| From 48e56f16d7bc13665e037dc17935a23dc440e0df Mon Sep 17 00:00:00 2001 |
| From: Alan Tull <atull@opensource.altera.com> |
| Date: Mon, 17 Oct 2016 11:09:34 -0500 |
| Subject: [PATCH 058/103] 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> |
| --- |
| Documentation/devicetree/bindings/fpga/altera-freeze-bridge.txt | 23 ++++++++++ |
| 1 file changed, 23 insertions(+) |
| create mode 100644 Documentation/devicetree/bindings/fpga/altera-freeze-bridge.txt |
| |
| --- /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>; |
| + }; |