On 02/28/2017 02:44 PM, Vardan Mikayelyan wrote: > On 2/28/2017 3:44 PM, Francesco Lavra wrote: >> Hi Vardan, >> >> On 02/28/2017 09:41 AM, Vardan Mikayelyan wrote: >>> On 2/27/2017 11:55 PM, Francesco Lavra wrote: >>>> Hi, >>>> >>>> On 02/23/2017 08:27 PM, Heiko Stuebner wrote: >>>>> Hi Francesco, >>>>> >>>>> Am Donnerstag, 23. Februar 2017, 19:11:37 CET schrieb Francesco Lavra: >>>>>> I'm having trouble getting the RK3288 OTG controller (the one at >>>>>> ff580000) to work in peripheral mode. I'm using a Firefly Reload board, >>>>>> and I know the hardware is fine because I can successfully use the port >>>>>> in device mode with U-Boot's mass storage gadget driver. >>>>>> Under Linux, the OTG port works fine when used in host mode, but fails >>>>>> to work in device mode: nothing happens when the a USB host is plugged >>>>>> into the OTG port, not even a single interrupt is generated by the >>>>>> controller. I'm using the latest device tree definitions from >>>>>> git://git.kernel.org/pub/scm/linux/kernel/git/mmind/linux-rockchip.git. >>>>> >>>>> you shouldn't use my tree as base for any real work :-) . Best to use the >>>>> regular mainline kernel or alternatively try linux-next to get all recent usb >>>>> changes schedules for the next release. >>>> >>>> Thanks for your inputs. >>>> >>>> I was actually using the mainline kernel (4.8.1), in which the dwc2 >>>> driver wasn't working, that's why I went to your tree to pick up any >>>> fixes or new features that might have been done. I also went to the >>>> linux-usb tree for the same reason. >>>> >>>> Anyway, today I tried with the latest mainline release 4.10.0, and also >>>> with linux-next. Unfortunately, still no luck: I can load a gadget >>>> driver, which gets correctly bound to the OTG controller, but then >>>> nothing happens if a USB host is connected to the OTG port. >>>> I'm pasting below the dmesg contents (obtained with 4.10.0, with verbose >>>> debugging enabled for the dwc2 driver) when a gadget driver is loaded, >>>> in case you might spot something suspicious: >>>> >>>> [ 1147.035367] dwc2 ff580000.usb: bound driver g_audio >>>> [ 1147.041203] dwc2 ff580000.usb: dwc2_hsotg_pullup: is_on: 1 op_state: 3 >>>> [ 1147.041250] dwc2 ff580000.usb: dwc2_core_reset() >>>> [ 1147.041345] dwc2 ff580000.usb: FIFOs reset, timeout at 100 >>>> [ 1147.041405] dwc2 ff580000.usb: EP0: DIEPCTL0=0x00008000, >>>> DOEPCTL0=0x00008000 >>>> [ 1147.041447] dwc2 ff580000.usb: