On Thu, 9 Jun 2022 at 14:31, Sughosh Ganu <sughosh.g...@linaro.org> wrote: > > From: Masami Hiramatsu <masami.hirama...@linaro.org> > > Add a devicetree-binding YAML file for the FWU metadata on MTD > devices without GPT. > > Signed-off-by: Masami Hiramatsu <masami.hirama...@linaro.org> > Signed-off-by: Sughosh Ganu <sughosh.g...@linaro.org> > --- > .../firmware/uboot,fwu-mdata-mtd.yaml | 38 +++++++++++++++++++ > 1 file changed, 38 insertions(+) > create mode 100644 doc/device-tree-bindings/firmware/uboot,fwu-mdata-mtd.yaml > > diff --git a/doc/device-tree-bindings/firmware/uboot,fwu-mdata-mtd.yaml > b/doc/device-tree-bindings/firmware/uboot,fwu-mdata-mtd.yaml > new file mode 100644 > index 0000000000..4f5404f999 > --- /dev/null > +++ b/doc/device-tree-bindings/firmware/uboot,fwu-mdata-mtd.yaml > @@ -0,0 +1,38 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/firmware/u-boot,fwu-mdata-sf.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: FWU metadata on MTD device without GPT > + > +maintainers: > + - Masami Hiramatsu <masami.hirama...@linaro.org> > + > +properties: > + compatible: > + items: > + - const: u-boot,fwu-mdata-mtd > + > + fwu-mdata-store: > + maxItems: 1 > + description: Phandle of the MTD device which contains the FWU medatata. > + > + mdata-offsets: > + minItems: 2 > + description: Offsets of the primary and secondary FWU metadata in the > NOR flash. > + > +required: > + - compatible > + - fwu-mdata-store > + - mdata-offsets > + > +additionalProperties: false > + > +examples: > + - | > + fwu-mdata { > + compatible = "u-boot,fwu-mdata-mtd"; > + fwu-mdata-store = <&spi-flash>; > + mdata-offsets = <0x500000 0x530000>;
Is a single 32bit value sufficient to define a block offset in an MTD device? I was thinking of NAND with a density > 4GByte. > + }; > -- > 2.25.1 >