Hello,
I ported U-Boot on my custom MPC8270 board. Everything seems to go well but my ARP packets are malformed:
=> ping 192.168.0.1 Trying FCC1 ETHERNET Using FCC1 ETHERNET device sending ARP for c0a80001 ARP broadcast 1 cycles: 25 status: 6c00 ARP broadcast 2 cycles: 20 status: 6c00 ping failed; host 192.168.0.1 is not alive
[60 bytes on wire] <- correct correct broadcast correct mac addr ARP type ----------------- ------------------ ----------- 00000000 ff ff ff ff ff ff da b0 4e 0f 0a 26 08 06 00 01 | <- correct 00000010 4e 0f 0a 26 08 06 00 01 4e 0f 0a 26 08 06 00 01 | <- malformed 00000020 00 00 00 00 00 00 c0 a8 00 01 00 00 00 00 00 00 | <- correct 00000030 c0 a8 00 01 00 00 00 00 00 00 00 01 | <- malformed 0000003c
The source mac address seems incorrectly and partially duplicated at byte 16. Data is not random, but duplicated or mispositioned.
I saw the following thread: http://lists.denx.de/pipermail/u-boot/2008-January/028159.html
So I checked and double-checked my SDRAM configuration but cannot find anything wrong. I also get the same results in BBI or PBI.
MII monitoring works correctly: => mii dump
miiphy_read(0x0) @ 0x1 = 0x2100 0. (2100) -- PHY control register -- (8000:0000) 0.15 = 0 reset (4000:0000) 0.14 = 0 loopback (2040:2000) 0. 6,13 = b01 speed selection = 100 Mbps (1000:0000) 0.12 = 0 A/N enable (0800:0000) 0.11 = 0 power-down (0400:0000) 0.10 = 0 isolate (0200:0000) 0. 9 = 0 restart A/N (0100:0100) 0. 8 = 1 duplex = full (0080:0000) 0. 7 = 0 collision test enable (003f:0000) 0. 5- 0 = 0 (reserved)
=> bdinfo bd address = 0x07BA3FB4 memstart = 0x00000000 memsize = 0x08000000 flashstart = 0xF4000000 flashsize = 0x02000000 flashoffset = 0x00033000 sramstart = 0x00000000 sramsize = 0x00000000 immr_base = 0xF0000000 bootflags = 0x00000001 vco = 580.608 MHz sccfreq = 145.152 MHz brgfreq = 145.152 MHz intfreq = 414.720 MHz cpmfreq = 290.304 MHz busfreq = 82.944 MHz ethaddr = DA:B0:4E:0F:0A:26 IP addr = 192.168.0.42 baudrate = 115200 bps
Anything I could have forgotten to check ?
Best regards, Rémi Lefevre