Commit 8058182f authored by Nava kishore Manne's avatar Nava kishore Manne Committed by Greg Kroah-Hartman

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

This patch Adds compatible value for Xilinx Dynamic Function eXchnage(DFX)
AXI Shutdown manager IP.
Signed-off-by: default avatarNava kishore Manne <nava.manne@xilinx.com>
Reviewed-by: default avatarTom Rix <trix@redhat.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Signed-off-by: default avatarMoritz Fischer <mdf@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent b5c6ecfd
...@@ -7,13 +7,24 @@ changes from passing through the bridge. The controller can also ...@@ -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 couple / enable the bridges which allows traffic to pass through the
bridge normally. 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 The Driver supports only MMIO handling. A PR region can have multiple
PR Decouplers which can be handled independently or chained via decouple/ PR Decouplers which can be handled independently or chained via decouple/
decouple_status signals. decouple_status signals.
Required properties: Required properties:
- compatible : Should contain "xlnx,pr-decoupler-1.00" followed by - 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 - regs : base address and size for decoupler module
- clocks : input clock to IP - clocks : input clock to IP
- clock-names : should contain "aclk" - clock-names : should contain "aclk"
...@@ -22,6 +33,7 @@ See Documentation/devicetree/bindings/fpga/fpga-region.txt and ...@@ -22,6 +33,7 @@ See Documentation/devicetree/bindings/fpga/fpga-region.txt and
Documentation/devicetree/bindings/fpga/fpga-bridge.txt for generic bindings. Documentation/devicetree/bindings/fpga/fpga-bridge.txt for generic bindings.
Example: Example:
Partial Reconfig Decoupler:
fpga-bridge@100000450 { fpga-bridge@100000450 {
compatible = "xlnx,pr-decoupler-1.00", compatible = "xlnx,pr-decoupler-1.00",
"xlnx-pr-decoupler"; "xlnx-pr-decoupler";
...@@ -30,3 +42,13 @@ Example: ...@@ -30,3 +42,13 @@ Example:
clock-names = "aclk"; clock-names = "aclk";
bridge-enable = <0>; 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>;
};
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment