1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/fpga/xlnx,pr-decoupler.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Xilinx LogiCORE Partial Reconfig Decoupler/AXI shutdown manager Softcore
8
9 maintainers:
10 - Nava kishore Manne <nava.kishore.manne@amd.com>
11
12 allOf:
13 - $ref: fpga-bridge.yaml#
14
15 description: |
16 The Xilinx LogiCORE Partial Reconfig(PR) Decoupler manages one or more
17 decouplers/fpga bridges. The controller can decouple/disable the bridges
18 which prevents signal changes from passing through the bridge. The controller
19 can also couple / enable the bridges which allows traffic to pass through the
20 bridge normally.
21 Xilinx LogiCORE Dynamic Function eXchange(DFX) AXI shutdown manager Softcore
22 is compatible with the Xilinx LogiCORE pr-decoupler. The Dynamic Function
23 eXchange AXI shutdown manager prevents AXI traffic from passing through the
24 bridge. The controller safely handles AXI4MM and AXI4-Lite interfaces on a
25 Reconfigurable Partition when it is undergoing dynamic reconfiguration,
26 preventing the system deadlock that can occur if AXI transactions are
27 interrupted by DFX.
28 Please refer to fpga-region.txt and fpga-bridge.txt in this directory for
29 common binding part and usage.
30
31 properties:
32 compatible:
33 oneOf:
34 - items:
35 - const: xlnx,pr-decoupler-1.00
36 - const: xlnx,pr-decoupler
37 - items:
38 - const: xlnx,dfx-axi-shutdown-manager-1.00
39 - const: xlnx,dfx-axi-shutdown-manager
40
41 reg:
42 maxItems: 1
43
44 clocks:
45 maxItems: 1
46
47 clock-names:
48 items:
49 - const: aclk
50
51 required:
52 - compatible
53 - reg
54 - clocks
55 - clock-names
56
57 unevaluatedProperties: false
58
59 examples:
60 - |
61 fpga-bridge@100000450 {
62 compatible = "xlnx,pr-decoupler-1.00", "xlnx,pr-decoupler";
63 reg = <0x10000045 0x10>;
64 clocks = <&clkc 15>;
65 clock-names = "aclk";
66 };
67 ...
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