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Message-Id: <20200226180901.89940-11-andre.przywara@arm.com>
Date:   Wed, 26 Feb 2020 18:08:58 +0000
From:   Andre Przywara <andre.przywara@....com>
To:     Rob Herring <robh@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Cc:     Robert Richter <rric@...nel.org>, soc@...nel.org,
        Jon Loeliger <jdl@....com>,
        Mark Langsdorf <mlangsdo@...hat.com>,
        Eric Auger <eric.auger@...hat.com>,
        Will Deacon <will@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>
Subject: [PATCH 10/13] dt-bindings: memory-controllers: convert Calxeda DDR to json-schema

Convert the Calxeda DDR memory controller binding to DT schema format
using json-schema.
Although this technically covers the whole DRAM controller, the
intention to use it only for error reporting and mapping fault addresses
to DRAM chips.

Signed-off-by: Andre Przywara <andre.przywara@....com>
---
 .../memory-controllers/calxeda-ddr-ctrlr.txt  | 16 --------
 .../memory-controllers/calxeda-ddr-ctrlr.yaml | 41 +++++++++++++++++++
 2 files changed, 41 insertions(+), 16 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/memory-controllers/calxeda-ddr-ctrlr.txt
 create mode 100644 Documentation/devicetree/bindings/memory-controllers/calxeda-ddr-ctrlr.yaml

diff --git a/Documentation/devicetree/bindings/memory-controllers/calxeda-ddr-ctrlr.txt b/Documentation/devicetree/bindings/memory-controllers/calxeda-ddr-ctrlr.txt
deleted file mode 100644
index 049675944b78..000000000000
--- a/Documentation/devicetree/bindings/memory-controllers/calxeda-ddr-ctrlr.txt
+++ /dev/null
@@ -1,16 +0,0 @@
-Calxeda DDR memory controller
-
-Properties:
-- compatible : Should be:
-  - "calxeda,hb-ddr-ctrl" for ECX-1000
-  - "calxeda,ecx-2000-ddr-ctrl" for ECX-2000
-- reg : Address and size for DDR controller registers.
-- interrupts : Interrupt for DDR controller.
-
-Example:
-
-	memory-controller@...00000 {
-		compatible = "calxeda,hb-ddr-ctrl";
-		reg = <0xfff00000 0x1000>;
-		interrupts = <0 91 4>;
-	};
diff --git a/Documentation/devicetree/bindings/memory-controllers/calxeda-ddr-ctrlr.yaml b/Documentation/devicetree/bindings/memory-controllers/calxeda-ddr-ctrlr.yaml
new file mode 100644
index 000000000000..c5153127e722
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/calxeda-ddr-ctrlr.yaml
@@ -0,0 +1,41 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/memory-controllers/calxeda-ddr-ctrlr.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Calxeda DDR memory controller binding
+
+description: |
+  The Calxeda DDR memory controller is initialised and programmed by the
+  firmware, but an OS might want to read its registers for error reporting
+  purposes and to learn about the DRAM topology.
+
+maintainers:
+  - Andre Przywara <andre.przywara@....com>
+
+properties:
+  compatible:
+    items:
+    - enum:
+        - calxeda,hb-ddr-ctrl
+        - calxeda,ecx-2000-ddr-ctrl
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+examples:
+  - |
+    memory-controller@...00000 {
+        compatible = "calxeda,hb-ddr-ctrl";
+        reg = <0xfff00000 0x1000>;
+        interrupts = <0 91 4>;
+    };
-- 
2.17.1

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