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Subject[PATCH v4 3/5] dt-bindings: nvmem: add YAML schema for the sl28 vpd layout
Date
From: Michael Walle <michael@walle.cc>

Add a schema for the NVMEM layout on Kontron's sl28 boards.

Signed-off-by: Michael Walle <michael@walle.cc>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
.../nvmem/layouts/kontron,sl28-vpd.yaml | 62 +++++++++++++++++++
.../bindings/nvmem/layouts/nvmem-layout.yaml | 3 +
2 files changed, 65 insertions(+)
create mode 100644 Documentation/devicetree/bindings/nvmem/layouts/kontron,sl28-vpd.yaml

diff --git a/Documentation/devicetree/bindings/nvmem/layouts/kontron,sl28-vpd.yaml b/Documentation/devicetree/bindings/nvmem/layouts/kontron,sl28-vpd.yaml
new file mode 100644
index 000000000000..fef795e79c36
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvmem/layouts/kontron,sl28-vpd.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/layouts/kontron,sl28-vpd.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVMEM layout of the Kontron SMARC-sAL28 vital product data
+
+maintainers:
+ - Michael Walle <michael@walle.cc>
+
+description:
+ The vital product data (VPD) of the sl28 boards contains a serial
+ number and a base MAC address. The actual MAC addresses for the
+ on-board ethernet devices are derived from this base MAC address by
+ adding an offset.
+
+select: false
+
+properties:
+ compatible:
+ const: kontron,sl28-vpd
+
+ serial-number:
+ type: object
+ description: The board's serial number
+
+ base-mac-address:
+ type: object
+ description:
+ Base MAC address for all on-module network interfaces. The first
+ argument of the phandle will be treated as an offset.
+
+ properties:
+ "#nvmem-cell-cells":
+ const: 1
+
+ additionalProperties: false
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+ - |
+ otp-1 {
+ compatible = "user-otp";
+
+ nvmem-layout {
+ compatible = "kontron,sl28-vpd";
+
+ serial_number: serial-number {
+ };
+
+ base_mac_address: base-mac-address {
+ #nvmem-cell-cells = <1>;
+ };
+ };
+ };
+
+...
diff --git a/Documentation/devicetree/bindings/nvmem/layouts/nvmem-layout.yaml b/Documentation/devicetree/bindings/nvmem/layouts/nvmem-layout.yaml
index ecc7c37cbc1f..f64ea2fa362d 100644
--- a/Documentation/devicetree/bindings/nvmem/layouts/nvmem-layout.yaml
+++ b/Documentation/devicetree/bindings/nvmem/layouts/nvmem-layout.yaml
@@ -17,6 +17,9 @@ description: |
define and might require dynamic reading of the NVMEM device in order to
perform their parsing. The nvmem-layout container is here to describe these.

+oneOf:
+ - $ref: kontron,sl28-vpd.yaml
+
properties:
compatible: true

--
2.34.1
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