On Fri, Jan 15, 2021 at 04:39:00PM +0100, Rafał Miłecki wrote: > From: Rafał Miłecki <rafal@xxxxxxxxxx> > > BCM4908 uses fixed partitions layout but function of some partitions may > vary. Some devices use multiple firmware partitions and those should be > marked to let system discover their purpose. > > Signed-off-by: Rafał Miłecki <rafal@xxxxxxxxxx> > --- > .../partitions/brcm,bcm4908-partitions.yaml | 68 +++++++++++++++++++ > 1 file changed, 68 insertions(+) > create mode 100644 Documentation/devicetree/bindings/mtd/partitions/brcm,bcm4908-partitions.yaml > > diff --git a/Documentation/devicetree/bindings/mtd/partitions/brcm,bcm4908-partitions.yaml b/Documentation/devicetree/bindings/mtd/partitions/brcm,bcm4908-partitions.yaml > new file mode 100644 > index 000000000000..4090b61a3da7 > --- /dev/null > +++ b/Documentation/devicetree/bindings/mtd/partitions/brcm,bcm4908-partitions.yaml > @@ -0,0 +1,68 @@ > +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/mtd/partitions/brcm,bcm4908-partitions.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Broadcom BCM4908 partitioning > + > +description: | > + Broadcom BCM4908 CFE bootloader supports two firmware partitions. One is used > + for regular booting, the other is treated as fallback. > + > + This binding allows defining all fixed partitions and marking those containing > + firmware. System can use that information e.g. for booting or flashing > + purposes. > + > +maintainers: > + - Rafał Miłecki <rafal@xxxxxxxxxx> > + > +properties: > + compatible: > + const: brcm,bcm4908-partitions > + > + "#address-cells": true > + > + "#size-cells": true limit these to 1 and 2? > + > +patternProperties: > + "@[0-9a-f]+$": ^partition@... > + allOf: You can drop 'allOf'. > + - $ref: "partition.yaml#" > + - properties: > + compatible: > + const: brcm,bcm4908-firmware Also needs 'unevaluatedProperties: false' > + > +required: > + - "#address-cells" > + - "#size-cells" > + > +additionalProperties: false > + > +examples: > + - | > + partitions { > + compatible = "brcm,bcm4908-partitions"; > + #address-cells = <1>; > + #size-cells = <1>; > + > + partition@0 { > + label = "cferom"; > + reg = <0x0 0x100000>; > + }; > + > + partition@100000 { > + compatible = "brcm,bcm4908-firmware"; > + reg = <0x100000 0xf00000>; > + }; > + > + partition@1000000 { > + compatible = "brcm,bcm4908-firmware"; > + reg = <0x1000000 0xf00000>; > + }; > + > + partition@1f00000 { > + label = "calibration"; > + reg = <0x1f00000 0x100000>; > + }; > + }; > -- > 2.26.2 >
