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[0/9] YAML conversion of several Freescale/PowerPC DT bindings

Message ID 20250126-ppcyaml-v1-0-50649f51c3dd@posteo.net
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Series YAML conversion of several Freescale/PowerPC DT bindings | expand

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J. Neuschäfer via B4 Relay Jan. 26, 2025, 6:58 p.m. UTC
This is a spin-off of the series titled
"powerpc: MPC83xx cleanup and LANCOM NWAPP2 board".

During the development of that series, it became clear that many
devicetree bindings for Freescale MPC8xxx platforms are still in the old
plain-text format, or don't exist at all, and in any case don't mention
all valid compatible strings.

Signed-off-by: J. Neuschäfer <j.ne@posteo.net>
---
J. Neuschäfer (9):
      dt-bindings: powerpc: Add binding for Freescale/NXP MPC83xx SoCs
      dt-bindings: ata: Convert fsl,pq-sata binding to YAML
      dt-bindings: crypto: Convert fsl,sec-2.0 binding to YAML
      dt-bindings: mfd: Convert fsl,mcu-mpc8349emitx binding to YAML
      dt-bindings: dma: Convert fsl,elo*-dma bindings to YAML
      dt-bindings: pci: Add fsl,mpc83xx-pcie bindings
      dt-bindings: watchdog: Convert mpc8xxx-wdt binding to YAML
      dt-bindings: spi: Convert Freescale SPI bindings to YAML
      [RFC] dt-bindings: nand: Convert fsl,elbc bindings to YAML

 .../devicetree/bindings/ata/fsl,pq-sata.yaml       |  59 ++++++
 Documentation/devicetree/bindings/ata/fsl-sata.txt |  28 ---
 .../devicetree/bindings/crypto/fsl,sec2.0.yaml     | 139 ++++++++++++++
 .../devicetree/bindings/crypto/fsl-sec2.txt        |  65 -------
 .../devicetree/bindings/dma/fsl,elo-dma.yaml       | 129 +++++++++++++
 .../devicetree/bindings/dma/fsl,elo3-dma.yaml      | 105 +++++++++++
 .../devicetree/bindings/dma/fsl,eloplus-dma.yaml   | 120 ++++++++++++
 .../bindings/mfd/fsl,mcu-mpc8349emitx.yaml         |  53 ++++++
 .../devicetree/bindings/mtd/fsl,elbc-fcm-nand.yaml |  61 ++++++
 .../devicetree/bindings/pci/fsl,mpc8xxx-pci.yaml   |  83 +++++++++
 .../devicetree/bindings/powerpc/fsl/dma.txt        | 204 ---------------------
 .../bindings/powerpc/fsl/fsl,elbc-gpcm-uio.yaml    |  55 ++++++
 .../devicetree/bindings/powerpc/fsl/fsl,elbc.yaml  | 150 +++++++++++++++
 .../bindings/powerpc/fsl/fsl,mpc83xx.yaml          |  67 +++++++
 .../devicetree/bindings/powerpc/fsl/lbc.txt        |  43 -----
 .../bindings/powerpc/fsl/mcu-mpc8349emitx.txt      |  17 --
 .../devicetree/bindings/spi/fsl,espi.yaml          |  56 ++++++
 Documentation/devicetree/bindings/spi/fsl,spi.yaml |  71 +++++++
 Documentation/devicetree/bindings/spi/fsl-spi.txt  |  62 -------
 .../devicetree/bindings/watchdog/mpc8xxx-wdt.txt   |  25 ---
 .../devicetree/bindings/watchdog/mpc8xxx-wdt.yaml  |  64 +++++++
 21 files changed, 1212 insertions(+), 444 deletions(-)
---
base-commit: ffd294d346d185b70e28b1a28abe367bbfe53c04
change-id: 20250126-ppcyaml-680ccd8b3fc2

Best regards,

Comments

Krzysztof Kozlowski Jan. 27, 2025, 8:37 a.m. UTC | #1
On Sun, Jan 26, 2025 at 07:59:04PM +0100, J. Neuschäfer wrote:
> Convert the Freescale localbus controller bindings from text form to
> YAML. The list of compatible strings reflects current usage.

simple-bus and 20 other compatibles you used were not present in the
original binding. Does above "list of compatible strings" mean you just
added them?

> 
> Changes compared to the txt version:
>  - removed the board-control (fsl,mpc8272ads-bcsr) node because it only
>    appears in this example and nowhere else
>  - added a new example with NAND flash
> 
> Remaining issues:
>  - The localbus is not really a simple-bus: Unit addresses are not simply
>    addresses on a memory bus. Instead, they have a format: The first cell
>    is a chip select number, the remaining one or two cells are bus
>    addresses.
> 
> Signed-off-by: J. Neuschäfer <j.ne@posteo.net>
> ---
>  .../devicetree/bindings/mtd/fsl,elbc-fcm-nand.yaml |  61 +++++++++
>  .../bindings/powerpc/fsl/fsl,elbc-gpcm-uio.yaml    |  55 ++++++++

Please split the conversion from adding new bindings. For example above
file and its compatible fsl,elbc-gpcm-uio was not documented in original
TXT.

...

