[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20160306002221.GC1976@lunn.ch>
Date: Sun, 6 Mar 2016 01:22:21 +0100
From: Andrew Lunn <andrew@...n.ch>
To: Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Cc: Florian Fainelli <f.fainelli@...il.com>, netdev@...r.kernel.org
Subject: Re: PHY hardware reset
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
Powered by blists - more mailing lists