gsintmsk now 0xd08c3cc4 >>>> [ 1147.041554] dwc2 ff580000.usb: DCTL=0x00000002 >>>> [ 1147.041631] dwc2 ff580000.usb: dwc2_hsotg_enqueue_setup: queueing >>>> setup request >>>> [ 1147.041692] dwc2 ff580000.usb: ep0: req ee241680: 8 at ee241198, noi=0, >>>> zero=0, snok=0 >>>> [ 1147.041757] dwc2 ff580000.usb: dwc2_hsotg_start_req: >>>> DxEPCTL=0x80008000, ep 0, dir out >>>> [ 1147.041799] dwc2 ff580000.usb: ureq->length:8 ureq->actual:0 >>>> [ 1147.041896] dwc2 ff580000.usb: dwc2_hsotg_start_req: 1 at 8/8, >>>> 0x00080008 => 0x00000b10 >>>> [ 1147.041975] dwc2 ff580000.usb: dwc2_hsotg_start_req: 2e243000 pad => >>>> 0x00000b14 >>>> [ 1147.042014] dwc2 ff580000.usb: ep0 state:0 >>>> [ 1147.042055] dwc2 ff580000.usb: dwc2_hsotg_start_req: DxEPCTL=0x80008000 >>>> [ 1147.042097] dwc2 ff580000.usb: dwc2_hsotg_start_req: DXEPCTL=0x80008000 >>>> [ 1147.042169] dwc2 ff580000.usb: EP0: DIEPCTL0=0x00008000, >>>> DOEPCTL0=0x80008000 >>>> >>>> Thanks, >>>> Francesco >>>> -- >>> >>> Hi Francesco, >>> >>> Could you please provide full log (with debugs enabled) from DWC2 driver >>> loading to issue point? Two logs are not giving us the full picture. >> >> The full log from the DWC2 driver is below: >> >> [ 1.498030] dwc2 ff580000.usb: ff580000.usb supply vusb_d not found, >> using dummy regulator >> [ 1.507431] dwc2 ff580000.usb: ff580000.usb supply vusb_a not found, >> using dummy regulator >> [ 1.880012] dwc2 ff580000.usb: dwc2_check_param_tx_fifo_sizes: >> Invalid parameter g-tx-fifo-size, setting to default average >> [ 1.892596] dwc2 ff580000.usb: EPs: 10, dedicated fifos, 972 entries >> in SPRAM >> [ 1.901018] dwc2 ff580000.usb: DCFG=0x08100000, DCTL=0x00000002, >> DIEPMSK=00000000 >> [ 1.909432] dwc2 ff580000.usb: GAHBCFG=0x00000000, GHWCFG1=0x00006664 >> [ 1.916698] dwc2 ff580000.usb: GRXFSIZ=0x00000400, GNPTXFSIZ=0x00100400 >> [ 1.924161] dwc2 ff580000.usb: DPTx[1] FSize=256, StAddr=0x00000410 >> [ 1.931224] dwc2 ff580000.usb: DPTx[2] FSize=256, StAddr=0x00000900 >> [ 1.938261] dwc2 ff580000.usb: DPTx[3] FSize=256, StAddr=0x00000a00 >> [ 1.945318] dwc2 ff580000.usb: DPTx[4] FSize=256, StAddr=0x00000b00 >> [ 1.952375] dwc2 ff580000.usb: DPTx[5] FSize=256, StAddr=0x00000c00 >> [ 1.959410] dwc2 ff580000.usb: DPTx[6] FSize=256, StAddr=0x00000d00 >> [ 1.966456] dwc2 ff580000.usb: DPTx[7] FSize=0, StAddr=0x00000e00 >> [ 1.973317] dwc2 ff580000.usb: DPTx[8] FSize=0, StAddr=0x00000f00 >> [ 1.980180] dwc2 ff580000.usb: