| Message ID | 20200413143107.181669-1-marex@denx.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | [RFC] usb: dwc2: Run the core connect in dwc2_hcd_init() | expand |
Hi, On 4/13/2020 6:31 PM, Marek Vasut wrote: > On STM32MP1 without the STUSB1600 USB-C chip (i.e. with plain USB-OTG Could you please provide GSNPSID, GHWCFG1-4 register values for STM32MP1. > micro-B plug with ID and VBUS detection), the USB OTG port only works > if a micro-B device (e.g. a USB stick) is plugged in first. Once this > is done, both micro-B device and host (e.g. a PC via a USB A-to-microB > cable) are correctly detected and recognized. If a USB host is plugged > in first (e.g. a PC), then the PC does not detect the STM32MP1 at all. > > By running the core connect code in dwc2_hcd_init(), both device and > host are detected and the USB works as expected. However, it is not > clear whether this is the correct solution. > > Signed-off-by: Marek Vasut <marex@denx.de> > Cc: Amelie Delaunay <amelie.delaunay@st.com> > Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> > Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> > Cc: Minas Harutyunyan <hminas@synopsys.com> > To: linux-usb@vger.kernel.org > --- > drivers/usb/dwc2/hcd.c | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c > index b90f858af960..ead605efeb24 100644 > --- a/drivers/usb/dwc2/hcd.c > +++ b/drivers/usb/dwc2/hcd.c > @@ -5237,6 +5237,11 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg) > > dwc2_enable_global_interrupts(hsotg); > > + dwc2_hsotg_core_init_disconnected(hsotg, false); > + /* Enable ACG feature in device mode,if supported */ > + dwc2_enable_acg(hsotg); > + dwc2_hsotg_core_connect(hsotg); > + > return 0; > > error4: > Thanks, Minas
On 4/13/20 4:45 PM, Minas Harutyunyan wrote: > Hi, Hi, > On 4/13/2020 6:31 PM, Marek Vasut wrote: >> On STM32MP1 without the STUSB1600 USB-C chip (i.e. with plain USB-OTG > > Could you please provide GSNPSID, GHWCFG1-4 register values for STM32MP1. GSNPSID = 0x4f54330a GHWCFG1 = 0x00000000 GHWCFG2 = 0x228fe150 GHWCFG3 = 0x03b892e8 GHWCFG4 = 0xe3f00030
Hi, On 4/13/2020 6:54 PM, Marek Vasut wrote: > On 4/13/20 4:45 PM, Minas Harutyunyan wrote: >> Hi, > > Hi, > >> On 4/13/2020 6:31 PM, Marek Vasut wrote: >>> On STM32MP1 without the STUSB1600 USB-C chip (i.e. with plain USB-OTG >> >> Could you please provide GSNPSID, GHWCFG1-4 register values for STM32MP1. > > GSNPSID = 0x4f54330a > GHWCFG1 = 0x00000000 > GHWCFG2 = 0x228fe150 > GHWCFG3 = 0x03b892e8 > GHWCFG4 = 0xe3f00030 > STM32MP1 core doesn't support ACG feature: GHWCFG4_ACG_SUPPORTED = 0. So, in your patch for STM32MP1 at least these lines are no meaning: + /* Enable ACG feature in device mode,if supported */ + dwc2_enable_acg(hsotg); Looks like you just copied this chirp from dwc2_conn_id_status_change() function. dwc2_hsotg_core_init_disconnected() function is device mode function, not sure that it's safe to call it for host mode in dwc2_hcd_init(). Thanks, Minas
On 4/13/20 5:27 PM, Minas Harutyunyan wrote: > Hi, Hi, > On 4/13/2020 6:54 PM, Marek Vasut wrote: >> On 4/13/20 4:45 PM, Minas Harutyunyan wrote: >>> Hi, >> >> Hi, >> >>> On 4/13/2020 6:31 PM, Marek Vasut wrote: >>>> On STM32MP1 without the STUSB1600 USB-C chip (i.e. with plain USB-OTG >>> >>> Could you please provide GSNPSID, GHWCFG1-4 register values for STM32MP1. >> >> GSNPSID = 0x4f54330a >> GHWCFG1 = 0x00000000 >> GHWCFG2 = 0x228fe150 >> GHWCFG3 = 0x03b892e8 >> GHWCFG4 = 0xe3f00030 >> > STM32MP1 core doesn't support ACG feature: GHWCFG4_ACG_SUPPORTED = 0. > So, in your patch for STM32MP1 at least these lines are no meaning: > > + /* Enable ACG feature in device mode,if supported */ > + dwc2_enable_acg(hsotg); The comment says it enables the ACG only if it's supported. > Looks like you just copied this chirp from dwc2_conn_id_status_change() > function. Yes, that's correct, verbatim. > dwc2_hsotg_core_init_disconnected() function is device mode function, > not sure that it's safe to call it for host mode in dwc2_hcd_init(). OK well, if I don't use this patch and I plug in a USB cable from the host PC, then the STM32MP1 isn't detected by the host PC. Do you have any idea what the correct fix would be then ?
Hi, On 4/13/2020 9:00 PM, Marek Vasut wrote: > On 4/13/20 5:27 PM, Minas Harutyunyan wrote: >> Hi, > > Hi, > >> On 4/13/2020 6:54 PM, Marek Vasut wrote: >>> On 4/13/20 4:45 PM, Minas Harutyunyan wrote: >>>> Hi, >>> >>> Hi, >>> >>>> On 4/13/2020 6:31 PM, Marek Vasut wrote: >>>>> On STM32MP1 without the STUSB1600 USB-C chip (i.e. with plain USB-OTG >>>> >>>> Could you please provide GSNPSID, GHWCFG1-4 register values for STM32MP1. >>> >>> GSNPSID = 0x4f54330a >>> GHWCFG1 = 0x00000000 >>> GHWCFG2 = 0x228fe150 >>> GHWCFG3 = 0x03b892e8 >>> GHWCFG4 = 0xe3f00030 >>> >> STM32MP1 core doesn't support ACG feature: GHWCFG4_ACG_SUPPORTED = 0. >> So, in your patch for STM32MP1 at least these lines are no meaning: >> >> + /* Enable ACG feature in device mode,if supported */ >> + dwc2_enable_acg(hsotg); > > The comment says it enables the ACG only if it's supported. > >> Looks like you just copied this chirp from dwc2_conn_id_status_change() >> function. > > Yes, that's correct, verbatim. > >> dwc2_hsotg_core_init_disconnected() function is device mode function, >> not sure that it's safe to call it for host mode in dwc2_hcd_init(). > > OK well, if I don't use this patch and I plug in a USB cable from the > host PC, then the STM32MP1 isn't detected by the host PC. Do you have > any idea what the correct fix would be then ? > Please provide without your patch: 1. debugfs: params and hw_params 2. debug log 3. regdump before and after connecting device to host where issue seen. Thanks, Minas
On 4/14/20 9:14 AM, Minas Harutyunyan wrote: > Hi, > > On 4/13/2020 9:00 PM, Marek Vasut wrote: >> On 4/13/20 5:27 PM, Minas Harutyunyan wrote: >>> Hi, >> >> Hi, >> >>> On 4/13/2020 6:54 PM, Marek Vasut wrote: >>>> On 4/13/20 4:45 PM, Minas Harutyunyan wrote: >>>>> Hi, >>>> >>>> Hi, >>>> >>>>> On 4/13/2020 6:31 PM, Marek Vasut wrote: >>>>>> On STM32MP1 without the STUSB1600 USB-C chip (i.e. with plain USB-OTG >>>>> >>>>> Could you please provide GSNPSID, GHWCFG1-4 register values for STM32MP1. >>>> >>>> GSNPSID = 0x4f54330a >>>> GHWCFG1 = 0x00000000 >>>> GHWCFG2 = 0x228fe150 >>>> GHWCFG3 = 0x03b892e8 >>>> GHWCFG4 = 0xe3f00030 >>>> >>> STM32MP1 core doesn't support ACG feature: GHWCFG4_ACG_SUPPORTED = 0. >>> So, in your patch for STM32MP1 at least these lines are no meaning: >>> >>> + /* Enable ACG feature in device mode,if supported */ >>> + dwc2_enable_acg(hsotg); >> >> The comment says it enables the ACG only if it's supported. >> >>> Looks like you just copied this chirp from dwc2_conn_id_status_change() >>> function. >> >> Yes, that's correct, verbatim. >> >>> dwc2_hsotg_core_init_disconnected() function is device mode function, >>> not sure that it's safe to call it for host mode in dwc2_hcd_init(). >> >> OK well, if I don't use this patch and I plug in a USB cable from the >> host PC, then the STM32MP1 isn't detected by the host PC. Do you have >> any idea what the correct fix would be then ? >> > > Please provide without your patch: > 1. debugfs: params and hw_params # cat /sys/kernel/debug/usb/49000000.usb-otg/hw_params op_mode : 0 arch : 2 dma_desc_enable : 1 enable_dynamic_fifo : 1 en_multiple_tx_fifo : 1 rx_fifo_size : 1024 host_nperio_tx_fifo_size : 1024 dev_nperio_tx_fifo_size : 1024 host_perio_tx_fifo_size : 1024 nperio_tx_q_depth : 4 host_perio_tx_q_depth : 4 dev_token_q_depth : 8 max_transfer_size : 524287 max_packet_count : 1023 host_channels : 16 hs_phy_type : 1 fs_phy_type : 1 i2c_enable : 0 num_dev_ep : 8 num_dev_perio_in_ep : 0 total_fifo_size : 952 power_optimized : 1 utmi_phy_data_width : 0 snpsid : 0x4f54330a dev_ep_dirs : 0x0 # cat /sys/kernel/debug/usb/49000000.usb-otg/params otg_cap : 2 dma_desc_enable : 0 dma_desc_fs_enable : 0 speed : 0 enable_dynamic_fifo : 1 en_multiple_tx_fifo : 1 host_rx_fifo_size : 440 host_nperio_tx_fifo_size : 256 host_perio_tx_fifo_size : 256 max_transfer_size : 524287 max_packet_count : 1023 host_channels : 16 phy_type : 1 phy_utmi_width : 8 phy_ulpi_ddr : 0 phy_ulpi_ext_vbus : 0 i2c_enable : 0 ipg_isoc_en : 0 ulpi_fs_ls : 0 host_support_fs_ls_low_power : 0 host_ls_low_power_phy_clk : 0 ts_dline : 0 reload_ctl : 1 ahbcfg : 0x2 uframe_sched : 1 external_id_pin_ctl : 0 power_down : 0 lpm : 1 lpm_clock_gating : 1 besl : 1 hird_threshold_en : 1 hird_threshold : 4 service_interval : 0 host_dma : 1 g_dma : 1 g_dma_desc : 1 g_rx_fifo_size : 256 g_np_tx_fifo_size : 32 g_tx_fifo_size[0] : 0 g_tx_fifo_size[1] : 128 g_tx_fifo_size[2] : 128 g_tx_fifo_size[3] : 64 g_tx_fifo_size[4] : 64 g_tx_fifo_size[5] : 64 g_tx_fifo_size[6] : 64 g_tx_fifo_size[7] : 32 g_tx_fifo_size[8] : 32 g_tx_fifo_size[9] : 0 g_tx_fifo_size[10] : 0 g_tx_fifo_size[11] : 0 g_tx_fifo_size[12] : 0 g_tx_fifo_size[13] : 0 g_tx_fifo_size[14] : 0 g_tx_fifo_size[15] : 0 > 2. debug log What kind of debug log ? > 3. regdump before and after connecting device to host where issue seen. Before: # cat /sys/kernel/debug/usb/49000000.usb-otg/regdump [ 279.158994] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.165324] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.173123] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.180893] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.188640] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.196381] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.204120] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.211944] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.219671] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.227429] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.235172] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.242976] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.250717] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.258493] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.266266] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.273985] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.281769] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.289546] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.297319] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.305032] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.312816] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.320575] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.328357] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.336102] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.343840] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.351622] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.359414] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.367148] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.374886] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.382669] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.390457] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.398194] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.405934] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.413716] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.421494] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.429243] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.437004] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.444746] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.452550] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.460302] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.468055] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.475795] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.483596] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.491344] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.499104] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.506886] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.514608] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.522392] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.530153] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.537934] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.545656] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.553441] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.561208] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.568987] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.576731] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.584470] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.592259] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.600036] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.607782] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.615523] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.623304] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.631082] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.638831] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.646592] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.654334] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.662145] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.669884] