Hi,
We are using am335 based board and facing problem in CDC ncm gadget driver(g_ncm.ko) with DMA enabled.
We insmod g_ncm.ko and connect musb0 port to the pc(or other host ),in this case the am335 shows
"gadget: high-speed config #1: CDC Ethernet (NCM) " and terminal is blocked forever.i am not able to access the terminal(shell promt ) and entire system blocked.
If i do ifconfig usb0 up on pc(or other host) then am335 returns the shell promt. and shows
gadget: notify speed 425984000
[ 535.709136] ADDRCONF(NETDEV_CHANGE): usb0: link becomes ready
[ 535.740936] gadget: notify connect true
This happens only when DMA (CPPI41)is enabled for the MUSB.
Do you have any clue on this?