DWC2 USB Host Mode Lockup 4.11

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Hi

I am currently seeing a error with the designware driver on
Intel/Altera ARM Cortex A9 Cyclone SOC V Hardware. The USB PHY is a
TUSB1210 without a hw reset line connected. The error only occurs on
plugging in of the device in host mode. Once the USB device is
enumerated i have not seen any errors. Ocassionally i get an error
that the USB Device is no longer enumerated. Even a reboot does not
help to recover to normal operation. This points IMHO to the PHY as
source of problem as all other components are getting a hw reset on
reboot. I have not worked with USB on a driver level so my knowledge
is a little thin. Nevertheless i tried to pin down the problem. I have
added the patch below to the 4.11 kernel. The observation is that when
the error has not been hit i see lots of "dwc2: STATUS EINPROGRESS"
messages. Which means the bug_on statement i added is not hit on
normal operation.

The usb hw-schematic looks like this:
https://rocketboards.org/foswiki/pub/Documentation/EBVSoCratesEvaluationBoard/SoCrates-Schematic.pdf

So my take is that for some reason the communication between PHY
and controller is broken in a way that either no request gets send to
the PHY or that the PHY is sending no reply.

Any idea how i can get this USB port back to normal operation?

Attached below is the patch which i added to produce the two output
dumps further below. The first output dump is the seldom error case,
the second is the success case.

Best regards
Tim

diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index a73722e27d07..1c18104e432f 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -38,6 +38,8 @@
  * This file contains the core HCD code, and implements the Linux hc_driver
  * API
  */
+#define DEBUG
+
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/spinlock.h>
@@ -4663,6 +4665,7 @@ static int _dwc2_hcd_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
        dwc2_urb->flags = tflags;
        dwc2_urb->interval = urb->interval;
        dwc2_urb->status = -EINPROGRESS;
+       printk("dwc2: STATUS EINPROGRESS\n");
 
        for (i = 0; i < urb->number_of_packets; ++i)
                dwc2_hcd_urb_set_iso_desc_params(dwc2_urb, i,
@@ -4773,6 +4776,7 @@ static int _dwc2_hcd_urb_dequeue(struct usb_hcd *hcd, struct urb *urb,
 
        dev_dbg(hsotg->dev, "Called usb_hcd_giveback_urb()\n");
        dev_dbg(hsotg->dev, "  urb->status = %d\n", urb->status);
+       BUG_ON(urb->status <0);
 out:
        spin_unlock_irqrestore(&hsotg->lock, flags);

Here is the output in the error case:
[   11.245681] usbcore: registered new interface driver usbfs
[   11.254272] usbcore: registered new interface driver hub
[   11.262479] usbcore: registered new device driver usb
[   11.346143] dwc2 ffb00000.usb: mapped PA ffb00000 to VA 91550000
[   11.346236] dwc2 ffb00000.usb: Looking up vusb_d-supply from device tree
[   11.346254] dwc2 ffb00000.usb: Looking up vusb_d-supply property in node /soc/usb@ffb00000 failed
[   11.346273] dwc2 ffb00000.usb: ffb00000.usb supply vusb_d not found, using dummy regulator
[   11.354882] dwc2 ffb00000.usb: Looking up vusb_a-supply from device tree
[   11.354897] dwc2 ffb00000.usb: Looking up vusb_a-supply property in node /soc/usb@ffb00000 failed
[   11.354909] dwc2 ffb00000.usb: ffb00000.usb supply vusb_a not found, using dummy regulator
[   11.363660] dwc2 ffb00000.usb: registering common handler for irq43
[   11.363848] dwc2 ffb00000.usb: Forcing mode to host
[   11.363868] dwc2 ffb00000.usb: Core Release: 2.93a (snpsid=4f54293a)
[   11.363882] dwc2 ffb00000.usb: Forcing mode to host
[   11.363909] dwc2 ffb00000.usb: DWC OTG HCD INIT
[   11.363921] dwc2 ffb00000.usb: hcfg=00000200
[   11.363950] dwc2 ffb00000.usb: dwc2_core_init(8481e010)
[   11.363962] dwc2 ffb00000.usb: HS ULPI PHY selected
[   11.363974] dwc2 ffb00000.usb: Internal DMA Mode
[   11.363987] dwc2 ffb00000.usb: host_dma:1 dma_desc_enable:1
[   11.363998] dwc2 ffb00000.usb: Using Descriptor DMA mode
[   11.364010] dwc2 ffb00000.usb: Host Mode
[   11.375756] dwc2 ffb00000.usb: DWC OTG Controller
[   11.380596] dwc2 ffb00000.usb: new USB bus registered, assigned bus number 1
[   11.387883] dwc2 ffb00000.usb: irq 43, io mem 0xffb00000
[   11.393368] dwc2 ffb00000.usb: DWC OTG HCD START
[   11.393389] dwc2 ffb00000.usb: dwc2_core_host_init(8481e010)
[   11.393403] dwc2 ffb00000.usb: Initializing HCFG.FSLSPClkSel to 00000000
[   11.393417] dwc2 ffb00000.usb: initial grxfsiz=00002000
[   11.393429] dwc2 ffb00000.usb: new grxfsiz=00000200
[   11.393441] dwc2 ffb00000.usb: initial gnptxfsiz=20002000
[   11.393454] dwc2 ffb00000.usb: new gnptxfsiz=02000200
[   11.393465] dwc2 ffb00000.usb: initial hptxfsiz=20004000
[   11.393477] dwc2 ffb00000.usb: new hptxfsiz=02000400
[   11.393495] dwc2 ffb00000.usb: Init: Port Power? op_state=9
[   11.393502] dwc2 ffb00000.usb: Init: Power Port (0)
[   11.393508] dwc2 ffb00000.usb: dwc2_enable_host_interrupts()
[   11.393519] dwc2 ffb00000.usb: DWC OTG HCD Has Root Hub
[   11.393979] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[   11.400827] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   11.408216] usb usb1: Product: DWC OTG Controller
[   11.418149] usb usb1: Manufacturer: Linux 4.11.0-gf5a125f99139-dirty dwc2_hsotg
[   11.425687] usb usb1: SerialNumber: ffb00000.usb
[   11.432340] dwc2 ffb00000.usb: DWC OTG HCD EP RESET: bEndpointAddress=0x81
[   11.433268] hub 1-0:1.0: USB hub found
[   11.437111] dwc2 ffb00000.usb: GetHubDescriptor
[   11.437162] hub 1-0:1.0: 1 port detected
[   11.441338] dwc2 ffb00000.usb: GetHubStatus
[   11.441430] dwc2 ffb00000.usb: SetPortFeature
[   11.441813] dwc2 ffb00000.usb: 
[   11.441824] dwc2 ffb00000.usb: ************************************************************
[   11.441831] dwc2 ffb00000.usb: HCD State:
[   11.441839] dwc2 ffb00000.usb:   Num channels: 8
[   11.441846] dwc2 ffb00000.usb:   Channel 0:
[   11.441855] dwc2 ffb00000.usb:     dev_addr: 0, ep_num: 0, ep_is_in: 0
[   11.441861] dwc2 ffb00000.usb:     speed: 0
[   11.441868] dwc2 ffb00000.usb:     ep_type: 0
[   11.441875] dwc2 ffb00000.usb:     max_packet: 0
[   11.441882] dwc2 ffb00000.usb:     data_pid_start: 0
[   11.441889] dwc2 ffb00000.usb:     multi_count: 0
[   11.441895] dwc2 ffb00000.usb:     xfer_started: 0
[   11.441903] dwc2 ffb00000.usb:     xfer_buf:   (null)
[   11.441910] dwc2 ffb00000.usb:     xfer_dma: 00000000
[   11.441917] dwc2 ffb00000.usb:     xfer_len: 0
[   11.441924] dwc2 ffb00000.usb:     xfer_count: 0
[   11.441931] dwc2 ffb00000.usb:     halt_on_queue: 0
[   11.441938] dwc2 ffb00000.usb:     halt_pending: 0
[   11.441944] dwc2 ffb00000.usb:     halt_status: 0
[   11.441957] dwc2 ffb00000.usb:     do_split: 0
[   11.441963] dwc2 ffb00000.usb:     complete_split: 0
[   11.441970] dwc2 ffb00000.usb:     hub_addr: 0
[   11.441976] dwc2 ffb00000.usb:     hub_port: 0
[   11.441983] dwc2 ffb00000.usb:     xact_pos: 0