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.677643] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.685383] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.693195] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.700928] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.708692] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.716473] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.724195] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.731979] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.739739] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.747519] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.755241] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.763034] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.770783] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.778567] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.786311] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.794050] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.801838] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.809613] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.817358] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.825097] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.832879] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.840657] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.848405] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.856175] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.863907] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.871711] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.879457] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.887217] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.894959] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.902768] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.910507] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.918266] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.926008] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.933810] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.941550] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.949316] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.957105] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.964818] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.972602] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.980365] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.988145] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 279.995867] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 280.003657] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 280.011407] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 280.019192] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 280.026937] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 280.034675] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 280.042458] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 280.050240] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 280.057995] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 280.065727] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 280.073512] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode GOTGCTL = 0x00010000 GOTGINT = 0x00000000 GAHBCFG = 0x00000023 GUSBCFG = 0x00001400 GRSTCTL = 0x80000000 GINTSTS = 0x04000020 GINTMSK = 0xd8000806 GRXSTSR = 0x00000000 GRXFSIZ = 0x00000400 GNPTXFSIZ = 0x04000400 GNPTXSTS = 0x00080400 GI2CCTL = 0x00000000 GPVNDCTL = 0x00000000 GGPIO = 0x00600000 GUID = 0x00004000 GSNPSID = 0x4f54330a GHWCFG1 = 0x00000000 GHWCFG2 = 0x228fe150 GHWCFG3 = 0x03b892e8 GHWCFG4 = 0xe3f00030 GLPMCFG = 0x00000000 GPWRDN = 0x00200010 GDFIFOCFG = 0x03b80400 ADPCTL = 0x00000000 HPTXFSIZ = 0x00000000 DPTXFSIZN(1) = 0x04000800 DPTXFSIZN(2) = 0x04000c00 DPTXFSIZN(3) = 0x04001000 DPTXFSIZN(4) = 0x04001400 DPTXFSIZN(5) = 0x04001800 DPTXFSIZN(6) = 0x04001c00 DPTXFSIZN(7) = 0x04002000 DPTXFSIZN(8) = 0x04002400 DPTXFSIZN(9) = 0x04000800 DPTXFSIZN(10) = 0x04000c00 DPTXFSIZN(11) = 0x04001000 DPTXFSIZN(12) = 0x04001400 DPTXFSIZN(13) = 0x04001800 DPTXFSIZN(14) = 0x04001c00 DPTXFSIZN(15) = 0x04002000 DCFG = 0x08100000 DCTL = 0x00000002 DSTS = 0x00000002 DIEPMSK = 0x00000000 DOEPMSK = 0x00000000 DAINT = 0x00000000 DAINTMSK = 0x00000000 DTKNQR1 = 0x00000000 DTKNQR2 = 0x00000000 DTKNQR3 = 0x0c100020 DTKNQR4 = 0x00000000 DVBUSDIS = 0x000017d7 DVBUSPULSE = 0x000005b8 DIEPCTL(0) = 0x00008000 DIEPCTL(1) = 0x00000000 DIEPCTL(2) = 0x00000000 DIEPCTL(3) = 0x00000000 DIEPCTL(4) = 0x00000000 DIEPCTL(5) = 0x00000000 DIEPCTL(6) = 0x00000000 DIEPCTL(7) = 0x00000000 DIEPCTL(8) = 0x00000000 DIEPCTL(9) = 0x00000000 DIEPCTL(10) = 0x00000000 DIEPCTL(11) = 0x00000000 DIEPCTL(12) = 0x00000000 DIEPCTL(13) = 0x00000000 DIEPCTL(14) = 0x00000000 DIEPCTL(15) = 0x00000000 DOEPCTL(0) = 0x00008000 DOEPCTL(1) = 0x00000000 DOEPCTL(2) = 0x00000000 DOEPCTL(3) = 0x00000000 DOEPCTL(4) = 0x00000000 DOEPCTL(5) = 0x00000000 DOEPCTL(6) = 0x00000000 DOEPCTL(7) = 0x00000000 DOEPCTL(8) = 0x00000000 DOEPCTL(9) = 0x00000000 DOEPCTL(10) = 0x00000000 DOEPCTL(11) = 0x00000000 DOEPCTL(12) = 0x00000000 DOEPCTL(13) = 0x00000000 DOEPCTL(14) = 0x00000000 DOEPCTL(15) = 0x00000000 DIEPINT(0) = 0x00000080 DIEPINT(1) = 0x00000080 DIEPINT(2) = 0x00000080 DIEPINT(3) = 0x00000080 DIEPINT(4) = 0x00000080 DIEPINT(5) = 0x00000080 DIEPINT(6) = 0x00000080 DIEPINT(7) = 0x00000080 DIEPINT(8) = 0x00000080 DIEPINT(9) = 0x00000080 DIEPINT(10) = 0x00000080 DIEPINT(11) = 0x00000080 DIEPINT(12) = 0x00000080 DIEPINT(13) = 0x00000080 DIEPINT(14) = 0x00000080 DIEPINT(15) = 0x00000080 DOEPINT(0) = 0x00000000 DOEPINT(1) = 0x00000000 DOEPINT(2) = 0x00000000 DOEPINT(3) = 0x00000000 DOEPINT(4) = 0x00000000 DOEPINT(5) = 0x00000000 DOEPINT(6) = 0x00000000 DOEPINT(7) = 0x00000000 DOEPINT(8) = 0x00000000 DOEPINT(9) = 0x00000000 DOEPINT(10) = 0x00000000 DOEPINT(11) = 0x00000000 DOEPINT(12) = 0x00000000 DOEPINT(13) = 0x00000000 DOEPINT(14) = 0x00000000 DOEPINT(15) = 0x00000000 DIEPTSIZ(0) = 0x00000000 DIEPTSIZ(1) = 0x00000000 DIEPTSIZ(2) = 0x00000000 DIEPTSIZ(3) = 0x00000000 DIEPTSIZ(4) = 0x00000000 DIEPTSIZ(5) = 0x00000000 DIEPTSIZ(6) = 0x00000000 DIEPTSIZ(7) = 0x00000000 DIEPTSIZ(8) = 0x00000000 DIEPTSIZ(9) = 0x00000000 DIEPTSIZ(10) = 0x00000000 DIEPTSIZ(11) = 0x00000000 DIEPTSIZ(12) = 0x00000000 DIEPTSIZ(13) = 0x00000000 DIEPTSIZ(14) = 0x00000000 DIEPTSIZ(15) = 0x00000000 DOEPTSIZ(0) = 0x00000000 DOEPTSIZ(1) = 0x00000000 DOEPTSIZ(2) = 0x00000000 DOEPTSIZ(3) = 0x00000000 DOEPTSIZ(4) = 0x00000000 DOEPTSIZ(5) = 0x00000000 DOEPTSIZ(6) = 0x00000000 DOEPTSIZ(7) = 0x00000000 DOEPTSIZ(8) = 0x00000000 DOEPTSIZ(9) = 0x00000000 DOEPTSIZ(10) = 0x00000000 DOEPTSIZ(11) = 0x00000000 DOEPTSIZ(12) = 0x00000000 DOEPTSIZ(13) = 0x00000000 DOEPTSIZ(14) = 0x00000000 DOEPTSIZ(15) = 0x00000000 DIEPDMA(0) = 0x79daaf9c DIEPDMA(1) = 0xc8ad1317 DIEPDMA(2) = 0xf56293e7 DIEPDMA(3) = 0x7e374f85 DIEPDMA(4) = 0xbe22b68d DIEPDMA(5) = 0xa60f065a DIEPDMA(6) = 0xbafafaf5 DIEPDMA(7) = 0x892900fb DIEPDMA(8) = 0xa2c3caca DIEPDMA(9) = 0x58d5ed04 DIEPDMA(10) = 0x58d5ed04 DIEPDMA(11) = 0x58d5ed04 DIEPDMA(12) = 0x58d5ed04 DIEPDMA(13) = 0x58d5ed04 DIEPDMA(14) = 0x58d5ed04 DIEPDMA(15) = 0x58d5ed04 DOEPDMA(0) = 0xa167db6c DOEPDMA(1) = 0x681b357d DOEPDMA(2) = 0x503148e2 DOEPDMA(3) = 0x9476575a DOEPDMA(4) = 0xb098e0de DOEPDMA(5) = 0xb8bc774f DOEPDMA(6) = 0x58d5ed04 DOEPDMA(7) = 0x8fbaf0d9 DOEPDMA(8) = 0xe7b6af62 DOEPDMA(9) = 0x22f87fc6 DOEPDMA(10) = 0x22f87fc6 DOEPDMA(11) = 0x22f87fc6 DOEPDMA(12) = 0x22f87fc6 DOEPDMA(13) = 0x22f87fc6 DOEPDMA(14) = 0x22f87fc6 DOEPDMA(15) = 0x22f87fc6 DTXFSTS(0) = 0x00000400 DTXFSTS(1) = 0x00000400 DTXFSTS(2) = 0x00000400 DTXFSTS(3) = 0x00000400 DTXFSTS(4) = 0x00000400 DTXFSTS(5) = 0x00000400 DTXFSTS(6) = 0x00000400 DTXFSTS(7) = 0x00000400 DTXFSTS(8) = 0x00000400 DTXFSTS(9) = 0x00000400 DTXFSTS(10) = 0x00000400 DTXFSTS(11) = 0x00000400 DTXFSTS(12) = 0x00000400 DTXFSTS(13) = 0x00000400 DTXFSTS(14) = 0x00000400 DTXFSTS(15) = 0x00000400 PCGCTL = 0x00000000 HCFG = 0x00100000 HFIR = 0x000017d7 HFNUM = 0x00000000 HPTXSTS = 0x00080400 HAINT = 0x00000000 HAINTMSK = 0x00000000 HFLBADDR = 0x00000000 HPRT0 = 0x00000000 HCCHAR(0) = 0x00000000 HCCHAR(1) = 0x00000000 HCCHAR(2) = 0x00000000 HCCHAR(3) = 0x00000000 HCCHAR(4) = 0x00000000 HCCHAR(5) = 0x00000000 HCCHAR(6) = 0x00000000 HCCHAR(7) = 0x00000000 HCCHAR(8) = 0x00000000 HCCHAR(9) = 0x00000000 HCCHAR(10) = 0x00000000 HCCHAR(11) = 0x00000000 HCCHAR(12) = 0x00000000 HCCHAR(13) = 0x00000000 HCCHAR(14) = 0x00000000 HCCHAR(15) = 0x00000000 HCSPLT(0) = 0x00000000 HCSPLT(1) = 0x00000000 HCSPLT(2) = 0x00000000 HCSPLT(3) = 0x00000000 HCSPLT(4) = 0x00000000 HCSPLT(5) = 0x00000000 HCSPLT(6) = 0x00000000 HCSPLT(7) = 0x00000000 HCSPLT(8) = 0x00000000 HCSPLT(9) = 0x00000000 HCSPLT(10) = 0x00000000 HCSPLT(11) = 0x00000000 HCSPLT(12) = 0x00000000 HCSPLT(13) = 0x00000000 HCSPLT(14) = 0x00000000 HCSPLT(15) = 0x00000000 HCINT(0) = 0x00000000 HCINT(1) = 0x00000000 HCINT(2) = 0x00000000 HCINT(3) = 0x00000000 HCINT(4) = 0x00000000 HCINT(5) = 0x00000000 HCINT(6) = 0x00000000 HCINT(7) = 0x00000000 HCINT(8) = 0x00000000 HCINT(9) = 0x00000000 HCINT(10) = 0x00000000 HCINT(11) = 0x00000000 HCINT(12) = 0x00000000 HCINT(13) = 0x00000000 HCINT(14) = 0x00000000 HCINT(15) = 0x00000000 HCINTMSK(0) = 0x00000000 HCINTMSK(1) = 0x00000000 HCINTMSK(2) = 0x00000000 HCINTMSK(3) = 0x00000000 HCINTMSK(4) = 0x00000000 HCINTMSK(5) = 0x00000000 HCINTMSK(6) = 0x00000000 HCINTMSK(7) = 0x00000000 HCINTMSK(8) = 0x00000000 HCINTMSK(9) = 0x00000000 HCINTMSK(10) = 0x00000000 HCINTMSK(11) = 0x00000000 HCINTMSK(12) = 0x00000000 HCINTMSK(13) = 0x00000000 HCINTMSK(14) = 0x00000000 HCINTMSK(15) = 0x00000000 HCTSIZ(0) = 0x00000000 HCTSIZ(1) = 0x00000000 HCTSIZ(2) = 0x00000000 HCTSIZ(3) = 0x00000000 HCTSIZ(4) = 0x00000000 HCTSIZ(5) = 0x00000000 HCTSIZ(6) = 0x00000000 HCTSIZ(7) = 0x00000000 HCTSIZ(8) = 0x00000000 HCTSIZ(9) = 0x00000000 HCTSIZ(10) = 0x00000000 HCTSIZ(11) = 0x00000000 HCTSIZ(12) = 0x00000000 HCTSIZ(13) = 0x00000000 HCTSIZ(14) = 0x00000000 HCTSIZ(15) = 0x00000000 HCDMA(0) = 0xa167db6c HCDMA(1) = 0x681b357d HCDMA(2) = 0x503148e2 HCDMA(3) = 0x9476575a HCDMA(4) = 0xb098e0de HCDMA(5) = 0xb8bc774f HCDMA(6) = 0x58d5ed04 HCDMA(7) = 0x8fbaf0d9 HCDMA(8) = 0xe7b6af62 HCDMA(9) = 0x22f87fc6 HCDMA(10) = 0x22f87fc6 HCDMA(11) = 0x22f87fc6 HCDMA(12) = 0x22f87fc6 HCDMA(13) = 0x22f87fc6 HCDMA(14) = 0x22f87fc6 HCDMA(15) = 0x22f87fc6 HCDMAB(0) = 0x22f87fc6 HCDMAB(1) = 0x22f87fc6 HCDMAB(2) = 0x22f87fc6 HCDMAB(3) = 0x22f87fc6 HCDMAB(4) = 0x22f87fc6 HCDMAB(5) = 0x22f87fc6 HCDMAB(6) = 0x22f87fc6 HCDMAB(7) = 0x22f87fc6 HCDMAB(8) = 0x22f87fc6 HCDMAB(9) = 0x22f87fc6 HCDMAB(10) = 0x22f87fc6 HCDMAB(11) = 0x22f87fc6 HCDMAB(12) = 0x22f87fc6 HCDMAB(13) = 0x22f87fc6 HCDMAB(14) = 0x22f87fc6 HCDMAB(15) = 0x22f87fc6 After: # cat /sys/kernel/debug/usb/49000000.usb-otg/regdump [ 296.213397] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.219841] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.227521] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.235242] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.243052] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.250800] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.258577] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.266340] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.274070] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.281869] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.289618] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.297394] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.305120] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.312909] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.320697] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.328439] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.336215] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.343938] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.351725] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.359503] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.367261] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.374993] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.382798] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.390545] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.398321] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.406046] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.413833] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.421619] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.429362] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.437137] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.444863] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.452651] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.460430] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.468186] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.475920] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.483721] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.491473] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.499249] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