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Message-ID: <20231009201005.1964794-2-sjg@chromium.org>
Date:   Mon,  9 Oct 2023 14:10:00 -0600
From:   Simon Glass <sjg@...omium.org>
To:     devicetree@...r.kernel.org
Cc:     U-Boot Mailing List <u-boot@...ts.denx.de>,
        linux-mtd@...ts.infradead.org, Michael Walle <mwalle@...nel.org>,
        Tom Rini <trini@...sulko.com>, Rob Herring <robh@...nel.org>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Simon Glass <sjg@...omium.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Richard Weinberger <richard@....at>,
        Rob Herring <robh+dt@...nel.org>,
        Vignesh Raghavendra <vigneshr@...com>,
        linux-kernel@...r.kernel.org
Subject: [PATCH v3 2/3] dt-bindings: mtd: binman-partition: Add binman compatibles

Add two compatible for binman entries, as a starting point for the
schema.

Note that, after discussion on v2, we decided to keep the existing
meaning of label so as not to require changes to existing userspace
software when moving to use binman nodes to specify the firmware
layout.

Signed-off-by: Simon Glass <sjg@...omium.org>
---

Changes in v3:
- Drop fixed-partitions from the example
- Use compatible instead of label

Changes in v2:
- Use plain partition@xxx for the node name

 .../mtd/partitions/binman-partition.yaml      | 48 +++++++++++++++++++
 1 file changed, 48 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mtd/partitions/binman-partition.yaml

diff --git a/Documentation/devicetree/bindings/mtd/partitions/binman-partition.yaml b/Documentation/devicetree/bindings/mtd/partitions/binman-partition.yaml
new file mode 100644
index 000000000000..754f804524a5
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/partitions/binman-partition.yaml
@@ -0,0 +1,48 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+# Copyright 2023 Google LLC
+
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/partitions/binman-partition.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Binman partition
+
+maintainers:
+  - Simon Glass <sjg@...omium.org>
+
+select: false
+
+description: |
+  This corresponds to a binman 'entry'. It is a single partition which holds
+  data of a defined type.
+
+allOf:
+  - $ref: /schemas/mtd/partitions/partition.yaml#
+
+properties:
+  compatible:
+    items:
+      enum:
+        - u-boot       # u-boot.bin from U-Boot projec6t
+        - atf-bl31     # bl31.bin or bl31.elf from TF-A project
+
+additionalProperties: false
+
+examples:
+  - |
+    partitions {
+        compatible = "binman";
+        #address-cells = <1>;
+        #size-cells = <1>;
+
+        partition@...000 {
+            compatible = "u-boot";
+            reg = <0x100000 0xf00000>;
+        };
+
+        partition@...000 {
+            compatible = "atf-bl31";
+            reg = <0x200000 0x100000>;
+        };
+    };
-- 
2.42.0.609.gbb76f46606-goog

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