Commit Graph

12 Commits

Author SHA1 Message Date
Rob Herring (Arm)
6ecd7715d6 dt-bindings: mtd: fixed-partitions: Restrict undefined properties
The fixed-partitions schema allowed undefined properties in order to
avoid warnings when there are nested fixed-partitions.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-01-22 15:08:08 +01:00
Rob Herring (Arm)
1eb9fabd52 dt-bindings: mtd: Ensure partition node properties are documented
Partition nodes without a compatible have no restrictions on additional
properties. Fix this by ensuring 'unevaluatedProperties' is set when
there's no compatible property. If there is a compatible property, then
there should be a specific schema for it which will enforce
'unevaluatedProperties'.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-01-22 15:08:08 +01:00
Rob Herring (Arm)
002d2fe799 dt-bindings: mtd: partitions: Define "#{address,size}-cells" in specific schemas
Whether "#address-cells" and "#size-cells" are used or not depends on
the specific partition type, so drop them from partitions.yaml and
define them in the specific partition schemas as needed.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-01-22 15:08:08 +01:00
Rob Herring (Arm)
ac83f4fa91 dt-bindings: mtd: partitions: Move "sercomm,scpart-id" to partition.yaml
Defining child node properties specific to the parent schema doesn't work
unless all the child node properties are known. They aren't known because
any partition can define its own properties. The solution to this is
typically something like spi-peripheral-props.yaml, but that's overkill for
this single property. Just move it to partition.yaml instead.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-01-22 15:08:08 +01:00
Rob Herring (Arm)
30f138c078 dt-bindings: mtd: fixed-partitions: Move "compression" to partition node
The "compression" property is defined in the wrong place as it applies
to individual partitions nodes, not all nodes.

Fixes: 8baba8d52f ("dt-bindings: mtd: fixed-partitions: Add compression property")
Reviewed-by: Simon Glass <simon.glass@canonical.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
2026-01-22 15:08:07 +01:00
Rob Herring (Arm)
239521712b dt-bindings: mtd: fixed-partitions: Fix "compression" typo
The example erroneously has "compress" property rather than the
documented "compression" property.

Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20241113225632.1783241-1-robh@kernel.org
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
2024-12-03 11:31:19 -06:00
Simon Glass
8baba8d52f dt-bindings: mtd: fixed-partitions: Add compression property
Sometimes the contents of a partition are compressed. Add a property to
express this and define the algorithm used.

Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20230927180545.3522628-1-sjg@chromium.org
2023-10-16 10:50:30 +02:00
Rob Herring
2f05bff26c dt-bindings: mtd: fixed-partitions: Fix 'sercomm,scpart-id' schema
The schema for 'sercomm,scpart-id' is broken. The 'if' condition is
never true because 'compatible' is in the parent node, not the child
node the sub-schema applies to. The example passes as there are no
constraints on additional/unevaluated properties. That's a secondary
issue which is complicated due to nested partitions.

Drop the if/then schema and the unnecessary 'allOf' so that the
'sercomm,scpart-id' property is at least defined.

Cc: Mikhail Zhilkin <csharper2005@gmail.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20221111212824.4103514-1-robh@kernel.org
2022-11-17 22:02:09 +01:00
Rafał Miłecki
2b9a31d762 dt-bindings: mtd: partitions: support marking rootfs partition
Linux needs to know what to use as root device. On embedded devices with
flash the only common way to specify that is cmdline & root= parameter.

That solution works with U-Boot which is Linux & cmdline aware but isn't
available with all market bootloaders. Also that method is fragile:
1. Requires specific probing order on multi-flash devices
2. Uses hardcoded partitions indexes

A lot of devices use different partitioning methods. It may be
"fixed-partitions" or some dynamic partitioning (e.g. based on parts
table). For such cases allow "linux,rootfs" property to mark correct
flash partition.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20221022211318.32009-1-zajec5@gmail.com
2022-11-07 17:14:17 +01:00
Mikhail Zhilkin
d55ce49137 dt-bindings: mtd: partitions: Extend fixed-partitions binding
Extend fixed-partitions binding for support of Sercomm partition parser
(add "sercomm,sc-partitions" compatible).

Signed-off-by: Mikhail Zhilkin <csharper2005@gmail.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/linux-mtd/20220516151725.885427-1-csharper2005@gmail.com
2022-05-16 18:38:00 +02:00
Rafał Miłecki
6418522022 dt-bindings: mtd: move partition binding to its own file
Single partition binding is quite common and may be:
1. Used by multiple parsers
2. Extended for more specific cases

Move it to separated file to avoid code duplication.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
2021-02-12 22:23:47 +01:00
Rafał Miłecki
04e9ab7526 dt-bindings: mtd: convert "fixed-partitions" to the json-schema
This standardizes its documentation, allows validating with Makefile
checks and helps writing DTS files.

Noticeable changes:
1. Dropped "Partitions can be represented by sub-nodes of a flash
   device." as we also support subpartitions (don't have to be part of
   flash device node)
2. Dropped "to Linux" as bindings are meant to be os agnostic.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Link: https://lore.kernel.org/r/20201210172352.31632-1-zajec5@gmail.com
Signed-off-by: Rob Herring <robh@kernel.org>
2020-12-10 21:57:02 -06:00