[   11.441989] dwc2 ffb00000.usb:     requests: 0
[   11.441996] dwc2 ffb00000.usb:     qh:   (null)
[   11.442003] dwc2 ffb00000.usb:   Channel 1:
[   11.442011] dwc2 ffb00000.usb:     dev_addr: 0, ep_num: 0, ep_is_in: 0
[   11.442017] dwc2 ffb00000.usb:     speed: 0
[   11.442024] dwc2 ffb00000.usb:     ep_type: 0
[   11.442030] dwc2 ffb00000.usb:     max_packet: 0
[   11.442037] dwc2 ffb00000.usb:     data_pid_start: 0
[   11.442043] dwc2 ffb00000.usb:     multi_count: 0
[   11.442050] dwc2 ffb00000.usb:     xfer_started: 0
[   11.442056] dwc2 ffb00000.usb:     xfer_buf:   (null)
[   11.442063] dwc2 ffb00000.usb:     xfer_dma: 00000000
[   11.442071] dwc2 ffb00000.usb:     xfer_len: 0
[   11.442077] dwc2 ffb00000.usb:     xfer_count: 0
[   11.442083] dwc2 ffb00000.usb:     halt_on_queue: 0
[   11.442090] dwc2 ffb00000.usb:     halt_pending: 0
[   11.442096] dwc2 ffb00000.usb:     halt_status: 0
[   11.442103] dwc2 ffb00000.usb:     do_split: 0
[   11.442109] dwc2 ffb00000.usb:     complete_split: 0
[   11.442116] dwc2 ffb00000.usb:     hub_addr: 0
[   11.442122] dwc2 ffb00000.usb:     hub_port: 0
[   11.442129] dwc2 ffb00000.usb:     xact_pos: 0
[   11.442135] dwc2 ffb00000.usb:     requests: 0
[   11.442142] dwc2 ffb00000.usb:     qh:   (null)
[   11.442148] dwc2 ffb00000.usb:   Channel 2:
[   11.442156] dwc2 ffb00000.usb:     dev_addr: 0, ep_num: 0, ep_is_in: 0
[   11.442163] dwc2 ffb00000.usb:     speed: 0
[   11.442169] dwc2 ffb00000.usb:     ep_type: 0
[   11.442175] dwc2 ffb00000.usb:     max_packet: 0
[   11.442182] dwc2 ffb00000.usb:     data_pid_start: 0
[   11.442189] dwc2 ffb00000.usb:     multi_count: 0
[   11.442195] dwc2 ffb00000.usb:     xfer_started: 0
[   11.442202] dwc2 ffb00000.usb:     xfer_buf:   (null)
[   11.442209] dwc2 ffb00000.usb:     xfer_dma: 00000000
[   11.442215] dwc2 ffb00000.usb:     xfer_len: 0
[   11.442222] dwc2 ffb00000.usb:     xfer_count: 0
[   11.442228] dwc2 ffb00000.usb:     halt_on_queue: 0
[   11.442235] dwc2 ffb00000.usb:     halt_pending: 0
[   11.442241] dwc2 ffb00000.usb:     halt_status: 0
[   11.442247] dwc2 ffb00000.usb:     do_split: 0
[   11.442254] dwc2 ffb00000.usb:     complete_split: 0
[   11.442260] dwc2 ffb00000.usb:     hub_addr: 0
[   11.442267] dwc2 ffb00000.usb:     hub_port: 0
[   11.442273] dwc2 ffb00000.usb:     xact_pos: 0
[   11.442280] dwc2 ffb00000.usb:     requests: 0
[   11.442286] dwc2 ffb00000.usb:     qh:   (null)
[   11.442292] dwc2 ffb00000.usb:   Channel 3:
[   11.442300] dwc2 ffb00000.usb:     dev_addr: 0, ep_num: 0, ep_is_in: 0
[   11.442307] dwc2 ffb00000.usb:     speed: 0
[   11.442313] dwc2 ffb00000.usb:     ep_type: 0
[   11.442319] dwc2 ffb00000.usb:     max_packet: 0
[   11.442326] dwc2 ffb00000.usb:     data_pid_start: 0
[   11.442332] dwc2 ffb00000.usb:     multi_count: 0
[   11.442339] dwc2 ffb00000.usb:     xfer_started: 0
[   11.442345] dwc2 ffb00000.usb:     xfer_buf:   (null)
[   11.442352] dwc2 ffb00000.usb:     xfer_dma: 00000000
[   11.442358] dwc2 ffb00000.usb:     xfer_len: 0
[   11.442365] dwc2 ffb00000.usb:     xfer_count: 0
[   11.442371] dwc2 ffb00000.usb:     halt_on_queue: 0
[   11.442378] dwc2 ffb00000.usb:     halt_pending: 0
[   11.442384] dwc2 ffb00000.usb:     halt_status: 0
[   11.442391] dwc2 ffb00000.usb:     do_split: 0
[   11.442397] dwc2 ffb00000.usb:     complete_split: 0
[   11.442403] dwc2 ffb00000.usb:     hub_addr: 0
[   11.442410] dwc2 ffb00000.usb:     hub_port: 0
[   11.442416] dwc2 ffb00000.usb:     xact_pos: 0
[   11.442423] dwc2 ffb00000.usb:     requests: 0
[   11.442430] dwc2 ffb00000.usb:     qh:   (null)
[   11.442436] dwc2 ffb00000.usb:   Channel 4:
[   11.442444] dwc2 ffb00000.usb:     dev_addr: 0, ep_num: 0, ep_is_in: 0
[   11.442450] dwc2 ffb00000.usb:     speed: 0
[   11.442457] dwc2 ffb00000.usb:     ep_type: 0
[   11.442463] dwc2 ffb00000.usb:     max_packet: 0
[   11.442470] dwc2 ffb00000.usb:     data_pid_start: 0
[   11.442476] dwc2 ffb00000.usb:     multi_count: 0
[   11.442483] dwc2 ffb00000.usb:     xfer_started: 0
[   11.442489] dwc2 ffb00000.usb:     xfer_buf:   (null)
[   11.443985] dwc2 ffb00000.usb:     xfer_dma: 00000000
[   11.443994] dwc2 ffb00000.usb:     xfer_len: 0
[   11.444001] dwc2 ffb00000.usb:     xfer_count: 0
[   11.444008] dwc2 ffb00000.usb:     halt_on_queue: 0
[   11.444015] dwc2 ffb00000.usb:     halt_pending: 0
[   11.444021] dwc2 ffb00000.usb:     halt_status: 0
[   11.444028] dwc2 ffb00000.usb:     do_split: 0
[   11.444035] dwc2 ffb00000.usb:     complete_split: 0
[   11.444042] dwc2 ffb00000.usb:     hub_addr: 0
[   11.444048] dwc2 ffb00000.usb:     hub_port: 0
[   11.444055] dwc2 ffb00000.usb:     xact_pos: 0
[   11.444061] dwc2 ffb00000.usb:     requests: 0
[   11.444069] dwc2 ffb00000.usb:     qh:   (null)
[   11.444076] dwc2 ffb00000.usb:   Channel 5:
[   11.444084] dwc2 ffb00000.usb:     dev_addr: 0, ep_num: 0, ep_is_in: 0
[   11.444091] dwc2 ffb00000.usb:     speed: 0
[   11.444098] dwc2 ffb00000.usb:     ep_type: 0
[   11.444104] dwc2 ffb00000.usb:     max_packet: 0
[   11.444111] dwc2 ffb00000.usb:     data_pid_start: 0
[   11.444118] dwc2 ffb00000.usb:     multi_count: 0
[   11.444130] dwc2 ffb00000.usb:     xfer_started: 0
[   11.444137] dwc2 ffb00000.usb:     xfer_buf:   (null)
[   11.444145] dwc2 ffb00000.usb:     xfer_dma: 00000000
[   11.444152] dwc2 ffb00000.usb:     xfer_len: 0
[   11.444159] dwc2 ffb00000.usb:     xfer_count: 0
[   11.444165] dwc2 ffb00000.usb:     halt_on_queue: 0
[   11.444172] dwc2 ffb00000.usb:     halt_pending: 0
[   11.444179] dwc2 ffb00000.usb:     halt_status: 0
[   11.444185] dwc2 ffb00000.usb:     do_split: 0
[   11.444192] dwc2 ffb00000.usb:     complete_split: 0
[   11.444198] dwc2 ffb00000.usb:     hub_addr: 0
[   11.444205] dwc2 ffb00000.usb:     hub_port: 0
[   11.444211] dwc2 ffb00000.usb:     xact_pos: 0
[   11.444217] dwc2 ffb00000.usb:     requests: 0
[   11.444224] dwc2 ffb00000.usb:     qh:   (null)
[   11.444231] dwc2 ffb00000.usb:   Channel 6:
[   11.444239] dwc2 ffb00000.usb:     dev_addr: 0, ep_num: 0, ep_is_in: 0
[   11.444245] dwc2 ffb00000.usb:     speed: 0
[   11.444252] dwc2 ffb00000.usb:     ep_type: 0
[   11.444258] dwc2 ffb00000.usb:     max_packet: 0
[   11.444264] dwc2 ffb00000.usb:     data_pid_start: 0
[   11.444271] dwc2 ffb00000.usb:     multi_count: 0
[   11.444277] dwc2 ffb00000.usb:     xfer_started: 0
[   11.444284] dwc2 ffb00000.usb:     xfer_buf:   (null)
[   11.444291] dwc2 ffb00000.usb:     xfer_dma: 00000000
[   11.444298] dwc2 ffb00000.usb:     xfer_len: 0
[   11.444304] dwc2 ffb00000.usb:     xfer_count: 0
[   11.444311] dwc2 ffb00000.usb:     halt_on_queue: 0
[   11.444317] dwc2 ffb00000.usb:     halt_pending: 0
[   11.444324] dwc2 ffb00000.usb:     halt_status: 0
[   11.444330] dwc2 ffb00000.usb:     do_split: 0
[   11.444337] dwc2 ffb00000.usb:     complete_split: 0
[   11.444343] dwc2 ffb00000.usb:     hub_addr: 0
[   11.444350] dwc2 ffb00000.usb:     hub_port: 0
