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author | Nava kishore Manne <nava.kishore.manne@amd.com> | 2023-02-24 14:18:25 +0300 |
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committer | Rob Herring <robh@kernel.org> | 2023-03-08 01:40:48 +0300 |
commit | 7795c8d3c7f151ca2860a7b1b22f4d4ec35fdac3 (patch) | |
tree | 4fba2c109cba3cf61d391794dc155b4e16f2991d /Documentation/devicetree/bindings/fpga | |
parent | fe15c26ee26efa11741a7b632e9f23b01aca4cc6 (diff) | |
download | linux-7795c8d3c7f151ca2860a7b1b22f4d4ec35fdac3.tar.xz |
dt-bindings: fpga: xilinx-pr-decoupler: convert bindings to json-schema
Convert xilinx-pr-decoupler bindings to DT schema format using json-schema
Signed-off-by: Nava kishore Manne <nava.kishore.manne@amd.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230224111825.161593-1-nava.kishore.manne@amd.com
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/fpga')
-rw-r--r-- | Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt | 54 | ||||
-rw-r--r-- | Documentation/devicetree/bindings/fpga/xlnx,pr-decoupler.yaml | 64 |
2 files changed, 64 insertions, 54 deletions
diff --git a/Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt b/Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt deleted file mode 100644 index 0acdfa6d62a4..000000000000 --- a/Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt +++ /dev/null @@ -1,54 +0,0 @@ -Xilinx LogiCORE Partial Reconfig Decoupler Softcore - -The Xilinx LogiCORE Partial Reconfig Decoupler manages one or more -decouplers / fpga bridges. -The controller can decouple/disable the bridges which prevents signal -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" 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" - -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"; - regs = <0x10000045 0x10>; - clocks = <&clkc 15>; - 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>; - }; diff --git a/Documentation/devicetree/bindings/fpga/xlnx,pr-decoupler.yaml b/Documentation/devicetree/bindings/fpga/xlnx,pr-decoupler.yaml new file mode 100644 index 000000000000..a7d4b8e59e19 --- /dev/null +++ b/Documentation/devicetree/bindings/fpga/xlnx,pr-decoupler.yaml @@ -0,0 +1,64 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/fpga/xlnx,pr-decoupler.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Xilinx LogiCORE Partial Reconfig Decoupler/AXI shutdown manager Softcore + +maintainers: + - Nava kishore Manne <nava.kishore.manne@amd.com> + +description: | + The Xilinx LogiCORE Partial Reconfig(PR) Decoupler manages one or more + decouplers/fpga bridges. The controller can decouple/disable the bridges + which prevents signal 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. + Please refer to fpga-region.txt and fpga-bridge.txt in this directory for + common binding part and usage. + +properties: + compatible: + oneOf: + - items: + - const: xlnx,pr-decoupler-1.00 + - const: xlnx,pr-decoupler + - items: + - const: xlnx,dfx-axi-shutdown-manager-1.00 + - const: xlnx,dfx-axi-shutdown-manager + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + items: + - const: aclk + +required: + - compatible + - reg + - clocks + - clock-names + +additionalProperties: false + +examples: + - | + fpga-bridge@100000450 { + compatible = "xlnx,pr-decoupler-1.00", "xlnx,pr-decoupler"; + reg = <0x10000045 0x10>; + clocks = <&clkc 15>; + clock-names = "aclk"; + }; +... |