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Subject[PATCH v4 1/2] dt-bindings: usb: Add binding for the TI wrapper for Cadence USB3 controller
Date
TI platforms have a wrapper module around the Cadence USB3
controller. Add binding information for that.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Cc: Rob Herring <robh@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
---
.../devicetree/bindings/usb/ti,j721e-usb.yaml | 86 +++++++++++++++++++
1 file changed, 86 insertions(+)
create mode 100644 Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml

diff --git a/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml b/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
new file mode 100644
index 000000000000..5f5264b2e9ad
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/ti,j721e-usb.yaml
@@ -0,0 +1,86 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/usb/ti,j721e-usb.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Bindings for the TI wrapper module for the Cadence USBSS-DRD controller
+
+maintainers:
+ - Roger Quadros <rogerq@ti.com>
+
+properties:
+ compatible:
+ items:
+ - const: ti,j721e-usb
+
+ reg:
+ description: module registers
+
+ power-domains:
+ description:
+ PM domain provider node and an args specifier containing
+ the USB device id value. See,
+ Documentation/devicetree/bindings/soc/ti/sci-pm-domain.txt
+
+ clocks:
+ description: Clock phandles to usb2_refclk and lpm_clk
+ minItems: 2
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: ref
+ - const: lpm
+
+ ti,usb2-only:
+ description:
+ If present, it restricts the controller to USB2.0 mode of
+ operation. Must be present if USB3 PHY is not available
+ for USB.
+ type: boolean
+
+ ti,vbus-divider:
+ description:
+ Should be present if USB VBUS line is connected to the
+ VBUS pin of the SoC via a 1/3 voltage divider.
+ type: boolean
+
+required:
+ - compatible
+ - reg
+ - power-domains
+ - clocks
+ - clock-names
+
+examples:
+ - |
+ #include <dt-bindings/soc/ti,sci_pm_domain.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ 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>;
+
+ 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
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