On 17/06/2019 10:13, Felipe Balbi wrote:
>
> Hi,
>
> Manivannan Sadhasivam <[email protected]> writes:
>> Hello,
>>
>> I'm trying to upstream Designware USB3 host driver present in the Actions
>> Semi S900 SoC. It can successfully detect the USB hub but when any of the
>> USB device got plugged in, it fails with following error:
>>
>> [ 4.365566] usb usb1-port1: connect-debounce failed
>>
>> Full log can be found here: https://pastebin.ubuntu.com/p/PNff5fZkn6/
>>
>> Below is the output of, lsusb -v:
>>
>> Bus 002 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 Unused
>> bDeviceProtocol 3
>> bMaxPacketSize0 9
>> idVendor 0x1d6b Linux Foundation
>> idProduct 0x0003 3.0 root hub
>> bcdDevice 5.02
>> iManufacturer 3 Linux 5.2.0-rc3-00032-gbd970cfc7a82-dirty
>> xhci-hcd
>> iProduct 2 xHCI Host Controller
>> iSerial 1 xhci-hcd.0.auto
>> 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 Unused
>> 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 1
>> 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
>> Binary Object Store Descriptor:
>> bLength 5
>> bDescriptorType 15
>> wTotalLength 15
>> bNumDeviceCaps 1
>> SuperSpeed USB Device Capability:
>> bLength 10
>> bDescriptorType 16
>> bDevCapabilityType 3
>> bmAttributes 0x02
>> Latency Tolerance Messages (LTM) Supported
>> wSpeedsSupported 0x0008
>> Device can operate at SuperSpeed (5Gbps)
>> bFunctionalitySupport 3
>> Lowest fully-functional device speed is SuperSpeed (5Gbps)
>> bU1DevExitLat 0 micro seconds
>> bU2DevExitLat 0 micro seconds
>> Device Status: 0x0001
>> Self Powered
>>
>> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>>
>> Devicetree snippet:
>>
>> usbdrd3_0: usb@e0400000 {
>> compatible = "actions,s900-dwc3";
>> clocks = <&cmu CLK_USB3_480MPLL0>,
>> <&cmu CLK_USB3_480MPHY0>,
>> <&cmu CLK_USB3_5GPHY>,
>> <&cmu CLK_USB3_CCE>,
>> <&cmu CLK_USB3_MAC>;
>> clock-names = "usb3_480mpll0", "usb3_480mphy0",
>> "usb3_5gphy", "usb3_cce",
>> "usb3_mac";
>> resets = <&cmu RESET_USB3>;
>> reset-names = "usb3";
>> power-domains = <&sps S900_PD_USB3>;
>> #address-cells = <2>;
>> #size-cells = <2>;
>> ranges;
>>
>> usbdrd_dwc3_0: dwc3 {
>> compatible = "snps,dwc3";
>> reg = <0x0 0xe0400000 0x0 0x100000>;
>> interrupts = <GIC_SPI 23
>> IRQ_TYPE_LEVEL_HIGH>;
>> usb-phy = <&usb2_phy>, <&usb3_phy>;
>> dr_mode = "host";
>> power-domains = <&sps S900_PD_USB3>;
>> snps,hsphy_interface = "utmi";
>> };
>> };
>>
>> After going through the mailing list looking for similar issue, found that
>> some host controllers works with following quirk:
>>
>> snps,dis_u3_susphy_quirk;
>>
>> I tried that also but it didn't work. Can anyone shed some light on this?
>>
>> PS: USB3 is working fine with vendor kernel 3.10.
>
> Check what's different between mainline and your v3.10 code. Specially
> look for changes in xhci and usbcore.
This kind of error usually happen when the PHY is not working correctly.
I would check that all USB analog power supplies are enabled, PHY is
clocked and powered ON.
Good luck!
--
cheers,
-roger
Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki.
Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
