0001 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/reserved-memory/phram.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: MTD/block device in RAM
0008
0009 description: |
0010 Specifies that the reserved memory region can be used as an MTD or block
0011 device.
0012
0013 The "phram" node is named after the "MTD in PHysical RAM" driver which
0014 provides an implementation of this functionality in Linux.
0015
0016 maintainers:
0017 - Vincent Whitchurch <vincent.whitchurch@axis.com>
0018
0019 allOf:
0020 - $ref: "reserved-memory.yaml"
0021 - $ref: "/schemas/mtd/mtd.yaml"
0022
0023 properties:
0024 compatible:
0025 const: phram
0026
0027 reg:
0028 description: region of memory that can be used as an MTD/block device
0029
0030 required:
0031 - compatible
0032 - reg
0033
0034 unevaluatedProperties: false
0035
0036 examples:
0037 - |
0038 reserved-memory {
0039 #address-cells = <1>;
0040 #size-cells = <1>;
0041
0042 phram: flash@12340000 {
0043 compatible = "phram";
0044 label = "rootfs";
0045 reg = <0x12340000 0x00800000>;
0046 };
0047 };
