Hi, On Thu, Jul 14, 2011 at 01:34:54PM +0200, Enric Balletbò i Serra wrote: > Playing with USB ethernet gadget on IGEP boards with mainline kernel > (Linux 3.0.0-rc7) I observed one strange behavior. The ethernet gadget > works with one board with OMAP3530 but it doesn't with another one > with DM3730. The log looks like this: > > root@igep00x0:~# modprobe g_ether > > [ 51.420257] g_ether gadget: using random host ethernet address > [ 51.427886] usb0: MAC da:93:4b:2d:55:e9 > [ 51.431915] usb0: HOST MAC 42:47:83:70:46:b6 > [ 51.436706] g_ether gadget: Ethernet Gadget, version: Memorial Day 2008 > [ 51.443725] g_ether gadget: g_ether ready > [ 51.447906] musb-hdrc musb-hdrc: MUSB HDRC host driver > [ 51.455871] musb-hdrc musb-hdrc: new USB bus registered, assigned > bus number 1 > [ 51.464141] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002 > [ 51.471313] usb usb1: New USB device strings: Mfr=3, Product=2, > SerialNumber=1 > [ 51.478912] usb usb1: Product: MUSB HDRC host driver > [ 51.484161] usb usb1: Manufacturer: Linux 3.0.0-rc7-00027-g8d86e5f musb-hcd > [ 51.491485] usb usb1: SerialNumber: musb-hdrc > [ 51.498321] hub 1-0:1.0: USB hub found > [ 51.502410] hub 1-0:1.0: 1 port detected > > root@igep00x0:~# ifconfig usb0 192.168.7.2 > > usb0 Link encap:Ethernet HWaddr DA:93:4B:2D:55:E9 > inet addr:192.168.7.2 Bcast:192.168.7.255 Mask:255.255.255.0 > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:0 errors:0 dropped:0 overruns:0 frame:0 > TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 > collisions:0 txqueuelen:1000 > RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) > > root@igep00x0:~# ping 192.168.7.1 > PING 192.168.7.1 (192.168.7.1): 56 data bytes > > With DM3730 I can't ping the other side (the same configuration with > OMAP3530 works without problems). Any clue on this ? DMA problem ?? Can you check if PIO-only works ? -- balbi
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