In fact, I once used 12Mhz external crystal, after setting PHYCLK right, both USB 1.1 as host and 2.0 as gadget can work. The kernel version I used is 2.6.28. On Sat, Jan 16, 2010 at 8:39 PM, Maurus Cuelenaere <mcuelenaere@xxxxxxxxx> wrote: > Hi, > > I'm trying to get the USB OTG port working on my device (S3C6410 board), but > am running into problems. > This board doesn't have a 48Mhz clock, so I set the reference clock in the > USB PLL to a 12Mhz external crystal (see patch). > > Still, I'm having trouble getting it to work; I'm seeing these messages (see > attachment for full log): > > s3c-hsotg s3c-hsotg: s3c_hsotg_rx_data: FIFO 8 bytes on ep0 but no req > (DxEPCTl=0x00028000) > hub 1-0:1.0: connect-debounce failed, port 2 disabled > > This looks like the hardware is configured correctly, but the > currently-in-use gadget isn't setting up an EP0 RX transfer? > I've tried Mass Storage, serial, Ethernet, ... gadgets and they all give the > same errors. > > Any hints/pointers would be welcome! > > Thanks, > Maurus Cuelenaere > -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html