| Message ID | 20191021131305.8689-1-rogerq@ti.com |
|---|---|
| Headers | show |
| Series | usb: cdns3: Add TI wrapper | expand |
Hi, On 21/10/2019 16:13, Roger Quadros wrote: > TI platforms have a wrapper module around the Cadence USB3 > controller. Add binding information for that. Please ignore this. I missed converting this to yaml format. Will send v3. cheers, -roger > > Cc: Rob Herring <robh@kernel.org> > Signed-off-by: Roger Quadros <rogerq@ti.com> > Signed-off-by: Sekhar Nori <nsekhar@ti.com> > --- > .../devicetree/bindings/usb/ti,j721e-usb.txt | 52 +++++++++++++++++++ > 1 file changed, 52 insertions(+) > create mode 100644 Documentation/devicetree/bindings/usb/ti,j721e-usb.txt > > diff --git a/Documentation/devicetree/bindings/usb/ti,j721e-usb.txt b/Documentation/devicetree/bindings/usb/ti,j721e-usb.txt > new file mode 100644 > index 000000000000..bac57c26b09b > --- /dev/null > +++ b/Documentation/devicetree/bindings/usb/ti,j721e-usb.txt > @@ -0,0 +1,52 @@ > +Binding for the TI specific wrapper for the Cadence USBSS-DRD controller > + > +Required properties: > + - compatible: Should contain "ti,j721e-usb" > + - reg: Physical base address and size of the wrappers register area. > + - power-domains: Should contain a phandle to a PM domain provider node > + and an args specifier containing the USB device id > + value. This property is as per the binding documentation: > + Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt > + - clocks: Clock phandles to usb2_refclk and lpm_clk > + - clock-names: Should contain "ref" and "lpm" > + > +Optional properties: > + - ti,usb2-only: If present, it restricts the controller to USB2.0 mode of > + operation. Must be present if USB3 PHY is not available > + for USB. > + - ti,vbus-divider: Should be present if USB VBUS line is connected to the > + VBUS pin of the SoC via a 1/3 voltage divider. > + > +Sub-nodes: > +The USB2 PHY and the Cadence USB3 controller should be the sub-nodes. > + > +Example: > + > + ti_usb0: cdns_usb@4104000 { > + compatible = "ti,j721e-usb"; > + reg = <0x00 0x4104000 0x00 0x100>; > + power-domains = <&k3_pds 288 TI_SCI_PD_EXCLUSIVE>; > + clocks = <&k3_clks 288 15>, <&k3_clks 288 3>; > + clock-names = "ref", "lpm"; > + assigned-clocks = <&k3_clks 288 15>; /* USB2_REFCLK */ > + assigned-clock-parents = <&k3_clks 288 16>; /* HFOSC0 */ > + #address-cells = <2>; > + #size-cells = <2>; > + ranges; > + > + usb0: usb@6000000 { > + compatible = "cdns,usb3"; > + reg = <0x00 0x6000000 0x00 0x10000>, > + <0x00 0x6010000 0x00 0x10000>, > + <0x00 0x6020000 0x00 0x10000>; > + reg-names = "otg", "xhci", "dev"; > + interrupts = <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>, /* irq.0 */ > + <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>, /* irq.6 */ > + <GIC_SPI 120 IRQ_TYPE_LEVEL_HIGH>; /* otgirq.0 */ > + interrupt-names = "host", > + "peripheral", > + "otg"; > + maximum-speed = "super-speed"; > + dr_mode = "otg"; > + }; > + }; > -- Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
Hi, Texas Instruments SoCs have a wrapper module around the Cadence USB3 core. It takes care of clocking and powering the core and providing initial configuration to the core. This series adds the driver for the TI wrapper and associated DT binding document. This is for -next kernel. Thanks. cheers, -roger Changelog: v2: - dt-binding fixes to address Rob's comments - convert dt-binding document name to DT schema - get rid of bootstrap properties - fix DT example Roger Quadros (2): dt-bindings: usb: Add binding for the TI wrapper for Cadence USB3 controller usb: cdns3: Add TI specific wrapper driver .../devicetree/bindings/usb/ti,j721e-usb.txt | 52 ++++ drivers/usb/cdns3/Kconfig | 10 + drivers/usb/cdns3/Makefile | 1 + drivers/usb/cdns3/cdns3-ti.c | 236 ++++++++++++++++++ 4 files changed, 299 insertions(+) create mode 100644 Documentation/devicetree/bindings/usb/ti,j721e-usb.txt create mode 100644 drivers/usb/cdns3/cdns3-ti.c -- Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki