Hi John, > John Youn <John.Youn@xxxxxxxxxxxx> hat am 16. August 2016 um 21:20 > geschrieben: > > > On 8/16/2016 9:44 AM, Stefan Wahren wrote: > > Hi John, > > > >> John Youn <John.Youn@xxxxxxxxxxxx> hat am 16. August 2016 um 03:30 > ... > > [ 2.476378] dwc2 20980000.usb: dwc2_set_parameters() > > [ 2.476391] dwc2 20980000.usb: Setting dma_desc_fs_enable to 0 > > [ 2.476418] dwc2 20980000.usb: Setting external_id_pin_ctl to 0 > > [ 2.476429] dwc2 20980000.usb: Setting hibernation to 0 > > [ 2.476449] dwc2 20980000.usb: 0 invalid for host_rx_fifo_size. Check HW > > configuration. > > [ 2.491704] dwc2 20980000.usb: Setting host_rx_fifo_size to 4096 > > [ 2.491727] dwc2 20980000.usb: 0 invalid for host_nperio_tx_fifo_size. > > Check > > HW configuration. > > [ 2.507853] dwc2 20980000.usb: Setting host_nperio_tx_fifo_size to 0 > > [ 2.507875] dwc2 20980000.usb: 0 invalid for host_perio_tx_fifo_size. > > Check > > HW configuration. > > [ 2.524246] dwc2 20980000.usb: Setting host_perio_tx_fifo_size to 0 > > Thanks for the logs. > > It looks like if dr_mode == peripheral, dwc2 doesn't populate the > following host-only values from the reset values of the registers. > > * hw_params->host_nperio_tx_fifo_size > * hw_params->host_perio_tx_fifo_size > > Thus when it goes to set the core_params based on the hw_params you > get the error. As peripheral-only, they are never used so it's fine. > > To get rid of the error we can skip setting the host-only parameters > if dr_mode == peripheral. sorry the subject is imprecise. According to the logs if dr_mode == otg we also get [ 2.569573] dwc2 20980000.usb: 0 invalid for host_perio_tx_fifo_size. Check HW configuration. [ 2.585354] dwc2 20980000.usb: Setting host_perio_tx_fifo_size to 0 You already said in 6/6 that's faulty, but i only want to point it out. 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
