Aw: [PATCH 03/11] usb: xhci: add quirks flag to support MediaTek xHCI 0.96

[Frank Wunderlich]

> Gesendet: Donnerstag, 13. August 2020 um 05:25 Uhr
> Von: "Chunfeng Yun" <chunfeng.yun at mediatek.com>
> Betreff: [PATCH 03/11] usb: xhci: add quirks flag to support MediaTek xHCI 0.96
>
> There some vendor quirks for MTK xHCI 0.96 host controller:
> 1. It defines some extra SW scheduling parameters for HW
>    to minimize the scheduling effort for synchronous and
>    interrupt endpoints. The parameters are put into reseved
>    DWs of slot context and endpoint context.
> 2. Its TDS in  Normal TRB defines a number of packets that
>    remains to be transferred for a TD after processing all
>    Max packets in all previous TRBs.

Tested full series on Bananapi-R2 and R64 (can post DTS-nodes later or can be found here [1])

BPI-R2> usb start
starting USB...
Bus usb at 1a1c0000: hcd: 0x1a1c0000, ippc: 0x1a1c4700
u2p:1, u3p:1
Register 200010f NbrPorts 2
Starting the controller
USB XHCI 0.96
Bus usb at 1a240000: hcd: 0x1a240000, ippc: 0x1a244700
u2p:1, u3p:1
Register 200010f NbrPorts 2
Starting the controller
USB XHCI 0.96
scanning bus usb at 1a1c0000 for devices... 1 USB Device(s) found
scanning bus usb at 1a240000 for devices... 2 USB Device(s) found
       scanning usb for storage devices... 1 Storage Device(s) found
BPI-R2> usb tree
USB device tree:
  1  Hub (5 Gb/s, 0mA)
     U-Boot XHCI Host Controller

  1  Hub (5 Gb/s, 0mA)
  |  U-Boot XHCI Host Controller
  |
  +-2  Mass Storage (480 Mb/s, 200mA)
       USB      Flash Disk       906B030002F4

BPI-R2> ls usb 0:1
            efi/
  4767728   kernel

1 file(s), 1 dir(s)

=========================================================

BPI-R64> usb start
starting USB...
Bus usb at 1a0c0000: hcd: 0x1a0c0000, ippc: 0x1a0c4700
u2p:2, u3p:1
Register 300010f NbrPorts 3
Starting the controller
USB XHCI 0.96
scanning bus usb at 1a0c0000 for devices... 2 USB Device(s) found
       scanning usb for storage devices... 1 Storage Device(s) found
BPI-R64> ls usb 0:1
       91   mcurom.md5
            System Volume Information/

1 file(s), 1 dir(s)

BPI-R64>

Tested-By: Frank Wunderlich <frank-w at public-files.de>

[1] https://github.com/frank-w/u-boot/commits/2020-10-bpi