On kernel 2.6.24-rc5(from omap-git) I am testing the EHCI controller on
OMAP34xx.
I have connected the device (netchip2280 + g_zero.ko ) to the EHCI controller.
Device side test:
On the gadget zero I run the IN test 6: ./testusb -a -t6 -s1024 -c100
OMAP EHCI HOST status:
On EHCI I can see that, the test does not complete sometimes.
The status of EHCI registers is as follows and the test does not complete.
The system is still up but no USB activity is happening.
# cat /sys/class/usb_host/usb_host1/async
qh/ffc00100 dev3 hs ep1 42002103 40000000 (00001d00 data0 nak4)
ffc01840+in len=1024 04000d80 urb c7d9b6a0
ffc018a0#in len=1024 04000d80 urb c7d9b620
ffc01900#in len=1024 04000d80 urb c7d9b5a0
ffc01960#in len=1024 04000d80 urb c7d9b520
ffc019c0#in len=1024 04000d80 urb c7d9b4a0
ffc01a20#in len=1024 04000d80 urb c7d9b420
ffc01a80#in len=1024 04008d80 urb c7d9b3a0
I suspect the problem with EHCI on OMAP34xx,
as the same netchip device setup with Dell PC EHCI works fine
Any help appreciated? How to go about debugging EHCI side?
Vikram
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