Documentation/devicetree/bindings/usb/dwc3.txt

   1 synopsys DWC3 CORE
   2
   3 DWC3- USB3 CONTROLLER
   4
   5 Required properties:
   6  - compatible: must be "snps,dwc3"
   7  - reg : Address and length of the register set for the device
   8  - interrupts: Interrupts used by the dwc3 controller.
   9
  10 Optional properties:
  11  - usb-phy : array of phandle for the PHY device.  The first element
  12    in the array is expected to be a handle to the USB2/HS PHY and
  13    the second element is expected to be a handle to the USB3/SS PHY
  14  - phys: from the *Generic PHY* bindings
  15  - phy-names: from the *Generic PHY* bindings
  16  - tx-fifo-resize: determines if the FIFO *has* to be reallocated.
  17  - snps,usb3_lpm_capable: determines if platform is USB3 LPM capable
  18  - snps,disable_scramble_quirk: true when SW should disable data scrambling.
  19         Only really useful for FPGA builds.
  20  - snps,has-lpm-erratum: true when DWC3 was configured with LPM Erratum enabled
  21  - snps,lpm-nyet-threshold: LPM NYET threshold
  22  - snps,u2exit_lfps_quirk: set if we want to enable u2exit lfps quirk
  23  - snps,u2ss_inp3_quirk: set if we enable P3 OK for U2/SS Inactive quirk
  24  - snps,req_p1p2p3_quirk: when set, the core will always request for
  25                         P1/P2/P3 transition sequence.
  26  - snps,del_p1p2p3_quirk: when set core will delay P1/P2/P3 until a certain
  27                         amount of 8B10B errors occur.
  28  - snps,del_phy_power_chg_quirk: when set core will delay PHY power change
  29                         from P0 to P1/P2/P3.
  30  - snps,lfps_filter_quirk: when set core will filter LFPS reception.
  31  - snps,rx_detect_poll_quirk: when set core will disable a 400us delay to start
  32                         Polling LFPS after RX.Detect.
  33  - snps,tx_de_emphasis_quirk: when set core will set Tx de-emphasis value.
  34  - snps,tx_de_emphasis: the value driven to the PHY is controlled by the
  35                         LTSSM during USB3 Compliance mode.
  36  - snps,dis_u3_susphy_quirk: when set core will disable USB3 suspend phy.
  37  - snps,dis_u2_susphy_quirk: when set core will disable USB2 suspend phy.
  38  - snps,is-utmi-l1-suspend: true when DWC3 asserts output signal
  39                         utmi_l1_suspend_n, false when asserts utmi_sleep_n
  40  - snps,hird-threshold: HIRD threshold
  41
  42 This is usually a subnode to DWC3 glue to which it is connected.
  43
  44 dwc3@4a030000 {
  45         compatible = "snps,dwc3";
  46         reg = <0x4a030000 0xcfff>;
  47         interrupts = <0 92 4>
  48         usb-phy = <&usb2_phy>, <&usb3,phy>;
  49         tx-fifo-resize;
  50 };