3 This file documents the parameters for the dwc3-st driver.
4 This driver controls the glue logic used to configure the dwc3 core on
5 STiH407 based platforms.
8 - compatible : must be "st,stih407-dwc3"
9 - reg : glue logic base address and USB syscfg ctrl register offset
10 - reg-names : should be "reg-glue" and "syscfg-reg"
11 - st,syscon : should be phandle to system configuration node which
12 encompasses the glue registers
13 - resets : list of phandle and reset specifier pairs. There should be two entries, one
14 for the powerdown and softreset lines of the usb3 IP
15 - reset-names : list of reset signal names. Names should be "powerdown" and "softreset"
16 See: Documentation/devicetree/bindings/reset/st,sti-powerdown.txt
17 See: Documentation/devicetree/bindings/reset/reset.txt
19 - #address-cells, #size-cells : should be '1' if the device has sub-nodes
22 - pinctl-names : A pinctrl state named "default" must be defined
23 See: Documentation/devicetree/bindings/pinctrl/pinctrl-binding.txt
25 - pinctrl-0 : Pin control group
26 See: Documentation/devicetree/bindings/pinctrl/pinctrl-binding.txt
28 - ranges : allows valid 1:1 translation between child's address space and
29 parent's address space
32 The dwc3 core should be added as subnode to ST DWC3 glue as shown in the
33 example below. The DT binding details of dwc3 can be found in:
34 Documentation/devicetree/bindings/usb/dwc3.txt
36 NB: The dr_mode property described in [1] is NOT optional for this driver, as the default value
37 is "otg", which isn't supported by this SoC. Valid dr_mode values for dwc3-st are either "host"
40 [1] Documentation/devicetree/bindings/usb/generic.txt
44 st_dwc3: dwc3@8f94000 {
46 compatible = "st,stih407-dwc3";
47 reg = <0x08f94000 0x1000>, <0x110 0x4>;
48 reg-names = "reg-glue", "syscfg-reg";
49 st,syscfg = <&syscfg_core>;
50 resets = <&powerdown STIH407_USB3_POWERDOWN>,
51 <&softreset STIH407_MIPHY2_SOFTRESET>;
52 reset-names = "powerdown",
56 pinctrl-names = "default";
57 pinctrl-0 = <&pinctrl_usb3>;
61 compatible = "snps,dwc3";
62 reg = <0x09900000 0x100000>;
63 interrupts = <GIC_SPI 155 IRQ_TYPE_NONE>;
65 phys-names = "usb2-phy", "usb3-phy";
66 phys = <&usb2_picophy2>, <&phy_port2 MIPHY_TYPE_USB>;