Date: Tue, 27 Nov 2018 11:53:29 +0000 From: Tom Jones <thj@freebsd.org> To: freebsd-usb@freebsd.org Subject: Missing USB on Intel Cherryview Message-ID: <20181127115327.GA84974@tom-desk.erg.abdn.ac.uk>
next in thread | raw e-mail | index | archive | help
Hi, I have a Intel Cherryview based laptop with Braswell XHCI. The laptop has two usb ports, a USB-A port routed to USB3 (this works) and a USB-C port routed a USB 2 bus. The USB bus routed to the USB-C port does not appear under FreeBSD. xhci0: <Intel Braswell USB 3.0 controller> mem 0xa1a00000-0xa1a0ffff at device 20.0 on pci0 xhci0: 32 bytes context size, 64-bit DMA usbus0 on xhci0 usbus0: 5.0Gbps Super Speed USB v3.0 There is full (if slightly old) dmesg here: https://dmesgd.nycbug.org/index.cgi?do=view&id=3213 It is picket up on Linux: [ 19.200330] uhci_hcd: USB Universal Host Controller Interface driver [ 19.200827] xhci_hcd 0000:00:14.0: xHCI Host Controller [ 19.200855] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 1 [ 19.202004] xhci_hcd 0000:00:14.0: hcc params 0x200077c1 hci version 0x100 quirks 0x0000000081509810 [ 19.202019] xhci_hcd 0000:00:14.0: cache line size of 64 is not supported [ 19.202522] usb usb1: New USB device found, idVendor=1d6b, idProduct=0002, bcdDevice= 4.18 [ 19.202526] usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 19.202529] usb usb1: Product: xHCI Host Controller [ 19.202534] usb usb1: Manufacturer: Linux 4.18.0-10-generic xhci-hcd [ 19.202537] usb usb1: SerialNumber: 0000:00:14.0 [ 19.203545] hub 1-0:1.0: USB hub found [ 19.203579] hub 1-0:1.0: 7 ports detected [ 19.205628] xhci_hcd 0000:00:14.0: xHCI Host Controller [ 19.205638] xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 2 [ 19.205649] xhci_hcd 0000:00:14.0: Host supports USB 3.0 SuperSpeed [ 19.205764] usb usb2: New USB device found, idVendor=1d6b, idProduct=0003, bcdDevice= 4.18 [ 19.205768] usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1 [ 19.205771] usb usb2: Product: xHCI Host Controller [ 19.205774] usb usb2: Manufacturer: Linux 4.18.0-10-generic xhci-hcd [ 19.205777] usb usb2: SerialNumber: 0000:00:14.0 [ 19.206868] hub 2-0:1.0: USB hub found [ 19.206907] hub 2-0:1.0: 6 ports detected It is also picked up on NetBSD, but conversations with stejda@ raise some doubts about support there. xhci0 at pci0 dev 20 function 0: vendor 8086 product 22b5 (rev. 0x34) xhci0: interrupting at msi0 vec 0 xhci0: xHCI version 1.0 usb0 at xhci0: USB revision 3.0 usb1 at xhci0: USB revision 2.0 I have done some digging, but don't the background with usb to really know where to look. Could someone give me some pointers for what to try? - Tom -- - [tj]
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20181127115327.GA84974>