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| author | Vinod Koul <vinod.koul@intel.com> | 2016-01-06 10:49:18 +0100 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2016-01-06 10:49:18 +0100 |
| commit | 9406de3e4362c379966dd114221e8159d9da5f32 (patch) | |
| tree | cf2f04c645bb494548861555fad8eac30ad7284d /Documentation/devicetree/bindings/dma | |
| parent | Merge branch 'topic/tegra' into for-linus (diff) | |
| parent | dmaengine: ti-dma-crossbar: dra7: Support for reserving DMA event ranges (diff) | |
| download | linux-9406de3e4362c379966dd114221e8159d9da5f32.tar.xz linux-9406de3e4362c379966dd114221e8159d9da5f32.zip | |
Merge branch 'topic/ti-xbar' into for-linus
Diffstat (limited to 'Documentation/devicetree/bindings/dma')
| -rw-r--r-- | Documentation/devicetree/bindings/dma/ti-dma-crossbar.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/dma/ti-dma-crossbar.txt b/Documentation/devicetree/bindings/dma/ti-dma-crossbar.txt index b152a75dceae..aead5869a28d 100644 --- a/Documentation/devicetree/bindings/dma/ti-dma-crossbar.txt +++ b/Documentation/devicetree/bindings/dma/ti-dma-crossbar.txt @@ -14,6 +14,10 @@ The DMA controller node need to have the following poroperties: Optional properties: - ti,dma-safe-map: Safe routing value for unused request lines +- ti,reserved-dma-request-ranges: DMA request ranges which should not be used + when mapping xbar input to DMA request, they are either + allocated to be used by for example the DSP or they are used as + memcpy channels in eDMA. Notes: When requesting channel via ti,dra7-dma-crossbar, the DMA clinet must request @@ -46,6 +50,8 @@ sdma_xbar: dma-router@4a002b78 { #dma-cells = <1>; dma-requests = <205>; ti,dma-safe-map = <0>; + /* Protect the sDMA request ranges: 10-14 and 100-126 */ + ti,reserved-dma-request-ranges = <10 5>, <100 27>; dma-masters = <&sdma>; }; |