Yuli,
Thanks very much!
Here is the sympotoms.
Based on the PQ2FADS-VR schematic, I route parallel portC pin PC17(Clk 15 for RX) and pin PC16(Clk16 for TX) for FCC3. PortB PB4~PB17 are enabled for FCC3. When I use ping command, I got "fec: tx error!" message in the console. I found the message is from fec_send(...) at cpu/mpc8260/ether_fcc.c. It seems CPM did not send out the data to Phy.
1) I check BCSR3. Both FETHIEN2 and FETH2_RST are 1. 2) Phy Register seems OK (Reg0 = 0x2100, reg1 = 0x7809). 3) I check PortB PB4~PB17. Dedicated Pin setting seems OK.
Where do I need to check?
I appreciate your help!
Regards,
Jihua
-----Original Message----- From: Yuli Barcohen [mailto:yuli@arabellasw.com] Sent: Saturday, July 17, 2004 3:53 PM To: Jihua Cheng Cc: u-boot-users@lists.sourceforge.net Subject: Re: [U-Boot-Users] PQ2FADS-VR 2nd Ethernet
Jihua Cheng writes:
Jihua> Hi, I have a PQ2FADS-VR board which u-boot 1.0.0
Upgrade to the top of CVS before you start changing anything. 1.0.0 is too old.
Jihua> runs well. Ethernet port1(FCC2) and Serial port1(SCC1) run Jihua> pretty well.
Jihua> I am trying to make Ethernet port2(FCC3) work. In the Jihua> configuration file mpc8260ads.h, I added
[...code deleted...]
Jihua> And in board\mpc8260ads\mpc8260ads.c, I enabled the parall Jihua> portC pin PC16 and PC17; PortB PB4~PB17. The new definition Jihua> for portB and portC are
[...code deleted...]
Jihua> However, Ethernet port2 on SCC3 still does not work.
Jihua> Could anyone tell me where I am wrong, or what I missed?
First of all, "does not work" is not good problem description. Could you explain what happens exactly? On this board, there are several more things which can require initialisation. Check BCSR and PHY. If you upgrade to CVS top, you'll see what's done for FCC2. To check PHY state, you can use mii command.