forked from Minki/linux
d0450272a6
Simply document new compatibility string. As a previous patch adds a generic R-Car Gen2 compatibility string there appears to be no need for a driver updates. Signed-off-by: Simon Horman <horms+renesas@verge.net.au> Acked-by: Rob Herring <robh@kernel.org> Acked-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
40 lines
1.6 KiB
Plaintext
40 lines
1.6 KiB
Plaintext
Renesas Electronics USBHS driver
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Required properties:
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- compatible: Must contain one or more of the following:
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- "renesas,usbhs-r8a7790" for r8a7790 (R-Car H2) compatible device
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- "renesas,usbhs-r8a7791" for r8a7791 (R-Car M2-W) compatible device
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- "renesas,usbhs-r8a7792" for r8a7792 (R-Car V2H) compatible device
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- "renesas,usbhs-r8a7793" for r8a7793 (R-Car M2-N) compatible device
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- "renesas,usbhs-r8a7794" for r8a7794 (R-Car E2) compatible device
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- "renesas,usbhs-r8a7795" for r8a7795 (R-Car H3) compatible device
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- "renesas,rcar-gen2-usbhs" for R-Car Gen2 compatible device
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- "renesas,rcar-gen3-usbhs" for R-Car Gen3 compatible device
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When compatible with the generic version, nodes must list the
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SoC-specific version corresponding to the platform first followed
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by the generic version.
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- reg: Base address and length of the register for the USBHS
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- interrupts: Interrupt specifier for the USBHS
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- clocks: A list of phandle + clock specifier pairs
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Optional properties:
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- renesas,buswait: Integer to use BUSWAIT register
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- renesas,enable-gpio: A gpio specifier to check GPIO determining if USB
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function should be enabled
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- phys: phandle + phy specifier pair
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- phy-names: must be "usb"
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- dmas: Must contain a list of references to DMA specifiers.
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- dma-names : named "ch%d", where %d is the channel number ranging from zero
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to the number of channels (DnFIFOs) minus one.
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Example:
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usbhs: usb@e6590000 {
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compatible = "renesas,usbhs-r8a7790", "renesas,rcar-gen2-usbhs";
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reg = <0 0xe6590000 0 0x100>;
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interrupts = <0 107 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&mstp7_clks R8A7790_CLK_HSUSB>;
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};
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