DPTx[9] FSize=256, StAddr=0x00000410 >> [ 1.987216] dwc2 ff580000.usb: ep0-in: EPCTL=0x00008800, >> SIZ=0x00000000, DMA=0x379a4f2d >> [ 1.996232] dwc2 ff580000.usb: ep0-out: EPCTL=0x00008000, >> SIZ=0x00000000, DMA=0xe3103c4f >> [ 2.005352] dwc2 ff580000.usb: ep1-in: EPCTL=0x00001000, >> SIZ=0x00000000, DMA=0x5cf9a35d >> [ 2.014369] dwc2 ff580000.usb: ep1-out: EPCTL=0x00000000, >> SIZ=0x00000000, DMA=0x8b00a168 >> [ 2.023482] dwc2 ff580000.usb: ep2-in: EPCTL=0x00000000, >> SIZ=0x00000000, DMA=0xfef360cf >> [ 2.032497] dwc2 ff580000.usb: ep2-out: EPCTL=0x00000000, >> SIZ=0x00000000, DMA=0x9f637bc4 >> [ 2.041609] dwc2 ff580000.usb: ep3-in: EPCTL=0x00002000, >> SIZ=0x00000000, DMA=0xf03470c5 >> [ 2.050625] dwc2 ff580000.usb: ep3-out: EPCTL=0x00000000, >> SIZ=0x00000000, DMA=0x8b00a168 >> [ 2.059715] dwc2 ff580000.usb: ep4-in: EPCTL=0x00000000, >> SIZ=0x00000000, DMA=0xfef360cf >> [ 2.068731] dwc2 ff580000.usb: ep4-out: EPCTL=0x00000000, >> SIZ=0x00000000, DMA=0xb6c8c271 >> [ 2.077843] dwc2 ff580000.usb: ep5-in: EPCTL=0x00003000, >> SIZ=0x00000000, DMA=0x84245611 >> [ 2.086858] dwc2 ff580000.usb: ep5-out: EPCTL=0x00000000, >> SIZ=0x00000000, DMA=0x8b00a168 >> [ 2.095970] dwc2 ff580000.usb: ep6-in: EPCTL=0x00000000, >> SIZ=0x00000000, DMA=0xfef360cf >> [ 2.104986] dwc2 ff580000.usb: ep6-out: EPCTL=0x00000000, >> SIZ=0x00000000, DMA=0x0a6c1c90 >> [ 2.114102] dwc2 ff580000.usb: ep7-in: EPCTL=0x00004000, >> SIZ=0x00000000, DMA=0xaccb75ec >> [ 2.123111] dwc2 ff580000.usb: ep7-out: EPCTL=0x00000000, >> SIZ=0x00000000, DMA=0x8b00a168 >> [ 2.132222] dwc2 ff580000.usb: ep8-in: EPCTL=0x00004800, >> SIZ=0x00000000, DMA=0x4625773c >> [ 2.141254] dwc2 ff580000.usb: ep8-out: EPCTL=0x00000000, >> SIZ=0x00000000, DMA=0x437c9154 >> [ 2.150371] dwc2 ff580000.usb: ep9-in: EPCTL=0x00005000, >> SIZ=0x00000000, DMA=0x9cb1c89c >> [ 2.159365] dwc2 ff580000.usb: ep9-out: EPCTL=0x00000000, >> SIZ=0x00000000, DMA=0x6ec79617 >> [ 2.168476] dwc2 ff580000.usb: DVBUSDIS=0x00000b8f, DVBUSPULSE=000002c6 >> [ 2.175996] usb 1-1: new high-speed USB device number 2 using dwc2 >> [ 2.176105] dwc2 ff580000.usb: DWC OTG Controller >> [ 2.176147] dwc2 ff580000.usb: new USB bus registered, assigned bus >> number 2 >> [ 2.176195] dwc2 ff580000.usb: irq 41, io mem 0xff580000 >> [ 2.176450] usb usb2: New USB device found, idVendor=1d6b, idProduct=0002 >> [ 2.176462] usb usb2: New USB device strings: Mfr=3, Product=2, >> SerialNumber=1 >> [ 2.176470] usb usb2: Product: DWC OTG