Lines Matching +full:dma +full:- +full:safe +full:- +full:map

1 Texas Instruments DMA Crossbar (DMA request router)
4 - compatible:	"ti,dra7-dma-crossbar" for DRA7xx DMA crossbar
5 		"ti,am335x-edma-crossbar" for AM335x and AM437x
6 - reg:		Memory map for accessing module
7 - #dma-cells:	Should be set to match with the DMA controller's dma-cells
8 		for ti,dra7-dma-crossbar and <3> for ti,am335x-edma-crossbar.
9 - dma-requests:	Number of DMA requests the crossbar can receive
10 - dma-masters:	phandle pointing to the DMA controller
12 The DMA controller node need to have the following poroperties:
13 - dma-requests:	Number of DMA requests the controller can handle
16 - ti,dma-safe-map: Safe routing value for unused request lines
17 - ti,reserved-dma-request-ranges: DMA request ranges which should not be used
18 		when mapping xbar input to DMA request, they are either
23 When requesting channel via ti,dra7-dma-crossbar, the DMA clinet must request
24 the DMA event number as crossbar ID (input to the DMA crossbar).
26 For ti,am335x-edma-crossbar: the meaning of parameters of dmas for clients:
27 dmas = <&edma_xbar 12 0 1>; where <12> is the DMA request number, <0> is the TC
29 When mux 0 is used the DMA channel can be requested directly from edma node.
33 /* DMA controller */
34 sdma: dma-controller@4a056000 {
35 	compatible = "ti,omap4430-sdma";
41 	#dma-cells = <1>;
42 	dma-channels = <32>;
43 	dma-requests = <127>;
46 /* DMA crossbar */
47 sdma_xbar: dma-router@4a002b78 {
48 	compatible = "ti,dra7-dma-crossbar";
50 	#dma-cells = <1>;
51 	dma-requests = <205>;
52 	ti,dma-safe-map = <0>;
53 	/* Protect the sDMA request ranges: 10-14 and 100-126 */
54 	ti,reserved-dma-request-ranges = <10 5>, <100 27>;
55 	dma-masters = <&sdma>;
58 /* DMA client */
60 	compatible = "ti,omap4-uart";
62 	interrupts-extended = <&gic GIC_SPI 67 IRQ_TYPE_LEVEL_HIGH>;
64 	clock-frequency = <48000000>;
67 	dma-names = "tx", "rx";