[   11.444356] dwc2 ffb00000.usb:     xact_pos: 0
[   11.444363] dwc2 ffb00000.usb:     requests: 0
[   11.444369] dwc2 ffb00000.usb:     qh:   (null)
[   11.444376] dwc2 ffb00000.usb:   Channel 7:
[   11.444384] dwc2 ffb00000.usb:     dev_addr: 0, ep_num: 0, ep_is_in: 0
[   11.444390] dwc2 ffb00000.usb:     speed: 0
[   11.444397] dwc2 ffb00000.usb:     ep_type: 0
[   11.444403] dwc2 ffb00000.usb:     max_packet: 0
[   11.444410] dwc2 ffb00000.usb:     data_pid_start: 0
[   11.444416] dwc2 ffb00000.usb:     multi_count: 0
[   11.444423] dwc2 ffb00000.usb:     xfer_started: 0
[   11.444429] dwc2 ffb00000.usb:     xfer_buf:   (null)
[   11.444436] dwc2 ffb00000.usb:     xfer_dma: 00000000
[   11.444444] dwc2 ffb00000.usb:     xfer_len: 0
[   11.444451] dwc2 ffb00000.usb:     xfer_count: 0
[   11.444457] dwc2 ffb00000.usb:     halt_on_queue: 0
[   11.444464] dwc2 ffb00000.usb:     halt_pending: 0
[   11.444471] dwc2 ffb00000.usb:     halt_status: 0
[   11.444477] dwc2 ffb00000.usb:     do_split: 0
[   11.444483] dwc2 ffb00000.usb:     complete_split: 0
[   11.444490] dwc2 ffb00000.usb:     hub_addr: 0
[   11.445587] dwc2 ffb00000.usb:     hub_port: 0
[   11.445595] dwc2 ffb00000.usb:     xact_pos: 0
[   11.445602] dwc2 ffb00000.usb:     requests: 0
[   11.445610] dwc2 ffb00000.usb:     qh:   (null)
[   11.445618] dwc2 ffb00000.usb:   non_periodic_channels: 0
[   11.445625] dwc2 ffb00000.usb:   periodic_channels: 0
[   11.445632] dwc2 ffb00000.usb:   periodic_usecs: 0
[   11.445640] dwc2 ffb00000.usb:   NP Tx Req Queue Space Avail: 8
[   11.445647] dwc2 ffb00000.usb:   NP Tx FIFO Space Avail: 512
[   11.445654] dwc2 ffb00000.usb:   P Tx Req Queue Space Avail: 16
[   11.445661] dwc2 ffb00000.usb:   P Tx FIFO Space Avail: 512
[   11.445668] dwc2 ffb00000.usb: Core Global Registers
[   11.445677] dwc2 ffb00000.usb: GOTGCTL        @0x91550000 : 0x002C0000
[   11.445685] dwc2 ffb00000.usb: GOTGINT        @0x91550004 : 0x00000000
[   11.445693] dwc2 ffb00000.usb: GAHBCFG        @0x91550008 : 0x0000002E
[   11.445701] dwc2 ffb00000.usb: GUSBCFG        @0x9155000C : 0x20101410
[   11.445709] dwc2 ffb00000.usb: GRSTCTL        @0x91550010 : 0x80000000
[   11.445717] dwc2 ffb00000.usb: GINTSTS        @0x91550014 : 0x05000021
[   11.445725] dwc2 ffb00000.usb: GINTMSK        @0x91550018 : 0xF3000806
[   11.445733] dwc2 ffb00000.usb: GRXSTSR        @0x9155001C : 0x00000000
[   11.445740] dwc2 ffb00000.usb: GRXFSIZ        @0x91550024 : 0x00000200
[   11.445748] dwc2 ffb00000.usb: GNPTXFSIZ      @0x91550028 : 0x02000200
[   11.445756] dwc2 ffb00000.usb: GNPTXSTS       @0x9155002C : 0x00080200
[   11.445765] dwc2 ffb00000.usb: GI2CCTL        @0x91550030 : 0x00000000
[   11.445772] dwc2 ffb00000.usb: GPVNDCTL       @0x91550034 : 0x00000000
[   11.445780] dwc2 ffb00000.usb: GGPIO  @0x91550038 : 0x00000000
[   11.445788] dwc2 ffb00000.usb: GUID   @0x9155003C : 0x12345678
[   11.445796] dwc2 ffb00000.usb: GSNPSID        @0x91550040 : 0x4F54293A
[   11.445804] dwc2 ffb00000.usb: GHWCFG1        @0x91550044 : 0x00000000
[   11.445812] dwc2 ffb00000.usb: GHWCFG2        @0x91550048 : 0x238FFC90
[   11.445820] dwc2 ffb00000.usb: GHWCFG3        @0x9155004C : 0x1F8002E8
[   11.445828] dwc2 ffb00000.usb: GHWCFG4        @0x91550050 : 0xFE0F0020
[   11.445836] dwc2 ffb00000.usb: GLPMCFG        @0x91550054 : 0x00000000
[   11.445843] dwc2 ffb00000.usb: GPWRDN         @0x91550058 : 0x00000000
[   11.445852] dwc2 ffb00000.usb: GDFIFOCFG      @0x9155005C : 0x06002000
[   11.445860] dwc2 ffb00000.usb: HPTXFSIZ       @0x91550100 : 0x02000400
[   11.445867] dwc2 ffb00000.usb: PCGCTL         @0x91550E00 : 0x00000000
[   11.445874] dwc2 ffb00000.usb: Host Global Registers
[   11.445882] dwc2 ffb00000.usb: HCFG   @0x91550400 : 0x00800200
[   11.445890] dwc2 ffb00000.usb: HFIR   @0x91550404 : 0x0000EA60
[   11.445898] dwc2 ffb00000.usb: HFNUM  @0x91550408 : 0xEA603FFF
[   11.445906] dwc2 ffb00000.usb: HPTXSTS        @0x91550410 : 0x00100200
[   11.445914] dwc2 ffb00000.usb: HAINT  @0x91550414 : 0x00000000
[   11.445922] dwc2 ffb00000.usb: HAINTMSK       @0x91550418 : 0x00000000
[   11.445930] dwc2 ffb00000.usb: HFLBADDR @0x9155041C : 0x00000000
[   11.445938] dwc2 ffb00000.usb: HPRT0  @0x91550440 : 0x00021403
[   11.445945] dwc2 ffb00000.usb: Host Channel 0 Specific Registers
[   11.445952] dwc2 ffb00000.usb: HCCHAR         @0x91550500 : 0x00000000
[   11.445960] dwc2 ffb00000.usb: HCSPLT         @0x91550504 : 0x00000000
[   11.445968] dwc2 ffb00000.usb: HCINT  @0x91550508 : 0x00000000
[   11.445975] dwc2 ffb00000.usb: HCINTMSK       @0x9155050C : 0x00000000
[   11.445983] dwc2 ffb00000.usb: HCTSIZ         @0x91550510 : 0x00000000
[   11.445991] dwc2 ffb00000.usb: HCDMA  @0x91550514 : 0x07340000
[   11.445999] dwc2 ffb00000.usb: HCDMAB         @0x9155051C : 0x00CD0F88
[   11.446006] dwc2 ffb00000.usb: Host Channel 1 Specific Registers
[   11.446013] dwc2 ffb00000.usb: HCCHAR         @0x91550520 : 0x00000000
[   11.446021] dwc2 ffb00000.usb: HCSPLT         @0x91550524 : 0x00000000
[   11.446028] dwc2 ffb00000.usb: HCINT  @0x91550528 : 0x00000000
[   11.446036] dwc2 ffb00000.usb: HCINTMSK       @0x9155052C : 0x00000000
[   11.446044] dwc2 ffb00000.usb: HCTSIZ         @0x91550530 : 0x00000000
[   11.446051] dwc2 ffb00000.usb: HCDMA  @0x91550534 : 0x07172400
[   11.446059] dwc2 ffb00000.usb: HCDMAB         @0x9155053C : 0x0805100D
[   11.446066] dwc2 ffb00000.usb: Host Channel 2 Specific Registers
[   11.446073] dwc2 ffb00000.usb: HCCHAR         @0x91550540 : 0x00000000
[   11.446081] dwc2 ffb00000.usb: HCSPLT         @0x91550544 : 0x00000000
[   11.446089] dwc2 ffb00000.usb: HCINT  @0x91550548 : 0x00000000
[   11.446096] dwc2 ffb00000.usb: HCINTMSK       @0x9155054C : 0x00000000
[   11.446104] dwc2 ffb00000.usb: HCTSIZ         @0x91550550 : 0x00000000
[   11.446112] dwc2 ffb00000.usb: HCDMA  @0x91550554 : 0x07172200
[   11.446119] dwc2 ffb00000.usb: HCDMAB         @0x9155055C : 0x0805101F
[   11.446126] dwc2 ffb00000.usb: Host Channel 3 Specific Registers
[   11.446134] dwc2 ffb00000.usb: HCCHAR         @0x91550560 : 0x00000000
[   11.446141] dwc2 ffb00000.usb: HCSPLT         @0x91550564 : 0x00000000
[   11.446149] dwc2 ffb00000.usb: HCINT  @0x91550568 : 0x00000000
[   11.446156] dwc2 ffb00000.usb: HCINTMSK       @0x9155056C : 0x00000000
[   11.446164] dwc2 ffb00000.usb: HCTSIZ         @0x91550570 : 0x00000000
[   11.446172] dwc2 ffb00000.usb: HCDMA  @0x91550574 : 0x07172400
[   11.446179] dwc2 ffb00000.usb: HCDMAB         @0x9155057C : 0x0805100D
[   11.446187] dwc2 ffb00000.usb: Host Channel 4 Specific Registers
[   11.446194] dwc2 ffb00000.usb: HCCHAR         @0x91550580 : 0x00000000
[   11.446202] dwc2 ffb00000.usb: HCSPLT         @0x91550584 : 0x00000000
[   11.446209] dwc2 ffb00000.usb: HCINT  @0x91550588 : 0x00000000
[   11.446217] dwc2 ffb00000.usb: HCINTMSK       @0x9155058C : 0x00000000
[   11.446225] dwc2 ffb00000.usb: HCTSIZ         @0x91550590 : 0x00000000
