From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from py-out-1112.google.com (py-out-1112.google.com [64.233.166.181]) by ozlabs.org (Postfix) with ESMTP id D4687DDE37 for ; Wed, 4 Jul 2007 15:42:29 +1000 (EST) Received: by py-out-1112.google.com with SMTP id a29so4530754pyi for ; Tue, 03 Jul 2007 22:42:26 -0700 (PDT) Message-ID: <8496f91a0707032242w40c0f398s87ab5a9249c0e902@mail.gmail.com> Date: Wed, 4 Jul 2007 09:42:26 +0400 From: "Matvejchikov Ilya" To: "li.chunlin@zte.com.cn" Subject: Re: about FCC of MPC8270 In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed References: <4b73d43f0707030931v42aefc72x2598546e48ae87e8@mail.gmail.com> Cc: linuxppc-embedded@ozlabs.org Reply-To: matvejchikov@gmail.com List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi! Do you use CPM_FCC_SPECIAL_BASE constant? (include/asm-ppc/cpm2.h) In my case (8250, 8260) FCCs only works when it is set to 0x3000... 2007/7/4, li.chunlin@zte.com.cn : > > hello, every one > > I have a board with mpc8270. And there are two ethernet interface by fcc1 > and fcc2. Now in linux kernel 2.6.14 fcc1 is ok, but fcc2 is some wrong. I > set loopback of fcc2 or rmii. that's ok. But i set loopback in phy, it is > wrong. But fcc2 is ok in u-boot. > > I take a look with oscillograph. i find that there is signal from fcc2 to > phy and there is signal from phy to fcc2 in data pins. But fcc2 cannot > receive data and fcc2 can send data. > > who know the reason? Can you tell me? > > thanks. > lichunlin >