We are using a DP83846 with 857T FEC. At the software level, I am just using the plain fec.c, and it works for me.
One note (if you want details, I'll have to check with my hardware guys and get back to you, but here's the gist): The Motorola reference boards use port D for MII, but we used PCMCIA/port A pins instead. This caused us a bit of trouble when bringing up the board, but the resolution was that we had to clear PDPAR[UT], set ECNTRL[PIN_MUX] and set UTMODE[SPLIT]. I pasted these few lines into fec.c's init function and it works like a charm. -----Original Message----- From: Steven Scholz [mailto:[EMAIL PROTECTED] Sent: Thursday, March 21, 2002 5:37 AM To: LinuxPPC; PPCBoot Subject: MPC8xx, FEC and DP83847 !? Hi there, I am about to redesign my board and consider to replace Level One's LXT971 with National's DP83847. Is anyone using National's Phyter DP83846/7 together with MPC8xx FEC? Is there support for this chip like it is for LXT97x, AMD79c874 and QS6612? Or do I have to use ./drivers/net/natsemi.c or somthing similar? Are there any (dis)advantages over the LXT971? Cheers, Steven ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
