2 SCC ethernet on MPC860
HORIUCHI satoshi
horiuchi at openloop.co.jp
Mon May 14 20:59:54 EST 2001
Hello,
I am developping linux-2.4.4 SCC ethernet driver
on my custom board using MPC860(not 860T).
The ethernet port is assigned SCC1 and SCC2.
SCC1 is working fine with "8xx_io/enet.c" driver
used by default kernel configuration. And when
running only SCC2(SCC1 is disabled), it also works
fine.
I patched this driver to make 2 SCC work together
for ethernet port, and it looks working on the
face of things.
When I set same MAC address(SCC1 and SCC2 have
same MAC address), it works. However, when I set
different MAC address, SCC2 does not recieve any
packets, no interrupts. SCC1 is working fine.
o transmission is ok.
o recieving broadcast packets.
o work good when set promiscuous mode.
o initialization order of SCC1,SCC2 does not relate to.
I guess SCC2 is using MAC address of SCC1 when
recognizing distination physical address of recived
packets???
Any special registers to be set when 2 SCC ethenet?
Thanks in advance.
---
HORIUCHI Satoshi
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
More information about the Linuxppc-embedded
mailing list