On Mon, Oct 09, 2023 at 04:04:13PM -0600, Simon Glass wrote: > Add a compatible string for binman, so we can extend fixed-partitions > in various ways. > > Signed-off-by: Simon Glass <sjg@xxxxxxxxxxxx> > --- > > Changes in v4: > - Change subject line > > Changes in v3: > - Drop fixed-partition additional compatible string > - Drop fixed-partitions from the example > - Mention use of compatible instead of label > > Changes in v2: > - Drop mention of 'enhanced features' in fixed-partitions.yaml > - Mention Binman input and output properties > - Use plain partition@xxx for the node name > > .../bindings/mtd/partitions/binman.yaml | 63 +++++++++++++++++++ > .../bindings/mtd/partitions/partitions.yaml | 1 + > MAINTAINERS | 5 ++ > 3 files changed, 69 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mtd/partitions/binman.yaml > > diff --git a/Documentation/devicetree/bindings/mtd/partitions/binman.yaml b/Documentation/devicetree/bindings/mtd/partitions/binman.yaml > new file mode 100644 > index 000000000000..7d6c8bd738f5 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mtd/partitions/binman.yaml > @@ -0,0 +1,63 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +# Copyright 2023 Google LLC > + > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/mtd/partitions/binman.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Binman firmware layout > + > +maintainers: > + - Simon Glass <sjg@xxxxxxxxxxxx> > + > +select: false > + > +description: | > + The binman node provides a layout for firmware, used when packaging firmware > + from multiple projects. It is based on fixed-partitions, with some > + extensions, but uses 'compatible' to indicate the contents of the node, to > + avoid perturbing or confusing existing installations which use 'label' for a > + particular purpose. > + > + Binman supports properties used as inputs to the firmware-packaging process, > + such as those which control alignment of partitions. This binding addresses > + these 'input' properties. For example, it is common for the 'reg' property > + (an 'output' property) to be set by Binman, based on the alignment requested > + in the input. > + > + Once processing is complete, input properties have mostly served their > + purpose, at least until the firmware is repacked later, e.g. due to a > + firmware update. The 'fixed-partitions' binding should provide enough > + information to read the firmware at runtime, including decompression if > + needed. > + > + Documentation for Binman is available at: > + > + https://u-boot.readthedocs.io/en/latest/develop/package/binman.html > + > + with the current image-description format at: > + > + https://u-boot.readthedocs.io/en/latest/develop/package/binman.html#image-description-format > + > +allOf: > + - $ref: /schemas/mtd/partitions/fixed-partitions.yaml# > + > +properties: > + compatible: > + const: binman This couldn't possibly pass validation. Including fixed-partitions.yaml says the compatible must be one thing and this says something else. > + > +additionalProperties: false > + > +examples: > + - | > + partitions { > + compatible = "binman"; > + #address-cells = <1>; > + #size-cells = <1>; > + > + partition@100000 { > + label = "u-boot"; > + reg = <0x100000 0xf00000>; > + }; > + }; > diff --git a/Documentation/devicetree/bindings/mtd/partitions/partitions.yaml b/Documentation/devicetree/bindings/mtd/partitions/partitions.yaml > index 1dda2c80747b..849fd15d085c 100644 > --- a/Documentation/devicetree/bindings/mtd/partitions/partitions.yaml > +++ b/Documentation/devicetree/bindings/mtd/partitions/partitions.yaml > @@ -15,6 +15,7 @@ maintainers: > > oneOf: > - $ref: arm,arm-firmware-suite.yaml > + - $ref: binman.yaml > - $ref: brcm,bcm4908-partitions.yaml > - $ref: brcm,bcm947xx-cfe-partitions.yaml > - $ref: fixed-partitions.yaml > diff --git a/MAINTAINERS b/MAINTAINERS > index c934244acc31..ebc8158fe67d 100644 > --- a/MAINTAINERS > +++ b/MAINTAINERS > @@ -3536,6 +3536,11 @@ F: Documentation/filesystems/bfs.rst > F: fs/bfs/ > F: include/uapi/linux/bfs_fs.h > > +BINMAN > +M: Simon Glass <sjg@xxxxxxxxxxxx> > +S: Supported > +F: Documentation/devicetree/bindings/mtd/partitions/binman* > + > BITMAP API > M: Yury Norov <yury.norov@xxxxxxxxx> > R: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> > -- > 2.42.0.609.gbb76f46606-goog >
