From: Daniel Drake <drake@endlessm.com>
To: Kamil Debski <k.debski@samsung.com>
Cc: linux-kernel@vger.kernel.org,
linux-samsung-soc <linux-samsung-soc@vger.kernel.org>,
linux-usb@vger.kernel.org, kishon@ti.com,
Tomasz Figa <t.figa@samsung.com>,
Marek Szyprowski <m.szyprowski@samsung.com>,
gautam.vivek@samsung.com
Subject: Re: [PATCH] phy: phy-samsung-usb2: Change phy power on/power off sequence
Date: Wed, 25 Jun 2014 08:53:54 +0100 [thread overview]
Message-ID: <CAD8Lp4468eAGGCi1v17X00342D5aqXHqwE1TY4aLu40DvO_MAg@mail.gmail.com> (raw)
In-Reply-To: <074a01cf8fc1$e906f0c0$bb14d240$%debski@samsung.com>
On Tue, Jun 24, 2014 at 4:35 PM, Kamil Debski <k.debski@samsung.com> wrote:
> By reboot I guess that you mean typing "reboot" or by using SysRq magic
> and not power cycling?
>
> If so, I had experienced the same symptoms. I guess that the Ethernet
> chip is not reset properly and fails to enumerate without power cycling
> (it's nRESET pin is connected to P3V3).
>
> I found that removing regulator-always-on from buck8_reg: BUCK8 in the
> dts file fixes this problem.
Yes, that fixes the problem. Thanks!
Tested-by: Daniel Drake <drake@endlessm.com>
next prev parent reply other threads:[~2014-06-25 7:54 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-24 12:54 [PATCH] phy: phy-samsung-usb2: Change phy power on/power off sequence Kamil Debski
2014-06-24 15:09 ` Daniel Drake
2014-06-24 15:35 ` Kamil Debski
2014-06-25 5:42 ` Marek Szyprowski
2014-06-25 7:53 ` Daniel Drake [this message]
2014-07-01 9:59 ` Kishon Vijay Abraham I
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