.507001] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.514739] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.522551] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.530293] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.538068] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.545794] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.553582] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.561369] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.569117] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.576888] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.584614] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.592403] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.600180] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.607931] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.615672] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.623481] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.631230] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.639010] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.646754] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.654494] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.662296] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.670055] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.677826] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.685554] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.693342] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.701119] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.708871] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.716659] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.724377] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.732166] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.739943] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.747697] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.755436] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.763237] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.770997] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.778769] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.786522] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.794261] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.802062] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.809815] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.817601] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.825319] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.833108] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.840885] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.848635] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.856411] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.864139] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.871933] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.879709] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.887466] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.895195] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.902999] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.910749] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.918535] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.926278] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.934016] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.941818] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.949568] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.957344] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.965069] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.972874] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.980633] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.988388] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 296.996161] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 297.003886] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 297.011676] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 297.019463] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 297.027206] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 297.034944] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 297.042747] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 297.050499] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 297.058276] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 297.066003] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 297.073800] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 297.081572] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 297.089324] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 297.097099] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 297.104826] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 297.112615] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 297.120403] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode [ 297.128145] dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode GOTGCTL = 0x000d0000 GOTGINT = 0x00000000 GAHBCFG = 0x00000023 GUSBCFG = 0x00001400 GRSTCTL = 0x80000000 GINTSTS = 0x04000020 GINTMSK = 0xd8000806 GRXSTSR = 0x00000000 GRXFSIZ = 0x00000400 GNPTXFSIZ = 0x04000400 GNPTXSTS = 0x00080400 GI2CCTL = 0x00000000 GPVNDCTL = 0x00000000 GGPIO = 0x00600000 GUID = 0x00004000 GSNPSID = 0x4f54330a GHWCFG1 = 0x00000000 GHWCFG2 = 0x228fe150 GHWCFG3 = 0x03b892e8 GHWCFG4 = 0xe3f00030 GLPMCFG = 0x00000000 GPWRDN = 0x00600010 GDFIFOCFG = 0x03b80400 ADPCTL = 0x00000000 HPTXFSIZ = 0x00000000 DPTXFSIZN(1) = 0x04000800 DPTXFSIZN(2) = 0x04000c00 DPTXFSIZN(3) = 0x04001000 DPTXFSIZN(4) = 0x04001400 DPTXFSIZN(5) = 0x04001800 DPTXFSIZN(6) = 0x04001c00 DPTXFSIZN(7) = 0x04002000 DPTXFSIZN(8) = 0x04002400 DPTXFSIZN(9) = 0x04000800 DPTXFSIZN(10) = 0x04000c00 DPTXFSIZN(11) = 0x04001000 DPTXFSIZN(12) = 0x04001400 DPTXFSIZN(13) = 0x04001800 DPTXFSIZN(14) = 0x04001c00 DPTXFSIZN(15) = 0x04002000 DCFG = 0x08100000 DCTL = 0x00000002 DSTS = 0x00000002 DIEPMSK = 0x00000000 DOEPMSK = 0x00000000 DAINT = 0x00000000 DAINTMSK = 0x00000000 DTKNQR1 = 0x00000000 DTKNQR2 = 0x00000000 DTKNQR3 = 0x0c100020 DTKNQR4 = 0x00000000 DVBUSDIS = 0x000017d7 DVBUSPULSE = 0x000005b8 DIEPCTL(0) = 0x00008000 DIEPCTL(1) = 0x00000000 DIEPCTL(2) = 0x00000000 DIEPCTL(3) = 0x00000000 DIEPCTL(4) = 0x00000000 DIEPCTL(5) = 0x00000000 DIEPCTL(6) = 0x00000000 DIEPCTL(7) = 0x00000000 DIEPCTL(8) = 0x00000000 DIEPCTL(9) = 0x00000000 DIEPCTL(10) = 0x00000000 DIEPCTL(11) = 0x00000000 DIEPCTL(12) = 0x00000000 DIEPCTL(13) = 0x00000000 DIEPCTL(14) = 0x00000000 DIEPCTL(15) = 0x00000000 DOEPCTL(0) = 0x00008000 DOEPCTL(1) = 0x00000000 DOEPCTL(2) = 0x00000000 DOEPCTL(3) = 0x00000000 DOEPCTL(4) = 0x00000000 DOEPCTL(5) = 0x00000000 DOEPCTL(6) = 0x00000000 DOEPCTL(7) = 0x00000000 DOEPCTL(8) = 0x00000000 DOEPCTL(9) = 0x00000000 DOEPCTL(10) = 0x00000000 DOEPCTL(11) = 0x00000000 DOEPCTL(12) = 0x00000000 DOEPCTL(13) = 0x00000000 DOEPCTL(14) = 0x00000000 DOEPCTL(15) = 0x00000000 DIEPINT(0) = 0x00000080 DIEPINT(1) = 0x00000080 DIEPINT(2) = 0x00000080 DIEPINT(3) = 0x00000080 DIEPINT(4) = 0x00000080 DIEPINT(5) = 0x00000080 DIEPINT(6) = 0x00000080 DIEPINT(7) = 0x00000080 DIEPINT(8) = 0x00000080 DIEPINT(9) = 0x00000080 DIEPINT(10) = 0x00000080 DIEPINT(11) = 0x00000080 DIEPINT(12) = 0x00000080 DIEPINT(13) = 0x00000080 DIEPINT(14) = 0x00000080 DIEPINT(15) = 0x00000080 DOEPINT(0) = 0x00000000 DOEPINT(1) = 0x00000000 DOEPINT(2) = 0x00000000 DOEPINT(3) = 0x00000000 DOEPINT(4) = 0x00000000 DOEPINT(5) = 0x00000000 DOEPINT(6) = 0x00000000 DOEPINT(7) = 0x00000000 DOEPINT(8) = 0x00000000 DOEPINT(9) = 0x00000000 DOEPINT(10) = 0x00000000 DOEPINT(11) = 0x00000000 DOEPINT(12) = 0x00000000 DOEPINT(13) = 0x00000000 DOEPINT(14) = 0x00000000 DOEPINT(15) = 0x00000000 DIEPTSIZ(0) = 0x00000000 DIEPTSIZ(1) = 0x00000000 DIEPTSIZ(2) = 0x00000000 DIEPTSIZ(3) = 0x00000000 DIEPTSIZ(4) = 0x00000000 DIEPTSIZ(5) = 0x00000000 DIEPTSIZ(6) = 0x00000000 DIEPTSIZ(7) = 0x00000000 DIEPTSIZ(8) = 0x00000000 DIEPTSIZ(9) = 0x00000000 DIEPTSIZ(10) = 0x00000000 DIEPTSIZ(11) = 0x00000000 DIEPTSIZ(12) = 0x00000000 DIEPTSIZ(13) = 0x00000000 DIEPTSIZ(14) = 0x00000000 DIEPTSIZ(15) = 0x00000000 DOEPTSIZ(0) = 0x00000000 DOEPTSIZ(1) = 0x00000000 DOEPTSIZ(2) = 0x00000000 DOEPTSIZ(3) = 0x00000000 DOEPTSIZ(4) = 0x00000000 DOEPTSIZ(5) = 0x00000000 DOEPTSIZ(6) = 0x00000000 DOEPTSIZ(7) = 0x00000000 DOEPTSIZ(8) = 0x00000000 DOEPTSIZ(9) = 0x00000000 DOEPTSIZ(10) = 0x00000000 DOEPTSIZ(11) = 0x00000000 DOEPTSIZ(12) = 0x00000000 DOEPTSIZ(13) = 0x00000000 DOEPTSIZ(14) = 0x00000000 DOEPTSIZ(15) = 0x00000000 DIEPDMA(0) = 0x79daaf9c DIEPDMA(1) = 0xc8ad1317 DIEPDMA(2) = 0xf56293e7 DIEPDMA(3) = 0x7e374f85 DIEPDMA(4) = 0xbe22b68d DIEPDMA(5) = 0xa60f065a DIEPDMA(6) = 0xbafafaf5 DIEPDMA(7) = 0x892900fb DIEPDMA(8) = 0xa2c3caca DIEPDMA(9) = 0x58d5ed04 DIEPDMA(10) = 0x58d5ed04 DIEPDMA(11) = 0x58d5ed04 DIEPDMA(12) = 0x58d5ed04 DIEPDMA(13) = 0x58d5ed04 DIEPDMA(14) = 0x58d5ed04 DIEPDMA(15) = 0x58d5ed04 DOEPDMA(0) = 0xa167db6c DOEPDMA(1) = 0x681b357d DOEPDMA(2) = 0x503148e2 DOEPDMA(3) = 0x9476575a DOEPDMA(4) = 0xb098e0de DOEPDMA(5) = 0xb8bc774f DOEPDMA(6) = 0x58d5ed04 DOEPDMA(7) = 0x8fbaf0d9 DOEPDMA(8) = 0xe7b6af62 DOEPDMA(9) = 0x22f87fc6 DOEPDMA(10) = 0x22f87fc6 DOEPDMA(11) = 0x22f87fc6 DOEPDMA(12) = 0x22f87fc6 DOEPDMA(13) = 0x22f87fc6 DOEPDMA(14) = 0x22f87fc6 DOEPDMA(15) = 0x22f87fc6 DTXFSTS(0) = 0x00000400 DTXFSTS(1) = 0x00000400 DTXFSTS(2) = 0x00000400 DTXFSTS(3) = 0x00000400 DTXFSTS(4) = 0x00000400 DTXFSTS(5) = 0x00000400 DTXFSTS(6) = 0x00000400 DTXFSTS(7) = 0x00000400 DTXFSTS(8) = 0x00000400 DTXFSTS(9) = 0x00000400 DTXFSTS(10) = 0x00000400 DTXFSTS(11) = 0x00000400 DTXFSTS(12) = 0x00000400 DTXFSTS(13) = 0x00000400 DTXFSTS(14) = 0x00000400 DTXFSTS(15) = 0x00000400 PCGCTL = 0x00000000 HCFG = 0x00100000 HFIR = 0x000017d7 HFNUM = 0x00000000 HPTXSTS = 0x00080400 HAINT = 0x00000000 HAINTMSK = 0x00000000 HFLBADDR = 0x00000000 HPRT0 = 0x00000000 HCCHAR(0) = 0x00000000 HCCHAR(1) = 0x00000000 HCCHAR(2) = 0x00000000 HCCHAR(3) = 0x00000000 HCCHAR(4) = 0x00000000 HCCHAR(5) = 0x00000000 HCCHAR(6) = 0x00000000 HCCHAR(7) = 0x00000000 HCCHAR(8) = 0x00000000 HCCHAR(9) = 0x00000000 HCCHAR(10) = 0x00000000 HCCHAR(11) = 0x00000000 HCCHAR(12) = 0x00000000 HCCHAR(13) = 0x00000000 HCCHAR(14) = 0x00000000 HCCHAR(15) = 0x00000000 HCSPLT(0) = 0x00000000 HCSPLT(1) = 0x00000000 HCSPLT(2) = 0x00000000 HCSPLT(3) = 0x00000000 HCSPLT(4) = 0x00000000 HCSPLT(5) = 0x00000000 HCSPLT(6) = 0x00000000 HCSPLT(7) = 0x00000000 HCSPLT(8) = 0x00000000 HCSPLT(9) = 0x00000000 HCSPLT(10) = 0x00000000 HCSPLT(11) = 0x00000000 HCSPLT(12) = 0x00000000 HCSPLT(13) = 0x00000000 HCSPLT(14) = 0x00000000 HCSPLT(15) = 0x00000000 HCINT(0) = 0x00000000 HCINT(1) = 0x00000000 HCINT(2) = 0x00000000 HCINT(3) = 0x00000000 HCINT(4) = 0x00000000 HCINT(5) = 0x00000000 HCINT(6) = 0x00000000 HCINT(7) = 0x00000000 HCINT(8) = 0x00000000 HCINT(9) = 0x00000000 HCINT(10) = 0x00000000 HCINT(11) = 0x00000000 HCINT(12) = 0x00000000 HCINT(13) = 0x00000000 HCINT(14) = 0x00000000 HCINT(15) = 0x00000000 HCINTMSK(0) = 0x00000000 HCINTMSK(1) = 0x00000000 HCINTMSK(2) = 0x00000000 HCINTMSK(3) = 0x00000000 HCINTMSK(4) = 0x00000000 HCINTMSK(5) = 0x00000000 HCINTMSK(6) = 0x00000000 HCINTMSK(7) = 0x00000000 HCINTMSK(8) = 0x00000000 HCINTMSK(9) = 0x00000000 HCINTMSK(10) = 0x00000000 HCINTMSK(11) = 0x00000000 HCINTMSK(12) = 0x00000000 HCINTMSK(13) = 0x00000000 HCINTMSK(14) = 0x00000000 HCINTMSK(15) = 0x00000000 HCTSIZ(0) = 0x00000000 HCTSIZ(1) = 0x00000000 HCTSIZ(2) = 0x00000000 HCTSIZ(3) = 0x00000000 HCTSIZ(4) = 0x00000000 HCTSIZ(5) = 0x00000000 HCTSIZ(6) = 0x00000000 HCTSIZ(7) = 0x00000000 HCTSIZ(8) = 0x00000000 HCTSIZ(9) = 0x00000000 HCTSIZ(10) = 0x00000000 HCTSIZ(11) = 0x00000000 HCTSIZ(12) = 0x00000000 HCTSIZ(13) = 0x00000000 HCTSIZ(14) = 0x00000000 HCTSIZ(15) = 0x00000000 HCDMA(0) = 0xa167db6c HCDMA(1) = 0x681b357d HCDMA(2) = 0x503148e2 HCDMA(3) = 0x9476575a HCDMA(4) = 0xb098e0de HCDMA(5) = 0xb8bc774f HCDMA(6) = 0x58d5ed04 HCDMA(7) = 0x8fbaf0d9 HCDMA(8) = 0xe7b6af62 HCDMA(9) = 0x22f87fc6 HCDMA(10) = 0x22f87fc6 HCDMA(11) = 0x22f87fc6 HCDMA(12) = 0x22f87fc6 HCDMA(13) = 0x22f87fc6 HCDMA(14) = 0x22f87fc6 HCDMA(15) = 0x22f87fc6 HCDMAB(0) = 0x22f87fc6 HCDMAB(1) = 0x22f87fc6 HCDMAB(2) = 0x22f87fc6 HCDMAB(3) = 0x22f87fc6 HCDMAB(4) = 0x22f87fc6 HCDMAB(5) = 0x22f87fc6 HCDMAB(6) = 0x22f87fc6 HCDMAB(7) = 0x22f87fc6 HCDMAB(8) = 0x22f87fc6 HCDMAB(9) = 0x22f87fc6 HCDMAB(10) = 0x22f87fc6 HCDMAB(11) = 0x22f87fc6 HCDMAB(12) = 0x22f87fc6 HCDMAB(13) = 0x22f87fc6 HCDMAB(14) = 0x22f87fc6 HCDMAB(15) = 0x22f87fc6
Hi, On 4/14/2020 4:18 PM, Marek Vasut wrote: > On 4/14/20 9:14 AM, Minas Harutyunyan wrote: > >> 2. debug log > > What kind of debug log ? > Drivers debug log starting from dwc2 loading and connector connecting to device, where issue seen. Thanks, Minas
On 4/15/20 10:37 AM, Minas Harutyunyan wrote: > Hi, > > On 4/14/2020 4:18 PM, Marek Vasut wrote: >> On 4/14/20 9:14 AM, Minas Harutyunyan wrote: > >> >>> 2. debug log >> >> What kind of debug log ? >> > Drivers debug log starting from dwc2 loading and connector connecting to > device, where issue seen. How do I enable the one you need ?
