tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1synopsys DWC3 CORE
2
3DWC3- USB3 CONTROLLER
4
5Required 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
10Optional 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 - snps,hsphy_interface: High-Speed PHY interface selection between "utmi" for
42 UTMI+ and "ulpi" for ULPI when the DWC_USB3_HSPHY_INTERFACE has value 3.
43
44This is usually a subnode to DWC3 glue to which it is connected.
45
46dwc3@4a030000 {
47 compatible = "snps,dwc3";
48 reg = <0x4a030000 0xcfff>;
49 interrupts = <0 92 4>
50 usb-phy = <&usb2_phy>, <&usb3,phy>;
51 tx-fifo-resize;
52};