couple / enable the bridges which allows traffic to pass through the
bridge normally.
+Xilinx LogiCORE Dynamic Function eXchange(DFX) AXI shutdown manager
+Softcore is compatible with the Xilinx LogiCORE pr-decoupler.
+
+The Dynamic Function eXchange AXI shutdown manager prevents AXI traffic
+from passing through the bridge. The controller safely handles AXI4MM
+and AXI4-Lite interfaces on a Reconfigurable Partition when it is
+undergoing dynamic reconfiguration, preventing the system deadlock
+that can occur if AXI transactions are interrupted by DFX
+
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"
+ "xlnx,pr-decoupler" or
+ "xlnx,dfx-axi-shutdown-manager-1.00" followed by
+ "xlnx,dfx-axi-shutdown-manager"
- regs : base address and size for decoupler module
- clocks : input clock to IP
- clock-names : should contain "aclk"
Documentation/devicetree/bindings/fpga/fpga-bridge.txt for generic bindings.
Example:
+Partial Reconfig Decoupler:
fpga-bridge@100000450 {
compatible = "xlnx,pr-decoupler-1.00",
"xlnx-pr-decoupler";
clock-names = "aclk";
bridge-enable = <0>;
};
+
+Dynamic Function eXchange AXI shutdown manager:
+ fpga-bridge@100000450 {
+ compatible = "xlnx,dfx-axi-shutdown-manager-1.00",
+ "xlnx,dfx-axi-shutdown-manager";
+ regs = <0x10000045 0x10>;
+ clocks = <&clkc 15>;
+ clock-names = "aclk";
+ bridge-enable = <0>;
+ };