diff options
| author | Alan Tull <atull@opensource.altera.com> | 2016-10-17 11:09:34 -0500 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2016-11-18 11:55:18 -0600 |
| commit | 3c263bc7b7270aec7d97edb5625b795707d2f1fa (patch) | |
| tree | 7ad59f91563cc7006f031abc13700ab531456329 /Documentation/devicetree/bindings/fpga | |
| parent | 1adcbea4201a6852362aa5ece573f1f169b28113 (diff) | |
add bindings document for altera freeze bridge
Add bindings document for the Altera Freeze Bridge. A Freeze
Bridge is used to gate traffic to/from a region of a FPGA
such that that region can be reprogrammed. The Freeze Bridge
exist in FPGA fabric that is not currently being reconfigured.
Signed-off-by: Alan Tull <atull@opensource.altera.com>
Signed-off-by: Matthew Gerlach <mgerlach@opensource.altera.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/fpga')
| -rw-r--r-- | Documentation/devicetree/bindings/fpga/altera-freeze-bridge.txt | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/fpga/altera-freeze-bridge.txt b/Documentation/devicetree/bindings/fpga/altera-freeze-bridge.txt new file mode 100644 index 000000000000..f8e288c71b2d --- /dev/null +++ b/Documentation/devicetree/bindings/fpga/altera-freeze-bridge.txt @@ -0,0 +1,23 @@ +Altera Freeze Bridge Controller Driver + +The Altera Freeze Bridge Controller manages one or more freeze bridges. +The controller can freeze/disable the bridges which prevents signal +changes from passing through the bridge. The controller can also +unfreeze/enable the bridges which allows traffic to pass through the +bridge normally. + +Required properties: +- compatible : Should contain "altr,freeze-bridge-controller" +- regs : base address and size for freeze bridge module + +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. + +Example: + freeze-controller@100000450 { + compatible = "altr,freeze-bridge-controller"; + regs = <0x1000 0x10>; + bridge-enable = <0>; + }; |