3 DWC3- USB3 CONTROLLER. Complies to the generic USB binding properties
4 as described in 'usb/generic.txt'
7 - compatible: must be "snps,dwc3"
8 - reg : Address and length of the register set for the device
9 - interrupts: Interrupts used by the dwc3 controller.
10 - clock-names: list of clock names. Ideally should be "ref",
11 "bus_early", "suspend" but may be less or more.
12 - clocks: list of phandle and clock specifier pairs corresponding to
13 entries in the clock-names property.
16 clocks are optional if the parent node (i.e. glue-layer) is compatible to
18 "cavium,octeon-7130-usb-uctl"
20 "samsung,exynos5250-dwusb3"
21 "samsung,exynos5433-dwusb3"
22 "samsung,exynos7-dwusb3"
28 "rockchip,rk3399-dwc3"
32 - usb-phy : array of phandle for the PHY device. The first element
33 in the array is expected to be a handle to the USB2/HS PHY and
34 the second element is expected to be a handle to the USB3/SS PHY
35 - phys: from the *Generic PHY* bindings
36 - phy-names: from the *Generic PHY* bindings; supported names are "usb2-phy"
38 - resets: set of phandle and reset specifier pairs
39 - snps,usb2-lpm-disable: indicate if we don't want to enable USB2 HW LPM
40 - snps,usb3_lpm_capable: determines if platform is USB3 LPM capable
41 - snps,dis-start-transfer-quirk: when set, disable isoc START TRANSFER command
42 failure SW work-around for DWC_usb31 version 1.70a-ea06
44 - snps,disable_scramble_quirk: true when SW should disable data scrambling.
45 Only really useful for FPGA builds.
46 - snps,has-lpm-erratum: true when DWC3 was configured with LPM Erratum enabled
47 - snps,lpm-nyet-threshold: LPM NYET threshold
48 - snps,u2exit_lfps_quirk: set if we want to enable u2exit lfps quirk
49 - snps,u2ss_inp3_quirk: set if we enable P3 OK for U2/SS Inactive quirk
50 - snps,req_p1p2p3_quirk: when set, the core will always request for
51 P1/P2/P3 transition sequence.
52 - snps,del_p1p2p3_quirk: when set core will delay P1/P2/P3 until a certain
53 amount of 8B10B errors occur.
54 - snps,del_phy_power_chg_quirk: when set core will delay PHY power change
56 - snps,lfps_filter_quirk: when set core will filter LFPS reception.
57 - snps,rx_detect_poll_quirk: when set core will disable a 400us delay to start
58 Polling LFPS after RX.Detect.
59 - snps,tx_de_emphasis_quirk: when set core will set Tx de-emphasis value.
60 - snps,tx_de_emphasis: the value driven to the PHY is controlled by the
61 LTSSM during USB3 Compliance mode.
62 - snps,dis_u3_susphy_quirk: when set core will disable USB3 suspend phy.
63 - snps,dis_u2_susphy_quirk: when set core will disable USB2 suspend phy.
64 - snps,dis_enblslpm_quirk: when set clears the enblslpm in GUSB2PHYCFG,
65 disabling the suspend signal to the PHY.
66 - snps,dis-u1-entry-quirk: set if link entering into U1 needs to be disabled.
67 - snps,dis-u2-entry-quirk: set if link entering into U2 needs to be disabled.
68 - snps,dis_rxdet_inp3_quirk: when set core will disable receiver detection
69 in PHY P3 power state.
70 - snps,dis-u2-freeclk-exists-quirk: when set, clear the u2_freeclk_exists
71 in GUSB2PHYCFG, specify that USB2 PHY doesn't provide
72 a free-running PHY clock.
73 - snps,dis-del-phy-power-chg-quirk: when set core will change PHY power
74 from P0 to P1/P2/P3 without delay.
75 - snps,dis-tx-ipgap-linecheck-quirk: when set, disable u2mac linestate check
77 - snps,parkmode-disable-ss-quirk: when set, all SuperSpeed bus instances in
78 park mode are disabled.
79 - snps,dis_metastability_quirk: when set, disable metastability workaround.
80 CAUTION: use only if you are absolutely sure of it.
81 - snps,dis-split-quirk: when set, change the way URBs are handled by the
82 driver. Needed to avoid -EPROTO errors with usbhid
83 on some devices (Hikey 970).
84 - snps,is-utmi-l1-suspend: true when DWC3 asserts output signal
85 utmi_l1_suspend_n, false when asserts utmi_sleep_n
86 - snps,hird-threshold: HIRD threshold
87 - snps,hsphy_interface: High-Speed PHY interface selection between "utmi" for
88 UTMI+ and "ulpi" for ULPI when the DWC_USB3_HSPHY_INTERFACE has value 3.
89 - snps,quirk-frame-length-adjustment: Value for GFLADJ_30MHZ field of GFLADJ
90 register for post-silicon frame length adjustment when the
91 fladj_30mhz_sdbnd signal is invalid or incorrect.
92 - snps,rx-thr-num-pkt-prd: periodic ESS RX packet threshold count - host mode
93 only. Set this and rx-max-burst-prd to a valid,
94 non-zero value 1-16 (DWC_usb31 programming guide
95 section 1.2.4) to enable periodic ESS RX threshold.
96 - snps,rx-max-burst-prd: max periodic ESS RX burst size - host mode only. Set
97 this and rx-thr-num-pkt-prd to a valid, non-zero value
98 1-16 (DWC_usb31 programming guide section 1.2.4) to
99 enable periodic ESS RX threshold.
100 - snps,tx-thr-num-pkt-prd: periodic ESS TX packet threshold count - host mode
101 only. Set this and tx-max-burst-prd to a valid,
102 non-zero value 1-16 (DWC_usb31 programming guide
103 section 1.2.3) to enable periodic ESS TX threshold.
104 - snps,tx-max-burst-prd: max periodic ESS TX burst size - host mode only. Set
105 this and tx-thr-num-pkt-prd to a valid, non-zero value
106 1-16 (DWC_usb31 programming guide section 1.2.3) to
107 enable periodic ESS TX threshold.
109 - <DEPRECATED> tx-fifo-resize: determines if the FIFO *has* to be reallocated.
110 - snps,incr-burst-type-adjustment: Value for INCR burst type of GSBUSCFG0
111 register, undefined length INCR burst type enable and INCRx type.
112 When just one value, which means INCRX burst mode enabled. When
113 more than one value, which means undefined length INCR burst type
114 enabled. The values can be 1, 4, 8, 16, 32, 64, 128 and 256.
116 - in addition all properties from usb-xhci.txt from the current directory are
120 This is usually a subnode to DWC3 glue to which it is connected.
123 compatible = "snps,dwc3";
124 reg = <0x4a030000 0xcfff>;
125 interrupts = <0 92 4>
126 usb-phy = <&usb2_phy>, <&usb3,phy>;
127 snps,incr-burst-type-adjustment = <1>, <4>, <8>, <16>;