1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
4 $id: http://devicetree.org/schemas/phy/qcom,usb-snps-femto-v2.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Qualcomm Synopsys Femto High-Speed USB PHY V2
10 - Wesley Cheng <quic_wcheng@quicinc.com>
13 Qualcomm High-Speed USB PHY
19 - qcom,sc8180x-usb-hs-phy
20 - qcom,usb-snps-femto-v2-phy
23 - qcom,sa8775p-usb-hs-phy
24 - qcom,sc8280xp-usb-hs-phy
25 - const: qcom,usb-snps-hs-5nm-phy
28 - qcom,sc7280-usb-hs-phy
29 - qcom,sdx55-usb-hs-phy
30 - qcom,sdx65-usb-hs-phy
31 - qcom,sm6375-usb-hs-phy
32 - qcom,sm8150-usb-hs-phy
33 - qcom,sm8250-usb-hs-phy
34 - qcom,sm8350-usb-hs-phy
35 - qcom,sm8450-usb-hs-phy
36 - const: qcom,usb-snps-hs-7nm-phy
46 - description: rpmhcc ref clock
54 - description: PHY core reset
57 description: phandle to the regulator VDD supply node.
60 description: phandle to the regulator 1.8V supply node.
63 description: phandle to the regulator 3.3V supply node.
65 qcom,hs-disconnect-bp:
67 This adjusts the voltage level for the threshold used to
68 detect a disconnect event at the host.
69 The hardware accepts only discrete values. The value closest to the
70 provided input will be chosen as the override value for this param.
74 qcom,squelch-detector-bp:
76 This adjusts the voltage level for the threshold used to
77 detect valid high-speed data.
78 The hardware accepts only discrete values. The value closest to the
79 provided input will be chosen as the override value for this param.
85 This adjusts the high-speed DC level voltage.
86 The hardware accepts only discrete values. The value closest to the
87 provided input will be chosen as the override value for this param.
91 qcom,pre-emphasis-duration-bp:
93 This signal controls the duration for which the
94 HS pre-emphasis current is sourced onto DP<#> or DM<#>.
95 The HS Transmitter pre-emphasis duration is defined in terms of
96 unit amounts. One unit of pre-emphasis duration is approximately
97 650 ps and is defined as 1X pre-emphasis duration.
98 The hardware accepts only discrete values. The value closest to the
99 provided input will be chosen as the override value for this param.
103 qcom,pre-emphasis-amplitude-bp:
105 This signal controls the amount of current sourced to
106 DP<#> and DM<#> after a J-to-K or K-to-J transition.
107 The HS Transmitter pre-emphasis current is defined in terms of unit
108 amounts. One unit amount is approximately 2 mA and is defined as
109 1X pre-emphasis current.
110 The hardware accepts only discrete values. The value closest to the
111 provided input will be chosen as the override value for this param.
115 qcom,hs-rise-fall-time-bp:
117 This adjusts the rise/fall times of the high-speed waveform.
118 The hardware accepts only discrete values. The value closest to the
119 provided input will be chosen as the override value for this param.
123 qcom,hs-crossover-voltage-microvolt:
125 This adjusts the voltage at which the DP<#> and DM<#>
126 signals cross while transmitting in HS mode.
127 The hardware accepts only discrete values. The value closest to the
128 provided input will be chosen as the override value for this param.
132 qcom,hs-output-impedance-micro-ohms:
134 In some applications, there can be significant series resistance
135 on the D+ and D- paths between the transceiver and cable. This adjusts
136 the driver source impedance to compensate for added series
137 resistance on the USB. The hardware accepts only discrete values. The
138 value closest to the provided input will be chosen as the override value
143 qcom,ls-fs-output-impedance-bp:
145 This adjusts the low- and full-speed single-ended source
146 impedance while driving high. The following adjustment values are based
147 on nominal process, voltage, and temperature.
148 The hardware accepts only discrete values. The value closest to the
149 provided input will be chosen as the override value for this param.
164 additionalProperties: false
168 #include <dt-bindings/clock/qcom,rpmh.h>
169 #include <dt-bindings/clock/qcom,gcc-sm8150.h>
171 compatible = "qcom,sm8150-usb-hs-phy", "qcom,usb-snps-hs-7nm-phy";
172 reg = <0x088e2000 0x400>;
175 clocks = <&rpmhcc RPMH_CXO_CLK>;
178 resets = <&gcc GCC_QUSB2PHY_PRIM_BCR>;
180 vdda-pll-supply = <&vdd_usb_hs_core>;
181 vdda33-supply = <&vdda_usb_hs_3p1>;
182 vdda18-supply = <&vdda_usb_hs_1p8>;