Hello Bin,
I am using the latest U-Boot version : u-boot-2016.07-rc1
I am seeing that after the bootup the USB port 3.0 -- the bottom one in the board is not powering up.
I compared the dmesg logs with UEFI and with u-boot. I understood that with u-boot EHCI driver is being used and with UEFI XHCI driver is used
00:1d.0 USB controller: Intel Corporation Atom Processor Z36xxx/Z37xxx Series USB EHCI (rev 11)
In the U-boot , minnowmax.dts in the fsp section I include the 'fsp,enable-xhci;' and now I am seeing that the XHCI driver is being used but still the USB port is not powered up. So I am assuming it to be other issue might be wrong pad up or it's not getting probed.
Can you please look into the issue.
Mit Freundlichen Grüßen VinothKumar +49 1798909072