diff --git a/Documentation/devicetree/bindings/remoteproc/allwinner,sun55i-rproc.yaml b/Documentation/devicetree/bindings/remoteproc/allwinner,sun55i-rproc.yaml
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+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/remoteproc/allwinner,sun55i-rproc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner XuanTie E906/E907 RISC-V Remoteproc
+
+maintainers:
+  - Jernej Skrabec <jernej.skrabec@gmail.com>
+  - Samuel Holland <samuel@sholland.org>
+  - Tim Michals <tcmichals@gmail.com>
+
+description:
+  The Allwinner T527, A527, and A523 (sun55i) SoCs integrate a T-Head
+  (XuanTie) E906 or E907 RISC-V co-processor alongside the ARM Cortex-A55
+  cluster. The co-processor runs bare-metal firmware loaded and lifecycle-
+  managed by the Linux remoteproc framework.
+
+  The driver controls CCU-integrated clocks (bus, core) and resets
+  (cfg, core), programs the hardware boot-vector register, maps
+  internal SRAM (SRAM_A3) windows, and connects to the Allwinner
+  hardware mailbox (CPUX_MSGBOX) for VirtIO RPMsg IPC.
+
+properties:
+  compatible:
+    const: allwinner,sun55i-a523-rproc
+
+  reg:
+    minItems: 1
+    maxItems: 4
+    description:
+      Memory-mapped register regions. The following named regions are
+      supported (all optional except at least one of r_sram or r_sram1) -
+      "cfg" for RISC-V core control and boot-vector registers,
+      "r_sram" for dedicated MCU SRAM Space 0,
+      "r_sram1" for switchable MCU SRAM Space 1,
+      "remap" for the hardware remap control register.
+
+  reg-names:
+    minItems: 1
+    maxItems: 4
+    items:
+      enum:
+        - cfg
+        - r_sram
+        - r_sram1
+        - remap
+
+  clocks:
+    minItems: 1
+    maxItems: 5
+
+  clock-names:
+    minItems: 1
+    items:
+      - const: bus
+      - const: core
+      - const: sram
+      - const: msgbox
+      - const: parent
+
+  resets:
+    minItems: 1
+    maxItems: 4
+
+  reset-names:
+    minItems: 1
+    items:
+      - const: cfg
+      - const: core
+      - const: sram
+      - const: msgbox
+
+  mboxes:
+    maxItems: 2
+    description:
+      Exactly two mailbox channels from the Allwinner CPUX_MSGBOX controller,
+      one receive channel (RISC-V-to-ARM) and one transmit channel
+      (ARM-to-RISC-V), used for VirtIO RPMsg kick notifications.
+
+  mbox-names:
+    items:
+      - const: rx
+      - const: tx
+
+  firmware-name:
+    maxItems: 1
+    description:
+      Name of the ELF firmware image to load from /lib/firmware/.
+      Defaults to "riscv-firmware.elf" if not specified.
+
+  memory-region:
+    minItems: 1
+    items:
+      - description: VirtIO vring buffer region (DDR carveout)
+      - description: DRAM firmware execution carveout
+      - description: RemoteProc trace buffer carveout
+
+  memory-region-names:
+    minItems: 1
+    items:
+      - const: vram
+      - const: dram
+      - const: trace
+
+  interrupts:
+    maxItems: 1
+    description:
+      Optional hardware crash-notification interrupt. When present the
+      driver calls rproc_report_crash() on assertion.
+
+  interrupt-names:
+    items:
+      - const: crash
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - clocks
+  - clock-names
+  - resets
+  - reset-names
+  - mboxes
+  - mbox-names
+
+additionalProperties: false
+
+examples:
+  - |
+    remoteproc@7130000 {
+        compatible = "allwinner,sun55i-a523-rproc";
+        reg = <0x07130000 0x1000>,
+              <0x07280000 0x40000>,
+              <0x072c0000 0x40000>,
+              <0x07010364 0x4>;
+        reg-names = "cfg", "r_sram", "r_sram1", "remap";
+        clocks = <&mcu_ccu 3>, <&mcu_ccu 4>;
+        clock-names = "bus", "core";
+        resets = <&mcu_ccu 0>, <&mcu_ccu 1>;
+        reset-names = "cfg", "core";
+        mboxes = <&msgbox 8>, <&msgbox 9>;
+        mbox-names = "rx", "tx";
+        firmware-name = "riscv-firmware.elf";
+    };