Controller >> [ 2.176478] usb usb2: Manufacturer: Linux 4.10.0+ dwc2_hsotg >> [ 2.176485] usb usb2: SerialNumber: ff580000.usb >> [ 1147.035367] dwc2 ff580000.usb: bound driver g_audio >> [ 1147.041203] dwc2 ff580000.usb: dwc2_hsotg_pullup: is_on: 1 op_state: 3 >> [ 1147.041250] dwc2 ff580000.usb: dwc2_core_reset() >> [ 1147.041345] dwc2 ff580000.usb: FIFOs reset, timeout at 100 >> [ 1147.041405] dwc2 ff580000.usb: EP0: DIEPCTL0=0x00008000, >> DOEPCTL0=0x00008000 >> [ 1147.041447] dwc2 ff580000.usb: gsintmsk now 0xd08c3cc4 >> [ 1147.041554] dwc2 ff580000.usb: DCTL=0x00000002 >> [ 1147.041631] dwc2 ff580000.usb: dwc2_hsotg_enqueue_setup: queueing >> setup request >> [ 1147.041692] dwc2 ff580000.usb: ep0: req ee241680: 8 at ee241198, noi=0, >> zero=0, snok=0 >> [ 1147.041757] dwc2 ff580000.usb: dwc2_hsotg_start_req: >> DxEPCTL=0x80008000, ep 0, dir out >> [ 1147.041799] dwc2 ff580000.usb: ureq->length:8 ureq->actual:0 >> [ 1147.041896] dwc2 ff580000.usb: dwc2_hsotg_start_req: 1 at 8/8, >> 0x00080008 => 0x00000b10 >> [ 1147.041975] dwc2 ff580000.usb: dwc2_hsotg_start_req: 2e243000 pad => >> 0x00000b14 >> [ 1147.042014] dwc2 ff580000.usb: ep0 state:0 >> [ 1147.042055] dwc2 ff580000.usb: dwc2_hsotg_start_req: DxEPCTL=0x80008000 >> [ 1147.042097] dwc2 ff580000.usb: dwc2_hsotg_start_req: DXEPCTL=0x80008000 >> [ 1147.042169] dwc2 ff580000.usb: EP0: DIEPCTL0=0x00008000, >> DOEPCTL0=0x80008000 >> >> Thanks, >> Francesco >> >>> Thanks, >>> Vardan. >>> >> > > Seems here we have fifo configuration issue. We will follow up it and > provide feedback soon. > > If it is possible, can you please provide to us register dump after > driver loading. Sure, here is the dump before loading the gadget driver: GOTGCTL = 0x00010000 GOTGINT = 0x00000000 GAHBCFG = 0x0000002f GUSBCFG = 0x00001408 GRSTCTL = 0x80000000 GINTSTS = 0x04000030 GINTMSK = 0xd0000806 GRXSTSR = 0x00000000 GRXSTSP = 0x00000000 GRXFSIZ = 0x00000400 GNPTXFSIZ = 0x00100400 GNPTXSTS = 0x00080010 GI2CCTL = 0x00000000 GPVNDCTL = 0x00000000 GGPIO = 0x00000000 GUID = 0x32000001 GSNPSID = 0x4f54310a GHWCFG1 = 0x00006664 GHWCFG2 = 0x228e2450 GHWCFG3 = 0x03cc90e8 GHWCFG4 = 0xdbf04030 GLPMCFG = 0x00000000 GPWRDN = 0x00000000 GDFIFOCFG = 0x03cc0400 ADPCTL = 0x00000000 HPTXFSIZ = 0x00000000 DPTXFSIZN(1) = 0x01000410 DPTXFSIZN(2) = 0x01000900 DPTXFSIZN(3) = 0x01000a00 DPTXFSIZN(4) = 0x01000b00 DPTXFSIZN(5) = 0x01000c00 DPTXFSIZN(6) = 0x01000d00 DPTXFSIZN(7) = 0x00000e00 DPTXFSIZN(8) = 