From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stefan Roese Date: Thu, 27 Dec 2007 16:38:35 +0100 Subject: [U-Boot-Users] 4xx ethernet bringup In-Reply-To: <842228.9808.qm@web94109.mail.in2.yahoo.com> References: <842228.9808.qm@web94109.mail.in2.yahoo.com> Message-ID: <200712271638.35293.sr@denx.de> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On Saturday 22 December 2007, shami Allam wrote: > > After this if i ping it's not pinging self and also the host > > ip(192.168.13.240). Can you help me out what could be the problem..... => > > mii read 0x01 > > 0x01 > > > when i read the PHY 0x01 register following is the value 0x7849. This > > value show that "No Link". why so. PHY chip i am using DP83848I > > Possibly a PHY configuartion problem. Did you check if you soldered the > correct resistors and condensators? Is the power-supply ok? > > if I do the PHY loopback by enabling the bit 14bit in the BMCR. i am > getting the reply. Still you suspect PHY configuration problem.....or do i > need to do anything at MAC side...... Yes, I still suspect PHY hardware problems. Check (again) all R's and C's, clocks and power supplies. Best regards, Stefan ===================================================================== DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: office at denx.de =====================================================================