linux-kernel - Re: [PATCH] net: mv643xx_eth: Add missing phy_addr

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20131105230024.GB8308@titan.lakedaemon.net>
Date:	Tue, 5 Nov 2013 18:00:24 -0500
From:	Jason Cooper <jason@...edaemon.net>
To:	Arnaud Ebalard <arno@...isbad.org>
Cc:	Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Andrew Lunn <andrew@...n.ch>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	linuxppc-dev@...ts.ozlabs.org, David Miller <davem@...emloft.net>,
	Lennert Buytenhek <buytenh@...tstofly.org>
Subject: Re: [PATCH] net: mv643xx_eth: Add missing phy_addr_set in DT mode

On Tue, Nov 05, 2013 at 11:12:00PM +0100, Arnaud Ebalard wrote:
> Hi Jason,
> 
> Jason Gunthorpe <jgunthorpe@...idianresearch.com> writes:
> 
> > Commit cc9d4598 'net: mv643xx_eth: use of_phy_connect if phy_node
> > present' made the call to phy_scan optional, if the DT has a link to
> > the phy node.
> >
> > However phy_scan has the side effect of calling phy_addr_set, which
> > writes the phy MDIO address to the ethernet controller. If phy_addr_set
> > is not called, and the bootloader has not set the correct address then
> > the driver will fail to function.
> 
> Thanks *a lot* for fixing this one! I had the issue on my ReadyNAS 102
> (Armada 370 based) which I had put on a todo list and temporarily

readynas duo v2?

thx,

Jason.

> workarounded by including a 'ping whatever' call in my u-boot env in
> order to force it to do the init. Without it, I was unable to properly
> use the interface. With your fix, after multiple reboots to test it,
> everything works as expected. So, FWIW: 
> 
> Tested-by: Arnaud Ebalard <arno@...isbad.org>
> 
> Cheers,
> 
> a+
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/