Hi João, Joao Pinto <Joao.Pinto@xxxxxxxxxxxx> writes: > I am trying to bring up a USB 3.0 Host Controller with an ARM64 platform (Juno) > and I was also getting the dma issue discussed in this thread: > > https://www.mail-archive.com/linux-usb@xxxxxxxxxxxxxxx/msg73137.html > > I then applied Grygorii Strashko' patch and managed to have a bus instantiated: > > DWC3 logs: > # dmesg | grep dwc3 > dwc3 60000000.dwc3: assigned reserved memory node junoipk@60000000 > > chci logs: > xhci-hcd xhci-hcd.0.auto: xHCI Host Controller > xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 3 > xhci-hcd xhci-hcd.0.auto: hcc params 0x0220fe65 hci version 0x110 quirks 0x00010010 > xhci-hcd xhci-hcd.0.auto: irq 30, io mem 0x60000000 > usb usb3: New USB device found, idVendor=1d6b, idProduct=0002 > usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1 > usb usb3: Product: xHCI Host Controller > usb usb3: Manufacturer: Linux 4.6.0-rc5 xhci-hcd Kudos for using new kernel :-) > usb usb3: SerialNumber: xhci-hcd.0.auto > hub 3-0:1.0: USB hub found > hub 3-0:1.0: 1 port detected > xhci-hcd xhci-hcd.0.auto: xHCI Host Controller > xhci-hcd xhci-hcd.0.auto: new USB bus registered, assigned bus number 4 > usb usb4: We don't know the algorithms for LPM for this host, disabling LPM. > usb usb4: New USB device found, idVendor=1d6b, idProduct=0003 > usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1 > usb usb4: Product: xHCI Host Controller > usb usb4: Manufacturer: Linux 4.6.0-rc5 xhci-hcd > usb usb4: SerialNumber: xhci-hcd.0.auto > hub 4-0:1.0: USB hub found > hub 4-0:1.0: 1 port detected > usbcore: registered new interface driver usb-storage > > The problem now is when I insert a pendrive nothing really happens, not sure why > exactly. > > Could you give me an hint? Do you get any interrupts at all ? When a pen drive is attached, XHCI should interrupt and it should see a port status change. Check /proc/interrupts before and after connecting this pendrive of yours. -- balbi
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