[   11.446232] dwc2 ffb00000.usb: HCDMA  @0x91550594 : 0x07268200
[   11.446247] dwc2 ffb00000.usb: HCDMAB         @0x9155059C : 0x0A262B98
[   11.446253] dwc2 ffb00000.usb: Host Channel 5 Specific Registers
[   11.446261] dwc2 ffb00000.usb: HCCHAR         @0x915505A0 : 0x00000000
[   11.446268] dwc2 ffb00000.usb: HCSPLT         @0x915505A4 : 0x00000000
[   11.446276] dwc2 ffb00000.usb: HCINT  @0x915505A8 : 0x00000000
[   11.446283] dwc2 ffb00000.usb: HCINTMSK       @0x915505AC : 0x00000000
[   11.446291] dwc2 ffb00000.usb: HCTSIZ         @0x915505B0 : 0x00000000
[   11.446298] dwc2 ffb00000.usb: HCDMA  @0x915505B4 : 0x07172400
[   11.446306] dwc2 ffb00000.usb: HCDMAB         @0x915505BC : 0x044D0008
[   11.446313] dwc2 ffb00000.usb: Host Channel 6 Specific Registers
[   11.446320] dwc2 ffb00000.usb: HCCHAR         @0x915505C0 : 0x00000000
[   11.446328] dwc2 ffb00000.usb: HCSPLT         @0x915505C4 : 0x00000000
[   11.446335] dwc2 ffb00000.usb: HCINT  @0x915505C8 : 0x00000000
[   11.446343] dwc2 ffb00000.usb: HCINTMSK       @0x915505CC : 0x00000000
[   11.446350] dwc2 ffb00000.usb: HCTSIZ         @0x915505D0 : 0x00000000
[   11.446358] dwc2 ffb00000.usb: HCDMA  @0x915505D4 : 0x07172400
[   11.446366] dwc2 ffb00000.usb: HCDMAB         @0x915505DC : 0x0805100D
[   11.446373] dwc2 ffb00000.usb: Host Channel 7 Specific Registers
[   11.446381] dwc2 ffb00000.usb: HCCHAR         @0x915505E0 : 0x00000000
[   11.446388] dwc2 ffb00000.usb: HCSPLT         @0x915505E4 : 0x00000000
[   11.446396] dwc2 ffb00000.usb: HCINT  @0x915505E8 : 0x00000000
[   11.446403] dwc2 ffb00000.usb: HCINTMSK       @0x915505EC : 0x00000000
[   11.446411] dwc2 ffb00000.usb: HCTSIZ         @0x915505F0 : 0x00000000
[   11.446419] dwc2 ffb00000.usb: HCDMA  @0x915505F4 : 0x07172200
[   11.446427] dwc2 ffb00000.usb: HCDMAB         @0x915505FC : 0x0805101F
[   11.446434] dwc2 ffb00000.usb: ************************************************************
[   11.446440] dwc2 ffb00000.usb: 
[   11.446457] dwc2 ffb00000.usb: gintsts=05000021  gintmsk=f3000806
[   11.548607] dwc2 ffb00000.usb: ClearPortFeature USB_PORT_FEAT_C_CONNECTION
[   11.651840] ga12: Allocated coherent 126 MiB memory for fifo
[   11.657659] dwc2 ffb00000.usb: SetPortFeature
[   11.657667] dwc2 ffb00000.usb: SetPortFeature - USB_PORT_FEAT_RESET
[   11.657675] dwc2 ffb00000.usb: In host mode, hprt0=00021501
[   11.709533] dwc2 ffb00000.usb: gintsts=05000021  gintmsk=f3000806
[   11.717514] dwc2 ffb00000.usb: DWC OTG HCD HUB STATUS DATA: Root port status changed
[   11.717526] dwc2 ffb00000.usb:   port_connect_status_change: 0
[   11.717533] dwc2 ffb00000.usb:   port_reset_change: 1
[   11.717541] dwc2 ffb00000.usb:   port_enable_change: 0
[   11.717547] dwc2 ffb00000.usb:   port_suspend_change: 0
[   11.717554] dwc2 ffb00000.usb:   port_over_current_change: 0
[   11.740656] ga12: NMI : 40
[   11.743844] ga12: baseaddr: 0x91480000
[   11.761652] dwc2 ffb00000.usb: ClearPortFeature USB_PORT_FEAT_C_RESET
[   11.813543] usb 1-1: new full-speed USB device number 2 using dwc2
[   11.819749] dwc2: STATUS EINPROGRESSN
[   11.989214] ga12: ga12_ctrl_open()
[   11.996407] ga12: ga12_ctrl_mmap() 
[   12.000601] ga12: phys address: 0xc1040000 
[   12.005548] ga12: ctrl_mmap  start=76f22000 end=76f23000
[   12.136968] ga12: ga12_ctrl_open()
[   12.140421] ga12: ga12_ctrl_mmap() 
[   12.143969] ga12: phys address: 0xc1040000 
[   12.148236] ga12: ctrl_mmap  start=76240000 end=76300000
[   12.177591] ga12: ga12_fifo_open()
[   12.184239] ga12: fifo_mmap done (ret=0) 
[   12.188276] ga12: start=6e440000 end=76240000
[   12.211434] ttyS1 - failed to request DMA
[   12.908999] socfpga-dwmac ff702000.ethernet eth1: Link is Down
[   13.937884] random: crng init done
[   16.045979] socfpga-dwmac ff700000.ethernet eth0: Link is Down
[   16.876537] dwc2 ffb00000.usb: DWC OTG HCD URB Dequeue
[   16.876551] dwc2 ffb00000.usb: desc DMA enabled
[   16.876568] dwc2 ffb00000.usb: Called usb_hcd_giveback_urb()
[   16.876577] dwc2 ffb00000.usb:   urb->status = -115
[   16.876594] ------------[ cut here ]------------
[   16.881199] Kernel BUG at 7f10e07c [verbose debug info unavailable]
[   16.887440] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP ARM
[   16.893249] Modules linked in: dwc2 usbcore ga12(O) gpio_pcf857x gpio_altera at24 rtc_pcf8563 nvmem_core lm75 hwmon phy_generic fpga_region i2c_designware_platform i2c_designware_core leds_gpio led_class altera_hps2fpga fpga_bridge uio_pdrv_genirq ledtrig_heartbeat autofs4
[   16.917365] CPU: 0 PID: 185 Comm: kworker/0:3 Tainted: G           O    4.11.0-gf5a125f99139-dirty #6
[   16.926543] Hardware name: Altera SOCFPGA
[   16.930579] Workqueue: usb_hub_wq hub_event [usbcore]
[   16.935616] task: 84522e00 task.stack: 8480c000
[   16.940160] PC is at _dwc2_hcd_urb_dequeue+0x1bc/0x2f4 [dwc2]
[   16.945888] LR is at irq_work_queue+0x14/0xc4
[   16.950231] pc : [<7f10e07c>]    lr : [<801db558>]    psr: a0070093
[   16.950231] sp : 8480dc80  ip : 00000007  fp : 8480dcb4
[   16.961658] r10: 60070013  r9 : fffffffe  r8 : 00000000
[   16.966862] r7 : 84544200  r6 : 8481e010  r5 : 8481e100  r4 : 87af2700
[   16.973362] r3 : ffffff8d  r2 : 00000001  r1 : 00000000  r0 : 00000027
[   16.979863] Flags: NzCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment user
[   16.987055] Control: 10c5387d  Table: 00c5004a  DAC: 00000055
[   16.992777] Process kworker/0:3 (pid: 185, stack limit = 0x8480c218)
[   16.999103] Stack: (0x8480dc80 to 0x8480e000)
[   17.003448] dc80: 80ae16c0 87be2f00 8480dcb4 87af2700 84cd2000 84544200 fffffffe 00001388
[   17.011594] dca0: 00000006 00000100 8480dcdc 8480dcb8 7f0ddf68 7f10decc 84cd2000 87af2700
[   17.019741] dcc0: 84cd2000 60070013 fffffffe 00001388 8480dcfc 8480dce0 7f0deaec 7f0ddf38
[   17.027886] dce0: 87af2700 87af270c 00000000 8480dd7c 8480dd2c 8480dd00 7f0dfc3c 7f0dea98
[   17.036032] dd00: 8480dd7c 00001388 00000006 00000100 8480dd2c 8480dd20 87af2700 8480dd34
[   17.044178] dd20: 8480dd6c 8480dd30 7f0dffb8 7f0dfbec 00000040 00000000 00020002 8480dd3c
[   17.052325] dd40: 8480dd3c 00000100 8480dd6c 87be2e80 00000040 87be2e40 84cd2000 00000000
[   17.060470] dd60: 8480ddac 8480dd70 7f0e0080 7f0dff08 8480dda0 00000080 803eb9ac 87be2e80
[   17.068616] dd80: 805c9094 84cd2000 84545400 84544200 87be2e40 7f0f3028 00000003 00000000
[   17.076762] dda0: 8480de24 8480ddb0 7f0d8cb0 7f0dffd4 00000100 00000000 87be2e40 00000040
[   17.084907] ddc0: 00001388 00000000 00000002 00000000 7f0efe14 7f0efea8 7f0efea4 7f0efe9c
[   17.093051] dde0: 00000000 00000002 00000000 00000032 00000002 00000001 7f0d70c4 84cd2000
[   17.101198] de00: 84545400 00000001 00000000 84cd1c00 84544218 84544200 8480de84 8480de28
[   17.109342] de20: 7f0da800 7f0d8798 00000000 00000001 87b7ce40 809a23cc 7f0f3b4c 00000064
[   17.117487] de40: 84544200 84cd221c 84544524 84544400 00000004 00000000 84545400 00000001
[   17.125633] de60: 84544524 84545504 84544524 00000000 00000101 00000000 8480def4 8480de88
