Hello Felipe, See responses below. > -----Original Message----- > From: Felipe Balbi [mailto:felipe.balbi@xxxxxxxxxxxxxxx] > Sent: Tuesday, January 31, 2017 5:10 AM > To: PURCELL,ANDY (K-Loveland,ex1) <andy_purcell@xxxxxxxxxxxx>; linux- > usb@xxxxxxxxxxxxxxx > Subject: Re: linux USB dwc3 not working > > > Hi Andy, > > andy_purcell@xxxxxxxxxxxx writes: > > Hello, > > > > I am starting work on a board that has the Intel Skylake chipset, > > which has hardware for doing USB-device. > > Not all SKLs have dwc3 enabled. Can you provide the output of lspci? 00:00.0 Host bridge: Intel Corporation Sky Lake Host Bridge/DRAM Registers (rev 07) 00:01.0 PCI bridge: Intel Corporation Sky Lake PCIe Controller (x16) (rev 07) 00:02.0 VGA compatible controller: Intel Corporation Sky Lake Integrated Graphics (rev 06) 00:08.0 System peripheral: Intel Corporation Sky Lake Gaussian Mixture Model 00:14.0 USB controller: Intel Corporation Sunrise Point-H USB 3.0 xHCI Controller (rev 31) 00:14.1 USB controller: Intel Corporation Sunrise Point-H USB Device Controller (OTG) (rev 31) 00:14.2 Signal processing controller: Intel Corporation Sunrise Point-H Thermal subsystem (rev 31) 00:15.0 Signal processing controller: Intel Corporation Sunrise Point-H LPSS I2C Controller #0 (rev 31) 00:15.1 Signal processing controller: Intel Corporation Sunrise Point-H LPSS I2C Controller #1 (rev 31) 00:16.0 Communication controller: Intel Corporation Sunrise Point-H CSME HECI #1 (rev 31) 00:16.3 Serial controller: Intel Corporation Sunrise Point-H KT Redirection (rev 31) 00:17.0 SATA controller: Intel Corporation Sunrise Point-H SATA controller [AHCI mode] (rev 31) 00:1d.0 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #11 (rev f1) 00:1d.3 PCI bridge: Intel Corporation Sunrise Point-H PCI Express Root Port #12 (rev f1) 00:1e.0 Signal processing controller: Intel Corporation Sunrise Point-H LPSS UART #0 (rev 31) 00:1f.0 ISA bridge: Intel Corporation Sunrise Point-H LPC Controller (rev 31) 00:1f.2 Memory controller: Intel Corporation Sunrise Point-H PMC (rev 31) 00:1f.3 Audio device: Intel Corporation Sunrise Point-H HD Audio (rev 31) 00:1f.4 SMBus: Intel Corporation Sunrise Point-H SMBus (rev 31) 00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (2) I219-LM (rev 31) 02:00.0 PCI bridge: PLX Technology, Inc. Device 3380 (rev ab) 03:02.0 PCI bridge: PLX Technology, Inc. Device 3380 (rev ab) > > I need to ask you to try a newer kernel. Can you try v4.9.6 or v4.10-rc6? > I am now running Ubuntu 4.10.0-999-generic. Same results - USB device not working, test modes still not working. > > Using a script, I set up the USB-device to be RNDIS, using functionfs. > > functionfs needs a userspace component, do you have that? Can you try any > other gadget driver like mass storage, for instance? Here's a quick script for > mass storage: > > #!/bin/sh > > dd if=/dev/zero of=/dev/shm/file bs=1M count=1024 > > mount -t configfs none /c > mkdir /c/usb_gadget/g1 > echo 0x18d1 > /c/usb_gadget/g1/idVendor > echo 0xbeef > /c/usb_gadget/g1/idProduct mkdir > /c/usb_gadget/g1/strings/0x409 echo 123456789012 > > /c/usb_gadget/g1/strings/0x409/serialnumber > echo "Intel Corporation" > /c/usb_gadget/g1/strings/0x409/manufacturer > echo "Joule" > /c/usb_gadget/g1/strings/0x409/product > mkdir /c/usb_gadget/g1/functions/mass_storage.1 > mkdir /c/usb_gadget/g1/configs/b.1 > mkdir /c/usb_gadget/g1/configs/b.1/strings/0x409 > echo 500 > /c/usb_gadget/g1/configs/b.1/MaxPower > echo /dev/shm/file > /c/usb_gadget/g1/functions/mass_storage.1/lun.0/file > ln -s /c/usb_gadget/g1/functions/mass_storage.1 > /c/usb_gadget/g1/configs/b.1/f1 echo dwc3.0.auto > /c/usb_gadget/g1/UDC > I run this script, slightly modified, as you suggested. After running this script, I see these 2 lines added to the dmesg output: [ 93.096773] Mass Storage Function, version: 2009/09/11 [ 93.096777] LUN: removable file: (no medium) > > I connect a USB cable from my board to a USB-host. > > My USB analyzer shows nothing happens. No connection, no SETUP > > packets, nothing. > > right, I'm assuming you don't have userspace component for functionfs, so - > >pullup() is never called. > What is the userspace component for functionfs, given that I am setting up mass storage? How do I get it for Ubuntu 4.10.0-999-generic? > > Can you also get the output of: > > grep DCTL regdump > root@apub1:/sys/kernel/debug/dwc3.0.auto# grep DCTL regdump DCTL = 0x80f00000 > > -- > balbi -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