Hi, On 4/15/2020 6:55 PM, Marek Vasut wrote: > On 4/15/20 10:37 AM, Minas Harutyunyan wrote: >> Hi, >> >> On 4/14/2020 4:18 PM, Marek Vasut wrote: >>> On 4/14/20 9:14 AM, Minas Harutyunyan wrote: >> >>> >>>> 2. debug log >>> >>> What kind of debug log ? >>> >> Drivers debug log starting from dwc2 loading and connector connecting to >> device, where issue seen. > > How do I enable the one you need ? > To enable debug prints from dwc2 use 'make menuconfig': Symbol: USB_DWC2_DEBUG [=y] Type : bool Prompt: Enable Debugging Messages Location: -> Device Drivers -> USB support (USB_SUPPORT [=y]) (2) -> DesignWare USB2 DRD Core Support (USB_DWC2 [=m]) Defined at drivers/usb/dwc2/Kconfig:66 Depends on: USB_SUPPORT [=y] && USB_DWC2 [=m] To get log use 'dmesg' command. Thanks, Minas
On 4/15/20 5:10 PM, Minas Harutyunyan wrote: > Hi, Hi, > On 4/15/2020 6:55 PM, Marek Vasut wrote: >> On 4/15/20 10:37 AM, Minas Harutyunyan wrote: >>> Hi, >>> >>> On 4/14/2020 4:18 PM, Marek Vasut wrote: >>>> On 4/14/20 9:14 AM, Minas Harutyunyan wrote: >>> >>>> >>>>> 2. debug log >>>> >>>> What kind of debug log ? >>>> >>> Drivers debug log starting from dwc2 loading and connector connecting to >>> device, where issue seen. >> >> How do I enable the one you need ? >> > To enable debug prints from dwc2 use 'make menuconfig': > > Symbol: USB_DWC2_DEBUG [=y] Oh, this one, OK. There you go. Note that there is no further output when I plug in the USB microB cable from a PC. dwc2 49000000.usb-otg: supply vusb_d not found, using dummy regulator dwc2 49000000.usb-otg: supply vusb_a not found, using dummy regulator dwc2 49000000.usb-otg: EPs: 9, dedicated fifos, 952 entries in SPRAM dwc2 49000000.usb-otg: bound driver zero dwc2 49000000.usb-otg: DCFG=0x08100000, DCTL=0x00000002, DIEPMSK=00000000 dwc2 49000000.usb-otg: GAHBCFG=0x00000000, GHWCFG1=0x00000000 dwc2 49000000.usb-otg: GRXFSIZ=0x00000400, GNPTXFSIZ=0x04000400 dwc2 49000000.usb-otg: DPTx[1] FSize=1024, StAddr=0x00000800 dwc2 49000000.usb-otg: DPTx[2] FSize=1024, StAddr=0x00000c00 dwc2 49000000.usb-otg: DPTx[3] FSize=1024, StAddr=0x00001000 dwc2 49000000.usb-otg: DPTx[4] FSize=1024, StAddr=0x00001400 dwc2 49000000.usb-otg: DPTx[5] FSize=1024, StAddr=0x00001800 dwc2 49000000.usb-otg: DPTx[6] FSize=1024, StAddr=0x00001c00 dwc2 49000000.usb-otg: DPTx[7] FSize=1024, StAddr=0x00002000 dwc2 49000000.usb-otg: DPTx[8] FSize=1024, StAddr=0x00002400 dwc2 49000000.usb-otg: ep0-in: EPCTL=0x00008800, SIZ=0x00000000, DMA=0x79daaf9c dwc2 49000000.usb-otg: ep0-out: EPCTL=0x00008000, SIZ=0x00000000, DMA=0xa167db6c dwc2 49000000.usb-otg: ep1-in: EPCTL=0x00001000, SIZ=0x00000000, DMA=0x88ad1397 dwc2 49000000.usb-otg: ep1-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x6c5b357c dwc2 49000000.usb-otg: ep2-in: EPCTL=0x00001800, SIZ=0x00000000, DMA=0xb4639367 dwc2 49000000.usb-otg: ep2-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x503148e2 dwc2 49000000.usb-otg: ep3-in: EPCTL=0x00002000, SIZ=0x00000000, DMA=0x7e275f85 dwc2 49000000.usb-otg: ep3-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x9474575a dwc2 49000000.usb-otg: ep4-in: EPCTL=0x00002800, SIZ=0x00000000, DMA=0xbe22b68d dwc2 49000000.usb-otg: ep4-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0xb89ae0de dwc2 49000000.usb-otg: ep5-in: EPCTL=0x00003000, SIZ=0x00000000, DMA=0xa607065a dwc2 49000000.usb-otg: ep5-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0xa8bc774f dwc2 49000000.usb-otg: ep6-in: EPCTL=0x00003800, SIZ=0x00000000, DMA=0xbabafaf5 dwc2 49000000.usb-otg: ep6-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x58ddeb04 dwc2 49000000.usb-otg: ep7-in: EPCTL=0x00004000, SIZ=0x00000000, DMA=0x8b6b00f3 dwc2 49000000.usb-otg: ep7-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x87baf0d9 dwc2 49000000.usb-otg: ep8-in: EPCTL=0x00004800, SIZ=0x00000000, DMA=0xa2c3caca dwc2 49000000.usb-otg: ep8-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x67b6afe2 dwc2 49000000.usb-otg: DVBUSDIS=0x000017d7, DVBUSPULSE=000005b8 dwc2 49000000.usb-otg: DWC OTG Controller dwc2 49000000.usb-otg: new USB bus registered, assigned bus number 1 dwc2 49000000.usb-otg: irq 45, io mem 0x49000000 dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode
Hi, On 4/16/2020 1:46 PM, Marek Vasut wrote: > On 4/15/20 5:10 PM, Minas Harutyunyan wrote: >> Hi, > > Hi, > >> On 4/15/2020 6:55 PM, Marek Vasut wrote: >>> On 4/15/20 10:37 AM, Minas Harutyunyan wrote: >>>> Hi, >>>> >>>> On 4/14/2020 4:18 PM, Marek Vasut wrote: >>>>> On 4/14/20 9:14 AM, Minas Harutyunyan wrote: >>>> >>>>> >>>>>> 2. debug log >>>>> >>>>> What kind of debug log ? >>>>> >>>> Drivers debug log starting from dwc2 loading and connector connecting to >>>> device, where issue seen. >>> >>> How do I enable the one you need ? >>> >> To enable debug prints from dwc2 use 'make menuconfig': >> >> Symbol: USB_DWC2_DEBUG [=y] > > Oh, this one, OK. There you go. > > Note that there is no further output when I plug in the USB microB cable > from a PC. > 1. Are you sure that you provided full debug log for dwc2? Actually first debug prints of dwc2 should be: [72891.088917] dwc2 dwc2.1.auto: mapped PA ef100000 to VA 00000000ca45f000 [72891.088924] dwc2 dwc2.1.auto: registering common handler for irq16 [72891.088963] dwc2 dwc2.1.auto: Core Release: 4.00a (snpsid=4f54400a) [72891.088974] dwc2 dwc2.1.auto: Forcing mode to host [72891.100285] dwc2 dwc2.1.auto: Forcing mode to device [72891.112307] dwc2 dwc2.1.auto: Clearing force mode bits [72891.215275] dwc2 dwc2.1.auto: NonPeriodic TXFIFO size: 1024 [72891.215278] dwc2 dwc2.1.auto: RXFIFO size: 2048 ... 2. Does your driver built for 'dual role device' or 'device only'? 3. First observation from register dumps: core in SOFT disconnect state, which can be reason of observed issue. Could you please update your patch and add only core_connect function call: + dwc2_hsotg_core_connect(hsotg); + return 0; error4: Or instead of patch, if you have any utility in system which will allow from command line clear soft disconnect bit from DCTL register? Offset of DCTL register is 0x804. SoftDiscon bit number is 1. Clear this bit and then plug cable. Unfortunately, currently I'm working from home and can't remotely connect/disconnect cable in lab to try to reproduce observed by you issue. Thanks, Minas
On 4/16/20 3:37 PM, Minas Harutyunyan wrote: > Hi, Hi, [...] >>>>>>> 2. debug log >>>>>> >>>>>> What kind of debug log ? >>>>>> >>>>> Drivers debug log starting from dwc2 loading and connector connecting to >>>>> device, where issue seen. >>>> >>>> How do I enable the one you need ? >>>> >>> To enable debug prints from dwc2 use 'make menuconfig': >>> >>> Symbol: USB_DWC2_DEBUG [=y] >> >> Oh, this one, OK. There you go. >> >> Note that there is no further output when I plug in the USB microB cable >> from a PC. >> > 1. Are you sure that you provided full debug log for dwc2? Actually > first debug prints of dwc2 should be: > > [72891.088917] dwc2 dwc2.1.auto: mapped PA ef100000 to VA 00000000ca45f000 > [72891.088924] dwc2 dwc2.1.auto: registering common handler for irq16 > [72891.088963] dwc2 dwc2.1.auto: Core Release: 4.00a (snpsid=4f54400a) > [72891.088974] dwc2 dwc2.1.auto: Forcing mode to host > [72891.100285] dwc2 dwc2.1.auto: Forcing mode to device > [72891.112307] dwc2 dwc2.1.auto: Clearing force mode bits > [72891.215275] dwc2 dwc2.1.auto: NonPeriodic TXFIFO size: 1024 > [72891.215278] dwc2 dwc2.1.auto: RXFIFO size: 2048 > ... So what you really want from me is to boot the kernel with loglevel >= 7 , right ? See at the end. > 2. Does your driver built for 'dual role device' or 'device only'? Dual-role > 3. First observation from register dumps: core in SOFT disconnect state, > which can be reason of observed issue. Could you please update your > patch and add only core_connect function call: > > + dwc2_hsotg_core_connect(hsotg); Does not help. > return 0; > > error4: > > Or instead of patch, if you have any utility in system which will allow > from command line clear soft disconnect bit from DCTL register? Offset > of DCTL register is 0x804. SoftDiscon bit number is 1. Clear this bit > and then plug cable. Clearing that bit with devmem allows the host PC to detect some high-speed device got connected, but that's it, it does not detect it as a gadget and no communication really happens. > Unfortunately, currently I'm working from home and can't remotely > connect/disconnect cable in lab to try to reproduce observed by you issue. Maybe you should consider using something like this in the lab: https://www.ti.com/product/TS3USB30 [...] dwc2 49000000.usb-otg: mapped PA 49000000 to VA 473352f1 dwc2 49000000.usb-otg: mapped PA 49000000 to VA 923761cb dwc2 49000000.usb-otg: supply vusb_d not found, using dummy regulator dwc2 49000000.usb-otg: supply vusb_a not found, using dummy regulator dwc2 49000000.usb-otg: registering common handler for irq48 dwc2 49000000.usb-otg: dwc2_core_reset() dwc2 49000000.usb-otg: Core Release: 3.30a (snpsid=4f54330a) dwc2 49000000.usb-otg: Forcing mode to host dwc2 49000000.usb-otg: Waiting for host mode dwc2 49000000.usb-otg: Host mode set dwc2 49000000.usb-otg: Forcing mode to device dwc2 49000000.usb-otg: Waiting for device mode dwc2 49000000.usb-otg: Device mode set dwc2 49000000.usb-otg: Clearing force mode bits dwc2 49000000.usb-otg: NonPeriodic TXFIFO size: 32 dwc2 49000000.usb-otg: RXFIFO size: 256 dwc2 49000000.usb-otg: EPs: 9, dedicated fifos, 952 entries in SPRAM dwc2 49000000.usb-otg: bound driver zero dwc2 49000000.usb-otg: dwc2_hsotg_pullup: is_on: 1 op_state: 0 dwc2 49000000.usb-otg: DCFG=0x08100000, DCTL=0x00000002, DIEPMSK=00000000 dwc2 49000000.usb-otg: GAHBCFG=0x00000000, GHWCFG1=0x00000000 dwc2 49000000.usb-otg: GRXFSIZ=0x00000400, GNPTXFSIZ=0x04000400 dwc2 49000000.usb-otg: DPTx[1] FSize=1024, StAddr=0x00000800 dwc2 49000000.usb-otg: DPTx[2] FSize=1024, StAddr=0x00000c00 dwc2 49000000.usb-otg: DPTx[3] FSize=1024, StAddr=0x00001000 dwc2 49000000.usb-otg: DPTx[4] FSize=1024, StAddr=0x00001400 dwc2 49000000.usb-otg: DPTx[5] FSize=1024, StAddr=0x00001800 dwc2 49000000.usb-otg: DPTx[6] FSize=1024, StAddr=0x00001c00 dwc2 49000000.usb-otg: DPTx[7] FSize=1024, StAddr=0x00002000 dwc2 49000000.usb-otg: DPTx[8] FSize=1024, StAddr=0x00002400 dwc2 49000000.usb-otg: ep0-in: EPCTL=0x00008800, SIZ=0x00000000, DMA=0x79daaf9d dwc2 49000000.usb-otg: ep0-out: EPCTL=0x00008000, SIZ=0x00000000, DMA=0xa167db6c dwc2 49000000.usb-otg: ep1-in: