Hi, I saw that you've done a patch for the samsung udc driver [1]. On 2412 I have got similar problem that lead to make similar to this.
For the undocumented register, you should look at the lh7a40x datasheet. The udc controller are very similar and the doc is better than samsung one... IRRC there one bit that told us the fifo is full, another bit that the fifo is full. Hope it can help Matthieu PS : stall stuff is also broken on this driver, but as you only use ethernet, you shouldn't use it. [1] http://svnweb.openmoko.org/trunk/src/target/kernel/patches/ s3c2410_udc-2440_dual_packet-workaround.patch?rev=3116&sortby=date&view=markup
