@@ -40,91 +40,3 @@ Example device nodes:
phy-names = "usb2-phy", "usb3-phy";
};
};
-
-Amlogic Meson G12A DWC3 USB SoC Controller Glue
-
-The Amlogic G12A embeds a DWC3 USB IP Core configured for USB2 and USB3
-in host-only mode, and a DWC2 IP Core configured for USB2 peripheral mode
-only.
-
-A glue connects the DWC3 core to USB2 PHYs and optionnaly to an USB3 PHY.
-
-One of the USB2 PHY can be re-routed in peripheral mode to a DWC2 USB IP.
-
-The DWC3 Glue controls the PHY routing and power, an interrupt line is
-connected to the Glue to serve as OTG ID change detection.
-
-Required properties:
-- compatible: Should be "amlogic,meson-g12a-usb-ctrl"
-- clocks: a handle for the "USB" clock
-- resets: a handle for the shared "USB" reset line
-- reg: The base address and length of the registers
-- interrupts: the interrupt specifier for the OTG detection
-- phys: handle to used PHYs on the system
- - a <0> phandle can be used if a PHY is not used
-- phy-names: names of the used PHYs on the system :
- - "usb2-phy0" for USB2 PHY0 if USBHOST_A port is used
- - "usb2-phy1" for USB2 PHY1 if USBOTG_B port is used
- - "usb3-phy0" for USB3 PHY if USB3_0 is used
-- dr_mode: should be "host", "peripheral", or "otg" depending on
- the usage and configuration of the OTG Capable port.
- - "host" and "peripheral" means a fixed Host or Device only connection
- - "otg" means the port can be used as both Host or Device and
- be switched automatically using the OTG ID pin.
-
-Optional properties:
-- vbus-supply: should be a phandle to the regulator controlling the VBUS
- power supply when used in OTG switchable mode
-
-Required child nodes:
-
-A child node must exist to represent the core DWC3 IP block. The name of
-the node is not important. The content of the node is defined in dwc3.txt.
-
-A child node must exist to represent the core DWC2 IP block. The name of
-the node is not important. The content of the node is defined in dwc2.txt.
-
-PHY documentation is provided in the following places:
-- Documentation/devicetree/bindings/phy/meson-g12a-usb2-phy.txt
-- Documentation/devicetree/bindings/phy/meson-g12a-usb3-pcie-phy.txt
-
-Example device nodes:
- usb: usb@ffe09000 {
- compatible = "amlogic,meson-g12a-usb-ctrl";
- reg = <0x0 0xffe09000 0x0 0xa0>;
- interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
- #address-cells = <2>;
- #size-cells = <2>;
- ranges;
-
- clocks = <&clkc CLKID_USB>;
- resets = <&reset RESET_USB>;
-
- dr_mode = "otg";
-
- phys = <&usb2_phy0>, <&usb2_phy1>,
- <&usb3_pcie_phy PHY_TYPE_USB3>;
- phy-names = "usb2-phy0", "usb2-phy1", "usb3-phy0";
-
- dwc2: usb@ff400000 {
- compatible = "amlogic,meson-g12a-usb", "snps,dwc2";
- reg = <0x0 0xff400000 0x0 0x40000>;
- interrupts = <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>;
- clocks = <&clkc CLKID_USB1_DDR_BRIDGE>;
- clock-names = "ddr";
- phys = <&usb2_phy1>;
- dr_mode = "peripheral";
- g-rx-fifo-size = <192>;
- g-np-tx-fifo-size = <128>;
- g-tx-fifo-size = <128 128 16 16 16>;
- };
-
- dwc3: usb@ff500000 {
- compatible = "snps,dwc3";
- reg = <0x0 0xff500000 0x0 0x100000>;
- interrupts = <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>;
- dr_mode = "host";
- snps,dis_u2_susphy_quirk;
- snps,quirk-frame-length-adjustment;
- };
- };
new file mode 100644
@@ -0,0 +1,128 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2019 BayLibre, SAS
+%YAML 1.2
+---
+$id: "http://devicetree.org/schemas/usb/amlogic,meson-g12a-usb-ctrl.yaml#"
+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
+
+title: Amlogic Meson G12A DWC3 USB SoC Controller Glue
+
+maintainers:
+ - Neil Armstrong <narmstrong@baylibre.com>
+
+description: |
+ The Amlogic G12A embeds a DWC3 USB IP Core configured for USB2 and USB3
+ in host-only mode, and a DWC2 IP Core configured for USB2 peripheral mode
+ only.
+
+ A glue connects the DWC3 core to USB2 PHYs and optionally to an USB3 PHY.
+
+ One of the USB2 PHYs can be re-routed in peripheral mode to a DWC2 USB IP.
+
+ The DWC3 Glue controls the PHY routing and power, an interrupt line is
+ connected to the Glue to serve as OTG ID change detection.
+
+properties:
+ compatible:
+ enum:
+ - amlogic,meson-g12a-usb-ctrl
+
+ ranges: true
+
+ "#address-cells":
+ enum: [ 1, 2 ]
+
+ "#size-cells":
+ enum: [ 1, 2 ]
+
+ clocks:
+ minItems: 1
+
+ resets:
+ minItems: 1
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ phy-names:
+ items:
+ - const: usb2-phy0 # USB2 PHY0 if USBHOST_A port is used
+ - const: usb2-phy1 # USB2 PHY1 if USBOTG_B port is used
+ - const: usb3-phy0 # USB3 PHY if USB3_0 is used
+
+ phys:
+ minItems: 1
+ maxItems: 3
+
+ dr_mode: true
+
+ power-domains:
+ maxItems: 1
+
+ vbus-supply:
+ description: VBUS power supply when used in OTG switchable mode
+ maxItems: 1
+
+patternProperties:
+ "^usb@[0-9a-f]+$":
+ type: object
+
+additionalProperties: false
+
+required:
+ - compatible
+ - "#address-cells"
+ - "#size-cells"
+ - ranges
+ - clocks
+ - resets
+ - reg
+ - interrupts
+ - phy-names
+ - phys
+ - dr_mode
+
+examples:
+ - |
+ usb: usb@ffe09000 {
+ compatible = "amlogic,meson-g12a-usb-ctrl";
+ reg = <0x0 0xffe09000 0x0 0xa0>;
+ interrupts = <16>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ clocks = <&clkc_usb>;
+ resets = <&reset_usb>;
+
+ dr_mode = "otg";
+
+ phys = <&usb2_phy0>, <&usb2_phy1>, <&usb3_phy0>;
+ phy-names = "usb2-phy0", "usb2-phy1", "usb3-phy0";
+
+ dwc2: usb@ff400000 {
+ compatible = "amlogic,meson-g12a-usb", "snps,dwc2";
+ reg = <0xff400000 0x40000>;
+ interrupts = <31>;
+ clocks = <&clkc_usb1>;
+ clock-names = "ddr";
+ phys = <&usb2_phy1>;
+ dr_mode = "peripheral";
+ g-rx-fifo-size = <192>;
+ g-np-tx-fifo-size = <128>;
+ g-tx-fifo-size = <128 128 16 16 16>;
+ };
+
+ dwc3: usb@ff500000 {
+ compatible = "snps,dwc3";
+ reg = <0xff500000 0x100000>;
+ interrupts = <30>;
+ dr_mode = "host";
+ snps,dis_u2_susphy_quirk;
+ snps,quirk-frame-length-adjustment;
+ };
+ };
+