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

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Message-Id: <20250126-ppcyaml-v1-1-50649f51c3dd@posteo.net>
Date: Sun, 26 Jan 2025 19:58:56 +0100
From: J. Neuschäfer via B4 Relay <devnull+j.ne.posteo.net@...nel.org>
To: devicetree@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Cc: Scott Wood <oss@...error.net>, 
 Madhavan Srinivasan <maddy@...ux.ibm.com>, 
 Michael Ellerman <mpe@...erman.id.au>, Nicholas Piggin <npiggin@...il.com>, 
 Christophe Leroy <christophe.leroy@...roup.eu>, 
 Naveen N Rao <naveen@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Damien Le Moal <dlemoal@...nel.org>, 
 Niklas Cassel <cassel@...nel.org>, Herbert Xu <herbert@...dor.apana.org.au>, 
 "David S. Miller" <davem@...emloft.net>, Lee Jones <lee@...nel.org>, 
 Vinod Koul <vkoul@...nel.org>, Lorenzo Pieralisi <lpieralisi@...nel.org>, 
 Krzysztof Wilczyński <kw@...ux.com>, 
 Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>, 
 Bjorn Helgaas <bhelgaas@...gle.com>, 
 J. Neuschäfer <j.neuschaefer@....net>, 
 Wim Van Sebroeck <wim@...ux-watchdog.org>, 
 Guenter Roeck <linux@...ck-us.net>, Mark Brown <broonie@...nel.org>, 
 Miquel Raynal <miquel.raynal@...tlin.com>, 
 Richard Weinberger <richard@....at>, Vignesh Raghavendra <vigneshr@...com>, 
 linux-kernel@...r.kernel.org, linux-ide@...r.kernel.org, 
 linux-crypto@...r.kernel.org, dmaengine@...r.kernel.org, 
 linux-pci@...r.kernel.org, linux-watchdog@...r.kernel.org, 
 linux-spi@...r.kernel.org, linux-mtd@...ts.infradead.org, 
 J. Neuschäfer <j.ne@...teo.net>
Subject: [PATCH 1/9] dt-bindings: powerpc: Add binding for Freescale/NXP
 MPC83xx SoCs

From: "J. Neuschäfer" <j.ne@...teo.net>

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 <j.ne@...teo.net>
---
 .../bindings/powerpc/fsl/fsl,mpc83xx.yaml          | 67 ++++++++++++++++++++++
 1 file changed, 67 insertions(+)

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 <j.ne@...teo.net>
+
+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@...00000 {
+            #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>;
+        };
+    };
+
+...

-- 
2.48.0.rc1.219.gb6b6757d772