[v9,1/2] dt-bindings: memory-controllers: Add support for Xilinx Versal EDAC for DDRMC

Commit Message

Datta, Shubhrajyoti Oct. 5, 2023, 10:12 a.m. UTC

Add device tree bindings for Xilinx Versal EDAC for DDR
controller.

Reviewed-by: Krzysztof Kozlowski <[e-mail]>
Co-developed-by: Sai Krishna Potthuri <[e-mail]>
Signed-off-by: Sai Krishna Potthuri <[e-mail]>
Signed-off-by: Shubhrajyoti Datta <[e-mail]>

---

(no changes since v7)

Changes in v7:
Update the subject to add memory-controllers instead of edac

Changes in v4:
Update the reviewed by tag

Changes in v2:
remove edac from compatible
Update the description
update the ddrmc_base and ddrmc_noc_base names

 .../xlnx,versal-ddrmc-edac.yaml               | 57 +++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/memory-controllers/xlnx,versal-ddrmc-edac.yaml

Patch

diff --git a/Documentation/devicetree/bindings/memory-controllers/xlnx,versal-ddrmc-edac.yaml b/Documentation/devicetree/bindings/memory-controllers/xlnx,versal-ddrmc-edac.yaml
new file mode 100644
index 000000000000..12f8e9f350bc
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/xlnx,versal-ddrmc-edac.yaml
@@ -0,0 +1,57 @@ 
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/xlnx,versal-ddrmc-edac.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Xilinx Versal DDRMC (Integrated DDR Memory Controller)
+
+maintainers:
+  - Shubhrajyoti Datta <[e-mail]>
+  - Sai Krishna Potthuri <[e-mail]>
+
+description:
+  The integrated DDR Memory Controllers (DDRMCs) support both DDR4 and LPDDR4/
+  4X memory interfaces. Versal DDR memory controller has an optional ECC support
+  which correct single bit ECC errors and detect double bit ECC errors.
+
+properties:
+  compatible:
+    const: xlnx,versal-ddrmc
+
+  reg:
+    items:
+      - description: DDR Memory Controller registers
+      - description: NOC registers corresponding to DDR Memory Controller
+
+  reg-names:
+    items:
+      - const: base
+      - const: noc
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - interrupts
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+
+    bus {
+      #address-cells = <2>;
+      #size-cells = <2>;
+      memory-controller@f6150000 {
+        compatible = "xlnx,versal-ddrmc";
+        reg = <0x0 0xf6150000 0x0 0x2000>, <0x0 0xf6070000 0x0 0x20000>;
+        reg-names = "base", "noc";
+        interrupt-parent = <&gic>;
+        interrupts = <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>;
+      };
+    };