Re: [PATCH RFC 0/2] PCI: rockchip-host: Retry training and hot-reset a JMB585 on RK3399

[Igor Velkov]

Hi Shawn,

Thanks, that settles it. Bad bring-ups with TX_SWING_COMP against the default:

  0x4: 10/104 and 7/104, default 3/104 and 6/104
  0xc: 6/104, default 5/104

I did not measure VDD09. I stop looking for the cause here.

Next: I withdraw this RFC. The hot reset in patch 2 does not help: the link
comes back fast and still aborts. I will test a replacement on mainline and
post it as a new series: watch the LTSSM for 5 ms after link-up, and bring the
port up again if it keeps entering Recovery or training timed out outside
Detect. In Armbian that gave 0 aborts in 600 rebinds, against 5 in 150 without
it. Nothing needed from you for now.

Igor