EPCTL=0x00001000, SIZ=0x00000000, DMA=0xccad1197 dwc2 49000000.usb-otg: ep1-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x6c5b347c dwc2 49000000.usb-otg: ep2-in: EPCTL=0x00001800, SIZ=0x00000000, DMA=0xf57293e7 dwc2 49000000.usb-otg: ep2-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x503148ea dwc2 49000000.usb-otg: ep3-in: EPCTL=0x00002000, SIZ=0x00000000, DMA=0x3c274fc5 dwc2 49000000.usb-otg: ep3-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x9436577a dwc2 49000000.usb-otg: ep4-in: EPCTL=0x00002800, SIZ=0x00000000, DMA=0xbe22b68d dwc2 49000000.usb-otg: ep4-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0xb09ae0de dwc2 49000000.usb-otg: ep5-in: EPCTL=0x00003000, SIZ=0x00000000, DMA=0xa607065a dwc2 49000000.usb-otg: ep5-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0xa8b8774f dwc2 49000000.usb-otg: ep6-in: EPCTL=0x00003800, SIZ=0x00000000, DMA=0xbabafad5 dwc2 49000000.usb-otg: ep6-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x58d5e904 dwc2 49000000.usb-otg: ep7-in: EPCTL=0x00004000, SIZ=0x00000000, DMA=0x0b6900f3 dwc2 49000000.usb-otg: ep7-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0x8fbae0d9 dwc2 49000000.usb-otg: ep8-in: EPCTL=0x00004800, SIZ=0x00000000, DMA=0xa2c39aca dwc2 49000000.usb-otg: ep8-out: EPCTL=0x00000000, SIZ=0x00000000, DMA=0xe7b6ab62 dwc2 49000000.usb-otg: DVBUSDIS=0x000017d7, DVBUSPULSE=000005b8 dwc2 49000000.usb-otg: DWC OTG HCD INIT dwc2 49000000.usb-otg: hcfg=00100000 dwc2 49000000.usb-otg: dwc2_core_init(370c19f5) dwc2 49000000.usb-otg: HS UTMI+ PHY selected dwc2 49000000.usb-otg: dwc2_core_reset() dwc2 49000000.usb-otg: Internal DMA Mode dwc2 49000000.usb-otg: Device Mode dwc2 49000000.usb-otg: DWC OTG Controller dwc2 49000000.usb-otg: new USB bus registered, assigned bus number 1 dwc2 49000000.usb-otg: irq 48, io mem 0x49000000 dwc2 49000000.usb-otg: DWC OTG HCD START dwc2 49000000.usb-otg: DWC OTG HCD EP RESET: bEndpointAddress=0x81 dwc2 49000000.usb-otg: GetHubDescriptor dwc2 49000000.usb-otg: GetHubStatus dwc2 49000000.usb-otg: SetPortFeature dwc2 49000000.usb-otg: dwc2 49000000.usb-otg: ************************************************************ dwc2 49000000.usb-otg: HCD State: dwc2 49000000.usb-otg: Num channels: 16 dwc2 49000000.usb-otg: Channel 0: dwc2 49000000.usb-otg: dev_addr: 0, ep_num: 0, ep_is_in: 0 dwc2 49000000.usb-otg: speed: 0 dwc2 49000000.usb-otg: ep_type: 0 dwc2 49000000.usb-otg: max_packet: 0 dwc2 49000000.usb-otg: data_pid_start: 0 dwc2 49000000.usb-otg: multi_count: 0 dwc2 49000000.usb-otg: xfer_started: 0 dwc2 49000000.usb-otg: xfer_buf: beb5cc16 dwc2 49000000.usb-otg: xfer_dma: 00000000 dwc2 49000000.usb-otg: xfer_len: 0 dwc2 49000000.usb-otg: xfer_count: 0 dwc2 49000000.usb-otg: halt_on_queue: 0 dwc2 49000000.usb-otg: halt_pending: 0 dwc2 49000000.usb-otg: halt_status: 0 dwc2 49000000.usb-otg: do_split: 0 dwc2 49000000.usb-otg: complete_split: 0 dwc2 49000000.usb-otg: hub_addr: 0 dwc2 49000000.usb-otg: hub_port: 0 dwc2 49000000.usb-otg: xact_pos: 0 dwc2 49000000.usb-otg: requests: 0 dwc2 49000000.usb-otg: qh: beb5cc16 dwc2 49000000.usb-otg: Channel 1: dwc2 49000000.usb-otg: dev_addr: 0, ep_num: 0, ep_is_in: 0 dwc2 49000000.usb-otg: speed: 0 dwc2 49000000.usb-otg: ep_type: 0 dwc2 49000000.usb-otg: max_packet: 0 dwc2 49000000.usb-otg: data_pid_start: 0 dwc2 49000000.usb-otg: multi_count: 0 dwc2 49000000.usb-otg: xfer_started: 0 dwc2 49000000.usb-otg: xfer_buf: beb5cc16 dwc2 49000000.usb-otg: xfer_dma: 00000000 dwc2 49000000.usb-otg: xfer_len: 0 dwc2 49000000.usb-otg: xfer_count: 0 dwc2 49000000.usb-otg: halt_on_queue: 0 dwc2 49000000.usb-otg: halt_pending: 0 dwc2 49000000.usb-otg: halt_status: 0 dwc2 49000000.usb-otg: do_split: 0 dwc2 49000000.usb-otg: complete_split: 0 dwc2 49000000.usb-otg: hub_addr: 0 dwc2 49000000.usb-otg: hub_port: 0 dwc2 49000000.usb-otg: xact_pos: 0 dwc2 49000000.usb-otg: requests: 0 dwc2 49000000.usb-otg: qh: beb5cc16 dwc2 49000000.usb-otg: Channel 2: dwc2 49000000.usb-otg: dev_addr: 0, ep_num: 0, ep_is_in: 0 dwc2 49000000.usb-otg: speed: 0 dwc2 49000000.usb-otg: ep_type: 0 dwc2 49000000.usb-otg: max_packet: 0 dwc2 49000000.usb-otg: data_pid_start: 0 dwc2 49000000.usb-otg: multi_count: 0 dwc2 49000000.usb-otg: xfer_started: 0 dwc2 49000000.usb-otg: xfer_buf: beb5cc16 dwc2 49000000.usb-otg: xfer_dma: 00000000 dwc2 49000000.usb-otg: xfer_len: 0 dwc2 49000000.usb-otg: xfer_count: 0 dwc2 49000000.usb-otg: halt_on_queue: 0 dwc2 49000000.usb-otg: halt_pending: 0 dwc2 49000000.usb-otg: halt_status: 0 dwc2 49000000.usb-otg: do_split: 0 dwc2 49000000.usb-otg: complete_split: 0 dwc2 49000000.usb-otg: hub_addr: 0 dwc2 49000000.usb-otg: hub_port: 0 dwc2 49000000.usb-otg: xact_pos: 0 dwc2 49000000.usb-otg: requests: 0 dwc2 49000000.usb-otg: qh: beb5cc16 dwc2 49000000.usb-otg: Channel 3: dwc2 49000000.usb-otg: dev_addr: 0, ep_num: 0, ep_is_in: 0 dwc2 49000000.usb-otg: speed: 0 dwc2 49000000.usb-otg: ep_type: 0 dwc2 49000000.usb-otg: max_packet: 0 dwc2 49000000.usb-otg: data_pid_start: 0 dwc2 49000000.usb-otg: multi_count: 0 dwc2 49000000.usb-otg: xfer_started: 0 dwc2 49000000.usb-otg: xfer_buf: beb5cc16 dwc2 49000000.usb-otg: xfer_dma: 00000000 dwc2 49000000.usb-otg: xfer_len: 0 dwc2 49000000.usb-otg: xfer_count: 0 dwc2 49000000.usb-otg: halt_on_queue: 0 dwc2 49000000.usb-otg: halt_pending: 0 dwc2 49000000.usb-otg: halt_status: 0 dwc2 49000000.usb-otg: do_split: 0 dwc2 49000000.usb-otg: complete_split: 0 dwc2 49000000.usb-otg: hub_addr: 0 dwc2 49000000.usb-otg: hub_port: 0 dwc2 49000000.usb-otg: xact_pos: 0 dwc2 49000000.usb-otg: requests: 0 dwc2 49000000.usb-otg: qh: beb5cc16 dwc2 49000000.usb-otg: Channel 4: dwc2 49000000.usb-otg: dev_addr: 0, ep_num: 0, ep_is_in: 0 dwc2 49000000.usb-otg: speed: 0 dwc2 49000000.usb-otg: ep_type: 0 dwc2 49000000.usb-otg: max_packet: 0 dwc2 49000000.usb-otg: data_pid_start: 0 dwc2 49000000.usb-otg: multi_count: 0 dwc2 49000000.usb-otg: xfer_started: 0 dwc2 49000000.usb-otg: xfer_buf: beb5cc16 dwc2 49000000.usb-otg: xfer_dma: 00000000 dwc2 49000000.usb-otg: xfer_len: 0 dwc2 49000000.usb-otg: xfer_count: 0 dwc2 49000000.usb-otg: halt_on_queue: 0 dwc2 49000000.usb-otg: halt_pending: 0 dwc2 49000000.usb-otg: halt_status: 0 dwc2 49000000.usb-otg: do_split: 0 dwc2 49000000.usb-otg: complete_split: 0 dwc2 49000000.usb-otg: hub_addr: 0 dwc2 49000000.usb-otg: hub_port: 0 dwc2 49000000.usb-otg: xact_pos: 0 dwc2 49000000.usb-otg: requests: 0 dwc2 49000000.usb-otg: qh: beb5cc16 dwc2 49000000.usb-otg: Channel 5: dwc2 49000000.usb-otg: dev_addr: 0, ep_num: 0, ep_is_in: 0 dwc2 49000000.usb-otg: speed: 0 dwc2 49000000.usb-otg: ep_type: 0 dwc2 49000000.usb-otg: max_packet: 0 dwc2 49000000.usb-otg: data_pid_start: 0 dwc2 49000000.usb-otg: multi_count: 0 dwc2 49000000.usb-otg: xfer_started: 0 dwc2 49000000.usb-otg: xfer_buf: beb5cc16 dwc2 49000000.usb-otg: xfer_dma: 00000000 dwc2 49000000.usb-otg: xfer_len: 0 dwc2 49000000.usb-otg: xfer_count: 0 dwc2 49000000.usb-otg: halt_on_queue: 0 dwc2 49000000.usb-otg: halt_pending: 0 dwc2 49000000.usb-otg: halt_status: 0 dwc2 49000000.usb-otg: do_split: 0 dwc2 49000000.usb-otg: complete_split: 0 dwc2 49000000.usb-otg: hub_addr: 0 dwc2 49000000.usb-otg: hub_port: 0 dwc2 49000000.usb-otg: xact_pos: 0 dwc2 49000000.usb-otg: requests: 0 dwc2 49000000.usb-otg: qh: beb5cc16 dwc2 49000000.usb-otg: Channel 6: dwc2 49000000.usb-otg: dev_addr: 0, ep_num: 0, ep_is_in: 0 dwc2 49000000.usb-otg: speed: 0 dwc2 49000000.usb-otg: ep_type: 0 dwc2 49000000.usb-otg: max_packet: 0 dwc2 49000000.usb-otg: data_pid_start: 0 dwc2 49000000.usb-otg: multi_count: 0 dwc2 49000000.usb-otg: xfer_started: 0 dwc2 49000000.usb-otg: xfer_buf: beb5cc16 dwc2 49000000.usb-otg: xfer_dma: 00000000 dwc2 49000000.usb-otg: xfer_len: 0 dwc2 49000000.usb-otg: xfer_count: 0 dwc2 49000000.usb-otg: halt_on_queue: 0 dwc2 49000000.usb-otg: halt_pending: 0 dwc2 49000000.usb-otg: halt_status: 0 dwc2 49000000.usb-otg: do_split: 0 dwc2 49000000.usb-otg: complete_split: 0 dwc2 49000000.usb-otg: hub_addr: 0 dwc2 49000000.usb-otg: hub_port: 0 dwc2 49000000.usb-otg: xact_pos: 0 dwc2 49000000.usb-otg: requests: 0 dwc2 49000000.usb-otg: qh: beb5cc16 dwc2 49000000.usb-otg: Channel 7: dwc2 49000000.usb-otg: dev_addr: 0, ep_num: 0, ep_is_in: 0 dwc2 49000000.usb-otg: speed: 0 dwc2 49000000.usb-otg: ep_type: 0 dwc2 49000000.usb-otg: max_packet: 0 dwc2 49000000.usb-otg: data_pid_start: 0 dwc2 49000000.usb-otg: multi_count: 0 dwc2 49000000.usb-otg: xfer_started: 0 dwc2 49000000.usb-otg: xfer_buf: beb5cc16 dwc2 49000000.usb-otg: xfer_dma: 00000000 dwc2 49000000.usb-otg: xfer_len: 0 dwc2 49000000.usb-otg: xfer_count: 0 dwc2 49000000.usb-otg: halt_on_queue: 0 dwc2 49000000.usb-otg: halt_pending: 0 dwc2 49000000.usb-otg: halt_status: 0 dwc2 49000000.usb-otg: do_split: 0 dwc2 49000000.usb-otg: complete_split: 0 dwc2 49000000.usb-otg: hub_addr: 0 dwc2 49000000.usb-otg: hub_port: 0 dwc2 49000000.usb-otg: xact_pos: 0 dwc2 49000000.usb-otg: requests: 0 dwc2 49000000.usb-otg: qh: beb5cc16 dwc2 49000000.usb-otg: Channel 8: dwc2 49000000.usb-otg: dev_addr: 0, ep_num: 0, ep_is_in: 0 dwc2 49000000.usb-otg: speed: 0 dwc2 49000000.usb-otg: ep_type: 0 dwc2 49000000.usb-otg: max_packet: 0 dwc2 49000000.usb-otg: data_pid_start: 0 dwc2 49000000.usb-otg: multi_count: 0 dwc2 49000000.usb-otg: xfer_started: 0 dwc2 49000000.usb-otg: xfer_buf: beb5cc16 dwc2 49000000.usb-otg: xfer_dma: 00000000 dwc2 49000000.usb-otg: xfer_len: 0 dwc2 49000000.usb-otg: xfer_count: 0 dwc2 49000000.usb-otg: halt_on_queue: 0 dwc2 49000000.usb-otg: halt_pending: 0 dwc2 49000000.usb-otg: halt_status: 0 dwc2 49000000.usb-otg: do_split: 0 dwc2 49000000.usb-otg: complete_split: 0 dwc2 49000000.usb-otg: hub_addr: 0 dwc2 49000000.usb-otg: hub_port: 0 dwc2 49000000.usb-otg: xact_pos: 0 dwc2 49000000.usb-otg: requests: 0 dwc2 49000000.usb-otg: qh: beb5cc16 dwc2 49000000.usb-otg: Channel 9: dwc2 49000000.usb-otg: dev_addr: 0, ep_num: 0, ep_is_in: 0 dwc2 49000000.usb-otg: speed: 0 dwc2 49000000.usb-otg: ep_type: 0 dwc2 49000000.usb-otg: max_packet: 0 dwc2 49000000.usb-otg: data_pid_start: 0 dwc2 49000000.usb-otg: multi_count: 0 dwc2 49000000.usb-otg: xfer_started: 0 dwc2 49000000.usb-otg: xfer_buf: beb5cc16 dwc2 49000000.usb-otg: xfer_dma: 00000000 dwc2 49000000.usb-otg: xfer_len: 0 dwc2 49000000.usb-otg: xfer_count: 0 dwc2 49000000.usb-otg: halt_on_queue: 0 dwc2 49000000.usb-otg: halt_pending: 0 dwc2 49000000.usb-otg: halt_status: 0 dwc2 49000000.usb-otg: do_split: 0 dwc2 49000000.usb-otg: