Hi, Is anybody using linux-2.6.10 from kernel.org for testing IBM Ebony board?
I found that 2.6.10 is not aware of U-Boot. That is, it neither understands U-Boot's bd_info nor parses U-Boot's bootargs. So even if the ethernet MAC address is set for EMAC0 on uboot, the kernel doesn't get the value from it. Instead it reads MAC address from Ebony VPD, which results in FF:FF:FF:FF:FF:FF. Isn't it strange that mac address isn't set in its VPD? After some hacks in arch/ppc/platforms/4xx/ebony.c, the kernel now can get MAC address and boot arguments from uboot. However a new problem occurs. When the kernel tries to mount a NFS root filesystem, it complains incomplete network configuration information. See the following message dump. Any hints to solve the problem? Thanks a lot. ## Transferring control to Linux (at address 00000000) ... Linux version 2.6.10 (xjin at swl001.scs.agilent.com) (gcc version 3.3.3 (DENX ELDK 3.1 3.3.3-8)) #11 T ue Feb 15 16:41:47 PST 2005 IBM Ebony port (MontaVista Software, Inc. (source at mvista.com)) Built 1 zonelists Kernel command line: root=/dev/nfs rw nfsroot=192.68.0.47:/opt/eldk3.1/ppc_4xx ip=192.168.0.245:192.168.0.47:::::off <snipped> mal0: Initialized, 4 tx channels, 2 rx channels emac: IBM EMAC Ethernet driver, version 2.0 Maintained by Benjamin Herrenschmidt <benh at kernel.crashing.org> zmii0: input 0 in SMII mode eth0: IBM emac, MAC 00:04:ac:e3:1b:bb eth0: Found Generic MII PHY (0x08) zmii0: input 1 in RMII mode eth1: IBM emac, MAC FF:FF:FF:FF:FF:FF eth1: Found Generic MII PHY (0x09) <--- only eth0's mac address is set on uboot --> mice: PS/2 mouse device common for all mice NET: Registered protocol family 2 IP: routing cache hash table of 1024 buckets, 8Kbytes TCP: Hash tables configured (established 8192 bind 16384) NET: Registered protocol family 1 NET: Registered protocol family 17 eth0: Link is Up eth0: Speed: 100, Full duplex. IP-Config: Incomplete network configuration information. ???? Looking up port of RPC 100003/2 on 130.27.84.47 RPC: sendmsg returned error 101 portmap: RPC call returned error 101 Root-NFS: Unable to get nfsd port number from server, using default Looking up port of RPC 100005/1 on 130.27.84.47 RPC: sendmsg returned error 101 portmap: RPC call returned error 101 Root-NFS: Unable to get mountd port number from server, using default RPC: sendmsg returned error 101 mount: RPC call returned error 101 Root-NFS: Server returned error -101 while mounting /opt/eldk3.1/ppc_4xx VFS: Unable to mount root fs via NFS, trying floppy. Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0) <0>Rebooting in 180 seconds..<6>eth0: Link is Up eth0: Speed: 100, Full duplex. -Shawn.
