From: Olof Johansson <olof@lixom.net>
To: Nathaniel Case <ncase@xes-inc.com>
Cc: netdev@vger.kernel.org, pasemi-linux@ozlabs.org, afleming@freescale.com
Subject: Re: [Pasemi-linux] I2C MDIO support for pasemi_mac driver
Date: Fri, 7 Mar 2008 12:48:54 -0600 [thread overview]
Message-ID: <20080307184854.GA23402@lixom.net> (raw)
In-Reply-To: <20080307183738.GA22366@lixom.net>
On Fri, Mar 07, 2008 at 12:37:38PM -0600, Olof Johansson wrote:
> The i2c bus number should be available in the phy driver when it's
> probed/registered, so you should be able to get to it there. It's awkward
> that the MDIO and i2c busses have separate namespaces, it'll make it hard
> if there's ever a system with both mdio and smbus-based phys. We could
> control that by how the mdio bus is specified in device tree on those
> systems though, and make sure the bus number for the "real" mdio bus is
> sufficiently offset to give room for the smbus-based bus numbers below.
On second thought, it might be a better idea to change from BUS:ID to
BUSTYPE:BUS:ID in phylib, to separate the namespaces.
That, plus a way to get to an i2c bus number from a device tree node,
and we should be all set. That might be tricker though.
-Olof
next prev parent reply other threads:[~2008-03-07 18:43 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1204911643.8864.15.camel@localhost.localdomain>
2008-03-07 18:37 ` I2C MDIO support for pasemi_mac driver Olof Johansson
2008-03-07 18:48 ` Olof Johansson [this message]
2008-03-07 19:28 ` [Pasemi-linux] " Nathaniel Case
2008-03-13 21:57 ` Nate Case
2008-04-02 22:45 ` Andy Fleming
2008-04-03 13:45 ` Nate Case
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