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charset="utf-8" Versal Gen2 platform multimedia integrated (MMI) module has a USB3.2 Gen 2x1 Dual Role Device IP. Introduce a new compatibility string to support it. The USB wrapper registers reside in the MMI UDH system-level control registers (SLCR) block, so instead of a dedicated reg property, add xlnx,usb-syscon phandle with four cells specifying register offsets for USB2 PHY, USB3 PHY, USB DRD, and USB power configuration within the SLCR. Signed-off-by: Radhey Shyam Pandey --- Changes for v2: - Add blank line after compatible as suggested by Krzysztof. - Retain the mmi suffix in the compatible string, as this USB 3.2 Gen2 IP from Synopsys is part of the dedicated Multimedia Interface. The Versal Gen2 platform also includes a separate USB 2.0 controller, and the mmi suffix uniquely distinguishes between the two USB controllers. MMI is an independent subsystem particularly targeted for deployment in Multi-Media related applications. The MMI block include following submodules: UDH: USB3.2 Gen 2x1 Dual Role Device, DisplayPort Transmit Controller, Security Module (ESM) for DisplayPort and HDMI Controllers, DP AUX-I2C PHY. - For MMI USB define parent address space i.e UDH block. - Fix inconsistent MHz spacing to use SI convention with spaces. - Move description before $ref and items in xlnx,usb-syscon property. - Restore original zynqmp-dwc3 example, add new versal2-mmi-dwc3 example. - Use 'usb' node name (without unit address) for versal2 example since it has no reg property. - Use 1/1 address/size configuration in versal2 example, use lowercase hex in syscon offsets. --- .../devicetree/bindings/usb/dwc3-xilinx.yaml | 70 ++++++++++++++++++- 1 file changed, 67 insertions(+), 3 deletions(-) diff --git a/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml b/Docum= entation/devicetree/bindings/usb/dwc3-xilinx.yaml index d6823ef5f9a7..5e31b961aff7 100644 --- a/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml +++ b/Documentation/devicetree/bindings/usb/dwc3-xilinx.yaml @@ -15,6 +15,8 @@ properties: - enum: - xlnx,zynqmp-dwc3 - xlnx,versal-dwc3 + - xlnx,versal2-mmi-dwc3 + reg: maxItems: 1 =20 @@ -37,8 +39,9 @@ properties: A list of phandle and clock-specifier pairs for the clocks listed in clock-names. items: - - description: Master/Core clock, has to be >=3D 125 MHz - for SS operation and >=3D 60MHz for HS operation. + - description: Master/Core clock, has to be >=3D 156.25 MHz in SSP + mode, >=3D 125 MHz for SS operation and >=3D 60 MHz for HS + operation. - description: Clock source to core during PHY power down. =20 clock-names: @@ -79,6 +82,20 @@ properties: description: GPIO used for the reset ulpi-phy maxItems: 1 =20 + xlnx,usb-syscon: + description: + Phandle to the MMI UDH system-level control register (SLCR) syscon + node, with four cells specifying the register offsets for USB2 PHY, + USB3 PHY, USB DRD, and USB power configuration respectively. + $ref: /schemas/types.yaml#/definitions/phandle-array + items: + - items: + - description: phandle to MMI UDH SLCR syscon node + - description: USB2 PHY register offset within SLCR + - description: USB3 PHY register offset within SLCR + - description: USB DRD register offset within SLCR + - description: USB power register offset within SLCR + # Required child node: =20 patternProperties: @@ -87,7 +104,6 @@ patternProperties: =20 required: - compatible - - reg - "#address-cells" - "#size-cells" - ranges @@ -104,6 +120,7 @@ allOf: contains: enum: - xlnx,versal-dwc3 + - xlnx,versal2-mmi-dwc3 then: properties: resets: @@ -117,6 +134,26 @@ allOf: reset-names: minItems: 3 =20 + - if: + properties: + compatible: + contains: + enum: + - xlnx,zynqmp-dwc3 + - xlnx,versal-dwc3 + then: + required: + - reg + + - if: + properties: + compatible: + contains: + const: xlnx,versal2-mmi-dwc3 + then: + required: + - xlnx,usb-syscon + additionalProperties: false =20 examples: @@ -156,3 +193,30 @@ examples: }; }; }; + - | + #include + #include + #include + usb { + #address-cells =3D <1>; + #size-cells =3D <1>; + compatible =3D "xlnx,versal2-mmi-dwc3"; + clocks =3D <&zynqmp_clk 32>, <&zynqmp_clk 34>; + clock-names =3D "bus_clk", "ref_clk"; + power-domains =3D <&zynqmp_firmware PD_USB_0>; + resets =3D <&zynqmp_reset ZYNQMP_RESET_USB1_CORERESET>; + reset-names =3D "usb_crst"; + phys =3D <&psgtr 2 PHY_TYPE_USB3 0 2>; + phy-names =3D "usb3-phy"; + xlnx,usb-syscon =3D <&udh_slcr 0x005c 0x0070 0x00c4 0x00f8>; + ranges; + + usb@fe200000 { + compatible =3D "snps,dwc3"; + reg =3D <0xfe200000 0x40000>; + interrupt-names =3D "host", "otg"; + interrupts =3D <0 65 4>, <0 69 4>; + dr_mode =3D "host"; + dma-coherent; + }; + }; --=20 2.43.0