From: Andrew Lunn <andrew@lunn.ch>
To: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: Florian Fainelli <f.fainelli@gmail.com>, netdev@vger.kernel.org
Subject: Re: PHY hardware reset
Date: Sun, 6 Mar 2016 01:22:21 +0100 [thread overview]
Message-ID: <20160306002221.GC1976@lunn.ch> (raw)
In-Reply-To: <56DB5924.3020206@cogentembedded.com>
On Sun, Mar 06, 2016 at 01:09:40AM +0300, Sergei Shtylyov wrote:
> Hello.
>
> I have a need to de-assert the active-low PHY hardware reset
> signal (mapped to a GPIO) before the MDIO bus scansince it's left
> asserted by the bootloader (U-Boot).
Hi Sergei
There is a thread about power sequencing for USB devices going on at
the moment. You have a very similar issue. The solution should be
generic enough to apply to MDIO busses as well as USB busses.
Search for:
[PATCH 1/3] usb: core: add power sequence for USB devices
Andrew
next prev parent reply other threads:[~2016-03-06 0:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-03-05 22:09 PHY hardware reset Sergei Shtylyov
2016-03-06 0:22 ` Andrew Lunn [this message]
2016-03-07 0:54 ` Florian Fainelli
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