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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Feb 2023 10:48:15.7863 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 7c4ce491-3590-4c8a-0c24-08db08f8d143 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT085.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: PH8PR12MB6793 Precedence: bulk List-ID: X-Mailing-List: linux-fpga@vger.kernel.org Convert the xilinx-pr-decoupler binding document from txt to yaml. Signed-off-by: Nava kishore Manne --- .../bindings/fpga/xilinx-pr-decoupler.txt | 54 ------------- .../bindings/fpga/xlnx,pr-decoupler.yaml | 76 +++++++++++++++++++ 2 files changed, 76 insertions(+), 54 deletions(-) delete mode 100644 Documentation/devicetree/bindings/fpga/xilinx-pr-decoupler.txt create mode 100644 Documentation/devicetree/bindings/fpga/xlnx,pr-decoupler.yaml 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..caea58a9ba7d --- /dev/null +++ b/Documentation/devicetree/bindings/fpga/xlnx,pr-decoupler.yaml @@ -0,0 +1,76 @@ +# 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 + +properties: + compatible: + oneOf: + - description: 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. + items: + - const: xlnx,pr-decoupler-1.00 + - const: xlnx,pr-decoupler + - description: The 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. + 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 + + bridge-enable: + description: + Zero if driver should disable bridge at startup + One if driver should enable bridge at startup + Default is to leave bridge in current state. + +required: + - compatible + - reg + - clocks + - clock-names + +unevaluatedProperties: false + +examples: + - | + fpga-bridge@100000450 { + compatible = "xlnx,pr-decoupler-1.00", "xlnx,pr-decoupler"; + reg = <0x10000045 0x10>; + clocks = <&clkc 15>; + clock-names = "aclk"; + bridge-enable = <0>; + }; + + - | + fpga-bridge@100000850 { + compatible = "xlnx,dfx-axi-shutdown-manager-1.00", "xlnx,dfx-axi-shutdown-manager"; + reg = <0x10000045 0x10>; + clocks = <&clkc 15>; + clock-names = "aclk"; + bridge-enable = <0>; + }; -- 2.25.1