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dt-bindings: fpga: Add compatible value for Xilinx DFX AXI shutdown manager

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This patch Adds compatible value for Xilinx Dynamic Function eXchnage(DFX)
AXI Shutdown manager IP.

Signed-off-by: Nava kishore Manne <nava.manne@xilinx.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
This commit is contained in:
Nava kishore Manne 2021-02-11 10:41:47 +05:30 committed by Moritz Fischer
parent 2d6e820c4e
commit 71c3980b8c
1 changed files with 23 additions and 1 deletions
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24
Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt
View file

@ -7,13 +7,24 @@ changes from passing through the bridge. The controller can also
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"
@ -22,6 +33,7 @@ See Documentation/devicetree/bindings/fpga/fpga-region.txt and
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";
@ -30,3 +42,13 @@ Example:
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>;
};