multiple SATA devices using FIS on LS1021

ufedor — Fri, 03 Sep 2021 02:58:43 GMT

It should be considered that NXP LSDK does not support LS1024A.