0x00000f00 DPTXFSIZN(9) = 0x01000410 DPTXFSIZN(10) = 0x01000900 DPTXFSIZN(11) = 0x01000a00 DPTXFSIZN(12) = 0x01000b00 DPTXFSIZN(13) = 0x01000c00 DPTXFSIZN(14) = 0x01000d00 DPTXFSIZN(15) = 0x00000e00 DCFG = 0x08100000 DCTL = 0x00000002 DSTS = 0x0007ff02 DIEPMSK = 0x00000000 DOEPMSK = 0x00000000 DAINT = 0x00000000 DAINTMSK = 0x00000000 DTKNQR1 = 0x00000000 DTKNQR2 = 0x00000000 DTKNQR3 = 0x0c100020 DTKNQR4 = 0x00000000 DVBUSDIS = 0x00000b8f DVBUSPULSE = 0x000002c6 DIEPCTL(0) = 0x00008800 DIEPCTL(1) = 0x00001000 DIEPCTL(2) = 0x00000000 DIEPCTL(3) = 0x00002000 DIEPCTL(4) = 0x00000000 DIEPCTL(5) = 0x00003000 DIEPCTL(6) = 0x00000000 DIEPCTL(7) = 0x00004000 DIEPCTL(8) = 0x00004800 DIEPCTL(9) = 0x00005000 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) = 0x379a4f6d DIEPDMA(1) = 0x5cc9a35d DIEPDMA(2) = 0xfef360cb DIEPDMA(3) = 0xf83470c5 DIEPDMA(4) = 0xfef360cb DIEPDMA(5) = 0xbc245623 DIEPDMA(6) = 0xfef360cb DIEPDMA(7) = 0xbdcb75ec DIEPDMA(8) = 0x46617f3e DIEPDMA(9) = 0x9cb1ca9c DIEPDMA(10) = 0xfef360cb DIEPDMA(11) = 0xfef360cb DIEPDMA(12) = 0xfef360cb DIEPDMA(13) = 0xfef360cb DIEPDMA(14) = 0xfef360cb DIEPDMA(15) = 0xfef360cb DOEPDMA(0) = 0xf3143c4f DOEPDMA(1) = 0x8b10a1e8 DOEPDMA(2) = 0x9f637bc4 DOEPDMA(3) = 0x8b10a1e8 DOEPDMA(4) = 0xb6c84231 DOEPDMA(5) = 0x8b10a1e8 DOEPDMA(6) = 0x126c1490 DOEPDMA(7) = 0x8b10a1e8 DOEPDMA(8) = 0x437c9154 DOEPDMA(9) = 0x6ec79607 DOEPDMA(10) = 0x8b10a1e8 DOEPDMA(11) = 0x8b10a1e8 DOEPDMA(12) = 0x8b10a1e8 DOEPDMA(13) = 0x8b10a1e8 DOEPDMA(14) = 0x8b10a1e8 DOEPDMA(15) = 0x8b10a1e8 DTXFSTS(0) = 0x00000010 DTXFSTS(1) = 0x00000010 DTXFSTS(2) = 0x00000010 DTXFSTS(3) = 0x00000010 DTXFSTS(4) = 0x00000010 DTXFSTS(5) = 0x00000010 DTXFSTS(6) = 0x00000010 DTXFSTS(7) = 0x00000010 DTXFSTS(8) = 0x00000010 DTXFSTS(9) = 0x00000010 DTXFSTS(10) = 0x00000010 DTXFSTS(11) = 0x00000010 DTXFSTS(12) = 0x00000010 DTXFSTS(13) = 0x00000010 DTXFSTS(14) = 0x00000010 DTXFSTS(15) = 0x00000010 PCGCTL = 0x00000000 HCFG = 0x00100000 HFIR = 0x00000b8f HFNUM = 0x00003fff HPTXSTS = 0x00080100 HAINT = 0x00000000 HAINTMSK = 0x00000000 HFLBADDR = 0x00000000 HPRT0 = 0x00000000 HCCHAR(0) = 0x00001000 HCCHAR(1) = 0x00004800 HCCHAR(2) = 0x00000000 HCCHAR(3) = 0x00004800 HCCHAR(4) = 0x00000000 HCCHAR(5) = 0x00004800 HCCHAR(6) = 0x00000000 HCCHAR(7) = 0x00004800 HCCHAR(8) = 0x00000000 HCCHAR(9) = 0x00000000 HCCHAR(10) = 0x00004800 HCCHAR(11) = 0x00004800 HCCHAR(12) = 0x00004800 HCCHAR(13) = 0x00004800 HCCHAR(14) = 0x00004800 HCCHAR(15) = 