[   17.133778] de80: 7f0db294 7f0da610 8480dec2 00000000 8480c000 00000000 84545820 84cd1ca4
[   17.141924] dea0: 00000002 84545440 84545438 84cd1c00 00000000 84545434 84545485 84545400
[   17.150070] dec0: 00000101 84545504 87d8da80 80dc1f00 84545504 87d8da80 87d94700 00000000
[   17.158214] dee0: 80955894 87d94705 8480df34 8480def8 8013a10c 7f0daeb0 87d8da80 00000008
[   17.166359] df00: 87d8da98 00000000 8480c038 87d8da80 80dc1f18 00000008 87d8da98 80902d00
[   17.174505] df20: 8480c038 80dc1f00 8480df7c 8480df38 8013a4cc 80139fcc 8480df5c 8480c000
[   17.182650] df40: 80902d00 80d9ecc0 80dc1f00 8091d8ae 80da7c5c 80da7c40 00000000 80d9ecc0
[   17.190795] df60: 80dc1f00 8013a470 80da7c5c 813f5e90 8480dfac 8480df80 80140180 8013a47c
[   17.198939] df80: 813be000 80d9ecc0 80140044 00000000 00000000 00000000 00000000 00000000
[   17.207084] dfa0: 00000000 8480dfb0 80108348 80140050 00000000 00000000 00000000 00000000
[   17.215229] dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
[   17.223373] dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 7069222c 3a223476
[   17.231512] Backtrace: 
[   17.234010] [<7f10dec0>] (_dwc2_hcd_urb_dequeue [dwc2]) from [<7f0ddf68>] (unlink1+0x3c/0x120 [usbcore])
[   17.243455]  r10:00000100 r9:00000006 r8:00001388 r7:fffffffe r6:84544200 r5:84cd2000
[   17.251250]  r4:87af2700
[   17.253818] [<7f0ddf2c>] (unlink1 [usbcore]) from [<7f0deaec>] (usb_hcd_unlink_urb+0x60/0x94 [usbcore])
[   17.263175]  r8:00001388 r7:fffffffe r6:60070013 r5:84cd2000 r4:87af2700 r3:84cd2000
[   17.270923] [<7f0dea8c>] (usb_hcd_unlink_urb [usbcore]) from [<7f0dfc3c>] (usb_kill_urb+0x5c/0xd0 [usbcore])
[   17.280710]  r7:8480dd7c r6:00000000 r5:87af270c r4:87af2700
[   17.286388] [<7f0dfbe0>] (usb_kill_urb [usbcore]) from [<7f0dffb8>] (usb_start_wait_urb+0xbc/0xcc [usbcore])
[   17.296173]  r5:8480dd34 r4:87af2700
[   17.299775] [<7f0dfefc>] (usb_start_wait_urb [usbcore]) from [<7f0e0080>] (usb_control_msg+0xb8/0xe8 [usbcore])
[   17.309822]  r8:00000000 r7:84cd2000 r6:87be2e40 r5:00000040 r4:87be2e80
[   17.316535] [<7f0dffc8>] (usb_control_msg [usbcore]) from [<7f0d8cb0>] (hub_port_init+0x524/0xafc [usbcore])
[   17.326323]  r10:00000000 r9:00000003 r8:7f0f3028 r7:87be2e40 r6:84544200 r5:84545400
[   17.334118]  r4:84cd2000
[   17.336682] [<7f0d878c>] (hub_port_init [usbcore]) from [<7f0da800>] (hub_port_connect+0x1fc/0x8a0 [usbcore])
[   17.346557]  r10:84544200 r9:84544218 r8:84cd1c00 r7:00000000 r6:00000001 r5:84545400
[   17.354351]  r4:84cd2000
[   17.356914] [<7f0da604>] (hub_port_connect [usbcore]) from [<7f0db294>] (hub_event+0x3f0/0x624 [usbcore])
[   17.366444]  r10:00000000 r9:00000101 r8:00000000 r7:84544524 r6:84545504 r5:84544524
[   17.374239]  r4:00000001
[   17.376790] [<7f0daea4>] (hub_event [usbcore]) from [<8013a10c>] (process_one_work+0x14c/0x4b0)
[   17.385456]  r10:87d94705 r9:80955894 r8:00000000 r7:87d94700 r6:87d8da80 r5:84545504
[   17.393251]  r4:80dc1f00
[   17.395781] [<80139fc0>] (process_one_work) from [<8013a4cc>] (worker_thread+0x5c/0x520)
[   17.403841]  r10:80dc1f00 r9:8480c038 r8:80902d00 r7:87d8da98 r6:00000008 r5:80dc1f18
[   17.411635]  r4:87d8da80
[   17.414169] [<8013a470>] (worker_thread) from [<80140180>] (kthread+0x13c/0x16c)
[   17.421537]  r10:813f5e90 r9:80da7c5c r8:8013a470 r7:80dc1f00 r6:80d9ecc0 r5:00000000
[   17.429333]  r4:80da7c40
[   17.431866] [<80140044>] (kthread) from [<80108348>] (ret_from_fork+0x14/0x2c)
[   17.439061]  r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:80140044
[   17.446857]  r4:80d9ecc0 r3:813be000
[   17.450422] Code: e5832024 eb44d8b9 e51bc030 ea000019 (e7f001f2) 
[   17.456492] ---[ end trace cad26d80d72cd9cf ]---
[   17.461095] note: kworker/0:3[185] exited with preempt_count 1
[   17.468947] socfpga-dwmac ff700000.ethernet eth0: Link is Up - 100Mbps/Full - flow control off



Below is the good case but with the printk("dwc2: STATUS EINPROGRESS\n"); commented out otherwise the buffer would overflow:
[   11.299318] usbcore: registered new interface driver usbfs
[   11.306490] usbcore: registered new interface driver hub
[   11.313259] usbcore: registered new device driver usb
[   11.391372] dwc2 ffb00000.usb: mapped PA ffb00000 to VA 91460000
[   11.391507] dwc2 ffb00000.usb: Looking up vusb_d-supply from device tree
[   11.391683] dwc2 ffb00000.usb: Looking up vusb_d-supply property in node /soc/usb@ffb00000 failed
[   11.391702] dwc2 ffb00000.usb: ffb00000.usb supply vusb_d not found, using dummy regulator
[   11.404642] dwc2 ffb00000.usb: Looking up vusb_a-supply from device tree
[   11.404663] dwc2 ffb00000.usb: Looking up vusb_a-supply property in node /soc/usb@ffb00000 failed
[   11.404682] dwc2 ffb00000.usb: ffb00000.usb supply vusb_a not found, using dummy regulator
[   11.416577] dwc2 ffb00000.usb: registering common handler for irq43
[   11.416765] dwc2 ffb00000.usb: Forcing mode to host
[   11.416785] dwc2 ffb00000.usb: Core Release: 2.93a (snpsid=4f54293a)
[   11.416799] dwc2 ffb00000.usb: Forcing mode to host
[   11.416826] dwc2 ffb00000.usb: DWC OTG HCD INIT
[   11.416838] dwc2 ffb00000.usb: hcfg=00000200
[   11.416865] dwc2 ffb00000.usb: dwc2_core_init(8423f010)
[   11.416878] dwc2 ffb00000.usb: HS ULPI PHY selected
[   11.416890] dwc2 ffb00000.usb: Internal DMA Mode
[   11.416902] dwc2 ffb00000.usb: host_dma:1 dma_desc_enable:1
[   11.416913] dwc2 ffb00000.usb: Using Descriptor DMA mode
[   11.416927] dwc2 ffb00000.usb: Host Mode
[   11.434773] dwc2 ffb00000.usb: DWC OTG Controller
[   11.439563] dwc2 ffb00000.usb: new USB bus registered, assigned bus number 1
[   11.448916] dwc2 ffb00000.usb: irq 43, io mem 0xffb00000
[   11.455563] dwc2 ffb00000.usb: DWC OTG HCD START
[   11.455584] dwc2 ffb00000.usb: dwc2_core_host_init(8423f010)
[   11.455598] dwc2 ffb00000.usb: Initializing HCFG.FSLSPClkSel to 00000000
[   11.455612] dwc2 ffb00000.usb: initial grxfsiz=00002000
[   11.455625] dwc2 ffb00000.usb: new grxfsiz=00000200
[   11.455637] dwc2 ffb00000.usb: initial gnptxfsiz=20002000
[   11.455650] dwc2 ffb00000.usb: new gnptxfsiz=02000200
[   11.455662] dwc2 ffb00000.usb: initial hptxfsiz=20004000
[   11.455674] dwc2 ffb00000.usb: new hptxfsiz=02000400
[   11.455695] dwc2 ffb00000.usb: Init: Port Power? op_state=9
[   11.455707] dwc2 ffb00000.usb: Init: Power Port (0)
[   11.455718] dwc2 ffb00000.usb: dwc2_enable_host_interrupts()
[   11.455731] dwc2 ffb00000.usb: DWC OTG HCD Has Root Hub
[   11.455983] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
[   11.474465] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
[   11.484482] usb usb1: Product: DWC OTG Controller
[   11.489745] usb usb1: Manufacturer: Linux 4.11.0-gf5a125f99139-dirty dwc2_hsotg
[   11.497573] usb usb1: SerialNumber: ffb00000.usb
[   11.504477] dwc2 ffb00000.usb: DWC OTG HCD EP RESET: bEndpointAddress=0x81
[   11.505365] hub 1-0:1.0: USB hub found
[   11.511847] dwc2 ffb00000.usb: GetHubDescriptor
[   11.511899] hub 1-0:1.0: 1 port detected
