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,disable_scramble_quirk: true when SW should disable data scrambling.
18 Only really useful for FPGA builds.
19 - snps,has-lpm-erratum: true when DWC3 was configured with LPM Erratum enabled
20 - snps,lpm-nyet-threshold: LPM NYET threshold
21 - snps,u2exit_lfps_quirk: set if we want to enable u2exit lfps quirk
22 - snps,u2ss_inp3_quirk: set if we enable P3 OK for U2/SS Inactive quirk
23 - snps,req_p1p2p3_quirk: when set, the core will always request for
24 P1/P2/P3 transition sequence.
25 - snps,del_p1p2p3_quirk: when set core will delay P1/P2/P3 until a certain
26 amount of 8B10B errors occur.
27 - snps,del_phy_power_chg_quirk: when set core will delay PHY power change
28 from P0 to P1/P2/P3.
29 - snps,lfps_filter_quirk: when set core will filter LFPS reception.
30 - snps,rx_detect_poll_quirk: when set core will disable a 400us delay to start
31 Polling LFPS after RX.Detect.
32 - snps,tx_de_emphasis_quirk: when set core will set Tx de-emphasis value.
33 - snps,tx_de_emphasis: the value driven to the PHY is controlled by the
34 LTSSM during USB3 Compliance mode.
35 - snps,dis_u3_susphy_quirk: when set core will disable USB3 suspend phy.
36 - snps,dis_u2_susphy_quirk: when set core will disable USB2 suspend phy.
37 - snps,is-utmi-l1-suspend: true when DWC3 asserts output signal
38 utmi_l1_suspend_n, false when asserts utmi_sleep_n
39 - snps,hird-threshold: HIRD threshold
40
41This is usually a subnode to DWC3 glue to which it is connected.
42
43dwc3@4a030000 {
44 compatible = "snps,dwc3";
45 reg = <0x4a030000 0xcfff>;
46 interrupts = <0 92 4>
47 usb-phy = <&usb2_phy>, <&usb3,phy>;
48 tx-fifo-resize;
49};