0x00004800 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) = 0xf3143c4f HCDMA(1) = 0x8b10a1e8 HCDMA(2) = 0x9f637bc4 HCDMA(3) = 0x8b10a1e8 HCDMA(4) = 0xb6c84231 HCDMA(5) = 0x8b10a1e8 HCDMA(6) = 0x126c1490 HCDMA(7) = 0x8b10a1e8 HCDMA(8) = 0x437c9154 HCDMA(9) = 0x6ec79607 HCDMA(10) = 0x8b10a1e8 HCDMA(11) = 0x8b10a1e8 HCDMA(12) = 0x8b10a1e8 HCDMA(13) = 0x8b10a1e8 HCDMA(14) = 0x8b10a1e8 HCDMA(15) = 0x8b10a1e8 HCDMAB(0) = 0x8b10a1e8 HCDMAB(1) = 0x8b10a1e8 HCDMAB(2) = 0x8b10a1e8 HCDMAB(3) = 0x8b10a1e8 HCDMAB(4) = 0x8b10a1e8 HCDMAB(5) = 0x8b10a1e8 HCDMAB(6) = 0x8b10a1e8 HCDMAB(7) = 0x8b10a1e8 HCDMAB(8) = 0x8b10a1e8 HCDMAB(9) = 0x8b10a1e8 HCDMAB(10) = 0x8b10a1e8 HCDMAB(11) = 0x8b10a1e8 HCDMAB(12) = 0x8b10a1e8 HCDMAB(13) = 0x8b10a1e8 HCDMAB(14) = 0x8b10a1e8 HCDMAB(15) = 0x8b10a1e8 and here is the dump after loading the gadget driver: GOTGCTL = 0x00010000 GOTGINT = 0x00000000 GAHBCFG = 0x00000027 GUSBCFG = 0x0000140f GRSTCTL = 0x80000400 GINTSTS = 0x04008020 GINTMSK = 0xd08c3cc4 GRXSTSR = 0x00000000 GRXSTSP = 0x00000000 GRXFSIZ = 0x00000113 GNPTXFSIZ = 0x00100113 GNPTXSTS = 0x00080010 GI2CCTL = 0x00000000 GPVNDCTL = 0x00000000 GGPIO = 0x00000000 GUID = 0x32000001 GSNPSID = 0x4f54310a GHWCFG1 = 0x00006664 GHWCFG2 = 0x228e2450 GHWCFG3 = 0x03cc90e8 GHWCFG4 = 0xdbf04030 GLPMCFG = 0x00000000 GPWRDN = 0x00000000 GDFIFOCFG = 0x039303cc ADPCTL = 0x00000000 HPTXFSIZ = 0x00000000 DPTXFSIZN(1) = 0x00680123 DPTXFSIZN(2) = 0x0068018b DPTXFSIZN(3) = 0x006801f3 DPTXFSIZN(4) = 0x0068025b DPTXFSIZN(5) = 0x006802c3 DPTXFSIZN(6) = 0x0068032b DPTXFSIZN(7) = 0x000003f3 DPTXFSIZN(8) = 0x0000037b DPTXFSIZN(9) = 0x00680123 DPTXFSIZN(10) = 0x0068018b DPTXFSIZN(11) = 0x006801f3 DPTXFSIZN(12) = 0x0068025b DPTXFSIZN(13) = 0x006802c3 DPTXFSIZN(14) = 0x0068032b DPTXFSIZN(15) = 0x000003f3 DCFG = 0x00840000 DCTL = 0x00000000 DSTS = 0x00000002 DIEPMSK = 0x0000000f DOEPMSK = 0x0000022f DAINT = 0x00000000 DAINTMSK = 0x00010001 DTKNQR1 = 0x00000000 DTKNQR2 = 0x00000000 DTKNQR3 = 0x0c100020 DTKNQR4 = 0x00000000 DVBUSDIS = 0x00000b8f DVBUSPULSE = 0x000002c6 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) = 0x80008000 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) = 0x20080008 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) = 0xb616a434 DIEPDMA(1) = 0x1def4eb6 DIEPDMA(2) = 0xbdcb75ec DIEPDMA(3) = 0xd55e9df3 DIEPDMA(4) = 0xbdcb75ec DIEPDMA(5) = 0x026813f5 DIEPDMA(6) = 0xbdcb75ec DIEPDMA(7) = 0xc10f8789 DIEPDMA(8) = 0xb0f82040 DIEPDMA(9) = 