linux-kernel - Re: [PATCH v3 00/27] ARM: dts: exynos: Add initial support for Odroid XU

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Message-id: <5735C48A.6030508@kernel.org>
Date:	Fri, 13 May 2016 14:11:54 +0200
From:	Krzysztof Kozlowski <krzk@...nel.org>
To:	Robin Murphy <robin.murphy@....com>, Kukjin Kim <kgene@...nel.org>,
	Krzysztof Kozlowski <k.kozlowski@...sung.com>,
	Sylwester Nawrocki <s.nawrocki@...sung.com>,
	Tomasz Figa <tomasz.figa@...il.com>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...eaurora.org>,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-clk@...r.kernel.org
Cc:	Javier Martinez Canillas <javier@....samsung.com>,
	Rob Herring <robh+dt@...nel.org>
Subject: Re: [PATCH v3 00/27] ARM: dts: exynos: Add initial support for Odroid
 XU

On 05/13/2016 02:03 PM, Robin Murphy wrote:
> Hi Krzysztof,
> 
> On 10/05/16 21:09, Krzysztof Kozlowski wrote:
>> Hi,
>>
>> Patchset adds necessary clocks, reorganizes existing stuff and finally
>> adds Odroid XU support.
>>
>>
>> Changes since v2
>> ================
>> 1. Got global-ack from Stephen for the clock changes. I think merging
>>     everything through arm-soc might be the easiest but:
>>     a. In such case I will prepare a tag with clock changes,
>>     b. Anyway I will wait for response from Sylwester and Tomasz.
>> 2. Applied comments from Javier and added his Reviewed-by.
>> 3. Patch 22: added ack from Rob.
>> 4. Minor improvements in existing patches.
>> 5. Five new patches at the end: 23-27 (not reviewed yet).
>>     Some of them could be squashed with existing ones but existing
>>     changes got reviews. Although the final Odroid XU DTS works fine but
>>     in general this is still work-in-progress so I suspect it will grow.
>>     I am releasing it early following Linux concept. :)
>>
>> Patchset is available at my private repo @github:
>> https://github.com/krzk/linux.git for-next/odroid-xu-v3
> 
> Since I have one of these gathering dust on my desk, it's really cool to
> see this series, thanks!
> 
> I've successfully booted that branch to a filesystem on SD card, but USB
> clearly isn't quite right - the USB 2.0 hub is powered up, but only the
> bottom right port will actually enumerate devices; the ethernet is
> nowhere to be seen. However, if I drop into the bootloader and do a "usb
> start" beforehand, it all keeps working into the kernel.

Thanks for letting me know. I am testing the board from TFTP boot which
means "usb start" in Uboot. I'll add it to my todo-list.

> As for the USB
> 3.0, though, the ports report over-current conditions shortly after the
> XHCI probe despite having nothing plugged in :(

Yes, I am seeing this as well. Maybe the cause is lack regulator supplies?

Best regards,
Krzysztof