Commit a0aca5e3 authored by Krzysztof Kozlowski's avatar Krzysztof Kozlowski Committed by Rob Herring
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dt-bindings: memory: convert Broadcom DPFE to dtschema 



Convert Broadcom DDR PHY Front End (DPFE) bindings to DT schema format
using json-schema.

Signed-off-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: default avatarMarkus Mayer <mmayer@broadcom.com>
Link: https://lore.kernel.org/r/20210817080617.14503-1-krzysztof.kozlowski@canonical.com


Signed-off-by: default avatarRob Herring <robh@kernel.org>
parent cf4b94c8

Documentation/devicetree/bindings/memory-controllers/brcm,dpfe-cpu.txt

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DDR PHY Front End (DPFE) for Broadcom STB

=========================================



DPFE and the DPFE firmware provide an interface for the host CPU to

communicate with the DCPU, which resides inside the DDR PHY.



There are three memory regions for interacting with the DCPU. These are

specified in a single reg property.



Required properties:

  - compatible: must be "brcm,bcm7271-dpfe-cpu", "brcm,bcm7268-dpfe-cpu"

    or "brcm,dpfe-cpu"

  - reg: must reference three register ranges

      - start address and length of the DCPU register space

      - start address and length of the DCPU data memory space

      - start address and length of the DCPU instruction memory space

  - reg-names: must contain "dpfe-cpu", "dpfe-dmem", and "dpfe-imem";

        they must be in the same order as the register declarations



Example:

	dpfe_cpu0: dpfe-cpu@f1132000 {

		compatible = "brcm,bcm7271-dpfe-cpu", "brcm,dpfe-cpu";

		reg =  <0xf1132000 0x180

			0xf1134000 0x1000

			0xf1138000 0x4000>;

		reg-names = "dpfe-cpu", "dpfe-dmem", "dpfe-imem";

	};

Documentation/devicetree/bindings/memory-controllers/brcm,dpfe-cpu.yaml

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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)

%YAML 1.2

---

$id: http://devicetree.org/schemas/memory-controllers/brcm,dpfe-cpu.yaml#

$schema: http://devicetree.org/meta-schemas/core.yaml#



title: DDR PHY Front End (DPFE) for Broadcom STB



maintainers:

  - Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>

  - Markus Mayer <mmayer@broadcom.com>



properties:

  compatible:

    items:

      - enum:

          - brcm,bcm7271-dpfe-cpu

          - brcm,bcm7268-dpfe-cpu

      - const: brcm,dpfe-cpu



  reg:

    items:

      - description: DCPU register space

      - description: DCPU data memory space

      - description: DCPU instruction memory space



  reg-names:

    items:

      - const: dpfe-cpu

      - const: dpfe-dmem

      - const: dpfe-imem



required:

  - compatible

  - reg

  - reg-names



additionalProperties: false



examples:

  - |

    dpfe-cpu@f1132000 {

        compatible = "brcm,bcm7271-dpfe-cpu", "brcm,dpfe-cpu";

        reg = <0xf1132000 0x180>,

              <0xf1134000 0x1000>,

              <0xf1138000 0x4000>;

        reg-names = "dpfe-cpu", "dpfe-dmem", "dpfe-imem";

    };

MAINTAINERS

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@@ -3854,7 +3854,7 @@ M: Markus Mayer <mmayer@broadcom.com> 
M:	bcm-kernel-feedback-list@broadcom.com

L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)

S:	Maintained

F:	Documentation/devicetree/bindings/memory-controllers/brcm,dpfe-cpu.txt

F:	Documentation/devicetree/bindings/memory-controllers/brcm,dpfe-cpu.yaml

F:	drivers/memory/brcmstb_dpfe.c









BROADCOM STB NAND FLASH DRIVER