0xcbf8ce30 DIEPDMA(10) = 0xbdcb75ec DIEPDMA(11) = 0xbdcb75ec DIEPDMA(12) = 0xbdcb75ec DIEPDMA(13) = 0xbdcb75ec DIEPDMA(14) = 0xbdcb75ec DIEPDMA(15) = 0xbdcb75ec DOEPDMA(0) = 0xff43819d DOEPDMA(1) = 0x5afb2109 DOEPDMA(2) = 0x074e8688 DOEPDMA(3) = 0x5afb2109 DOEPDMA(4) = 0xe7952f76 DOEPDMA(5) = 0x5afb2109 DOEPDMA(6) = 0x19c23309 DOEPDMA(7) = 0x5afb2109 DOEPDMA(8) = 0x1a1bb42e DOEPDMA(9) = 0xcd2257a4 DOEPDMA(10) = 0x5afb2109 DOEPDMA(11) = 0x5afb2109 DOEPDMA(12) = 0x5afb2109 DOEPDMA(13) = 0x5afb2109 DOEPDMA(14) = 0x5afb2109 DOEPDMA(15) = 0x5afb2109 DTXFSTS(0) = 0x00000010 DTXFSTS(1) = 0x00000010 DTXFSTS(2) = 0x00000010 DTXFSTS(3) = 0x00000010 DTXFSTS(4) = 0x00000010 DTXFSTS(5) = 0x00000010 DTXFSTS(6) = 0x00000010 DTXFSTS(7) = 0x00000010 DTXFSTS(8) = 0x00000010 DTXFSTS(9) = 0x00000010 DTXFSTS(10) = 0x00000010 DTXFSTS(11) = 0x00000010 DTXFSTS(12) = 0x00000010 DTXFSTS(13) = 0x00000010 DTXFSTS(14) = 0x00000010 DTXFSTS(15) = 0x00000010 PCGCTL = 0x00000000 HCFG = 0x00840000 HFIR = 0x00000b8f HFNUM = 0x4ebd0000 HPTXSTS = 0x00080068 HAINT = 0x00000000 HAINTMSK = 0x00000001 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) = 0x0000000f 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) = 0xff43819d HCDMA(1) = 0x5afb2109 HCDMA(2) = 0x074e8688 HCDMA(3) = 0x5afb2109 HCDMA(4) = 0xe7952f76 HCDMA(5) = 0x5afb2109 HCDMA(6) = 0x19c23309 HCDMA(7) = 0x5afb2109 HCDMA(8) = 0x1a1bb42e HCDMA(9) = 0xcd2257a4 HCDMA(10) = 0x5afb2109 HCDMA(11) = 0x5afb2109 HCDMA(12) = 0x5afb2109 HCDMA(13) = 0x5afb2109 HCDMA(14) = 0x5afb2109 HCDMA(15) = 0x5afb2109 HCDMAB(0) = 0x4d39126c HCDMAB(1) = 0xdd37f8a2 HCDMAB(2) = 0x14b9118c HCDMAB(3) = 0xdd37f8a2 HCDMAB(4) = 0x5d5bff79 HCDMAB(5) = 0xdd37f8a2 HCDMAB(6) = 0x01144f4d HCDMAB(7) = 0xdd37f8a2 HCDMAB(8) = 0x8b35ac87 HCDMAB(9) = 0x28a47b1b HCDMAB(10) = 0xdd37f8a2 HCDMAB(11) = 0xdd37f8a2 HCDMAB(12) = 0xdd37f8a2 HCDMAB(13) = 0xdd37f8a2 HCDMAB(14) = 0xdd37f8a2 HCDMAB(15) = 0xdd37f8a2 When I plug a USB host into the OTG port, GINTSTS changes from 0x04008020 to 0x04008022, while the other registers remain unchanged (except HFNUM). It may be worth noting that when I request a register dump for the first time, I get two interrupts from the controller, both of which say: [ 23.081525] dwc2 ff580000.usb: gintsts=04000032 gintmsk=d0000806 [ 23.081568] dwc2 ff580000.usb: Mode Mismatch Interrupt: currently in Device mode [ 23.089908] dwc2 ff580000.usb: dwc2_hsotg_irq: 04000030 00000000 (d0000806) retry 8 Thanks, Francesco
