Hi, > John Youn <John.Youn@xxxxxxxxxxxx> hat am 17. August 2016 um 00:07 > geschrieben: > > > On 8/16/2016 12:58 PM, Stefan Wahren wrote: > > Hi John, > > ... > > > > like in host mode i took the default values in otg mode for the last two > > here > > (please refer to the logs). The BCM2835 datasheet isn't very helpful. > > > > Do you have any suggestions for valid values or how to get them? > > > > The same values used in host-only mode should work. > > It seems that the reset values for host-mode aren't being read > correctly with dr_mode == otg. I suspect this is the core reset and > force-mode delay problem. > > Can you try with this patch series to see if you get the proper > values? > > http://marc.info/?l=linux-kernel&m=145921907525708 > > This series fixes known issues, but it also breaks at least one > platform and I haven't had time to look at it properly yet. thanks. Yes, that seems to fix host fifo sizes for bcm2835. Here the log after applying patch 2 - 4 and removing all DT FIFO parameters (patch 1 has already been merged): Linux raspberrypi 4.7.0-rc7-next-20160719+ #23 Wed Aug 17 18:15:24 UTC 2016 armv6l [ 2.290723] dwc2_lowlevel_hw_init() [ 2.298123] dwc2_lowlevel_hw_enable() [ 2.305451] dwc2_get_dr_mode() [ 2.365040] dwc2_get_hwparams() [ 2.371785] dwc2 20980000.usb: Core Release: 2.80a (snpsid=4f54280a) [ 2.371801] dwc2 20980000.usb: hwcfg1=00000000 [ 2.371813] dwc2 20980000.usb: hwcfg2=228ddd50 [ 2.371823] dwc2 20980000.usb: hwcfg3=0ff000e8 [ 2.371833] dwc2 20980000.usb: hwcfg4=1ff00020 [ 2.371843] dwc2 20980000.usb: grxfsiz=00001000 [ 2.371853] dwc2 20980000.usb: Forcing mode to host [ 2.371869] dwc2 20980000.usb: gnptxfsiz=01001000 [ 2.371880] dwc2 20980000.usb: hptxfsiz=02002000 [ 2.371890] dwc2 20980000.usb: Forcing mode to device [ 2.423450] dwc2 20980000.usb: gnptxfsiz=00201000 [ 2.423468] dwc2 20980000.usb: Detected values from hardware: [ 2.423480] dwc2 20980000.usb: op_mode=0 [ 2.423490] dwc2 20980000.usb: arch=2 [ 2.423500] dwc2 20980000.usb: dma_desc_enable=0 [ 2.423511] dwc2 20980000.usb: power_optimized=0 [ 2.423520] dwc2 20980000.usb: i2c_enable=0 [ 2.423530] dwc2 20980000.usb: hs_phy_type=1 [ 2.423540] dwc2 20980000.usb: fs_phy_type=1 [ 2.423550] dwc2 20980000.usb: utmi_phy_data_width=0 [ 2.423559] dwc2 20980000.usb: num_dev_ep=7 [ 2.423570] dwc2 20980000.usb: num_dev_perio_in_ep=0 [ 2.423579] dwc2 20980000.usb: host_channels=8 [ 2.423590] dwc2 20980000.usb: max_transfer_size=524287 [ 2.423601] dwc2 20980000.usb: max_packet_count=1023 [ 2.423611] dwc2 20980000.usb: nperio_tx_q_depth=0x4 [ 2.423621] dwc2 20980000.usb: host_perio_tx_q_depth=0x4 [ 2.423631] dwc2 20980000.usb: dev_token_q_depth=0x8 [ 2.423641] dwc2 20980000.usb: enable_dynamic_fifo=1 [ 2.423651] dwc2 20980000.usb: en_multiple_tx_fifo=1 [ 2.423661] dwc2 20980000.usb: total_fifo_size=4080 [ 2.423671] dwc2 20980000.usb: host_rx_fifo_size=4096 [ 2.423681] dwc2 20980000.usb: host_nperio_tx_fifo_size=256 [ 2.423691] dwc2 20980000.usb: host_perio_tx_fifo_size=512 [ 2.423699] dwc2 20980000.usb: [ 2.423709] dwc2 20980000.usb: dwc2_set_parameters() [ 2.423723] dwc2 20980000.usb: Setting dma_desc_fs_enable to 0 [ 2.423748] dwc2 20980000.usb: Setting external_id_pin_ctl to 0 [ 2.423760] dwc2 20980000.usb: Setting hibernation to 0 [ 2.423777] dwc2_force_dr_mode() [ 2.430509] dwc2 20980000.usb: Clearing force mode bits [ 2.499028] dwc2_gadget_init() [ 2.505422] dwc2 20980000.usb: Specified GNPTXFDEP=1024 > 32 [ 2.514502] dwc2 20980000.usb: EPs: 8, dedicated fifos, 4080 entries in SPRAM [ 2.542143] dwc2 20980000.usb: bound driver zero [ 2.550164] dwc2_hcd_init() [ 2.556602] dwc2 20980000.usb: DWC OTG Controller [ 2.564878] dwc2 20980000.usb: new USB bus registered, assigned bus number 1 [ 2.575467] dwc2 20980000.usb: irq 33, io mem 0x00000000 # cat /sys/kernel/debug/20980000.usb/fifo Non-periodic FIFOs: RXFIFO: Size 4096 NPTXFIFO: Size 32, Start 0x00200000 Periodic TXFIFOs: DPTXFIFO 1: Size 512, Start 0x00001020 DPTXFIFO 2: Size 512, Start 0x00001220 DPTXFIFO 3: Size 512, Start 0x00001420 DPTXFIFO 4: Size 512, Start 0x00001620 DPTXFIFO 5: Size 512, Start 0x00001820 DPTXFIFO 6: Size 768, Start 0x00001a20 DPTXFIFO 7: Size 768, Start 0x00001d20 -- 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