Open GoogleCodeExporter opened 8 years ago
The problem is in the JZ4740 device mode driver
(driver/usb/gadget/jz4740_udc.c) and
related to DMA. When PIO mode is forced (jz4740_udc.use_dma=0 in the kernel
command
line) ethernet works fine, though a a lower throughput (16Mbps versus 40Mbps).
Made a system release with jz4740_udc.use_dma=0 as a workaround to this problem.
Original comment by igga...@gmail.com
on 30 Jul 2009 at 12:34
Original issue reported on code.google.com by
igga...@gmail.com
on 21 Jul 2009 at 7:38