[1/9] dt-bindings: powerpc: Add binding for Freescale/NXP MPC83xx SoCs

Commit Message

J. Neuschäfer via B4 Relay Jan. 26, 2025, 6:58 p.m. UTC

From: "J. Neuschäfer" <[e-mail]>

Add a new binding for MPC83xx platforms, describing the board compatible
strings used in currently existing device trees.

Note that the SoC bus is called immr@... in many existing devicetrees,
but this contradicts the simple-bus binding.

Signed-off-by: J. Neuschäfer <[e-mail]>
---
 .../bindings/powerpc/fsl/fsl,mpc83xx.yaml          | 67 ++++++++++++++++++++++
 1 file changed, 67 insertions(+)

Comments

Rob Herring Jan. 27, 2025, 4:23 a.m. UTC | #1

On Sun, 26 Jan 2025 19:58:56 +0100, J. Neuschäfer wrote:
> Add a new binding for MPC83xx platforms, describing the board compatible
> strings used in currently existing device trees.
> 
> Note that the SoC bus is called immr@... in many existing devicetrees,
> but this contradicts the simple-bus binding.
> 
> Signed-off-by: J. Neuschäfer <[e-mail]>
> ---
>  .../bindings/powerpc/fsl/fsl,mpc83xx.yaml          | 67 ++++++++++++++++++++++
>  1 file changed, 67 insertions(+)
> 

Reviewed-by: Rob Herring (Arm) <[e-mail]>

Patch

diff --git a/Documentation/devicetree/bindings/powerpc/fsl/fsl,mpc83xx.yaml b/Documentation/devicetree/bindings/powerpc/fsl/fsl,mpc83xx.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..d51c85b505b0dec3a25d50e2bdc980cd2ee04b7c
--- /dev/null
+++ b/Documentation/devicetree/bindings/powerpc/fsl/fsl,mpc83xx.yaml
@@ -0,0 +1,67 @@ 
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/powerpc/fsl/fsl,mpc83xx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Freescale PowerQUICC II Pro (MPC83xx) platforms
+
+maintainers:
+  - J. Neuschäfer <[e-mail]>
+
+properties:
+  $nodename:
+    const: '/'
+  compatible:
+    oneOf:
+      - description: MPC83xx Reference Design Boards
+        items:
+          - enum:
+              - fsl,mpc8308rdb
+              - fsl,mpc8315erdb
+              - fsl,mpc8360rdk
+              - fsl,mpc8377rdb
+              - fsl,mpc8377wlan
+              - fsl,mpc8378rdb
+              - fsl,mpc8379rdb
+
+patternProperties:
+  "^soc@.*$":
+    type: object
+    properties:
+      compatible:
+        oneOf:
+          - items:
+              - enum:
+                  - fsl,mpc8315-immr
+                  - fsl,mpc8308-immr
+              - const: simple-bus
+          - items:
+              - const: fsl,mpc8360-immr
+              - const: fsl,immr
+              - const: fsl,soc
+              - const: simple-bus
+          - const: simple-bus
+
+additionalProperties: true
+
+examples:
+  - |
+    / {
+        compatible = "fsl,mpc8315erdb";
+        model = "MPC8315E-RDB";
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        soc@e0000000 {
+            #address-cells = <1>;
+            #size-cells = <1>;
+            device_type = "soc";
+            compatible = "fsl,mpc8315-immr", "simple-bus";
+            ranges = <0 0xe0000000 0x00100000>;
+            reg = <0xe0000000 0x00000200>;
+            bus-frequency = <0>;
+        };
+    };
+
+...