Hi,
We cannot seem to get USBO1 on the TK1 to operate at super speed (SS) mode. lsusb output:
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub <----USBH4
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub <----USBH2
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub <----USBO1
- TK1 image is 2.7b3-20170630 (not the mainline one).
- We tried on both our own board we rolled, as well as the Ixora V1.0A, and got similar results.
- SS devices enumerate as high speed (HS) on USBO1 and USBH2, but enumerate as SS on USBH4.
- We made the modifications to enable USB3.0 (same as the TX1 board requirements).
- We are using the same USB3.0 connector on our board for USBO1 and USBH4, on the Ixora board we are using the bottom of X8 (with the jumper set appropriately).
- USBO1 gets assigned the eHCI driver instead of the xHCI driver like USBH4 and USBH2.
My understanding is that if we ground the USBO1_ID pin it will run in host mode all the time (same as setting jumper JP2 on the Ixora board), which should be SS capable. But on both the Ixora and our own board it still runs in high speed mode. Is there a driver I’m missing or a setting in the kernel that needs to be changed? Any help would be greatly appreciated!
lsusb -v output for USBO1:
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0
bDeviceProtocol 1 Single TT
bMaxPacketSize0 64
idVendor 0x1d6b Linux Foundation
idProduct 0x0002 2.0 root hub
bcdDevice 3.10
iManufacturer 3 Linux 3.10.40-2.7.3+gf328e55 ehci_hcd
iProduct 2 Tegra EHCI Host Controller
iSerial 1 tegra-ehci.0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 12
Hub Descriptor:
bLength 9
bDescriptorType 41
nNbrPorts 1
wHubCharacteristic 0x0009
Per-port power switching
Per-port overcurrent protection
TT think time 8 FS bits
bPwrOn2PwrGood 10 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x00
PortPwrCtrlMask 0xff
Hub Port Status:
Port 1: 0000.0100 power
can't get device qualifier: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable
Device Status: 0x0001
Self Powered
lsusb -v output for USBH4:
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 3.00
bDeviceClass 9 Hub
bDeviceSubClass 0
bDeviceProtocol 3
bMaxPacketSize0 9
idVendor 0x1d6b Linux Foundation
idProduct 0x0003 3.0 root hub
bcdDevice 3.10
iManufacturer 3 Linux 3.10.40-2.7.3+gf328e55 tegra-xhci
iProduct 2 Nvidia xHCI Host Controller
iSerial 1 tegra-xhci
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 31
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 12
bMaxBurst 0
Hub Descriptor:
bLength 12
bDescriptorType 42
nNbrPorts 2
wHubCharacteristic 0x000a
No power switching (usb 1.0)
Per-port overcurrent protection
bPwrOn2PwrGood 10 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
bHubDecLat 0.0 micro seconds
wHubDelay 0 nano seconds
DeviceRemovable 0x00
Hub Port Status:
Port 1: 0000.02a0 5Gbps power Rx.Detect
Port 2: 0000.0280 5Gbps power SS.disabled
Binary Object Store Descriptor:
bLength 5
bDescriptorType 15
wTotalLength 15
bNumDeviceCaps 1
SuperSpeed USB Device Capability:
bLength 10
bDescriptorType 16
bDevCapabilityType 3
bmAttributes 0x00
wSpeedsSupported 0x0008
Device can operate at SuperSpeed (5Gbps)
bFunctionalitySupport 3
Lowest fully-functional device speed is SuperSpeed (5Gbps)
bU1DevExitLat 2 micro seconds
bU2DevExitLat 64 micro seconds
can't get debug descriptor: Resource temporarily unavailable
Device Status: 0x0003
Self Powered
Remote Wakeup Enabled