[PATCH v6 0/4] usb: xhci: Load Raspberry Pi 4 VL805's firmware

[Nicolas Saenz Julienne]

Hi Stefan,

On Sat, 2020-08-01 at 14:25 +0200, Stefan Agner wrote:
> Hi Nicolas,
> 
> I do have USB MSD boot working with at least two USB flash drives
> successfully.
> 
> I now tried using a USB NVMe enclosure (ICY BOX with a JMicron chip in
> it). It seems that U-Boot has troubles enumerating the device at first,
> but "usb reset" helps:
> 
> U-Boo 2020.07 (Jul 25 2020 - 06:55:15 +0000)
> 
> DRAM:  1.9 GiB
> RPI 4 Model B (0xb03112)
> MMC:   mmcnr at 7e300000: 1, emmc2 at 7e340000: 0
> In:    serial
> Out:   serial
> Err:   serial
> Net:   eth0: genet at 7d580000
> PCIe BRCM: link up, 5.0 Gbps x1 (SSC)
> startig USB...
> Bus xhci_pci: Register 5000420 NbrPorts 5
> Starting the controller
> USB XHCI 1.00
> scanning bus xhci_pci for devces... Device NOT ready
>    Request Sense returned 02 04 01
> 4 USB Device(s) found
>        scanning usb for storage devices... 0 Sorage Device(s) found
> Card did not respond to voltage select!
> Card did not respond to voltage select!
> 
> genet at 7d580000 Waiting for PHY auto negotiation to complete... done
> BOOTP broadcast 1
> DHCP client bound to address 192.168.80.226 (3 ms
> ====> Ctrl+C
> HassOS> <INTERRUPT>
> HassOS> usb tree
> USB device tree:
>   1  Hub (5 Gb/s, 0mA)
>   |  U-Boot XHCI Host Controller
>   |
>   +-2  MassStorage (5 Gb/s, 224mA)
>   |    JMicron USB 3.1 Storage Device DD56419884B3E
>   |
>   +-3  Hub (480 Mb/s, 100A)
>     |   USB2.0 Hub
>     |
>     +-4  Human Interface (12 Mb/s, 98mA)
>          Logitech USB Receiver
> 
> HassOS> ls usb 0:1
> HassOS> usb reset
> resetting USB...
> Bus xhci_pci: Register 5000420 NbrPorts 5
> Starting the controller
> USB XHCI 1.00
> scanning bus xhci_ci for devices... 4 USB Device(s) found
>        scanning usb for storage devices... 1 Storage Device(s) found
> HassOS>ls usb 0:1
>     41499   bcm2711-rpi-4-b.dtb
>      2382   boot.scr
>        57   cmdline.txt
>      1785   config.txt
>            overlays/
>    488304   u-boot.bin
>   2272992   start4.elf.orig
>   2277376   start4.elf
>      5405   fixup4.dat.orig
>      5407   fiup4.dat
> 
> 9 file(s), 1 dir(s)
> 
> HassOS> usb tree
> USB device tree:
>   1  Hub (5 Gb/s, 0mA)
>   |  U-Boot XHCI Host Controller
>   |
>   |+-2  Mass Storage (5 Gb/s, 224mA)
>   |    JMicron USB 3.1 Storage Device DD56419884B3E
>   |
>   +-3  Hub (480 b/s, 100mA)
>     |   USB2.0 Hub
>     |
>     +-4  Human Interface (12 Mb/s, 98mA)
>          Logitech USB Receier
> 
> The device then boots and works fine.
> 
> 
> Do you happen to know if there is some tunable in U-Boot which might
> help?

Sorry but nothing comes to mind. I'm not aware of similar issues.

Regards,
Nicolas