[   11.518317] dwc2 ffb00000.usb: GetHubStatus
[   11.519647] dwc2 ffb00000.usb: SetPortFeature
[   11.519950] dwc2 ffb00000.usb: 
[   11.519964] dwc2 ffb00000.usb: ************************************************************
[   11.519975] dwc2 ffb00000.usb: HCD State:
[   11.519987] dwc2 ffb00000.usb:   Num channels: 8
[   11.519999] dwc2 ffb00000.usb:   Channel 0:
[   11.520012] dwc2 ffb00000.usb:     dev_addr: 0, ep_num: 0, ep_is_in: 0
[   11.520024] dwc2 ffb00000.usb:     speed: 0
[   11.520035] dwc2 ffb00000.usb:     ep_type: 0
[   11.520046] dwc2 ffb00000.usb:     max_packet: 0
[   11.520058] dwc2 ffb00000.usb:     data_pid_start: 0
[   11.520069] dwc2 ffb00000.usb:     multi_count: 0
[   11.520080] dwc2 ffb00000.usb:     xfer_started: 0
[   11.520093] dwc2 ffb00000.usb:     xfer_buf:   (null)
[   11.520105] dwc2 ffb00000.usb:     xfer_dma: 00000000
[   11.520117] dwc2 ffb00000.usb:     xfer_len: 0
[   11.520128] dwc2 ffb00000.usb:     xfer_count: 0
[   11.520140] dwc2 ffb00000.usb:     halt_on_queue: 0
[   11.520151] dwc2 ffb00000.usb:     halt_pending: 0
[   11.520163] dwc2 ffb00000.usb:     halt_status: 0
[   11.520174] dwc2 ffb00000.usb:     do_split: 0
[   11.520185] dwc2 ffb00000.usb:     complete_split: 0
[   11.520196] dwc2 ffb00000.usb:     hub_addr: 0
[   11.520208] dwc2 ffb00000.usb:     hub_port: 0
[   11.520219] dwc2 ffb00000.usb:     xact_pos: 0
[   11.520230] dwc2 ffb00000.usb:     requests: 0
[   11.520241] dwc2 ffb00000.usb:     qh:   (null)
[   11.520253] dwc2 ffb00000.usb:   Channel 1:
[   11.520266] dwc2 ffb00000.usb:     dev_addr: 0, ep_num: 0, ep_is_in: 0
[   11.520277] dwc2 ffb00000.usb:     speed: 0
[   11.520288] dwc2 ffb00000.usb:     ep_type: 0
[   11.520299] dwc2 ffb00000.usb:     max_packet: 0
[   11.520310] dwc2 ffb00000.usb:     data_pid_start: 0
[   11.520321] dwc2 ffb00000.usb:     multi_count: 0
[   11.520333] dwc2 ffb00000.usb:     xfer_started: 0
[   11.520344] dwc2 ffb00000.usb:     xfer_buf:   (null)
[   11.520355] dwc2 ffb00000.usb:     xfer_dma: 00000000
[   11.520365] dwc2 ffb00000.usb:     xfer_len: 0
[   11.527482] dwc2 ffb00000.usb:     xfer_count: 0
[   11.527491] dwc2 ffb00000.usb:     halt_on_queue: 0
[   11.527498] dwc2 ffb00000.usb:     halt_pending: 0
[   11.527505] dwc2 ffb00000.usb:     halt_status: 0
[   11.527512] dwc2 ffb00000.usb:     do_split: 0
[   11.527519] dwc2 ffb00000.usb:     complete_split: 0
[   11.527525] dwc2 ffb00000.usb:     hub_addr: 0
[   11.527532] dwc2 ffb00000.usb:     hub_port: 0
[   11.527539] dwc2 ffb00000.usb:     xact_pos: 0
[   11.527545] dwc2 ffb00000.usb:     requests: 0
[   11.527554] dwc2 ffb00000.usb:     qh:   (null)
[   11.527562] dwc2 ffb00000.usb:   Channel 2:
[   11.527570] dwc2 ffb00000.usb:     dev_addr: 0, ep_num: 0, ep_is_in: 0
[   11.527577] dwc2 ffb00000.usb:     speed: 0
[   11.527584] dwc2 ffb00000.usb:     ep_type: 0
[   11.527590] dwc2 ffb00000.usb:     max_packet: 0
[   11.527597] dwc2 ffb00000.usb:     data_pid_start: 0
[   11.527604] dwc2 ffb00000.usb:     multi_count: 0
[   11.527610] dwc2 ffb00000.usb:     xfer_started: 0
[   11.527618] dwc2 ffb00000.usb:     xfer_buf:   (null)
[   11.527626] dwc2 ffb00000.usb:     xfer_dma: 00000000
[   11.527633] dwc2 ffb00000.usb:     xfer_len: 0
[   11.527640] dwc2 ffb00000.usb:     xfer_count: 0
[   11.527648] dwc2 ffb00000.usb:     halt_on_queue: 0
[   11.527655] dwc2 ffb00000.usb:     halt_pending: 0
[   11.527661] dwc2 ffb00000.usb:     halt_status: 0
[   11.527668] dwc2 ffb00000.usb:     do_split: 0
[   11.527675] dwc2 ffb00000.usb:     complete_split: 0
[   11.527682] dwc2 ffb00000.usb:     hub_addr: 0
[   11.527688] dwc2 ffb00000.usb:     hub_port: 0
[   11.527695] dwc2 ffb00000.usb:     xact_pos: 0
[   11.527701] dwc2 ffb00000.usb:     requests: 0
[   11.527708] dwc2 ffb00000.usb:     qh:   (null)
[   11.527715] dwc2 ffb00000.usb:   Channel 3:
[   11.527723] dwc2 ffb00000.usb:     dev_addr: 0, ep_num: 0, ep_is_in: 0
[   11.527730] dwc2 ffb00000.usb:     speed: 0
[   11.527737] dwc2 ffb00000.usb:     ep_type: 0
[   11.527743] dwc2 ffb00000.usb:     max_packet: 0
[   11.527750] dwc2 ffb00000.usb:     data_pid_start: 0
[   11.527756] dwc2 ffb00000.usb:     multi_count: 0
[   11.527763] dwc2 ffb00000.usb:     xfer_started: 0
[   11.527770] dwc2 ffb00000.usb:     xfer_buf:   (null)
[   11.527777] dwc2 ffb00000.usb:     xfer_dma: 00000000
[   11.527784] dwc2 ffb00000.usb:     xfer_len: 0
[   11.527791] dwc2 ffb00000.usb:     xfer_count: 0
[   11.527798] dwc2 ffb00000.usb:     halt_on_queue: 0
[   11.527804] dwc2 ffb00000.usb:     halt_pending: 0
[   11.527811] dwc2 ffb00000.usb:     halt_status: 0
[   11.527818] dwc2 ffb00000.usb:     do_split: 0
[   11.527825] dwc2 ffb00000.usb:     complete_split: 0
[   11.527831] dwc2 ffb00000.usb:     hub_addr: 0
[   11.527838] dwc2 ffb00000.usb:     hub_port: 0
[   11.527845] dwc2 ffb00000.usb:     xact_pos: 0
[   11.527851] dwc2 ffb00000.usb:     requests: 0
[   11.527858] dwc2 ffb00000.usb:     qh:   (null)
[   11.527865] dwc2 ffb00000.usb:   Channel 4:
[   11.527873] dwc2 ffb00000.usb:     dev_addr: 0, ep_num: 0, ep_is_in: 0
[   11.527879] dwc2 ffb00000.usb:     speed: 0
[   11.527886] dwc2 ffb00000.usb:     ep_type: 0
[   11.527893] dwc2 ffb00000.usb:     max_packet: 0
[   11.527899] dwc2 ffb00000.usb:     data_pid_start: 0
[   11.527906] dwc2 ffb00000.usb:     multi_count: 0
[   11.527913] dwc2 ffb00000.usb:     xfer_started: 0
[   11.527920] dwc2 ffb00000.usb:     xfer_buf:   (null)
[   11.527926] dwc2 ffb00000.usb:     xfer_dma: 00000000
[   11.527933] dwc2 ffb00000.usb:     xfer_len: 0
[   11.527940] dwc2 ffb00000.usb:     xfer_count: 0
[   11.527947] dwc2 ffb00000.usb:     halt_on_queue: 0
[   11.527954] dwc2 ffb00000.usb:     halt_pending: 0
[   11.527960] dwc2 ffb00000.usb:     halt_status: 0
[   11.527967] dwc2 ffb00000.usb:     do_split: 0
[   11.527974] dwc2 ffb00000.usb:     complete_split: 0
[   11.527980] dwc2 ffb00000.usb:     hub_addr: 0
[   11.527987] dwc2 ffb00000.usb:     hub_port: 0
[   11.527994] dwc2 ffb00000.usb:     xact_pos: 0
[   11.528000] dwc2 ffb00000.usb:     requests: 0
[   11.528007] dwc2 ffb00000.usb:     qh:   (null)
[   11.528013] dwc2 ffb00000.usb:   Channel 5:
[   11.528021] dwc2 ffb00000.usb:     dev_addr: 0, ep_num: 0, ep_is_in: 0
[   11.528028] dwc2 ffb00000.usb:     speed: 0
[   11.528034] dwc2 ffb00000.usb:     ep_type: 0
[   11.528041] dwc2 ffb00000.usb:     max_packet: 0
[   11.528047] dwc2 ffb00000.usb:     data_pid_start: 0
[   11.528054] dwc2 ffb00000.usb:     multi_count: 0
[   11.528060] dwc2 ffb00000.usb:     xfer_started: 0
[   11.528067] dwc2 ffb00000.usb:     xfer_buf:   (null)
[   11.528074] dwc2 ffb00000.usb:     xfer_dma: 00000000
[   11.528081] dwc2 ffb00000.usb:     xfer_len: 0
[   11.528088] dwc2 ffb00000.usb:     xfer_count: 0
[   11.528095] dwc2 ffb00000.usb:     halt_on_queue: 0
[   11.528101] dwc2 ffb00000.usb:     halt_pending: 0
[   11.528108] dwc2 ffb00000.usb:     halt_status: 0
