Lines Matching +full:dra7 +full:- +full:dma +full:- +full:crossbar
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
28 the event should be assigned and <1> is the mux selection for in the crossbar.
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>;
65 /* Requesting crossbar input 49 and 50 */
67 dma-names = "tx", "rx";