Re: [PATCH net-next v7 1/2] dt-bindings: net: x-powers: add AC200/AC300 EPHY packages

[Krzysztof Kozlowski <krzk@kernel.org>]

On Tue, Aug 11, 2026 at 05:28:32PM -0600, James Hilliard wrote:
> The AC200 and AC300 contain compatible Fast Ethernet link PHYs which
> report the same Clause 22 identifier and use the same link-side register
> layout. Their package control paths differ: AC200 control registers are
> accessed through the I2C register interface of the companion IC, while
> the AC300 control range is at a second Clause 22 address fixed at 16 plus
> the link address.
> 
> Describe both variants as Ethernet PHY packages. The package reg value is
> the link PHY base address and the child supplies the documented PHY ID,
> because the identification registers cannot be read until package setup
> has completed. The AC300 driver reaches its control range with the PHY
> package offset helpers. The AC200 package instead references the
> companion IC whose I2C interface provides access to the package controls.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>

Best regards,
Krzysztof