I very recently took an old project that was running a version 2.6.12-uc0 and recompiled it to the newer 2.6.37-uc0 code base (shared memory, yippie!)
The board has a micrel KSZ8873MLL PHY which is essentially a 3 port Ethernet switch allows for one of them to talk to the freescale 5275 and the other two to face the world as what appears as two Ethernet ports. While only using one of the FEC controllers on the 5275. In the 2.6.12 version of the kernel everything worked well. Both outside facing Ethernet ports worked just fine and everyone was happy. On the newer 2.6.37 kernel only one of the outside facing ports works while the other one does not appear to switch any traffic to the 5275. I took a gander through the drivers/net/fec.c file and actually had to marvel at how much different it is from the old driver code. Some other things I have noticed is that the old code only has the following traces in proc/kmsg: <4>FEC ENET Version 0.2 <4>fec: PHY @ 0x1, ID 0x00221430 -- unknown PHY! While the new one has these: <6>FEC Ethernet Driver <6>fec_enet_mii_bus: probed <6>eth0: Freescale FEC PHY driver [UNKNOWN] (mii_bus:phy_addr=1:01, irq=-1) <6>PHY: 1:01 - Link is Up - 100/Full (Actually every time the link goes up/down the bottom line is added appropriately unlike the old kernel.) I am assuming that the reason for this is buried somewhere in the fec.c file potentially in the fec_enet_mii_probe() function or maybe in a mii write somewhere? Anyone have any ideas as to where this sort of configuration issue could be buried and how/where I can change things to get back to the old functionality? Regards, IMPORTANT NOTICE: This communication, including any attachments, is the property of FreeWave Technologies, Inc. and may contain proprietary, confidential, or privileged information. Unauthorized use or disclosure of this communication is strictly prohibited and may be unlawful. Information contained herein may be subject to a Proprietary Information / Non-Disclosure Agreement and shall be maintained in confidence and not disclosed to third parties without the written consent of FreeWave Technologies, Inc. If you have received this communication in error, please immediately notify the sender and destroy all copies of the communication and any attachments.
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