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