linux-kernel - [PATCH v3 05/14] dt-bindings: fsi: Document the IBM SBEFIFO engine

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Message-Id: <20240425213701.655540-6-eajames@linux.ibm.com>
Date: Thu, 25 Apr 2024 16:36:52 -0500
From: Eddie James <eajames@...ux.ibm.com>
To: linux-aspeed@...ts.ozlabs.org
Cc: eajames@...ux.ibm.com, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-fsi@...ts.ozlabs.org,
        linux-spi@...r.kernel.org, linux-i2c@...r.kernel.org,
        lakshmiy@...ibm.com, robh@...nel.org, krzk+dt@...nel.org,
        conor+dt@...nel.org, joel@....id.au, andrew@...econstruct.com.au
Subject: [PATCH v3 05/14] dt-bindings: fsi: Document the IBM SBEFIFO engine

The SBEFIFO engine provides an interface to the POWER processor
Self Boot Engine (SBE).

Signed-off-by: Eddie James <eajames@...ux.ibm.com>
Acked-by: Conor Dooley <conor.dooley@...rochip.com>
Reviewed-by: Andrew Jeffery <andrew@...econstruct.com.au>
---
Changes since v1:
 - Chance "ody" to "odyssey"
 - Fix typo in commit message
 - Reword description to describe the hardware only

Changes since v2:
 - Rename file
 - Remove '|' after description
 - Change generic node name to match fsi.txt

Changes since sending in the Odyssey SBEFIFO series:
 - Add occ child node documentation

 .../bindings/fsi/ibm,p9-sbefifo.yaml          | 50 +++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/fsi/ibm,p9-sbefifo.yaml

diff --git a/Documentation/devicetree/bindings/fsi/ibm,p9-sbefifo.yaml b/Documentation/devicetree/bindings/fsi/ibm,p9-sbefifo.yaml
new file mode 100644
index 000000000000..72569147db2a
--- /dev/null
+++ b/Documentation/devicetree/bindings/fsi/ibm,p9-sbefifo.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/fsi/ibm,p9-sbefifo.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: IBM FSI-attached SBEFIFO engine
+
+maintainers:
+  - Eddie James <eajames@...ux.ibm.com>
+
+description:
+  The SBEFIFO is an FSI CFAM engine that provides an interface to the
+  POWER processor Self Boot Engine (SBE). This node will always be a child
+  of an FSI CFAM node; see fsi.txt for details on FSI slave and CFAM
+  nodes.
+
+properties:
+  compatible:
+    enum:
+      - ibm,p9-sbefifo
+      - ibm,odyssey-sbefifo
+
+  reg:
+    items:
+      - description: FSI slave address
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 0
+
+patternProperties:
+  "^occ(@.*)?":
+    type: object
+    $ref: ibm,p9-occ.yaml#
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    fsi-slave-engine@...0 {
+        compatible = "ibm,p9-sbefifo";
+        reg = <0x2400 0x400>;
+    };
-- 
2.39.3