[U-Boot] [PATCH 00/14] usb: xhci: Add interrupt transfer support and full speed device support

[Stefan Roese]

Hi Bin,

On 18.09.2017 17:26, Stefan Roese wrote:
> On 18.09.2017 17:13, Marek Vasut wrote:
>> On 09/18/2017 03:40 PM, Bin Meng wrote:
>>>
>>> This adds the missing interrupt transfer support to xHCI driver, so
>>> that devices like USB keyboard that uses interrupt transfer when
>>> CONFIG_SYS_USB_EVENT_POLL is defined can work.
>>>
>>> This also adds full speed device support. Unlike low/high/super speed
>>> devices, full speed device may report its endpoint 0 max packet size
>>> as 8/16/32/64. xHCI driver guesses 64 for the first attempt to get the
>>> initial 8 bytes device descriptor, and later adjusts the context for
>>> endpoint 0.
>>>
>>> This series also made several updates to xHCI driver to conform with
>>> the spec.
>>>
>>> This series is available at u-boot-x86/xhci-working for testing.
>> Looks good to me. Stefan, can you please give A-B/R-B on the series ?
>> I'd like to pick it for 2017.09 :)
> 
> That would be 2017.11, right?
> 
> Sure, I'll review and test this series most likely tomorrow.

I did a quick test and most really looks very good. Thanks for all
this great work on this xHCI stuff.

BUT, issuing a few commands, I was able to hang my board. This
sequence is reproducible on my board:


U-Boot 2017.09-00246-g28758a2992 (Sep 18 2017 - 17:29:52 +0200)

CPU: x86_64, vendor Intel, device 30679h
DRAM:  4 GiB
MMC:   pci_mmc: 0, pci_mmc: 1, pci_mmc: 2
SF: Detected w25q64cv with page size 256 Bytes, erase size 4 KiB, total 8 MiB
Model: theadorable-x86-DFI-BT700
Net:   No ethernet found.
scanning bus for devices...
Target spinup took 0 ms.
SATA link 1 timeout.
AHCI 0001.0300 32 slots 2 ports 3 Gbps 0x3 impl SATA mode
flags: 64bit ncq stag pm led clo pio slum part sxs 
  Device 0: (0:0) Vendor: ATA Prod.: SanDisk Ultra II Rev: X411
            Type: Hard Disk
            Capacity: 457862.8 MB = 447.1 GB (937703088 x 512)
960138 bytes read in 72 ms (12.7 MiB/s)
Video: 800x600x16
Hit any key to stop autoboot:  0 
=> 
=> 
=> usb reset
resetting USB...
USB0:   Register 7000820 NbrPorts 7
Starting the controller
USB XHCI 1.00
scanning bus 0 for devices... cannot reset port 1!?
7 USB Device(s) found
       scanning usb for storage devices... 2 Storage Device(s) found
=> usb tree
USB device tree:
  1  Hub (5 Gb/s, 0mA)
  |  U-Boot XHCI Host Controller 
  |
  +-2  Hub (480 Mb/s, 100mA)
  | |
  | +-5  Hub (12 Mb/s, 100mA)
  |    
  +-3  Hub (480 Mb/s, 2mA)
  | |
  | +-6  Mass Storage (480 Mb/s, 98mA)
  | |    USBest Technology USB Mass Storage Device 09092207fbf0c4
  | |  
  | +-7  Mass Storage (480 Mb/s, 500mA)
  |      General  USB Flash Disk   000000000000034B
  |    
  +-4  Vendor specific (5 Gb/s, 64mA)
       Realtek USB 10/100/1000 LAN 000002000000
     
=> ls usb 1
            System Volume Information/
 16779264   PRIME-B350-PLUS-ASUS-0613.CAP
 16779264   PRIME-B350-PLUS-ASUS-0805.CAP

3 file(s), 1 dir(s)

=> usb tree
USB device tree:
  1  Hub (5 Gb/s, 0mA)
  |  U-Boot XHCI Host Controller 
  |
  +-2  Hub (480 Mb/s, 100mA)
  | |
  | +-5  Hub (12 Mb/s, 100mA)
  |    
  +-3  Hub (480 Mb/s, 2mA)
  | |
  | +-6  Mass Storage (480 Mb/s, 98mA)
  | |    USBest Technology USB Mass Storage Device 09092207fbf0c4
  | |  
  | +-7  Mass Storage (480 Mb/s, 500mA)
  |   |  General  USB Flash Disk   000000000000034B
  |   |
  |   |General Protection
EIP: 0010:[<7b56f724>] EFLAGS: 00010246
Original EIP :[<fff1e724>]
EAX: 7b33ac18 EBX: 00000000 ECX: ffffffbf EDX: 7b33ac18
ESI: 7b33ad30 EDI: 00000006 EBP: 7b37b188 ESP: 7b33ac08
 DS: 0018 ES: 0018 FS: 0020 GS: 0018 SS: 0018
CR0: 00000033 CR2: 00000000 CR3: 00000000 CR4: 00000600
DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000
DR6: ffff0ff0 DR7: 00000400
Stack:
    0x7b33ac48 : 0x7b37b160
    0x7b33ac44 : 0x00000000
    0x7b33ac40 : 0x00000000
    0x7b33ac3c : 0x00000000
    0x7b33ac38 : 0x00000000
    0x7b33ac34 : 0x20202020
    0x7b33ac30 : 0x52474d54
    0x7b33ac2c : 0x7b37baa8
    0x7b33ac28 : 0x7b37baa8
    0x7b33ac24 : 0x7b33ad30
    0x7b33ac20 : 0x7b5aa84e
    0x7b33ac1c : 0x7b55f008
    0x7b33ac18 : 0xffffffbf
    0x7b33ac14 : 0xcc0a06e4
    0x7b33ac10 : 0xc0e88a40
    0x7b33ac0c : 0x568ad686
--->0x7b33ac08 : 0x7b56f776
    0x7b33ac04 : 0x00010246
    0x7b33ac00 : 0x00000010
    0x7b33abfc : 0x7b56f724
### ERROR ### Please RESET the board ###


Are you able to reproduce this on your board(s) as well? Any ideas
on this? Please let me know if I can do any further tests.

Thanks,
Stefan