On Mon, Aug 02, 2021 at 11:26:47AM +0100, Biju Das wrote:

The DMAC and EMAC blocks of Gigabit Ethernet IP found on RZ/G2L SoC are
similar to the R-Car Ethernet AVB IP. With a few changes in the driver we
can support both IPs.

Currently a runtime decision based on the chip type is used to distinguish
the HW differences between the SoC families.

The number of TX descriptors for R-Car Gen3 is 1 whereas on R-Car Gen2 and
RZ/G2L it is 2. For cases like this it is better to select the number of
TX descriptors by using a structure with a value, rather than a runtime
decision based on the chip type.

This patch adds the num_tx_desc variable to struct ravb_hw_info and also
replaces the driver data chip type with struct ravb_hw_info by moving chip
type to it.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>

Hi Biju

This is better. A lot clearer what is going on. I personally would of
done the num_tx_desc change as a separate patch, but this is O.K.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>

    Andrew