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author | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-10-03 11:09:16 +0200 |
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committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-10-03 11:09:16 +0200 |
commit | 0d3c24e936feefeca854073ccb40613cd6eba9a9 (patch) | |
tree | 1f675397b924846740b0931b066ddce6f3d7eb3d /Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt | |
parent | 1af0838de60e723cb02253ecc9b555c30f8f6a6f (diff) | |
parent | ebec44a2456fbe5fe18aae88f6010f6878f0cb4a (diff) |
Merge airlied/drm-next into drm-misc-next
Just catching up with upstream.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt')
-rw-r--r-- | Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt b/Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt new file mode 100644 index 000000000000..8dcfba926bc7 --- /dev/null +++ b/Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt @@ -0,0 +1,36 @@ +Xilinx LogiCORE Partial Reconfig Decoupler Softcore + +The Xilinx LogiCORE Partial Reconfig Decoupler manages one or more +decouplers / fpga bridges. +The controller can decouple/disable the bridges which prevents signal +changes from passing through the bridge. The controller can also +couple / enable the bridges which allows traffic to pass through the +bridge normally. + +The Driver supports only MMIO handling. A PR region can have multiple +PR Decouplers which can be handled independently or chained via decouple/ +decouple_status signals. + +Required properties: +- compatible : Should contain "xlnx,pr-decoupler-1.00" followed by + "xlnx,pr-decoupler" +- regs : base address and size for decoupler module +- clocks : input clock to IP +- clock-names : should contain "aclk" + +Optional properties: +- bridge-enable : 0 if driver should disable bridge at startup + 1 if driver should enable bridge at startup + Default is to leave bridge in current state. + +See Documentation/devicetree/bindings/fpga/fpga-region.txt for generic bindings. + +Example: + fpga-bridge@100000450 { + compatible = "xlnx,pr-decoupler-1.00", + "xlnx-pr-decoupler"; + regs = <0x10000045 0x10>; + clocks = <&clkc 15>; + clock-names = "aclk"; + bridge-enable = <0>; + }; |