81 lines
2 KiB
Plaintext
81 lines
2 KiB
Plaintext
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TI DA8xx MUSB
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~~~~~~~~~~~~~
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For DA8xx/OMAP-L1x/AM17xx/AM18xx platforms.
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Required properties:
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~~~~~~~~~~~~~~~~~~~~
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- compatible : Should be set to "ti,da830-musb".
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- reg: Offset and length of the USB controller register set.
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- interrupts: The USB interrupt number.
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- interrupt-names: Should be set to "mc".
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- dr_mode: The USB operation mode. Should be one of "host", "peripheral" or "otg".
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- phys: Phandle for the PHY device
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- phy-names: Should be "usb-phy"
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- dmas: specifies the dma channels
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- dma-names: specifies the names of the channels. Use "rxN" for receive
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and "txN" for transmit endpoints. N specifies the endpoint number.
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Optional properties:
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~~~~~~~~~~~~~~~~~~~~
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- vbus-supply: Phandle to a regulator providing the USB bus power.
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DMA
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~~~
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- compatible: ti,da830-cppi41
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- reg: offset and length of the following register spaces: CPPI DMA Controller,
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CPPI DMA Scheduler, Queue Manager
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- reg-names: "controller", "scheduler", "queuemgr"
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- #dma-cells: should be set to 2. The first number represents the
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channel number (0 … 3 for endpoints 1 … 4).
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The second number is 0 for RX and 1 for TX transfers.
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- #dma-channels: should be set to 4 representing the 4 endpoints.
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Example:
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usb_phy: usb-phy {
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compatible = "ti,da830-usb-phy";
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#phy-cells = <0>;
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};
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usb0: usb@200000 {
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compatible = "ti,da830-musb";
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reg = <0x00200000 0x1000>;
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ranges;
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#address-cells = <1>;
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#size-cells = <1>;
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interrupts = <58>;
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interrupt-names = "mc";
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dr_mode = "host";
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vbus-supply = <&usb_vbus>;
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phys = <&usb_phy 0>;
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phy-names = "usb-phy";
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dmas = <&cppi41dma 0 0 &cppi41dma 1 0
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&cppi41dma 2 0 &cppi41dma 3 0
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&cppi41dma 0 1 &cppi41dma 1 1
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&cppi41dma 2 1 &cppi41dma 3 1>;
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dma-names =
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"rx1", "rx2", "rx3", "rx4",
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"tx1", "tx2", "tx3", "tx4";
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cppi41dma: dma-controller@201000 {
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compatible = "ti,da830-cppi41";
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reg = <0x201000 0x1000
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0x202000 0x1000
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0x204000 0x4000>;
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reg-names = "controller", "scheduler", "queuemgr";
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interrupts = <58>;
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#dma-cells = <2>;
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#dma-channels = <4>;
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};
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};
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