netdev - Re: [PATCH net-next v2] ravb: Add RZ/G2L MII interface support

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Date:   Tue, 13 Sep 2022 19:42:13 +0300
From:   Sergey Shtylyov <s.shtylyov@....ru>
To:     Biju Das <biju.das.jz@...renesas.com>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>
CC:     Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>,
        <netdev@...r.kernel.org>, <linux-renesas-soc@...r.kernel.org>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Chris Paterson <Chris.Paterson2@...esas.com>,
        Biju Das <biju.das@...renesas.com>
Subject: Re: [PATCH net-next v2] ravb: Add RZ/G2L MII interface support

On 9/12/22 1:51 PM, Biju Das wrote:

> EMAC IP found on RZ/G2L Gb ethernet supports MII interface.
> This patch adds support for selecting MII interface mode.
> 
> Signed-off-by: Biju Das <biju.das.jz@...renesas.com>
[...]

> diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h
> index b980bce763d3..0c7c0d404dcb 100644
> --- a/drivers/net/ethernet/renesas/ravb.h
> +++ b/drivers/net/ethernet/renesas/ravb.h
[...]
> @@ -965,6 +966,10 @@ enum CXR31_BIT {
>  	CXR31_SEL_LINK1	= 0x00000008,
>  };
>  
> +enum CXR35_BIT {
> +	CXR35_SEL_MII	= 0x03E80002,

   I'd really prefer that SEL_XMII[1:0] and HALFCYC_CLKSW[15:0] fields to be explicitly
spelled out here (as they are in the manual)...

[...]

MBR, Sergey