xref: /freebsd/sys/contrib/device-tree/Bindings/mips/cavium/dma-engine.txt (revision c66ec88fed842fbaad62c30d510644ceb7bd2d71)
1*c66ec88fSEmmanuel Vadot* DMA Engine.
2*c66ec88fSEmmanuel Vadot
3*c66ec88fSEmmanuel VadotThe Octeon DMA Engine transfers between the Boot Bus and main memory.
4*c66ec88fSEmmanuel VadotThe DMA Engine will be referred to by phandle by any device that is
5*c66ec88fSEmmanuel Vadotconnected to it.
6*c66ec88fSEmmanuel Vadot
7*c66ec88fSEmmanuel VadotProperties:
8*c66ec88fSEmmanuel Vadot- compatible: "cavium,octeon-5750-bootbus-dma"
9*c66ec88fSEmmanuel Vadot
10*c66ec88fSEmmanuel Vadot  Compatibility with all cn52XX, cn56XX and cn6XXX SOCs.
11*c66ec88fSEmmanuel Vadot
12*c66ec88fSEmmanuel Vadot- reg: The base address of the DMA Engine's register bank.
13*c66ec88fSEmmanuel Vadot
14*c66ec88fSEmmanuel Vadot- interrupts: A single interrupt specifier.
15*c66ec88fSEmmanuel Vadot
16*c66ec88fSEmmanuel VadotExample:
17*c66ec88fSEmmanuel Vadot	dma0: dma-engine@1180000000100 {
18*c66ec88fSEmmanuel Vadot		compatible = "cavium,octeon-5750-bootbus-dma";
19*c66ec88fSEmmanuel Vadot		reg = <0x11800 0x00000100 0x0 0x8>;
20*c66ec88fSEmmanuel Vadot		interrupts = <0 63>;
21*c66ec88fSEmmanuel Vadot	};
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