[   11.528114] dwc2 ffb00000.usb:     do_split: 0
[   11.528121] dwc2 ffb00000.usb:     complete_split: 0
[   11.528128] dwc2 ffb00000.usb:     hub_addr: 0
[   11.528134] dwc2 ffb00000.usb:     hub_port: 0
[   11.528141] dwc2 ffb00000.usb:     xact_pos: 0
[   11.528148] dwc2 ffb00000.usb:     requests: 0
[   11.528154] dwc2 ffb00000.usb:     qh:   (null)
[   11.528161] dwc2 ffb00000.usb:   Channel 6:
[   11.528169] dwc2 ffb00000.usb:     dev_addr: 0, ep_num: 0, ep_is_in: 0
[   11.528175] dwc2 ffb00000.usb:     speed: 0
[   11.528182] dwc2 ffb00000.usb:     ep_type: 0
[   11.528189] dwc2 ffb00000.usb:     max_packet: 0
[   11.528195] dwc2 ffb00000.usb:     data_pid_start: 0
[   11.528202] dwc2 ffb00000.usb:     multi_count: 0
[   11.528208] dwc2 ffb00000.usb:     xfer_started: 0
[   11.528215] dwc2 ffb00000.usb:     xfer_buf:   (null)
[   11.528222] dwc2 ffb00000.usb:     xfer_dma: 00000000
[   11.528229] dwc2 ffb00000.usb:     xfer_len: 0
[   11.528235] dwc2 ffb00000.usb:     xfer_count: 0
[   11.528242] dwc2 ffb00000.usb:     halt_on_queue: 0
[   11.528248] dwc2 ffb00000.usb:     halt_pending: 0
[   11.528255] dwc2 ffb00000.usb:     halt_status: 0
[   11.528262] dwc2 ffb00000.usb:     do_split: 0
[   11.528268] dwc2 ffb00000.usb:     complete_split: 0
[   11.528275] dwc2 ffb00000.usb:     hub_addr: 0
[   11.528281] dwc2 ffb00000.usb:     hub_port: 0
[   11.528288] dwc2 ffb00000.usb:     xact_pos: 0
[   11.528294] dwc2 ffb00000.usb:     requests: 0
[   11.528301] dwc2 ffb00000.usb:     qh:   (null)
[   11.528308] dwc2 ffb00000.usb:   Channel 7:
[   11.528316] dwc2 ffb00000.usb:     dev_addr: 0, ep_num: 0, ep_is_in: 0
[   11.528322] dwc2 ffb00000.usb:     speed: 0
[   11.528329] dwc2 ffb00000.usb:     ep_type: 0
[   11.528335] dwc2 ffb00000.usb:     max_packet: 0
[   11.528342] dwc2 ffb00000.usb:     data_pid_start: 0
[   11.528348] dwc2 ffb00000.usb:     multi_count: 0
[   11.528355] dwc2 ffb00000.usb:     xfer_started: 0
[   11.528362] dwc2 ffb00000.usb:     xfer_buf:   (null)
[   11.530348] dwc2 ffb00000.usb:     xfer_dma: 00000000
[   11.530360] dwc2 ffb00000.usb:     xfer_len: 0
[   11.530569] dwc2 ffb00000.usb:     xfer_count: 0
[   11.530582] dwc2 ffb00000.usb:     halt_on_queue: 0
[   11.530590] dwc2 ffb00000.usb:     halt_pending: 0
[   11.530597] dwc2 ffb00000.usb:     halt_status: 0
[   11.530604] dwc2 ffb00000.usb:     do_split: 0
[   11.530611] dwc2 ffb00000.usb:     complete_split: 0
[   11.530618] dwc2 ffb00000.usb:     hub_addr: 0
[   11.530625] dwc2 ffb00000.usb:     hub_port: 0
[   11.530631] dwc2 ffb00000.usb:     xact_pos: 0
[   11.530638] dwc2 ffb00000.usb:     requests: 0
[   11.530645] dwc2 ffb00000.usb:     qh:   (null)
[   11.530655] dwc2 ffb00000.usb:   non_periodic_channels: 0
[   11.530662] dwc2 ffb00000.usb:   periodic_channels: 0
[   11.530669] dwc2 ffb00000.usb:   periodic_usecs: 0
[   11.530676] dwc2 ffb00000.usb:   NP Tx Req Queue Space Avail: 8
[   11.530683] dwc2 ffb00000.usb:   NP Tx FIFO Space Avail: 512
[   11.530691] dwc2 ffb00000.usb:   P Tx Req Queue Space Avail: 16
[   11.530698] dwc2 ffb00000.usb:   P Tx FIFO Space Avail: 512
[   11.530705] dwc2 ffb00000.usb: Core Global Registers
[   11.530714] dwc2 ffb00000.usb: GOTGCTL        @0x91460000 : 0x002C0000
[   11.530722] dwc2 ffb00000.usb: GOTGINT        @0x91460004 : 0x00000000
[   11.530731] dwc2 ffb00000.usb: GAHBCFG        @0x91460008 : 0x0000002E
[   11.530739] dwc2 ffb00000.usb: GUSBCFG        @0x9146000C : 0x20101410
[   11.530747] dwc2 ffb00000.usb: GRSTCTL        @0x91460010 : 0x80000000
[   11.530755] dwc2 ffb00000.usb: GINTSTS        @0x91460014 : 0x25000021
[   11.530763] dwc2 ffb00000.usb: GINTMSK        @0x91460018 : 0xF3000806
[   11.530771] dwc2 ffb00000.usb: GRXSTSR        @0x9146001C : 0x080001F3
[   11.530779] dwc2 ffb00000.usb: GRXFSIZ        @0x91460024 : 0x00000200
[   11.530787] dwc2 ffb00000.usb: GNPTXFSIZ      @0x91460028 : 0x02000200
[   11.530795] dwc2 ffb00000.usb: GNPTXSTS       @0x9146002C : 0x00080200
[   11.530804] dwc2 ffb00000.usb: GI2CCTL        @0x91460030 : 0x00000000
[   11.530812] dwc2 ffb00000.usb: GPVNDCTL       @0x91460034 : 0x00000000
[   11.530820] dwc2 ffb00000.usb: GGPIO  @0x91460038 : 0x00000000
[   11.530828] dwc2 ffb00000.usb: GUID   @0x9146003C : 0x12345678
[   11.530836] dwc2 ffb00000.usb: GSNPSID        @0x91460040 : 0x4F54293A
[   11.530844] dwc2 ffb00000.usb: GHWCFG1        @0x91460044 : 0x00000000
[   11.530852] dwc2 ffb00000.usb: GHWCFG2        @0x91460048 : 0x238FFC90
[   11.530860] dwc2 ffb00000.usb: GHWCFG3        @0x9146004C : 0x1F8002E8
[   11.530868] dwc2 ffb00000.usb: GHWCFG4        @0x91460050 : 0xFE0F0020
[   11.530876] dwc2 ffb00000.usb: GLPMCFG        @0x91460054 : 0x00000000
[   11.530884] dwc2 ffb00000.usb: GPWRDN         @0x91460058 : 0x00000000
[   11.530892] dwc2 ffb00000.usb: GDFIFOCFG      @0x9146005C : 0x06002000
[   11.530900] dwc2 ffb00000.usb: HPTXFSIZ       @0x91460100 : 0x02000400
[   11.530909] dwc2 ffb00000.usb: PCGCTL         @0x91460E00 : 0x00000000
[   11.530916] dwc2 ffb00000.usb: Host Global Registers
[   11.530924] dwc2 ffb00000.usb: HCFG   @0x91460400 : 0x00800200
[   11.530932] dwc2 ffb00000.usb: HFIR   @0x91460404 : 0x0000EA60
[   11.530940] dwc2 ffb00000.usb: HFNUM  @0x91460408 : 0xEA603FFF
[   11.530948] dwc2 ffb00000.usb: HPTXSTS        @0x91460410 : 0x00100200
[   11.530955] dwc2 ffb00000.usb: HAINT  @0x91460414 : 0x00000000
[   11.530964] dwc2 ffb00000.usb: HAINTMSK       @0x91460418 : 0x00000000
[   11.530972] dwc2 ffb00000.usb: HFLBADDR @0x9146041C : 0x00000000
[   11.530980] dwc2 ffb00000.usb: HPRT0  @0x91460440 : 0x00021403
[   11.530987] dwc2 ffb00000.usb: Host Channel 0 Specific Registers
[   11.530995] dwc2 ffb00000.usb: HCCHAR         @0x91460500 : 0x00000000
[   11.531003] dwc2 ffb00000.usb: HCSPLT         @0x91460504 : 0x00000000
[   11.531010] dwc2 ffb00000.usb: HCINT  @0x91460508 : 0x00000000
[   11.531018] dwc2 ffb00000.usb: HCINTMSK       @0x9146050C : 0x00000000
[   11.531026] dwc2 ffb00000.usb: HCTSIZ         @0x91460510 : 0x00000000
[   11.531035] dwc2 ffb00000.usb: HCDMA  @0x91460514 : 0x073D8400
[   11.531043] dwc2 ffb00000.usb: HCDMAB         @0x9146051C : 0x0805100D
[   11.531050] dwc2 ffb00000.usb: Host Channel 1 Specific Registers
[   11.531057] dwc2 ffb00000.usb: HCCHAR         @0x91460520 : 0x00000000
[   11.531065] dwc2 ffb00000.usb: HCSPLT         @0x91460524 : 0x00000000
[   11.531073] dwc2 ffb00000.usb: HCINT  @0x91460528 : 0x00000000
[   11.531081] dwc2 ffb00000.usb: HCINTMSK       @0x9146052C : 0x00000000
[   11.531089] dwc2 ffb00000.usb: HCTSIZ         @0x91460530 : 0x00000000
[   11.531096] dwc2 ffb00000.usb: HCDMA  @0x91460534 : 0x073D8200
[   11.531104] dwc2 ffb00000.usb: HCDMAB         @0x9146053C : 0x0805101F
[   11.531111] dwc2 ffb00000.usb: Host Channel 2 Specific Registers
[   11.531119] dwc2 ffb00000.usb: HCCHAR         @0x91460540 : 0x00000000
[   11.531127] dwc2 ffb00000.usb: HCSPLT         @0x91460544 : 0x00000000
