I'm guessing the ethernet problems are hardware/board related. Take a look at the PHY and make sure it's working OK. Pete On Fri, 2005-08-05 at 21:39 +0200, Sylvain Munaut wrote: > Hello, > > I've been trying to adapt linux ( the HEAD CVS version ) to a > custom board based around a Au1100. To be more precise, the board > use a "cpu module" (CSB650 from Cogent > http://www.cogcomp.com/csb_csb650.htm ) that's placed on a custom PCB. > > > I've compiled and booted a kernel sucessfully, I see the message on the > serial console. It's in Big Endian mode since the boot loaded on the > card is big endian only and I could manage to get it to switch to little > endian ... > > Now, let's go on with the problems : > > * About USB. First time I tried, it just hung but I quicly found out > that it was because I didn't route the 48Mhz clock to USB module. After > that, I had to slightly adapt the ohci bus glue to enable the OHCI big > endian mode. After that, when a USB stick is inserted, it gets detected, > I can mount it and read small files. But when I try to read bigger files > ( just 1 or 2 MB ), I get stuff like : > > [4294743.146000] usb 1-1: reset full speed USB device using au1xxx-ohci > and address 2 > > [4294743.618000] usb 1-1: reset full speed USB device using au1xxx-ohci > and address 2 > > [4294743.891000] usb 1-1: reset full speed USB device using au1xxx-ohci > and address 2 > > [4294744.151000] usb 1-1: reset full speed USB device using au1xxx-ohci > and address 2 > > [4294744.328000] au1xxx-ohci au1xxx-ohci.0: bad entry 4b > > > [4294744.346000] au1xxx-ohci au1xxx-ohci.0: bad entry ac450000 > > > [4294744.363000] au1xxx-ohci au1xxx-ohci.0: bad entry 8f820014 > > > [4294744.381000] au1xxx-ohci au1xxx-ohci.0: bad entry 38210001 > > > [4294744.495000] hub 1-0:1.0: port 1 disabled by hub (EMI?), > re-enabling... > > [4294744.515000] usb 1-1: USB disconnect, address 2 > > > [4294745.532000] au1xxx-ohci au1xxx-ohci.0: IRQ INTR_SF lossage > > > [4294745.532000] usb 1-1: sg_complete, unlink --> -19 > > > [4294745.532000] usb 1-1: sg_complete, unlink --> -19 > > > > > Which means absolutly nothing to me ;( Has anyone got a clue ? > I can't say for sure it's not hardware but the cpu module is used by > others and on the base board, it's just a couple of differential pair > with 90ohm differential impedance, nothing more ... > > > * About ethernet : It works, I have a network access. However I have > two kind of errors. On the RX side, I get quite a lot of "rx miss" > errors (when au1x00_eth debug is on). About 5% of packets are dropped. > That's not _too_ much of a problem as log as it doesn't increase. But > what can that be due too ? > > A more annoying problem is that I get a lot of : > [ 506.397000] NETDEV WATCHDOG: eth0: transmit timed out > > > [ 506.412000] eth0: au1000_tx_timeout: dev=8048b400 > > theses are quite comment when I transmitt a lot > and they completly ruin the transmission > (_real_ slow !). > > Heres is some stats from ifconfig : > > RX packets:50496 errors:76 dropped:76 overruns:0 frame:0 > > > TX packets:49573 errors:47 dropped:0 overruns:0 carrier:74 > > > > > > Any insight / suggestion is appreciated, I'm getting desperate ;) > > > Sylvain > > > >
