add bindings document for altera freeze bridge (3c263bc7) · Commits · 戴 / test

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

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+23 −0

Original line number	Diff line number	Diff line
		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>;
		};

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