On Fri, Jan 15, 2021 at 04:39:00PM +0100, Rafał Miłecki wrote:
> From: Rafał Miłecki
>
> 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
> ---
> .../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 ..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
> +
> +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 0x10>;
> +};
> +
> +partition@10 {
> +compatible = "brcm,bcm4908-firmware";
> +reg = <0x10 0xf0>;
> +};
> +
> +partition@100 {
> +compatible = "brcm,bcm4908-firmware";
> +reg = <0x100 0xf0>;
> +};
> +
> +partition@1f0 {
> +label = "calibration";
> +reg = <0x1f0 0x10>;
> +};
> +};
> --
> 2.26.2
>
