* Ezequiel Garcia | 2013-07-06 18:39:50 [-0300]: >Hi Sebastian, Hi Ezequiel, >After some minor DT tweaking on the current patchset, >I've managed to detect an USB mass storage device in the >second instance (host / usb1) using a Beaglebone black board. Beaglebone black, that one has a different device tree which is not mainline, right? >However, after I unplug the device, it's not recognized >when I replug it. Maybe you can take a look at this; >i'll do some more testings and see what I can come up with. I figured out why my Host is not recognized on the second plug: At module load time, musb_start() is executed and it sets the MUSB_DEVCTL_SESSION in devctl. After the device is unplugged dsps_musb_try_idle() schedules a timer which executes the local otg_timer() function. Since the phy is in OTG_STATE_A_WAIT_BCON state, the MUSB_DEVCTL_SESSION bit gets removed. If the removal of the bit is ignored, the device is recognized after a re-plug. Now a question: I see that am35x and anothers also remove that flag in thsi case. How is the flag supposed to come back? I see that blackfin removes that bit and stuffs it back in. Any idea what should be done here? >Also, FWIW, I think that having a separate USB phy for am35xx would be >much better. So you would prefer a new file with 90% copy of what we already have in the nop_phy? Sebastian -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
