On Monday 06 October 2008, Steve Sakoman wrote: > Build is stock 62c36fdd962de2db5d62a326490913f41c442a5c, no additional patches. > > Without DEBUG_LL, boot silently fails. With DEBUG_LL, one can see that > the failure is due to a NULL pointer dereference in musb. > > I suspect that the root cause is related to: > > <3>i2c_omap i2c_omap.1: controller timed out > <4>twl4030_usb: probe of twl4030_usb failed with error -22 > > Adding David Brownell's i2c-omap timeout workaround patch eliminates > this error Right. I'd suggest merging that, except that would provide zero incentive to actually fix the i2c-omap problem. And I *have* seen those timeout errors on other requests... > and the boot then fails on EHCI. > > I disabled EHCI in defconfig and was able to get the boot to complete. Ditto. I suspect one of those no-timeout busy-waits is just neglecting to complete... :( > However unlike others, I find that musb is not functional -- and the > trick of disconnecting the USB cable and then reconnecting it does not > work. I observed the same thing. More specifically, no IRQs arrive at the twl4030-usb driver. The *very same kernel* works fine on Beagle... is there something different about the USB setup that might explain this? - Dave -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
