i.MX6 SATA-II

[wanglee]

        我做了一个兼容iMX6D和iMX6Q的板卡，但是我发现iMX6D(MCIMX6D5EYM10AC-QCD1602)不支持SATA-II,但是iMX6Q支持，我觉得我的硬件是没有问题的。但是按照官方的说明，iMX6D应该是支持SATA-II的，这是为什么？

[igorpadykov]

Q: [Translated by Google]: I made a compatible iMX6D and iMX6Q board, but I found iMX6D
(MCIMX6D5EYM10AC-QCD1602) does not support SATA-II, but iMX6Q support,
I think my hardware is no problem. However, according to the official note, iMX6D
should support SATA-II, which is why?

A: iMX6D has the same SATA module as iMX6Q and it also supports SATA-II.

Please try to adjust sata signal shape described in sect.36.4.14 GPR (IOMUXC_GPR13)

i.MX6DQ Reference Manual
https://www.nxp.com/docs/en/reference-manual/IMX6DQRM.pdf

May be recommended to perform sata eye pattern test:

https://community.nxp.com/message/975623?commentID=975623#comment-975623 

Best regards
igor

[wanglee]

The power level  in  SATA_VP pin  is higher (1.28V) than normol (1.1V), how to  lower the power level to normal? will  this  degrade  the performance or destroy the IC ？