linux-kernel - [PATCH v2 1/3] dt-bindings: riscv: Add DT documentation for DDR Controller in SiFive SoCs

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Message-Id: <1599457679-8947-2-git-send-email-yash.shah@sifive.com>
Date:   Mon,  7 Sep 2020 11:17:57 +0530
From:   Yash Shah <yash.shah@...ive.com>
To:     robh+dt@...nel.org, palmer@...belt.com, paul.walmsley@...ive.com,
        bp@...en8.de, mchehab@...nel.org, tony.luck@...el.com
Cc:     aou@...s.berkeley.edu, james.morse@....com, rrichter@...vell.com,
        devicetree@...r.kernel.org, linux-riscv@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-edac@...r.kernel.org,
        sachin.ghadi@...ive.com, Yash Shah <yash.shah@...ive.com>
Subject: [PATCH v2 1/3] dt-bindings: riscv: Add DT documentation for DDR Controller in SiFive SoCs

Add device tree bindings for SiFive FU540 DDR controller driver

Signed-off-by: Yash Shah <yash.shah@...ive.com>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@...gle.com>
Acked-by: Palmer Dabbelt <palmerdabbelt@...gle.com>
---
 .../devicetree/bindings/riscv/sifive-ddr.yaml      | 41 ++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/riscv/sifive-ddr.yaml

diff --git a/Documentation/devicetree/bindings/riscv/sifive-ddr.yaml b/Documentation/devicetree/bindings/riscv/sifive-ddr.yaml
new file mode 100644
index 0000000..0288119
--- /dev/null
+++ b/Documentation/devicetree/bindings/riscv/sifive-ddr.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/riscv/sifive-ddr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SiFive DDR memory controller binding
+
+description: |
+  The Sifive DDR controller driver is used to manage the Cadence DDR
+  controller present in SiFive FU540-C000 SoC. Currently the driver is
+  used to manage EDAC feature of the DDR controller.
+
+maintainers:
+  - Yash Shah <yash.shah@...ive.com>
+
+properties:
+  compatible:
+    enum:
+      - sifive,fu540-c000-ddr
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    memory-controller@...b0000 {
+        compatible = "sifive,fu540-c000-ddr";
+        reg = <0x100b0000 0x4000>;
+        interrupts = <31>;
+    };
-- 
2.7.4