Re: [PATCH v3 00/12] usb: early: add support for early printk through USB3 debug port

From: Dave Young
Date: Thu Nov 12 2015 - 21:27:00 EST


On 11/13/15 at 10:04am, Lu, Baolu wrote:
> Hi Dave,
>
> On 11/12/2015 02:01 PM, Dave Young wrote:
> >Hi, Baolu
> >
> >On 11/12/15 at 10:45am, Lu, Baolu wrote:
> >>>Hi Dave,
> >>>
> >>>Which device are you testing with? This implementation was developed
> >>>and tested on Intel Skylake devices.
> >>>
> >>>It doesn't surprise me if it doesn't work with other silicons. But it do
> >>>remind me to create a verified-list and put those known-to-work devices
> >>>in it.
> >>>
> >I have not got time to do more test. What infomation do you want?
> >lsusb -v?
>
> lspci -v
>

Here is the controller information:

Host side:

00:14.0 USB controller: Intel Corporation 8 Series/C220 Series Chipset Family USB xHCI (rev 05) (prog-if 30 [XHCI])
Subsystem: Hewlett-Packard Company Device 1905
Flags: bus master, medium devsel, latency 0, IRQ 27
Memory at ef120000 (64-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: xhci_hcd

Target side:

00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04) (prog-if 30 [XHCI])
Subsystem: Lenovo Device 220c
Flags: bus master, medium devsel, latency 0, IRQ 41
Memory at f0620000 (64-bit, non-prefetchable) [size=64K]
Capabilities: <access denied>
Kernel driver in use: xhci_hcd

Thanks
Dave
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