162306a36Sopenharmony_ciNXP LPC18xx/43xx DMA MUX (DMA request router) 262306a36Sopenharmony_ci 362306a36Sopenharmony_ciRequired properties: 462306a36Sopenharmony_ci- compatible: "nxp,lpc1850-dmamux" 562306a36Sopenharmony_ci- reg: Memory map for accessing module 662306a36Sopenharmony_ci- #dma-cells: Should be set to <3>. 762306a36Sopenharmony_ci * 1st cell contain the master dma request signal 862306a36Sopenharmony_ci * 2nd cell contain the mux value (0-3) for the peripheral 962306a36Sopenharmony_ci * 3rd cell contain either 1 or 2 depending on the AHB 1062306a36Sopenharmony_ci master used. 1162306a36Sopenharmony_ci- dma-requests: Number of DMA requests for the mux 1262306a36Sopenharmony_ci- dma-masters: phandle pointing to the DMA controller 1362306a36Sopenharmony_ci 1462306a36Sopenharmony_ciThe DMA controller node need to have the following poroperties: 1562306a36Sopenharmony_ci- dma-requests: Number of DMA requests the controller can handle 1662306a36Sopenharmony_ci 1762306a36Sopenharmony_ciExample: 1862306a36Sopenharmony_ci 1962306a36Sopenharmony_cidmac: dma@40002000 { 2062306a36Sopenharmony_ci compatible = "nxp,lpc1850-gpdma", "arm,pl080", "arm,primecell"; 2162306a36Sopenharmony_ci arm,primecell-periphid = <0x00041080>; 2262306a36Sopenharmony_ci reg = <0x40002000 0x1000>; 2362306a36Sopenharmony_ci interrupts = <2>; 2462306a36Sopenharmony_ci clocks = <&ccu1 CLK_CPU_DMA>; 2562306a36Sopenharmony_ci clock-names = "apb_pclk"; 2662306a36Sopenharmony_ci #dma-cells = <2>; 2762306a36Sopenharmony_ci dma-channels = <8>; 2862306a36Sopenharmony_ci dma-requests = <16>; 2962306a36Sopenharmony_ci lli-bus-interface-ahb1; 3062306a36Sopenharmony_ci lli-bus-interface-ahb2; 3162306a36Sopenharmony_ci mem-bus-interface-ahb1; 3262306a36Sopenharmony_ci mem-bus-interface-ahb2; 3362306a36Sopenharmony_ci memcpy-burst-size = <256>; 3462306a36Sopenharmony_ci memcpy-bus-width = <32>; 3562306a36Sopenharmony_ci}; 3662306a36Sopenharmony_ci 3762306a36Sopenharmony_cidmamux: dma-mux { 3862306a36Sopenharmony_ci compatible = "nxp,lpc1850-dmamux"; 3962306a36Sopenharmony_ci #dma-cells = <3>; 4062306a36Sopenharmony_ci dma-requests = <64>; 4162306a36Sopenharmony_ci dma-masters = <&dmac>; 4262306a36Sopenharmony_ci}; 4362306a36Sopenharmony_ci 4462306a36Sopenharmony_ciuart0: serial@40081000 { 4562306a36Sopenharmony_ci compatible = "nxp,lpc1850-uart", "ns16550a"; 4662306a36Sopenharmony_ci reg = <0x40081000 0x1000>; 4762306a36Sopenharmony_ci reg-shift = <2>; 4862306a36Sopenharmony_ci interrupts = <24>; 4962306a36Sopenharmony_ci clocks = <&ccu2 CLK_APB0_UART0>, <&ccu1 CLK_CPU_UART0>; 5062306a36Sopenharmony_ci clock-names = "uartclk", "reg"; 5162306a36Sopenharmony_ci dmas = <&dmamux 1 1 2 5262306a36Sopenharmony_ci &dmamux 2 1 2>; 5362306a36Sopenharmony_ci dma-names = "tx", "rx"; 5462306a36Sopenharmony_ci}; 55