complete_split: 0 dwc2 49000000.usb-otg: hub_addr: 0 dwc2 49000000.usb-otg: hub_port: 0 dwc2 49000000.usb-otg: xact_pos: 0 dwc2 49000000.usb-otg: requests: 0 dwc2 49000000.usb-otg: qh: beb5cc16 dwc2 49000000.usb-otg: Channel 10: dwc2 49000000.usb-otg: dev_addr: 0, ep_num: 0, ep_is_in: 0 dwc2 49000000.usb-otg: speed: 0 dwc2 49000000.usb-otg: ep_type: 0 dwc2 49000000.usb-otg: max_packet: 0 dwc2 49000000.usb-otg: data_pid_start: 0 dwc2 49000000.usb-otg: multi_count: 0 dwc2 49000000.usb-otg: xfer_started: 0 dwc2 49000000.usb-otg: xfer_buf: beb5cc16 dwc2 49000000.usb-otg: xfer_dma: 00000000 dwc2 49000000.usb-otg: xfer_len: 0 dwc2 49000000.usb-otg: xfer_count: 0 dwc2 49000000.usb-otg: halt_on_queue: 0 dwc2 49000000.usb-otg: halt_pending: 0 dwc2 49000000.usb-otg: halt_status: 0 dwc2 49000000.usb-otg: do_split: 0 dwc2 49000000.usb-otg: complete_split: 0 dwc2 49000000.usb-otg: hub_addr: 0 dwc2 49000000.usb-otg: hub_port: 0 dwc2 49000000.usb-otg: xact_pos: 0 dwc2 49000000.usb-otg: requests: 0 dwc2 49000000.usb-otg: qh: beb5cc16 dwc2 49000000.usb-otg: Channel 11: dwc2 49000000.usb-otg: dev_addr: 0, ep_num: 0, ep_is_in: 0 dwc2 49000000.usb-otg: speed: 0 dwc2 49000000.usb-otg: ep_type: 0 dwc2 49000000.usb-otg: max_packet: 0 dwc2 49000000.usb-otg: data_pid_start: 0 dwc2 49000000.usb-otg: multi_count: 0 dwc2 49000000.usb-otg: xfer_started: 0 dwc2 49000000.usb-otg: xfer_buf: beb5cc16 dwc2 49000000.usb-otg: xfer_dma: 00000000 dwc2 49000000.usb-otg: xfer_len: 0 dwc2 49000000.usb-otg: xfer_count: 0 dwc2 49000000.usb-otg: halt_on_queue: 0 dwc2 49000000.usb-otg: halt_pending: 0 dwc2 49000000.usb-otg: halt_status: 0 dwc2 49000000.usb-otg: do_split: 0 dwc2 49000000.usb-otg: complete_split: 0 dwc2 49000000.usb-otg: hub_addr: 0 dwc2 49000000.usb-otg: hub_port: 0 dwc2 49000000.usb-otg: xact_pos: 0 dwc2 49000000.usb-otg: requests: 0 dwc2 49000000.usb-otg: qh: beb5cc16 dwc2 49000000.usb-otg: Channel 12: dwc2 49000000.usb-otg: dev_addr: 0, ep_num: 0, ep_is_in: 0 dwc2 49000000.usb-otg: speed: 0 dwc2 49000000.usb-otg: ep_type: 0 dwc2 49000000.usb-otg: max_packet: 0 dwc2 49000000.usb-otg: data_pid_start: 0 dwc2 49000000.usb-otg: multi_count: 0 dwc2 49000000.usb-otg: xfer_started: 0 dwc2 49000000.usb-otg: xfer_buf: beb5cc16 dwc2 49000000.usb-otg: xfer_dma: 00000000 dwc2 49000000.usb-otg: xfer_len: 0 dwc2 49000000.usb-otg: xfer_count: 0 dwc2 49000000.usb-otg: halt_on_queue: 0 dwc2 49000000.usb-otg: halt_pending: 0 dwc2 49000000.usb-otg: halt_status: 0 dwc2 49000000.usb-otg: do_split: 0 dwc2 49000000.usb-otg: complete_split: 0 dwc2 49000000.usb-otg: hub_addr: 0 dwc2 49000000.usb-otg: hub_port: 0 dwc2 49000000.usb-otg: xact_pos: 0 dwc2 49000000.usb-otg: requests: 0 dwc2 49000000.usb-otg: qh: beb5cc16 dwc2 49000000.usb-otg: Channel 13: dwc2 49000000.usb-otg: dev_addr: 0, ep_num: 0, ep_is_in: 0 dwc2 49000000.usb-otg: speed: 0 dwc2 49000000.usb-otg: ep_type: 0 dwc2 49000000.usb-otg: max_packet: 0 dwc2 49000000.usb-otg: data_pid_start: 0 dwc2 49000000.usb-otg: multi_count: 0 dwc2 49000000.usb-otg: xfer_started: 0 dwc2 49000000.usb-otg: xfer_buf: beb5cc16 dwc2 49000000.usb-otg: xfer_dma: 00000000 dwc2 49000000.usb-otg: xfer_len: 0 dwc2 49000000.usb-otg: xfer_count: 0 dwc2 49000000.usb-otg: halt_on_queue: 0 dwc2 49000000.usb-otg: halt_pending: 0 dwc2 49000000.usb-otg: halt_status: 0 dwc2 49000000.usb-otg: do_split: 0 dwc2 49000000.usb-otg: complete_split: 0 dwc2 49000000.usb-otg: hub_addr: 0 dwc2 49000000.usb-otg: hub_port: 0 dwc2 49000000.usb-otg: xact_pos: 0 dwc2 49000000.usb-otg: requests: 0 dwc2 49000000.usb-otg: qh: beb5cc16 dwc2 49000000.usb-otg: Channel 14: dwc2 49000000.usb-otg: dev_addr: 0, ep_num: 0, ep_is_in: 0 dwc2 49000000.usb-otg: speed: 0 dwc2 49000000.usb-otg: ep_type: 0 dwc2 49000000.usb-otg: max_packet: 0 dwc2 49000000.usb-otg: data_pid_start: 0 dwc2 49000000.usb-otg: multi_count: 0 dwc2 49000000.usb-otg: xfer_started: 0 dwc2 49000000.usb-otg: xfer_buf: beb5cc16 dwc2 49000000.usb-otg: xfer_dma: 00000000 dwc2 49000000.usb-otg: xfer_len: 0 dwc2 49000000.usb-otg: xfer_count: 0 dwc2 49000000.usb-otg: halt_on_queue: 0 dwc2 49000000.usb-otg: halt_pending: 0 dwc2 49000000.usb-otg: halt_status: 0 dwc2 49000000.usb-otg: do_split: 0 dwc2 49000000.usb-otg: complete_split: 0 dwc2 49000000.usb-otg: hub_addr: 0 dwc2 49000000.usb-otg: hub_port: 0 dwc2 49000000.usb-otg: xact_pos: 0 dwc2 49000000.usb-otg: requests: 0 dwc2 49000000.usb-otg: qh: beb5cc16 dwc2 49000000.usb-otg: Channel 15: dwc2 49000000.usb-otg: dev_addr: 0, ep_num: 0, ep_is_in: 0 dwc2 49000000.usb-otg: speed: 0 dwc2 49000000.usb-otg: ep_type: 0 dwc2 49000000.usb-otg: max_packet: 0 dwc2 49000000.usb-otg: data_pid_start: 0 dwc2 49000000.usb-otg: multi_count: 0 dwc2 49000000.usb-otg: xfer_started: 0 dwc2 49000000.usb-otg: xfer_buf: beb5cc16 dwc2 49000000.usb-otg: xfer_dma: 00000000 dwc2 49000000.usb-otg: xfer_len: 0 dwc2 49000000.usb-otg: xfer_count: 0 dwc2 49000000.usb-otg: halt_on_queue: 0 dwc2 49000000.usb-otg: halt_pending: 0 dwc2 49000000.usb-otg: halt_status: 0 dwc2 49000000.usb-otg: do_split: 0 dwc2 49000000.usb-otg: complete_split: 0 dwc2 49000000.usb-otg: hub_addr: 0 dwc2 49000000.usb-otg: hub_port: 0 dwc2 49000000.usb-otg: xact_pos: 0 dwc2 49000000.usb-otg: requests: 0 dwc2 49000000.usb-otg: qh: beb5cc16 dwc2 49000000.usb-otg: non_periodic_channels: 0 dwc2 49000000.usb-otg: periodic_channels: 0 dwc2 49000000.usb-otg: periodic_usecs: 0 dwc2 49000000.usb-otg: NP Tx Req Queue Space Avail: 8 dwc2 49000000.usb-otg: NP Tx FIFO Space Avail: 1024 dwc2 49000000.usb-otg: P Tx Req Queue Space Avail: 8 dwc2 49000000.usb-otg: P Tx FIFO Space Avail: 1024 dwc2 49000000.usb-otg: Core Global Registers dwc2 49000000.usb-otg: GOTGCTL @0xF0960000 : 0x00010000 dwc2 49000000.usb-otg: GOTGINT @0xF0960004 : 0x00000000 dwc2 49000000.usb-otg: GAHBCFG @0xF0960008 : 0x00000022 dwc2 49000000.usb-otg: GUSBCFG @0xF096000C : 0x00001400 dwc2 49000000.usb-otg: GRSTCTL @0xF0960010 : 0x80000000 dwc2 49000000.usb-otg: GINTSTS @0xF0960014 : 0x04000022 dwc2 49000000.usb-otg: GINTMSK @0xF0960018 : 0xD8000806 dwc2 49000000.usb-otg: GRXSTSR @0xF096001C : 0x00000000 dwc2 49000000.usb-otg: GRXFSIZ @0xF0960024 : 0x00000400 dwc2 49000000.usb-otg: GNPTXFSIZ @0xF0960028 : 0x04000400 dwc2 49000000.usb-otg: GNPTXSTS @0xF096002C : 0x00080400 dwc2 49000000.usb-otg: GI2CCTL @0xF0960030 : 0x00000000 dwc2 49000000.usb-otg: GPVNDCTL @0xF0960034 : 0x00000000 dwc2 49000000.usb-otg: GGPIO @0xF0960038 : 0x00600000 dwc2 49000000.usb-otg: GUID @0xF096003C : 0x00004000 dwc2 49000000.usb-otg: GSNPSID @0xF0960040 : 0x4F54330A dwc2 49000000.usb-otg: GHWCFG1 @0xF0960044 : 0x00000000 dwc2 49000000.usb-otg: GHWCFG2 @0xF0960048 : 0x228FE150 dwc2 49000000.usb-otg: GHWCFG3 @0xF096004C : 0x03B892E8 dwc2 49000000.usb-otg: GHWCFG4 @0xF0960050 : 0xE3F00030 dwc2 49000000.usb-otg: GLPMCFG @0xF0960054 : 0x00000000 dwc2 49000000.usb-otg: GPWRDN @0xF0960058 : 0x00200010 dwc2 49000000.usb-otg: GDFIFOCFG @0xF096005C : 0x03B80400 dwc2 49000000.usb-otg: HPTXFSIZ @0xF0960100 : 0x00000000 dwc2 49000000.usb-otg: PCGCTL @0xF0960E00 : 0x00000000 dwc2 49000000.usb-otg: Host Global Registers dwc2 49000000.usb-otg: HCFG @0xF0960400 : 0x00100000 dwc2 49000000.usb-otg: HFIR @0xF0960404 : 0x000017D7 dwc2 49000000.usb-otg: HFNUM @0xF0960408 : 0x00000000 dwc2 49000000.usb-otg: HPTXSTS @0xF0960410 : 0x00080400 dwc2 49000000.usb-otg: HAINT @0xF0960414 : 0x00000000 dwc2 49000000.usb-otg: HAINTMSK @0xF0960418 : 0x00000000 dwc2 49000000.usb-otg: HPRT0 @0xF0960440 : 0x00000000 dwc2 49000000.usb-otg: Host Channel 0 Specific Registers dwc2 49000000.usb-otg: HCCHAR @0xF0960500 : 0x00000000 dwc2 49000000.usb-otg: HCSPLT @0xF0960504 : 0x00000000 dwc2 49000000.usb-otg: HCINT @0xF0960508 : 0x00000000 dwc2 49000000.usb-otg: HCINTMSK @0xF096050C : 0x00000000 dwc2 49000000.usb-otg: HCTSIZ @0xF0960510 : 0x00000000 dwc2 49000000.usb-otg: HCDMA @0xF0960514 : 0xA167DB6C dwc2 49000000.usb-otg: Host Channel 1 Specific Registers dwc2 49000000.usb-otg: HCCHAR @0xF0960520 : 0x00000000 dwc2 49000000.usb-otg: HCSPLT @0xF0960524 : 0x00000000 dwc2 49000000.usb-otg: HCINT @0xF0960528 : 0x00000000 dwc2 49000000.usb-otg: HCINTMSK @0xF096052C : 0x00000000 dwc2 49000000.usb-otg: HCTSIZ @0xF0960530 : 0x00000000 dwc2 49000000.usb-otg: HCDMA @0xF0960534 : 0x6C5B347C dwc2 49000000.usb-otg: Host Channel 2 Specific Registers dwc2 49000000.usb-otg: HCCHAR @0xF0960540 : 0x00000000 dwc2 49000000.usb-otg: HCSPLT @0xF0960544 : 0x00000000 dwc2 49000000.usb-otg: HCINT @0xF0960548 : 0x00000000 dwc2 49000000.usb-otg: HCINTMSK @0xF096054C : 0x00000000 dwc2 49000000.usb-otg: HCTSIZ @0xF0960550 : 0x00000000 dwc2 49000000.usb-otg: HCDMA @0xF0960554 : 0x503148EA dwc2 49000000.usb-otg: Host Channel 3 Specific Registers dwc2 49000000.usb-otg: HCCHAR @0xF0960560 : 0x00000000 dwc2 49000000.usb-otg: HCSPLT @0xF0960564 : 0x00000000 dwc2 49000000.usb-otg: HCINT @0xF0960568 : 0x00000000 dwc2 49000000.usb-otg: HCINTMSK @0xF096056C : 0x00000000 dwc2 49000000.usb-otg: HCTSIZ @0xF0960570 : 0x00000000 dwc2 49000000.usb-otg: HCDMA @0xF0960574 : 0x9436577A dwc2 49000000.usb-otg: Host Channel 4 Specific Registers dwc2 49000000.usb-otg: HCCHAR @0xF0960580 : 0x00000000 dwc2 49000000.usb-otg: HCSPLT @0xF0960584 : 0x00000000 dwc2 49000000.usb-otg: HCINT @0xF0960588 : 0x00000000 dwc2 49000000.usb-otg: HCINTMSK @0xF096058C : 0x00000000 dwc2 49000000.usb-otg: HCTSIZ @0xF0960590 : 0x00000000 dwc2 49000000.usb-otg: HCDMA @0xF0960594 : 0xB09AE0DE dwc2 49000000.usb-otg: Host Channel 5 Specific Registers dwc2 49000000.usb-otg: HCCHAR @0xF09605A0 : 0x00000000 dwc2 49000000.usb-otg: HCSPLT @0xF09605A4 : 0x00000000 dwc2 49000000.usb-otg: HCINT @0xF09605A8 : 0x00000000 dwc2 49000000.usb-otg: HCINTMSK @0xF09605AC : 0x00000000 dwc2 49000000.usb-otg: HCTSIZ @0xF09605B0 : 0x00000000 dwc2 49000000.usb-otg: HCDMA @0xF09605B4 : 0xA8B8774F dwc2 49000000.usb-otg: Host Channel 6 Specific Registers dwc2 49000000.usb-otg: HCCHAR @0xF09605C0 : 0x00000000 dwc2 49000000.usb-otg: HCSPLT @0xF09605C4 : 0x00000000 dwc2 49000000.usb-otg: HCINT @0xF09605C8 : 0x00000000 dwc2 49000000.usb-otg: HCINTMSK @0xF09605CC : 0x00000000 dwc2 49000000.usb-otg: HCTSIZ @0xF09605D0 : 0x00000000 dwc2 49000000.usb-otg: HCDMA @0xF09605D4 : 0x58D5E904 dwc2 49000000.usb-otg: Host Channel 7 Specific Registers dwc2 49000000.usb-otg: HCCHAR @0xF09605E0 : 0x00000000 dwc2 49000000.usb-otg: HCSPLT @0xF09605E4 : 0x00000000 dwc2 49000000.usb-otg: HCINT @0xF09605E8 : 0x00000000 dwc2 49000000.usb-otg: HCINTMSK @0xF09605EC : 0x00000000 