Hi, i'm not sure this is related, but i noticed something ugly in driver/usb/chipidea/usbmisc_imx.c. The compatible "fsl,imx6ul-usbmisc" uses imx6sx_usbmisc_ops, which uses usbmisc_imx6sx_init (which also calls usbmisc_imx6q_init). Within usbmisc_imx6q_init the flag MX6_BM_NON_BURST_SETTING is enabled. But according to the i.MX6 ULL reference manual this bit is marked as reserved and set to zero at reset. So i think it would be better to have separate imx6ul_usbmisc_ops. Regards Stefan -- 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