1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/reserved-memory/phram.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: MTD/block device in RAM 8 9description: | 10 Specifies that the reserved memory region can be used as an MTD or block 11 device. 12 13 The "phram" node is named after the "MTD in PHysical RAM" driver which 14 provides an implementation of this functionality in Linux. 15 16maintainers: 17 - Vincent Whitchurch <vincent.whitchurch@axis.com> 18 19allOf: 20 - $ref: reserved-memory.yaml 21 - $ref: /schemas/mtd/mtd.yaml 22 23properties: 24 compatible: 25 const: phram 26 27 reg: 28 description: region of memory that can be used as an MTD/block device 29 30required: 31 - compatible 32 - reg 33 34unevaluatedProperties: false 35 36examples: 37 - | 38 reserved-memory { 39 #address-cells = <1>; 40 #size-cells = <1>; 41 42 phram: flash@12340000 { 43 compatible = "phram"; 44 label = "rootfs"; 45 reg = <0x12340000 0x00800000>; 46 }; 47 }; 48