dwc2 49000000.usb-otg: HCTSIZ @0xF09605F0 : 0x00000000 dwc2 49000000.usb-otg: HCDMA @0xF09605F4 : 0x8FBAE0D9 dwc2 49000000.usb-otg: Host Channel 8 Specific Registers dwc2 49000000.usb-otg: HCCHAR @0xF0960600 : 0x00000000 dwc2 49000000.usb-otg: HCSPLT @0xF0960604 : 0x00000000 dwc2 49000000.usb-otg: HCINT @0xF0960608 : 0x00000000 dwc2 49000000.usb-otg: HCINTMSK @0xF096060C : 0x00000000 dwc2 49000000.usb-otg: HCTSIZ @0xF0960610 : 0x00000000 dwc2 49000000.usb-otg: HCDMA @0xF0960614 : 0xE7B6AB62 dwc2 49000000.usb-otg: Host Channel 9 Specific Registers dwc2 49000000.usb-otg: HCCHAR @0xF0960620 : 0x00000000 dwc2 49000000.usb-otg: HCSPLT @0xF0960624 : 0x00000000 dwc2 49000000.usb-otg: HCINT @0xF0960628 : 0x00000000 dwc2 49000000.usb-otg: HCINTMSK @0xF096062C : 0x00000000 dwc2 49000000.usb-otg: HCTSIZ @0xF0960630 : 0x00000000 dwc2 49000000.usb-otg: HCDMA @0xF0960634 : 0x22F87FC6 dwc2 49000000.usb-otg: Host Channel 10 Specific Registers dwc2 49000000.usb-otg: HCCHAR @0xF0960640 : 0x00000000 dwc2 49000000.usb-otg: HCSPLT @0xF0960644 : 0x00000000 dwc2 49000000.usb-otg: HCINT @0xF0960648 : 0x00000000 dwc2 49000000.usb-otg: HCINTMSK @0xF096064C : 0x00000000 dwc2 49000000.usb-otg: HCTSIZ @0xF0960650 : 0x00000000 dwc2 49000000.usb-otg: HCDMA @0xF0960654 : 0x22F87FC6 dwc2 49000000.usb-otg: Host Channel 11 Specific Registers dwc2 49000000.usb-otg: HCCHAR @0xF0960660 : 0x00000000 dwc2 49000000.usb-otg: HCSPLT @0xF0960664 : 0x00000000 dwc2 49000000.usb-otg: HCINT @0xF0960668 : 0x00000000 dwc2 49000000.usb-otg: HCINTMSK @0xF096066C : 0x00000000 dwc2 49000000.usb-otg: HCTSIZ @0xF0960670 : 0x00000000 dwc2 49000000.usb-otg: HCDMA @0xF0960674 : 0x22F87FC6 dwc2 49000000.usb-otg: Host Channel 12 Specific Registers dwc2 49000000.usb-otg: HCCHAR @0xF0960680 : 0x00000000 dwc2 49000000.usb-otg: HCSPLT @0xF0960684 : 0x00000000 dwc2 49000000.usb-otg: HCINT @0xF0960688 : 0x00000000 dwc2 49000000.usb-otg: HCINTMSK @0xF096068C : 0x00000000 dwc2 49000000.usb-otg: HCTSIZ @0xF0960690 : 0x00000000 dwc2 49000000.usb-otg: HCDMA @0xF0960694 : 0x22F87FC6 dwc2 49000000.usb-otg: Host Channel 13 Specific Registers dwc2 49000000.usb-otg: HCCHAR @0xF09606A0 : 0x00000000 dwc2 49000000.usb-otg: HCSPLT @0xF09606A4 : 0x00000000 dwc2 49000000.usb-otg: HCINT @0xF09606A8 : 0x00000000 dwc2 49000000.usb-otg: HCINTMSK @0xF09606AC : 0x00000000 dwc2 49000000.usb-otg: HCTSIZ @0xF09606B0 : 0x00000000 dwc2 49000000.usb-otg: HCDMA @0xF09606B4 : 0x22F87FC6 dwc2 49000000.usb-otg: Host Channel 14 Specific Registers dwc2 49000000.usb-otg: HCCHAR @0xF09606C0 : 0x00000000 dwc2 49000000.usb-otg: HCSPLT @0xF09606C4 : 0x00000000 dwc2 49000000.usb-otg: HCINT @0xF09606C8 : 0x00000000 dwc2 49000000.usb-otg: HCINTMSK @0xF09606CC : 0x00000000 dwc2 49000000.usb-otg: HCTSIZ @0xF09606D0 : 0x00000000 dwc2 49000000.usb-otg: HCDMA @0xF09606D4 : 0x22F87FC6 dwc2 49000000.usb-otg: Host Channel 15 Specific Registers dwc2 49000000.usb-otg: HCCHAR @0xF09606E0 : 0x00000000 dwc2 49000000.usb-otg: HCSPLT @0xF09606E4 : 0x00000000 dwc2 49000000.usb-otg: HCINT @0xF09606E8 : 0x00000000 dwc2 49000000.usb-otg: HCINTMSK @0xF09606EC : 0x00000000 dwc2 49000000.usb-otg: HCTSIZ @0xF09606F0 : 0x00000000 dwc2 49000000.usb-otg: HCDMA @0xF09606F4 : 0x22F87FC6 dwc2 49000000.usb-otg: ************************************************************ dwc2 49000000.usb-otg: dwc2 49000000.usb-otg: gintsts=04000022 gintmsk=d8000806 dwc2 49000000.usb-otg: GetPortStatus wIndex=0x0001 flags=0x00000000 dwc2 49000000.usb-otg: Mode Mismatch Interrupt: currently in Device mode dwc2 49000000.usb-otg: dwc2_hsotg_irq: 04000020 00000000 (d8000806) retry 8
Hi, On 4/16/2020 6:31 PM, Marek Vasut wrote: > On 4/16/20 3:37 PM, Minas Harutyunyan wrote: >> Or instead of patch, if you have any utility in system which will allow >> from command line clear soft disconnect bit from DCTL register? Offset >> of DCTL register is 0x804. SoftDiscon bit number is 1. Clear this bit >> and then plug cable. > > Clearing that bit with devmem allows the host PC to detect some > high-speed device got connected, but that's it, it does not detect it as > a gadget and no communication really happens. > Please provide part of debug log on above mentioned scenario. >> Unfortunately, currently I'm working from home and can't remotely >> connect/disconnect cable in lab to try to reproduce observed by you issue. > > Maybe you should consider using something like this in the lab: > https://urldefense.com/v3/__https://www.ti.com/product/TS3USB30__;!!A4F2R9G_pg!O9sBVS3qah9rW57ccw0cT_8vz5fw0Ku3K_ZtNLuL2LNez4_AGF6wP2ZoKY2NF7yZ2vEfjmdg$ > Thanks for advise. I'll buy and setup multiplexer later, because currently I'm on quarantine and can't visit office. > [...] > > dwc2 49000000.usb-otg: mapped PA 49000000 to VA 473352f1 > dwc2 49000000.usb-otg: mapped PA 49000000 to VA 923761cb > dwc2 49000000.usb-otg: supply vusb_d not found, using dummy regulator > dwc2 49000000.usb-otg: supply vusb_a not found, using dummy regulator > dwc2 49000000.usb-otg: registering common handler for irq48 > dwc2 49000000.usb-otg: dwc2_core_reset() > dwc2 49000000.usb-otg: Core Release: 3.30a (snpsid=4f54330a) > dwc2 49000000.usb-otg: Forcing mode to host > dwc2 49000000.usb-otg: Waiting for host mode > dwc2 49000000.usb-otg: Host mode set > dwc2 49000000.usb-otg: Forcing mode to device > dwc2 49000000.usb-otg: Waiting for device mode > dwc2 49000000.usb-otg: Device mode set > dwc2 49000000.usb-otg: Clearing force mode bits > dwc2 49000000.usb-otg: NonPeriodic TXFIFO size: 32 > dwc2 49000000.usb-otg: RXFIFO size: 256 > dwc2 49000000.usb-otg: EPs: 9, dedicated fifos, 952 entries in SPRAM > dwc2 49000000.usb-otg: bound driver zero > dwc2 49000000.usb-otg: dwc2_hsotg_pullup: is_on: 1 op_state: 0 > dwc2 49000000.usb-otg: DCFG=0x08100000, DCTL=0x00000002, DIEPMSK=00000000 > dwc2 49000000.usb-otg: GAHBCFG=0x00000000, GHWCFG1=0x00000000 > dwc2 49000000.usb-otg: GRXFSIZ=0x00000400, GNPTXFSIZ=0x04000400 > dwc2 49000000.usb-otg: DPTx[1] FSize=1024, StAddr=0x00000800 > dwc2 49000000.usb-otg: DPTx[2] FSize=1024, StAddr=0x00000c00 Do you use zero gadget? Pay attention that bounding function driver and pullup set to 1 much earlier than core/dwc2 finished initialization. Can you modprobe zero gadget after dwc2 fully initialized? Thanks, Minas
On 4/17/20 11:00 AM, Minas Harutyunyan wrote: > Hi, Hi, > On 4/16/2020 6:31 PM, Marek Vasut wrote: >> On 4/16/20 3:37 PM, Minas Harutyunyan wrote: > >>> Or instead of patch, if you have any utility in system which will allow >>> from command line clear soft disconnect bit from DCTL register? Offset >>> of DCTL register is 0x804. SoftDiscon bit number is 1. Clear this bit >>> and then plug cable. >> >> Clearing that bit with devmem allows the host PC to detect some >> high-speed device got connected, but that's it, it does not detect it as >> a gadget and no communication really happens. >> > > Please provide part of debug log on above mentioned scenario. ~ # devmem 0x49000804 0x00000002 ~ # devmem 0x49000804 w 0 [ 38.420954] dwc2 49000000.usb-otg: gintsts=04008c20 gintmsk=d8000806 [ 38.425950] dwc2 49000000.usb-otg: USB SUSPEND [ 38.430395] dwc2 49000000.usb-otg: dwc2_handle_usb_suspend_intr: DSTS=0x400003 [ 38.437630] dwc2 49000000.usb-otg: DSTS.Suspend Status=1 HWCFG4.Power Optimize=1 HWCFG4.Hibernation=0 [ 38.446866] dwc2 49000000.usb-otg: ignore suspend request before enumeration [ 38.453934] dwc2 49000000.usb-otg: dwc2_hsotg_irq: 04008420 00000000 (d8000806) retry 8 ~ # devmem 0x49000804 0x00000000 cable is plugged in below [ 50.224271] dwc2 49000000.usb-otg: gintsts=44008420 gintmsk=d8000806 [ 50.229268] dwc2 49000000.usb-otg: Session request interrupt - lx_state=0 [ 50.236072] dwc2 49000000.usb-otg: dwc2_hsotg_irq: 04008420 00000000 (d8000806) retry 8 [ 50.292232] dwc2 49000000.usb-otg: gintsts=04008c20 gintmsk=d8000806 [ 50.297219] dwc2 49000000.usb-otg: USB SUSPEND [ 50.301666] dwc2 49000000.usb-otg: dwc2_handle_usb_suspend_intr: DSTS=0x400003 [ 50.308902] dwc2 49000000.usb-otg: DSTS.Suspend Status=1 HWCFG4.Power Optimize=1 HWCFG4.Hibernation=0 [ 50.318141] dwc2 49000000.usb-otg: ignore suspend request before enumeration [ 50.325209] dwc2 49000000.usb-otg: dwc2_hsotg_irq: 04008420 00000000 (d8000806) retry 8 >>> Unfortunately, currently I'm working from home and can't remotely >>> connect/disconnect cable in lab to try to reproduce observed by you issue. >> >> Maybe you should consider using something like this in the lab: >> https://urldefense.com/v3/__https://www.ti.com/product/TS3USB30__;!!A4F2R9G_pg!O9sBVS3qah9rW57ccw0cT_8vz5fw0Ku3K_ZtNLuL2LNez4_AGF6wP2ZoKY2NF7yZ2vEfjmdg$ >> > Thanks for advise. I'll buy and setup multiplexer later, because > currently I'm on quarantine and can't visit office. Sure, hope it helps. >> [...] >> >> dwc2 49000000.usb-otg: mapped PA 49000000 to VA 473352f1 >> dwc2 49000000.usb-otg: mapped PA 49000000 to VA 923761cb >> dwc2 49000000.usb-otg: supply vusb_d not found, using dummy regulator >> dwc2 49000000.usb-otg: supply vusb_a not found, using dummy regulator >> dwc2 49000000.usb-otg: registering common handler for irq48 >> dwc2 49000000.usb-otg: dwc2_core_reset() >> dwc2 49000000.usb-otg: Core Release: 3.30a (snpsid=4f54330a) >> dwc2 49000000.usb-otg: Forcing mode to host >> dwc2 49000000.usb-otg: Waiting for host mode >> dwc2 49000000.usb-otg: Host mode set >> dwc2 49000000.usb-otg: Forcing mode to device >> dwc2 49000000.usb-otg: Waiting for device mode >> dwc2 49000000.usb-otg: Device mode set >> dwc2 49000000.usb-otg: Clearing force mode bits >> dwc2 49000000.usb-otg: NonPeriodic TXFIFO size: 32 >> dwc2 49000000.usb-otg: RXFIFO size: 256 >> dwc2 49000000.usb-otg: EPs: 9, dedicated fifos, 952 entries in SPRAM > >> dwc2 49000000.usb-otg: bound driver zero >> dwc2 49000000.usb-otg: dwc2_hsotg_pullup: is_on: 1 op_state: 0 > >> dwc2 49000000.usb-otg: DCFG=0x08100000, DCTL=0x00000002, DIEPMSK=00000000 >> dwc2 49000000.usb-otg: GAHBCFG=0x00000000, GHWCFG1=0x00000000 >> dwc2 49000000.usb-otg: GRXFSIZ=0x00000400, GNPTXFSIZ=0x04000400 >> dwc2 49000000.usb-otg: DPTx[1] FSize=1024, StAddr=0x00000800 >> dwc2 49000000.usb-otg: DPTx[2] FSize=1024, StAddr=0x00000c00 > > Do you use zero gadget? Yes > Pay attention that bounding function driver and > pullup set to 1 much earlier than core/dwc2 finished initialization. > Can you modprobe zero gadget after dwc2 fully initialized? I have the zero gadget compiled into the kernel, I would expect that should work too, right ?
