[RFC PATCH 1/3] dt-bindings: net: sparx5: Add sparx5-switch bindings

Andrew Lunn andrew at lunn.ch
Fri Nov 27 12:00:52 EST 2020


> +  reg-names:
> +    minItems: 153
> +    items:
> +      - const: dev2g5_0
> +      - const: dev5g_0
> +      - const: pcs5g_br_0
> +      - const: dev2g5_1
> +      - const: dev5g_1
...
> +      - const: ana_ac
> +      - const: vop

> +    switch: switch at 600000000 {
> +      compatible = "microchip,sparx5-switch";
> +      reg = <0x10004000 0x4000>, /* dev2g5_0 */
> +        <0x10008000 0x4000>, /* dev5g_0 */
> +        <0x1000c000 0x4000>, /* pcs5g_br_0 */
> +        <0x10010000 0x4000>, /* dev2g5_1 */
> +        <0x10014000 0x4000>, /* dev5g_1 */

...

> +        <0x11800000 0x100000>, /* ana_l2 */
> +        <0x11900000 0x100000>, /* ana_ac */
> +        <0x11a00000 0x100000>; /* vop */

This is a pretty unusual binding.

Why is it not

reg = <0x10004000 0x1af8000>

and the driver can then break up the memory into its sub ranges?

    Andrew



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