netdev - Re: [patch 1/1] phy/marvell: fix 88e1121 support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <4CBD785E.8040704@ti.com>
Date:	Tue, 19 Oct 2010 06:52:14 -0400
From:	Cyril Chemparathy <cyril@...com>
To:	Arnaud Patard <arnaud.patard@...-net.org>
CC:	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"David S. Miller" <davem@...emloft.net>
Subject: Re: [patch 1/1] phy/marvell: fix 88e1121 support

Hi Arnaud,

On 10/18/2010 06:29 PM, Arnaud Patard wrote:
> Commit c477d0447db08068a497e7beb892b2b2a7bff64b added support for RGMII
> rx/tx delays except that it ends up clearing rx/tx delays bit for modes
> differents that RGMII*ID. Due to this, ethernet is not working anymore
> on my guruplug server +. This patch is fixing that.
> 
> Signed-off-by: Arnaud Patard <arnaud.patard@...-net.org>
> Index: linux-2.6/drivers/net/phy/marvell.c
> ===================================================================
> --- linux-2.6.orig/drivers/net/phy/marvell.c	2010-10-18 22:46:09.000000000 +0200
> +++ linux-2.6/drivers/net/phy/marvell.c	2010-10-19 00:20:22.000000000 +0200
> @@ -196,20 +196,27 @@
>  			MII_88E1121_PHY_MSCR_PAGE);
>  	if (err < 0)
>  		return err;
> -	mscr = phy_read(phydev, MII_88E1121_PHY_MSCR_REG) &
> -		MII_88E1121_PHY_MSCR_DELAY_MASK;
>  
> -	if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
> -		mscr |= (MII_88E1121_PHY_MSCR_RX_DELAY |
> -			 MII_88E1121_PHY_MSCR_TX_DELAY);
> -	else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)
> -		mscr |= MII_88E1121_PHY_MSCR_RX_DELAY;
> -	else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
> -		mscr |= MII_88E1121_PHY_MSCR_TX_DELAY;
> +	if ((phydev->interface == PHY_INTERFACE_MODE_RGMII) ||
> +	    (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) ||
> +	    (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) ||
> +	    (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)) {
>  
> -	err = phy_write(phydev, MII_88E1121_PHY_MSCR_REG, mscr);
> -	if (err < 0)
> -		return err;
> +		mscr = phy_read(phydev, MII_88E1121_PHY_MSCR_REG) &
> +			MII_88E1121_PHY_MSCR_DELAY_MASK;
> +
> +		if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
> +			mscr |= (MII_88E1121_PHY_MSCR_RX_DELAY |
> +				 MII_88E1121_PHY_MSCR_TX_DELAY);
> +		else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID)
> +			mscr |= MII_88E1121_PHY_MSCR_RX_DELAY;
> +		else if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID)
> +			mscr |= MII_88E1121_PHY_MSCR_TX_DELAY;
> +
> +		err = phy_write(phydev, MII_88E1121_PHY_MSCR_REG, mscr);
> +		if (err < 0)
> +			return err;
> +	}
>  
>  	phy_write(phydev, MII_88E1121_PHY_PAGE, oldpage);

That looks more correct.  Just out of curiosity, what is the interface
mode on your platform?

Thanks
Cyril.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html