[   11.531134] dwc2 ffb00000.usb: HCINT  @0x91460548 : 0x00000000
[   11.531142] dwc2 ffb00000.usb: HCINTMSK       @0x9146054C : 0x00000000
[   11.531150] dwc2 ffb00000.usb: HCTSIZ         @0x91460550 : 0x00000000
[   11.531158] dwc2 ffb00000.usb: HCDMA  @0x91460554 : 0x073D8200
[   11.531166] dwc2 ffb00000.usb: HCDMAB         @0x9146055C : 0x0142F200
[   11.531173] dwc2 ffb00000.usb: Host Channel 3 Specific Registers
[   11.531181] dwc2 ffb00000.usb: HCCHAR         @0x91460560 : 0x00000000
[   11.531188] dwc2 ffb00000.usb: HCSPLT         @0x91460564 : 0x00000000
[   11.531196] dwc2 ffb00000.usb: HCINT  @0x91460568 : 0x00000000
[   11.531204] dwc2 ffb00000.usb: HCINTMSK       @0x9146056C : 0x00000000
[   11.531212] dwc2 ffb00000.usb: HCTSIZ         @0x91460570 : 0x00000000
[   11.531219] dwc2 ffb00000.usb: HCDMA  @0x91460574 : 0x073D8400
[   11.531227] dwc2 ffb00000.usb: HCDMAB         @0x9146057C : 0x0805100D
[   11.531234] dwc2 ffb00000.usb: Host Channel 4 Specific Registers
[   11.531242] dwc2 ffb00000.usb: HCCHAR         @0x91460580 : 0x00000000
[   11.531249] dwc2 ffb00000.usb: HCSPLT         @0x91460584 : 0x00000000
[   11.531257] dwc2 ffb00000.usb: HCINT  @0x91460588 : 0x00000000
[   11.531265] dwc2 ffb00000.usb: HCINTMSK       @0x9146058C : 0x00000000
[   11.531272] dwc2 ffb00000.usb: HCTSIZ         @0x91460590 : 0x00000000
[   11.531280] dwc2 ffb00000.usb: HCDMA  @0x91460594 : 0x073D8200
[   11.531288] dwc2 ffb00000.usb: HCDMAB         @0x9146059C : 0x0805101F
[   11.531295] dwc2 ffb00000.usb: Host Channel 5 Specific Registers
[   11.531303] dwc2 ffb00000.usb: HCCHAR         @0x914605A0 : 0x00000000
[   11.531310] dwc2 ffb00000.usb: HCSPLT         @0x914605A4 : 0x00000000
[   11.531318] dwc2 ffb00000.usb: HCINT  @0x914605A8 : 0x00000000
[   11.531326] dwc2 ffb00000.usb: HCINTMSK       @0x914605AC : 0x00000000
[   11.531333] dwc2 ffb00000.usb: HCTSIZ         @0x914605B0 : 0x00000000
[   11.531341] dwc2 ffb00000.usb: HCDMA  @0x914605B4 : 0x073D8400
[   11.531349] dwc2 ffb00000.usb: HCDMAB         @0x914605BC : 0x0805100D
[   11.531356] dwc2 ffb00000.usb: Host Channel 6 Specific Registers
[   11.531364] dwc2 ffb00000.usb: HCCHAR         @0x914605C0 : 0x00000000
[   11.532764] dwc2 ffb00000.usb: HCSPLT         @0x914605C4 : 0x00000000
[   11.532775] dwc2 ffb00000.usb: HCINT  @0x914605C8 : 0x00000000
[   11.532783] dwc2 ffb00000.usb: HCINTMSK       @0x914605CC : 0x00000000
[   11.532792] dwc2 ffb00000.usb: HCTSIZ         @0x914605D0 : 0x00000000
[   11.532800] dwc2 ffb00000.usb: HCDMA  @0x914605D4 : 0x073D8200
[   11.532808] dwc2 ffb00000.usb: HCDMAB         @0x914605DC : 0x0805101F
[   11.532816] dwc2 ffb00000.usb: Host Channel 7 Specific Registers
[   11.532823] dwc2 ffb00000.usb: HCCHAR         @0x914605E0 : 0x00000000
[   11.532831] dwc2 ffb00000.usb: HCSPLT         @0x914605E4 : 0x00000000
[   11.532839] dwc2 ffb00000.usb: HCINT  @0x914605E8 : 0x00000000
[   11.532847] dwc2 ffb00000.usb: HCINTMSK       @0x914605EC : 0x00000000
[   11.532855] dwc2 ffb00000.usb: HCTSIZ         @0x914605F0 : 0x00000000
[   11.532863] dwc2 ffb00000.usb: HCDMA  @0x914605F4 : 0x073D8400
[   11.532871] dwc2 ffb00000.usb: HCDMAB         @0x914605FC : 0x0805100D
[   11.532879] dwc2 ffb00000.usb: ************************************************************
[   11.532885] dwc2 ffb00000.usb: 
[   11.532905] dwc2 ffb00000.usb: gintsts=25000021  gintmsk=f3000806
[   11.532915] dwc2 ffb00000.usb: ++Disconnect Detected Interrupt++ (Host) a_host
[   11.620536] dwc2 ffb00000.usb: ClearPortFeature USB_PORT_FEAT_C_CONNECTION
[   11.645240] ga12: Allocated coherent 126 MiB memory for fifo
[   11.724559] dwc2 ffb00000.usb: SetPortFeature
[   11.724574] dwc2 ffb00000.usb: SetPortFeature - USB_PORT_FEAT_RESET
[   11.724586] dwc2 ffb00000.usb: In host mode, hprt0=00021501
[   11.736348] ga12: NMI : 40
[   11.744592] ga12: baseaddr: 0x91480000
[   11.776754] dwc2 ffb00000.usb: gintsts=05000021  gintmsk=f1000806
[   11.828468] dwc2 ffb00000.usb: ClearPortFeature USB_PORT_FEAT_C_RESET
[   11.880435] usb 1-1: new high-speed USB device number 2 using dwc2
[   11.891621] dwc2 ffb00000.usb: SetPortFeature
[   11.891638] dwc2 ffb00000.usb: SetPortFeature - USB_PORT_FEAT_RESET
[   11.891650] dwc2 ffb00000.usb: In host mode, hprt0=00001101
[   11.891668] dwc2 ffb00000.usb: gintsts=05000029  gintmsk=f3000806
[   11.943706] dwc2 ffb00000.usb: gintsts=05000029  gintmsk=f3000806
[   11.972390] dwc2 ffb00000.usb: DWC OTG HCD HUB STATUS DATA: Root port status changed
[   11.972402] dwc2 ffb00000.usb:   port_connect_status_change: 0
[   11.972410] dwc2 ffb00000.usb:   port_reset_change: 1
[   11.972417] dwc2 ffb00000.usb:   port_enable_change: 1
[   11.972424] dwc2 ffb00000.usb:   port_suspend_change: 0
[   11.972430] dwc2 ffb00000.usb:   port_over_current_change: 0
[   11.995480] dwc2 ffb00000.usb: ClearPortFeature USB_PORT_FEAT_C_RESET
[   12.047521] dwc2 ffb00000.usb: DWC OTG HCD EP DISABLE: bEndpointAddress=0x00, ep->hcpriv=80a6f780
[   12.047542] dwc2 ffb00000.usb: DWC OTG HCD EP DISABLE: bEndpointAddress=0x00, ep->hcpriv=  (null)
[   12.047552] dwc2 ffb00000.usb: DWC OTG HCD EP RESET: bEndpointAddress=0x00
[   12.053515] ga12: ga12_ctrl_open()
[   12.057210] ga12: ga12_ctrl_mmap() 
[   12.060141] usb 1-1: New USB device found, idVendor=08ec, idProduct=0016
[   12.060150] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[   12.060157] usb 1-1: Product: DataTraveler 2.0
[   12.060163] usb 1-1: Manufacturer: Kingston
[   12.060169] usb 1-1: SerialNumber: 0F30346010D2AA96
[   12.064537] dwc2 ffb00000.usb: DWC OTG HCD EP RESET: bEndpointAddress=0x81
[   12.064546] dwc2 ffb00000.usb: DWC OTG HCD EP RESET: bEndpointAddress=0x02
[   12.064970] dwc2 ffb00000.usb: ClearPortFeature USB_PORT_FEAT_C_ENABLE
[   12.091017] ga12: phys address: 0xc1040000 
[   12.096001] ga12: ctrl_mmap  start=76f73000 end=76f74000
[   12.176007] usb-storage 1-1:1.0: USB Mass Storage device detected
[   12.187861] scsi host0: usb-storage 1-1:1.0
[   12.195010] usbcore: registered new interface driver usb-storage
[   12.226672] ga12: ga12_ctrl_open()
[   12.230132] ga12: ga12_ctrl_mmap() 
[   12.233763] ga12: phys address: 0xc1040000 
[   12.238032] ga12: ctrl_mmap  start=76240000 end=76300000
[   12.263891] ga12: ga12_fifo_open()
[   12.270128] ga12: fifo_mmap done (ret=0) 
[   12.274159] ga12: start=6e440000 end=76240000
[   12.295283] ttyS1 - failed to request DMA
[   13.230986] scsi 0:0:0:0: Direct-Access     Kingston DataTraveler 2.0 6.16 PQ: 0 ANSI: 0 CCS
[   13.242690] sd 0:0:0:0: [sda] 498687 512-byte logical blocks: (255 MB/243 MiB)
[   13.250894] sd 0:0:0:0: [sda] Write Protect is off
[   13.255938] sd 0:0:0:0: [sda] Mode Sense: 45 00 00 08
[   13.256225] sd 0:0:0:0: [sda] No Caching mode page found
[   13.262583] sd 0:0:0:0: [sda] Assuming drive cache: write through
[   13.275777]  sda: sda1
[   13.282417] sd 0:0:0:0: [sda] Attached SCSI removable disk
 
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