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| author | Maxime Ripard <maxime.ripard@bootlin.com> | 2019-04-16 11:27:59 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-04-16 13:20:14 +0300 |
| commit | c3e2485d5f4f8c605c67c0c0ac237be45438edd1 (patch) | |
| tree | e94a3d07411a45121660354579b45d57382795cb /Documentation/devicetree/bindings/usb/generic-ehci.yaml | |
| parent | c93bcace1098ff4be518649187a763004275b79b (diff) | |
| download | linux-c3e2485d5f4f8c605c67c0c0ac237be45438edd1.tar.xz | |
dt-bindings: usb: Convert the generic EHCI binding to YAML
The generic EHCI binding is used by many controllers that are using the
EHCI spec.
Convert that binding to a YAML description to enable the validation on all
the nodes using that binding.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/devicetree/bindings/usb/generic-ehci.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/usb/generic-ehci.yaml | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/usb/generic-ehci.yaml b/Documentation/devicetree/bindings/usb/generic-ehci.yaml new file mode 100644 index 000000000000..d3b4f6415920 --- /dev/null +++ b/Documentation/devicetree/bindings/usb/generic-ehci.yaml @@ -0,0 +1,95 @@ +# SPDX-License-Identifier: GPL-2.0 +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/usb/generic-ehci.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: USB EHCI Controller Device Tree Bindings + +allOf: + - $ref: "usb-hcd.yaml" + +maintainers: + - Greg Kroah-Hartman <gregkh@linuxfoundation.org> + +properties: + compatible: + contains: + const: generic-ehci + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + resets: + minItems: 1 + maxItems: 4 + + clocks: + minItems: 1 + maxItems: 4 + description: | + In case the Renesas R-Car Gen3 SoCs: + - if a host only channel: first clock should be host. + - if a USB DRD channel: first clock should be host and second + one should be peripheral + + big-endian: + $ref: /schemas/types.yaml#/definitions/flag + description: + Set this flag for HCDs with big endian descriptors and big + endian registers. + + big-endian-desc: + $ref: /schemas/types.yaml#/definitions/flag + description: + Set this flag for HCDs with big endian descriptors. + + big-endian-regs: + $ref: /schemas/types.yaml#/definitions/flag + description: + Set this flag for HCDs with big endian registers. + + has-transaction-translator: + $ref: /schemas/types.yaml#/definitions/flag + description: + Set this flag if EHCI has a Transaction Translator built into + the root hub. + + needs-reset-on-resume: + $ref: /schemas/types.yaml#/definitions/flag + description: + Set this flag to force EHCI reset after resume. + + phys: true + +required: + - compatible + - reg + - interrupts + +additionalProperties: false + +examples: + - | + ehci@e0000300 { + compatible = "ibm,usb-ehci-440epx", "generic-ehci"; + interrupt-parent = <&UIC0>; + interrupts = <0x1a 4>; + reg = <0 0xe0000300 90 0 0xe0000390 70>; + big-endian; + }; + + - | + ehci0: usb@1c14000 { + compatible = "allwinner,sun4i-a10-ehci", "generic-ehci"; + reg = <0x01c14000 0x100>; + interrupts = <39>; + clocks = <&ahb_gates 1>; + phys = <&usbphy 1>; + phy-names = "usb"; + }; + +... |