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Message-Id: <20230111093245.318745-3-milkfafa@gmail.com>
Date:   Wed, 11 Jan 2023 17:32:44 +0800
From:   Marvin Lin <milkfafa@...il.com>
To:     krzysztof.kozlowski@...aro.org, robh+dt@...nel.org, bp@...en8.de,
        tony.luck@...el.com, james.morse@....com, mchehab@...nel.org,
        rric@...nel.org, benjaminfair@...gle.com, yuenn@...gle.com,
        venture@...gle.com, avifishman70@...il.com, tmaimon77@...il.com,
        tali.perry1@...il.com
Cc:     linux-edac@...r.kernel.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org, openbmc@...ts.ozlabs.org,
        KWLIU@...oton.com, YSCHU@...oton.com, ctcchien@...oton.com,
        kflin@...oton.com, Marvin Lin <milkfafa@...il.com>,
        Rob Herring <robh@...nel.org>
Subject: [PATCH v18 2/3] dt-bindings: memory-controllers: nuvoton: Add NPCM memory controller

Add dt-bindings document for Nuvoton NPCM memory controller.

Signed-off-by: Marvin Lin <milkfafa@...il.com>
Reviewed-by: Rob Herring <robh@...nel.org>
---
 .../nuvoton,npcm-memory-controller.yaml       | 50 +++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/memory-controllers/nuvoton,npcm-memory-controller.yaml

diff --git a/Documentation/devicetree/bindings/memory-controllers/nuvoton,npcm-memory-controller.yaml b/Documentation/devicetree/bindings/memory-controllers/nuvoton,npcm-memory-controller.yaml
new file mode 100644
index 000000000000..ac1a5a17749d
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/nuvoton,npcm-memory-controller.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/nuvoton,npcm-memory-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nuvoton NPCM Memory Controller
+
+maintainers:
+  - Marvin Lin <kflin@...oton.com>
+  - Stanley Chu <yschu@...oton.com>
+
+description: |
+  The Nuvoton BMC SoC supports DDR4 memory with or 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,npcm750-memory-controller
+      - nuvoton,npcm845-memory-controller
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    mc: memory-controller@...24000 {
+        compatible = "nuvoton,npcm750-memory-controller";
+        reg = <0xf0824000 0x1000>;
+        interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
+    };
-- 
2.34.1

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