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From:   Felipe Balbi <balbi@kernel.org>
To:     Marek Szyprowski <m.szyprowski@samsung.com>,
        Roger Quadros <rogerq@ti.com>,
        Jochen Sprickerhof <jochen@sprickerhof.de>
Cc:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org,
        Kishon Vijay Abraham I <kishon@ti.com>
Subject: Re: [PATCH] usb: dwc3: Enable GBit Ethernet on Odroid XU4
In-Reply-To: <bdbce410-7f48-17a5-b58b-3ebd65ca6913@samsung.com>
References: <20190121140204.GA2360@vis> <5C5A9DCB.8040507@ti.com> <20190206093830.GS26157@vis> <CGME20190206101740epcas2p131674b4b9733047711855ffb2e7a99a7@epcas2p1.samsung.com> <5C5AB41C.9080402@ti.com> <bdbce410-7f48-17a5-b58b-3ebd65ca6913@samsung.com>
Date:   Fri, 08 Feb 2019 14:52:15 +0200
Message-ID: <8736oyl9xc.fsf@linux.intel.com>
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Hi,

Marek Szyprowski <m.szyprowski@samsung.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 dropp=
ed
>>>>> when the patch was accepted. Would be great to get some feedback of t=
he
>>>>> authors.
>>>> When XHCI driver is compiled into the kernel are the relevant PHY driv=
ers
>>>> compiled in as well?
>>> Only CONFIG_USB_PHY=3Dy (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 def=
ault).
>
> 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.

=2D-=20
balbi

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