openwrt/target/linux/generic/backport-6.6/401-v6.9-dt-bindings-mtd-add-basic-bindings-for-UBI.patch
Daniel Golle 4fd4be6bbe generic: 6.6: move NVMEM-on-UBI patches from pending to backports
The series was merged for Linux v6.9, so move it to backports.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2024-06-16 13:28:01 +01:00

124 lines
3.2 KiB
Diff

From 25d88bfd35bac3196eafa666e3b05033b46ffa21 Mon Sep 17 00:00:00 2001
From: Daniel Golle <daniel@makrotopia.org>
Date: Tue, 19 Dec 2023 02:32:00 +0000
Subject: [PATCH 1/8] dt-bindings: mtd: add basic bindings for UBI
Add basic bindings for UBI devices and volumes.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
---
.../bindings/mtd/partitions/linux,ubi.yaml | 65 +++++++++++++++++++
.../bindings/mtd/partitions/ubi-volume.yaml | 35 ++++++++++
2 files changed, 100 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mtd/partitions/linux,ubi.yaml
create mode 100644 Documentation/devicetree/bindings/mtd/partitions/ubi-volume.yaml
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/partitions/linux,ubi.yaml
@@ -0,0 +1,65 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/partitions/linux,ubi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Unsorted Block Images
+
+description: |
+ UBI ("Unsorted Block Images") is a volume management system for raw
+ flash devices which manages multiple logical volumes on a single
+ physical flash device and spreads the I/O load (i.e wear-leveling)
+ across the whole flash chip.
+
+maintainers:
+ - Daniel Golle <daniel@makrotopia.org>
+
+allOf:
+ - $ref: partition.yaml#
+
+properties:
+ compatible:
+ const: linux,ubi
+
+ volumes:
+ type: object
+ description: UBI Volumes
+
+ patternProperties:
+ "^ubi-volume-.*$":
+ $ref: /schemas/mtd/partitions/ubi-volume.yaml#
+
+ unevaluatedProperties: false
+
+required:
+ - compatible
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ reg = <0x0 0x100000>;
+ label = "bootloader";
+ read-only;
+ };
+
+ partition@100000 {
+ reg = <0x100000 0x1ff00000>;
+ label = "ubi";
+ compatible = "linux,ubi";
+
+ volumes {
+ ubi-volume-caldata {
+ volid = <2>;
+ volname = "rf";
+ };
+ };
+ };
+ };
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/partitions/ubi-volume.yaml
@@ -0,0 +1,35 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/partitions/ubi-volume.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: UBI volume
+
+description: |
+ This binding describes a single UBI volume. Volumes can be matches either
+ by their ID or their name, or both.
+
+maintainers:
+ - Daniel Golle <daniel@makrotopia.org>
+
+properties:
+ volid:
+ $ref: /schemas/types.yaml#/definitions/uint32
+ description:
+ Match UBI volume ID
+
+ volname:
+ $ref: /schemas/types.yaml#/definitions/string
+ description:
+ Match UBI volume ID
+
+anyOf:
+ - required:
+ - volid
+
+ - required:
+ - volname
+
+# This is a generic file other binding inherit from and extend
+additionalProperties: true