From: Shubhrajyoti Datta <shubhrajyoti.datta@amd.com>
Date: Mon, 8 Sep 2025 11:56:48 +0000 (+0530)
Subject: dt-bindings: memory-controllers: Add support for Versal NET EDAC
X-Git-Tag: v6.18-rc1~194^2~5
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=8d978222e87c5ea50f912141b18421882f89492a;p=thirdparty%2Flinux.git

dt-bindings: memory-controllers: Add support for Versal NET EDAC

Add device tree bindings for AMD Versal NET EDAC for DDR controller.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/20250908115649.22903-1-shubhrajyoti.datta@amd.com
---

diff --git a/Documentation/devicetree/bindings/memory-controllers/xlnx,versal-net-ddrmc5.yaml b/Documentation/devicetree/bindings/memory-controllers/xlnx,versal-net-ddrmc5.yaml
new file mode 100644
index 0000000000000..479288567d0b0
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/xlnx,versal-net-ddrmc5.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/xlnx,versal-net-ddrmc5.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Xilinx Versal NET Memory Controller
+
+maintainers:
+  - Shubhrajyoti Datta <shubhrajyoti.datta@amd.com>
+
+description:
+  The integrated DDR Memory Controllers (DDRMCs) support both DDR5 and LPDDR5
+  compact and extended  memory interfaces. Versal NET DDR memory controller
+  has an optional ECC support which correct single bit ECC errors and detect
+  double bit ECC errors. It also has support for reporting other errors like
+  MMCM (Mixed-Mode Clock Manager) errors and General software errors.
+
+properties:
+  compatible:
+    const: xlnx,versal-net-ddrmc5
+
+  amd,rproc:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description:
+      phandle to the remoteproc_r5 rproc node using which APU interacts
+      with remote processor. APU primarily communicates with the RPU for
+      accessing the DDRMC address space and getting error notification.
+
+required:
+  - compatible
+  - amd,rproc
+
+additionalProperties: false
+
+examples:
+  - |
+    memory-controller {
+        compatible = "xlnx,versal-net-ddrmc5";
+        amd,rproc = <&remoteproc_r5>;
+    };