linux-kernel - Re: [PATCH] usb: dwc3: Enable GBit Ethernet on Odroid XU4

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Date:   Fri, 08 Feb 2019 14:52:15 +0200
From:   Felipe Balbi <balbi@...nel.org>
To:     Marek Szyprowski <m.szyprowski@...sung.com>,
        Roger Quadros <rogerq@...com>,
        Jochen Sprickerhof <jochen@...ickerhof.de>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        Kishon Vijay Abraham I <kishon@...com>
Subject: Re: [PATCH] usb: dwc3: Enable GBit Ethernet on Odroid XU4


Hi,

Marek Szyprowski <m.szyprowski@...sung.com> writes:
>>>> On 21/01/19 16:02, Jochen Sprickerhof wrote:
>>> [..]
>>>>> I'm not sure why this it only works with the driver compiled into the
>>>>> kernel nor why it needs a hard reset or why it was the line was dropped
>>>>> when the patch was accepted. Would be great to get some feedback of the
>>>>> authors.
>>>> When XHCI driver is compiled into the kernel are the relevant PHY drivers
>>>> compiled in as well?
>>> Only CONFIG_USB_PHY=y (I took the config from the linux-image-4.19.0-1-armmp_4.19.13-1_armhf.deb Debian package as a basis where this is the default).
>
> I confirm that on Odroid XU4 USB 3.0 works only when all related drivers
> (dwc3, xhci and exynos5 drd phy) are compiled into the kernel. If they
> are compiled as modules, USB 3.0 calibration doesn't work. The mentioned
> patch doesn't fix anything.

cool, thanks. So the problem is elsewhere.

-- 
balbi

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