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Message-ID: <20230207104812.182439-1-nava.kishore.manne@amd.com>
Date: Tue, 7 Feb 2023 16:18:12 +0530
From: Nava kishore Manne <nava.kishore.manne@....com>
To: <mdf@...nel.org>, <hao.wu@...el.com>, <yilun.xu@...el.com>,
<trix@...hat.com>, <robh+dt@...nel.org>,
<krzysztof.kozlowski+dt@...aro.org>, <michal.simek@...inx.com>,
<nava.kishore.manne@....com>, <linux-fpga@...r.kernel.org>,
<devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-kernel@...r.kernel.org>
Subject: [PATCH] dt-bindings: fpga: convert bindings document to yaml
Convert the xilinx-pr-decoupler binding document from txt to yaml.
Signed-off-by: Nava kishore Manne <nava.kishore.manne@....com>
---
.../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@...000450 {
- 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@...000450 {
- 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 <nava.kishore.manne@....com>
+
+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@...000450 {
+ compatible = "xlnx,pr-decoupler-1.00", "xlnx,pr-decoupler";
+ reg = <0x10000045 0x10>;
+ clocks = <&clkc 15>;
+ clock-names = "aclk";
+ bridge-enable = <0>;
+ };
+
+ - |
+ fpga-bridge@...000850 {
+ 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
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