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-NXP LPC18xx/43xx DMA MUX (DMA request router)
-
-Required properties:
-- compatible: "nxp,lpc1850-dmamux"
-- reg: Memory map for accessing module
-- #dma-cells: Should be set to <3>.
- * 1st cell contain the master dma request signal
- * 2nd cell contain the mux value (0-3) for the peripheral
- * 3rd cell contain either 1 or 2 depending on the AHB
- master used.
-- dma-requests: Number of DMA requests for the mux
-- dma-masters: phandle pointing to the DMA controller
-
-The DMA controller node need to have the following poroperties:
-- dma-requests: Number of DMA requests the controller can handle
-
-Example:
-
-dmac: dma@40002000 {
- compatible = "nxp,lpc1850-gpdma", "arm,pl080", "arm,primecell";
- arm,primecell-periphid = <0x00041080>;
- reg = <0x40002000 0x1000>;
- interrupts = <2>;
- clocks = <&ccu1 CLK_CPU_DMA>;
- clock-names = "apb_pclk";
- #dma-cells = <2>;
- dma-channels = <8>;
- dma-requests = <16>;
- lli-bus-interface-ahb1;
- lli-bus-interface-ahb2;
- mem-bus-interface-ahb1;
- mem-bus-interface-ahb2;
- memcpy-burst-size = <256>;
- memcpy-bus-width = <32>;
-};
-
-dmamux: dma-mux {
- compatible = "nxp,lpc1850-dmamux";
- #dma-cells = <3>;
- dma-requests = <64>;
- dma-masters = <&dmac>;
-};
-
-uart0: serial@40081000 {
- compatible = "nxp,lpc1850-uart", "ns16550a";
- reg = <0x40081000 0x1000>;
- reg-shift = <2>;
- interrupts = <24>;
- clocks = <&ccu2 CLK_APB0_UART0>, <&ccu1 CLK_CPU_UART0>;
- clock-names = "uartclk", "reg";
- dmas = <&dmamux 1 1 2
- &dmamux 2 1 2>;
- dma-names = "tx", "rx";
-};