dt-bindings: mtd: document Broadcom's BCM47xx partitions

Broadcom based home router devices use partitions which have to be
discovered in a specific way. They are not fixed and there is not any
standard partition table. This commit adds and describes a new custom
binding for such devices.

Signed-off-by: Rafał Miłecki <[email protected]>
Reviewed-by: Rob Herring <[email protected]>
Signed-off-by: Boris Brezillon <[email protected]>
2 files changed