Hi, On 4/20/2020 4:09 PM, Marek Vasut wrote: > On 4/17/20 11:00 AM, Minas Harutyunyan wrote: >> Hi, > > Hi, > >> On 4/16/2020 6:31 PM, Marek Vasut wrote: >>> On 4/16/20 3:37 PM, Minas Harutyunyan wrote: >> Looks like I found cause of issue. According to your logs GINTMSK set host masks, at least USB Reset not unmasked which required for device mode. Why it happen. During dwc2 driver probe first initialized device part then host part. Because of your g_zero is builtin in Kernel it immediately bound to dwc2, as result called main device initialization dwc2_hsotg_core_init_disconnected() which at least set GINTMSK for device mode. After gadget side initialization done, dwc2 go to host initialization hcd_init() and reset GINTMSK to host masks. In this case connecting cable to host will ignore USBReset and stacked. Your initial patch including call to function dwc2_hsotg_core_init_disconnected(), which allow to restore device mode masks and on cable connect start working as device. First to check my assumption, please build g_zero as module and modprobe it after dwc2 modprobe will be done. If the tests will pass then will think how resolve issue with builtin functions. Thanks, Minas
On 4/22/20 3:45 PM, Minas Harutyunyan wrote: > Hi, Hi, > On 4/20/2020 4:09 PM, Marek Vasut wrote: >> On 4/17/20 11:00 AM, Minas Harutyunyan wrote: >>> Hi, >> >> Hi, >> >>> On 4/16/2020 6:31 PM, Marek Vasut wrote: >>>> On 4/16/20 3:37 PM, Minas Harutyunyan wrote: >>> > Looks like I found cause of issue. According to your logs GINTMSK set > host masks, at least USB Reset not unmasked which required for device mode. > Why it happen. During dwc2 driver probe first initialized device part > then host part. Because of your g_zero is builtin in Kernel it > immediately bound to dwc2, as result called main device initialization > dwc2_hsotg_core_init_disconnected() which at least set GINTMSK for > device mode. After gadget side initialization done, dwc2 go to host > initialization hcd_init() and reset GINTMSK to host masks. In this case > connecting cable to host will ignore USBReset and stacked. Your initial > patch including call to function dwc2_hsotg_core_init_disconnected(), > which allow to restore device mode masks and on cable connect start > working as device. > First to check my assumption, please build g_zero as module and modprobe > it after dwc2 modprobe will be done. If the tests will pass then will > think how resolve issue with builtin functions. Using g_zero as a module seems to work too, so please proceed.
On 4/22/20 4:21 PM, Marek Vasut wrote: > On 4/22/20 3:45 PM, Minas Harutyunyan wrote: >> Hi, > > Hi, > >> On 4/20/2020 4:09 PM, Marek Vasut wrote: >>> On 4/17/20 11:00 AM, Minas Harutyunyan wrote: >>>> Hi, >>> >>> Hi, >>> >>>> On 4/16/2020 6:31 PM, Marek Vasut wrote: >>>>> On 4/16/20 3:37 PM, Minas Harutyunyan wrote: >>>> >> Looks like I found cause of issue. According to your logs GINTMSK set >> host masks, at least USB Reset not unmasked which required for device mode. >> Why it happen. During dwc2 driver probe first initialized device part >> then host part. Because of your g_zero is builtin in Kernel it >> immediately bound to dwc2, as result called main device initialization >> dwc2_hsotg_core_init_disconnected() which at least set GINTMSK for >> device mode. After gadget side initialization done, dwc2 go to host >> initialization hcd_init() and reset GINTMSK to host masks. In this case >> connecting cable to host will ignore USBReset and stacked. Your initial >> patch including call to function dwc2_hsotg_core_init_disconnected(), >> which allow to restore device mode masks and on cable connect start >> working as device. >> First to check my assumption, please build g_zero as module and modprobe >> it after dwc2 modprobe will be done. If the tests will pass then will >> think how resolve issue with builtin functions. > > Using g_zero as a module seems to work too, so please proceed. Any news on using g_zero as built-in ?
Hi Marek, On 5/14/2020 4:10 AM, Marek Vasut wrote: > On 4/22/20 4:21 PM, Marek Vasut wrote: >> On 4/22/20 3:45 PM, Minas Harutyunyan wrote: >>> Hi, >> >> Hi, >> >>> On 4/20/2020 4:09 PM, Marek Vasut wrote: >>>> On 4/17/20 11:00 AM, Minas Harutyunyan wrote: >>>>> Hi, >>>> >>>> Hi, >>>> >>>>> On 4/16/2020 6:31 PM, Marek Vasut wrote: >>>>>> On 4/16/20 3:37 PM, Minas Harutyunyan wrote: >>>>> >>> Looks like I found cause of issue. According to your logs GINTMSK set >>> host masks, at least USB Reset not unmasked which required for device mode. >>> Why it happen. During dwc2 driver probe first initialized device part >>> then host part. Because of your g_zero is builtin in Kernel it >>> immediately bound to dwc2, as result called main device initialization >>> dwc2_hsotg_core_init_disconnected() which at least set GINTMSK for >>> device mode. After gadget side initialization done, dwc2 go to host >>> initialization hcd_init() and reset GINTMSK to host masks. In this case >>> connecting cable to host will ignore USBReset and stacked. Your initial >>> patch including call to function dwc2_hsotg_core_init_disconnected(), >>> which allow to restore device mode masks and on cable connect start >>> working as device. >>> First to check my assumption, please build g_zero as module and modprobe >>> it after dwc2 modprobe will be done. If the tests will pass then will >>> think how resolve issue with builtin functions. >> >> Using g_zero as a module seems to work too, so please proceed. > > Any news on using g_zero as built-in ? > Could you please test with this patch. diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c index 12b98b466287..7faf5f8c056d 100644 --- a/drivers/usb/dwc2/gadget.c +++ b/drivers/usb/dwc2/gadget.c @@ -4920,12 +4920,6 @@ int dwc2_gadget_init(struct dwc2_hsotg *hsotg) epnum, 0); } - ret = usb_add_gadget_udc(dev, &hsotg->gadget); - if (ret) { - dwc2_hsotg_ep_free_request(&hsotg->eps_out[0]->ep, - hsotg->ctrl_req); - return ret; - } dwc2_hsotg_dump(hsotg); return 0; diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c index 8ea4a24637fa..603b85cd8ed3 100644 --- a/drivers/usb/dwc2/platform.c +++ b/drivers/usb/dwc2/platform.c @@ -537,6 +537,16 @@ static int dwc2_driver_probe(struct platform_device *dev) if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL) dwc2_lowlevel_hw_disable(hsotg); + /* Postponed adding a new gadget to the udc class driver list */ + if (hsotg->gadget_enabled) { + retval = usb_add_gadget_udc(hsotg->dev, &hsotg->gadget); + if (retval) { + dwc2_hsotg_remove(hsotg); + goto error_init; + } + + } + return 0; error_init: Thanks, Minas
Hi Marek, On 5/15/2020 11:41 AM, Minas Harutyunyan wrote: > Hi Marek, Any update on on this patch testing? Thanks, Minas >> > Could you please test with this patch. > > diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c > index 12b98b466287..7faf5f8c056d 100644 > --- a/drivers/usb/dwc2/gadget.c > +++ b/drivers/usb/dwc2/gadget.c > @@ -4920,12 +4920,6 @@ int dwc2_gadget_init(struct dwc2_hsotg *hsotg) > epnum, 0); > } > > - ret = usb_add_gadget_udc(dev, &hsotg->gadget); > - if (ret) { > - dwc2_hsotg_ep_free_request(&hsotg->eps_out[0]->ep, > - hsotg->ctrl_req); > - return ret; > - } > dwc2_hsotg_dump(hsotg); > > return 0; > diff --git a/drivers/usb/dwc2/platform.c b/drivers/usb/dwc2/platform.c > index 8ea4a24637fa..603b85cd8ed3 100644 > --- a/drivers/usb/dwc2/platform.c > +++ b/drivers/usb/dwc2/platform.c > @@ -537,6 +537,16 @@ static int dwc2_driver_probe(struct platform_device > *dev) > if (hsotg->dr_mode == USB_DR_MODE_PERIPHERAL) > dwc2_lowlevel_hw_disable(hsotg); > > + /* Postponed adding a new gadget to the udc class driver list */ > + if (hsotg->gadget_enabled) { > + retval = usb_add_gadget_udc(hsotg->dev, &hsotg->gadget); > + if (retval) { > + dwc2_hsotg_remove(hsotg); > + goto error_init; > + } > + > + } > + > return 0; > > error_init: > > > > Thanks, > Minas >
On 5/27/20 8:17 AM, Minas Harutyunyan wrote: > Hi Marek, Hi, > On 5/15/2020 11:41 AM, Minas Harutyunyan wrote: >> Hi Marek, > > Any update on on this patch testing? > > Thanks, > Minas > >>> >> Could you please test with this patch. Yes, that works, thanks. This should likely get a Stable: tag when submitting.
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c index b90f858af960..ead605efeb24 100644 --- a/drivers/usb/dwc2/hcd.c +++ b/drivers/usb/dwc2/hcd.c @@ -5237,6 +5237,11 @@ int dwc2_hcd_init(struct dwc2_hsotg *hsotg) dwc2_enable_global_interrupts(hsotg); + dwc2_hsotg_core_init_disconnected(hsotg, false); + /* Enable ACG feature in device mode,if supported */ + dwc2_enable_acg(hsotg); + dwc2_hsotg_core_connect(hsotg); + return 0; error4:
On STM32MP1 without the STUSB1600 USB-C chip (i.e. with plain USB-OTG micro-B plug with ID and VBUS detection), the USB OTG port only works if a micro-B device (e.g. a USB stick) is plugged in first. Once this is done, both micro-B device and host (e.g. a PC via a USB A-to-microB cable) are correctly detected and recognized. If a USB host is plugged in first (e.g. a PC), then the PC does not detect the STM32MP1 at all. By running the core connect code in dwc2_hcd_init(), both device and host are detected and the USB works as expected. However, it is not clear whether this is the correct solution. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Amelie Delaunay <amelie.delaunay@st.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Cc: Minas Harutyunyan <hminas@synopsys.com> To: linux-usb@vger.kernel.org --- drivers/usb/dwc2/hcd.c | 5 +++++ 1 file changed, 5 insertions(+)