From af0837ebf45f5e889e942b7cb70d4e2d94d52197 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Tomasz=20Mo=C5=84?= <tomasz.mon@nordicsemi.no>
Date: Mon, 17 Oct 2022 07:51:31 +0200
Subject: [PATCH] dts: bindings: add bindings zephyr,flash-disk
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Add bindings to describe a block storage device based on flash map
partition.

Co-authored-by: Johann Fischer <johann.fischer@nordicsemi.no>
Signed-off-by: Tomasz Moń <tomasz.mon@nordicsemi.no>
---
 dts/bindings/misc/zephyr,flash-disk.yaml | 38 ++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 dts/bindings/misc/zephyr,flash-disk.yaml

diff --git a/dts/bindings/misc/zephyr,flash-disk.yaml b/dts/bindings/misc/zephyr,flash-disk.yaml
new file mode 100644
index 00000000000..4b7ba5568c8
--- /dev/null
+++ b/dts/bindings/misc/zephyr,flash-disk.yaml
@@ -0,0 +1,38 @@
+# Copyright (c) 2022 Nordic Semiconductor ASA
+# SPDX-License-Identifier: Apache-2.0
+
+description: Block storage device on flash partition
+
+compatible: "zephyr,flash-disk"
+
+include: base.yaml
+
+properties:
+    partition:
+      type: phandle
+      required: true
+      description: |
+        Backing storage flash map partition.
+
+    disk-name:
+      type: string
+      required: true
+      description: |
+        Disk name.
+
+    sector-size:
+      type: int
+      required: false
+      default: 512
+      description: |
+        Emulated block device sector size in bytes.
+
+    cache-size:
+      type: int
+      required: true
+      description: |
+        Size of statically allocated buffer size in bytes. The size should be
+        adequately chosen. On storage backends with uniform erase-blocks it
+        should be at least the erase-block-size, on storage backends with
+        non-uniform erase-blocks it should be at least the largest
+        erase-block-size.