> diff --git a/Documentation/devicetree/bindings/powerpc/fsl/fsl,elbc.yaml b/Documentation/devicetree/bindings/powerpc/fsl/fsl,elbc.yaml
> new file mode 100644
> index 0000000000000000000000000000000000000000..6bbceb82c77826499abe85879e9189b18d396eea
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/powerpc/fsl/fsl,elbc.yaml
> @@ -0,0 +1,150 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/powerpc/fsl/fsl,elbc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Freescale Enhanced Local Bus Controller

What sort of bus is it? Memory bus? Then place it with others, see
memory directory.

> +
> +maintainers:
> +  - J. Neuschäfer <j.ne@posteo.net>
> +
> +properties:
> +  $nodename:
> +    pattern: "^localbus@[0-9a-f]+$"
> +
> +  compatible:
> +    oneOf:
> +      - items:
> +          - enum:
> +              - fsl,mpc8313-elbc
> +              - fsl,mpc8315-elbc
> +              - fsl,mpc8377-elbc
> +              - fsl,mpc8378-elbc
> +              - fsl,mpc8379-elbc
> +              - fsl,mpc8536-elbc
> +              - fsl,mpc8569-elbc
> +              - fsl,mpc8572-elbc
> +              - fsl,p1020-elbc
> +              - fsl,p1021-elbc
> +              - fsl,p1023-elbc
> +              - fsl,p2020-elbc
> +              - fsl,p2041-elbc
> +              - fsl,p3041-elbc
> +              - fsl,p4080-elbc
> +              - fsl,p5020-elbc
> +              - fsl,p5040-elbc
> +          - const: fsl,elbc
> +          - const: simple-bus
> +
> +      - items:
> +          - const: fsl,mpc8272-localbus
> +          - const: fsl,pq2-localbus
> +
> +      - items:
> +          - enum:
> +              - fsl,mpc8247-localbus
> +              - fsl,mpc8248-localbus
> +              - fsl,mpc8360-localbus
> +          - const: fsl,pq2pro-localbus
> +          - const: simple-bus
> +
> +      - items:
> +          - enum:
> +              - fsl,mpc8540-localbus
> +              - fsl,mpc8544-lbc
> +              - fsl,mpc8544-localbus
> +              - fsl,mpc8548-lbc
> +              - fsl,mpc8548-localbus
> +              - fsl,mpc8560-localbus
> +              - fsl,mpc8568-localbus
> +          - const: fsl,pq3-localbus
> +          - const: simple-bus
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  "#address-cells":
> +    enum: [2, 3]
> +    description: |
> +      The first cell is the chipselect number, and the remaining cells are the
> +      offset into the chipselect.
> +
> +  "#size-cells":
> +    enum: [1, 2]
> +    description: |
> +      Either one or two, depending on how large each chipselect can be.
> +
> +  ranges:
> +    description: |
> +      Each range corresponds to a single chipselect, and covers the entire
> +      access window as configured.
> +
> +patternProperties:
> +  "^.*@.*$":
> +    type: object

And probably you need 
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    localbus@f0010100 {
> +        compatible = "fsl,mpc8272-localbus",
> +                     "fsl,pq2-localbus";
> +        #address-cells = <2>;
> +        #size-cells = <1>;
> +        reg = <0xf0010100 0x40>;

compatible, then reg - see DTS coding style.

> +
> +        ranges = <0x0 0x0 0xfe000000 0x02000000
> +                  0x1 0x0 0xf4500000 0x00008000
> +                  0x2 0x0 0xfd810000 0x00010000>;
> +
> +        flash@0,0 {
> +            compatible = "jedec-flash";
> +            reg = <0x0 0x0 0x2000000>;

Well, here it is correct

> +            bank-width = <4>;
> +            device-width = <1>;
> +        };
> +
> +        simple-periph@2,0 {
> +            compatible = "fsl,elbc-gpcm-uio";
> +            reg = <0x2 0x0 0x10000>;
> +            elbc-gpcm-br = <0xfd810800>;
> +            elbc-gpcm-or = <0xffff09f7>;
> +        };
> +    };
> +
> +  - |
> +    localbus@e0005000 {

compatible, reg

> +        #address-cells = <2>;
> +        #size-cells = <1>;
> +        compatible = "fsl,mpc8315-elbc", "fsl,elbc", "simple-bus";
> +        reg = <0xe0005000 0x1000>;
> +        interrupts = <77 0x8>;
> +        interrupt-parent = <&ipic>;
> +
> +        ranges = <0x0 0x0 0xfe000000 0x00800000
> +                  0x1 0x0 0xe0600000 0x00002000
> +                  0x2 0x0 0xf0000000 0x00020000
> +                  0x3 0x0 0xfa000000 0x00008000>;
> +
> +        flash@0,0 {

compatible, reg

> +            #address-cells = <1>;
> +            #size-cells = <1>;
> +            compatible = "cfi-flash";
> +            reg = <0x0 0x0 0x800000>;
> +            bank-width = <2>;
> +            device-width = <1>;
> +        };
> +
> +        nand@1,0 {

compatible, reg

> +            #address-cells = <1>;
> +            #size-cells = <1>;
> +            compatible = "fsl,mpc8315-fcm-nand",
> +                         "fsl,elbc-fcm-nand";
> +            reg = <0x1 0x0 0x2000>;
> +        };

Best regards,
Krzysztof