netdev - Re: [PATCH v2 1/1] sh_eth: add RGMII support

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Date:   Fri, 18 May 2018 21:12:39 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
Cc:     netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
        linux-renesas-soc@...r.kernel.org
Subject: Re: [PATCH v2 1/1] sh_eth: add RGMII support

On Fri, May 18, 2018 at 09:30:18PM +0300, Sergei Shtylyov wrote:
> The R-Car V3H (AKA R8A77980) GEther controller  adds support for the RGMII
> PHY interface mode as a new  value  for the RMII_MII register.
> 
> Based on the original (and large) patch by Vladimir Barinov.
> 
> Signed-off-by: Vladimir Barinov <vladimir.barinov@...entembedded.com>
> Signed-off-by: Sergei Shtylyov <sergei.shtylyov@...entembedded.com>
> 
> ---
> Changes in version 2:
> - included PHY_INTERFACE_MODE_RGMII_{|RX|TX}ID in the RGMII *case*.
> 
>  drivers/net/ethernet/renesas/sh_eth.c |    3 +++
>  1 file changed, 3 insertions(+)
> 
> Index: net-next/drivers/net/ethernet/renesas/sh_eth.c
> ===================================================================
> --- net-next.orig/drivers/net/ethernet/renesas/sh_eth.c
> +++ net-next/drivers/net/ethernet/renesas/sh_eth.c
> @@ -466,6 +466,9 @@ static void sh_eth_select_mii(struct net
>  	u32 value;
>  
>  	switch (mdp->phy_interface) {
> +	case PHY_INTERFACE_MODE_RGMII ... PHY_INTERFACE_MODE_RGMII_TXID:
> +		value = 0x3;
> +		break;

Ah, your don't see that form used very often.
I just checked, clang/llvm should also support it.

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

    Andrew