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4e96945960
Add bindings to allow MTD/block devices to be used in reserved-memory regions using the "phram" (MTD in PHysical RAM) driver. This allows things like partitioning to be specified via the existing devicetree bindings. Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com> Link: https://lore.kernel.org/linux-mtd/20220412135302.1682890-3-vincent.whitchurch@axis.com
48 lines
1.0 KiB
YAML
48 lines
1.0 KiB
YAML
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/reserved-memory/phram.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: MTD/block device in RAM
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description: |
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Specifies that the reserved memory region can be used as an MTD or block
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device.
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The "phram" node is named after the "MTD in PHysical RAM" driver which
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provides an implementation of this functionality in Linux.
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maintainers:
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- Vincent Whitchurch <vincent.whitchurch@axis.com>
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allOf:
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- $ref: "reserved-memory.yaml"
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- $ref: "/schemas/mtd/mtd.yaml"
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properties:
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compatible:
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const: phram
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reg:
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description: region of memory that can be used as an MTD/block device
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required:
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- compatible
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- reg
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unevaluatedProperties: false
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examples:
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- |
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reserved-memory {
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#address-cells = <1>;
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#size-cells = <1>;
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phram: flash@12340000 {
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compatible = "phram";
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label = "rootfs";
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reg = <0x12340000 0x00800000>;
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};
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};
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