2 SCC ethernet on MPC860

[HORIUCHI satoshi <horiuchi@openloop.co.jp>]

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

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