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author | Sascha Hauer <s.hauer@pengutronix.de> | 2014-04-25 11:22:32 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2014-04-28 09:08:46 +0200 |
commit | 00ce25c6dcdae5582ae4be37147ab33678adc995 (patch) | |
tree | 41c93102ae304a61738c31353e3cb5336ef0b297 /dts/Bindings/dma/ti-edma.txt | |
parent | 0af79fbb6779921d3f1962773adb7fb57d3c89d4 (diff) | |
download | barebox-00ce25c6dcdae5582ae4be37147ab33678adc995.tar.gz barebox-00ce25c6dcdae5582ae4be37147ab33678adc995.tar.xz |
Add devicetree source files as of Linux-3.15-rc2
This adds the Linux dts files to barebox. The dts files are
generated from Ian Campbells device-tree-rebasing.git:
git://xenbits.xen.org/people/ianc/device-tree-rebasing.git
The dts are found in dts/ in the barebox repository and
will be updated from upstream regularly, probably for each upstream
-rc.
To keep the synchronization with upstream easy no changes to
the original files are allowed under dts/. Instead changes to
upstream dts files will be done using overlays in arch/$ARCH/dts/.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/dma/ti-edma.txt')
-rw-r--r-- | dts/Bindings/dma/ti-edma.txt | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/dts/Bindings/dma/ti-edma.txt b/dts/Bindings/dma/ti-edma.txt new file mode 100644 index 0000000000..9fbbdb783a --- /dev/null +++ b/dts/Bindings/dma/ti-edma.txt @@ -0,0 +1,34 @@ +TI EDMA + +Required properties: +- compatible : "ti,edma3" +- ti,edma-regions: Number of regions +- ti,edma-slots: Number of slots +- #dma-cells: Should be set to <1> + Clients should use a single channel number per DMA request. +- dma-channels: Specify total DMA channels per CC +- reg: Memory map for accessing module +- interrupt-parent: Interrupt controller the interrupt is routed through +- interrupts: Exactly 3 interrupts need to be specified in the order: + 1. Transfer completion interrupt. + 2. Memory protection interrupt. + 3. Error interrupt. +Optional properties: +- ti,hwmods: Name of the hwmods associated to the EDMA +- ti,edma-xbar-event-map: Crossbar event to channel map + +Example: + +edma: edma@49000000 { + reg = <0x49000000 0x10000>; + interrupt-parent = <&intc>; + interrupts = <12 13 14>; + compatible = "ti,edma3"; + ti,hwmods = "tpcc", "tptc0", "tptc1", "tptc2"; + #dma-cells = <1>; + dma-channels = <64>; + ti,edma-regions = <4>; + ti,edma-slots = <256>; + ti,edma-xbar-event-map = <1 12 + 2 13>; +}; |