xref: /freebsd/sys/contrib/device-tree/Bindings/memory-controllers/nuvoton,npcm-memory-controller.yaml (revision f126890a)

# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/memory-controllers/nuvoton,npcm-memory-controller.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Nuvoton NPCM Memory Controller

maintainers:
  - Marvin Lin <kflin@nuvoton.com>
  - Stanley Chu <yschu@nuvoton.com>

description: |
  The Nuvoton BMC SoC supports DDR4 memory with or without ECC (error correction
  check).

  The memory controller supports single bit error correction, double bit error
  detection (in-line ECC in which a section (1/8th) of the memory device used to
  store data is used for ECC storage).

  Note, the bootloader must configure ECC mode for the memory controller.

properties:
  compatible:
    enum:
      - nuvoton,npcm750-memory-controller
      - nuvoton,npcm845-memory-controller

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

required:
  - compatible
  - reg
  - interrupts

additionalProperties: false

examples:
  - |
    #include <dt-bindings/interrupt-controller/arm-gic.h>

    mc: memory-controller@f0824000 {
        compatible = "nuvoton,npcm750-memory-controller";
        reg = <0xf0824000 0x1000>;
        interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
    };