From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <3F0BAD39.9060708@earthlink.net> Date: Tue, 08 Jul 2003 22:50:49 -0700 From: Dean Matsen MIME-Version: 1.0 To: Dan Malek Cc: Eugene Surovegin , Dean Matsen , linuxppc-embedded@lists.linuxppc.org Subject: Re: Ethernet PHY chip discovery not working on 855T with 971/972 chips References: <3F0B7B28.7040902@earthlink.net> <5.1.0.14.2.20030708195315.038110e8@mail.ebshome.net> <3F0BA671.1050900@embeddededge.com> In-Reply-To: <3F0BA671.1050900@embeddededge.com> Content-Type: text/plain; charset=us-ascii; format=flowed Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: Dan Malek wrote: > > Eugene Surovegin wrote: > >> It usually means that your hw lacks pull-up on MII MDIO line. > > > Yep, and even when PHYs indicate they have internal pull-ups, either > they don't or they aren't sufficient. > > > -- Dan > > > > Yes, I see we have no pullup on that line. We do dedicated HVAC applications, so we don't need to do this search. Our dedicated software wouldn't talk to the chip at the wrong address. Don't you think the fix from my original message should still be considered for integration into the kernel? It will improve the odds that the kernel can auto-detect someone's hardware.... Thanks Dean ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/