Re: [PATCH net-next v7 01/14] dt-bindings: net: Add PPE for Qualcomm IPQ9574 SoC

[Rob Herring (Arm)]

On Tue, 12 Aug 2025 22:10:25 +0800, Luo Jie wrote:
> The PPE (packet process engine) hardware block is available in Qualcomm
> IPQ chipsets that support PPE architecture, such as IPQ9574. The PPE in
> the IPQ9574 SoC includes six ethernet ports (6 GMAC and 6 XGMAC), which
> are used to connect with external PHY devices by PCS. It includes an L2
> switch function for bridging packets among the 6 ethernet ports and the
> CPU port. The CPU port enables packet transfer between the ethernet ports
> and the ARM cores in the SoC, using the ethernet DMA.
> 
> The PPE also includes packet processing offload capabilities for various
> networking functions such as route and bridge flows, VLANs, different
> tunnel protocols and VPN.
> 
> The PPE switch is modeled according to the ethernet switch schema, with
> additional properties defined for the switch node for interrupts, clocks,
> resets, interconnects and Ethernet DMA. The switch port node is extended
> with additional properties for clocks and resets.
> 
> Signed-off-by: Luo Jie <quic_luoj@xxxxxxxxxxx>
> ---
>  .../devicetree/bindings/net/qcom,ipq9574-ppe.yaml  | 533 +++++++++++++++++++++
>  1 file changed, 533 insertions(+)
> 

Reviewed-by: Rob Herring (Arm) <robh@xxxxxxxxxx>