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From: Medad CChien <medadyoung@gmail.com>
X-Google-Original-From: Medad CChien <ctcchien@nuvoton.com>
To: rric@kernel.org, james.morse@arm.com, tony.luck@intel.com,
 mchehab@kernel.org, bp@alien8.de, robh+dt@kernel.org,
 benjaminfair@google.com, yuenn@google.com, venture@google.com,
 KWLIU@nuvoton.com, YSCHU@nuvoton.com, JJLIU0@nuvoton.com,
 KFTING@nuvoton.com, avifishman70@gmail.com, tmaimon77@gmail.com,
 tali.perry1@gmail.com, ctcchien@nuvoton.com
Subject: [PATCH v3 2/3] dt-bindings: edac: nuvoton, npcm-memory-controller.yaml
Date: Fri, 11 Mar 2022 09:42:44 +0800
Message-Id: <20220311014245.4612-3-ctcchien@nuvoton.com>
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 <openbmc-bounces+openbmc=archiver.kernel.org@lists.ozlabs.org>

Add device tree bindings for NPCM memory controller.

Signed-off-by: Medad CChien <ctcchien@nuvoton.com>
---
 .../edac/nuvoton,npcm-memory-controller.yaml  | 62 +++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/edac/nuvoton,npcm-memory-controller.yaml

diff --git a/Documentation/devicetree/bindings/edac/nuvoton,npcm-memory-controller.yaml b/Documentation/devicetree/bindings/edac/nuvoton,npcm-memory-controller.yaml
new file mode 100644
index 000000000000..46f61b0806ee
--- /dev/null
+++ b/Documentation/devicetree/bindings/edac/nuvoton,npcm-memory-controller.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/edac/npcm-edac.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nuvoton NPCM Memory Controller
+
+maintainers:
+  - Medad CChien <ctcchien@nuvoton.com>
+
+description: |
+  The Nuvoton BMC SoC supports DDR4 memory with and without ECC (error
+  correction check).
+
+  The memory controller supports single bit error correction, double bit
+  error detection (in-line ECC in which a section (1/8th) of the
+  memory device used to store data is used for ECC storage).
+
+  Note, the bootloader must configure ECC mode for the memory controller.
+
+properties:
+  compatible:
+    enum:
+      - nuvoton,npcm845-memory-controller
+      - nuvoton,npcm750-memory-controller
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    minItems: 1
+    items:
+      - description: uncorrectable error interrupt
+      - description: correctable error interrupt
+
+  interrupt-names:
+    minItems: 1
+    items:
+      - const: ue
+      - const: ce
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    ahb {
+        #address-cells = <2>;
+        #size-cells = <2>;
+        mc: memory-controller@f0824000 {
+            compatible = "nuvoton,npcm750-memory-controller";
+            reg = <0x0 0xf0824000 0x0 0x1000>;
+            interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
+        };
+    };
+
-- 
2.17.1