[U-Boot] [PATCH] net/phy: fix select line for TN80xx

[Xie Shaohui-B21989]

Hi, All,

I'm not sure who would be the maintainer should I ask for review, and no comments till now.
Could the patch be applied?
Thanks!

Best Regards, 
Shaohui Xie

> -----Original Message-----
> From: Xie Shaohui-B21989
> Sent: Tuesday, December 18, 2012 2:11 PM
> To: u-boot at lists.denx.de
> Cc: Xie Shaohui-B21989
> Subject: [PATCH] net/phy: fix select line for TN80xx
> 
> TN80xx has same PHY ID as TN2020, but it needs different setting to
> register
> 30.93 which used to select line, so we read register 30.32 which has bit
> 15:12 to indicate PHY hardware version, for TN20xx we will get 3 or 2,
> for TN80xx we will get 5 or 4.
> 
> Signed-off-by: Shaohui Xie <Shaohui.Xie at freescale.com>
> ---
>  drivers/net/phy/teranetics.c |   15 +++++++++++++--
>  1 files changed, 13 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/net/phy/teranetics.c b/drivers/net/phy/teranetics.c
> index 78447b7..c0f13b8 100644
> --- a/drivers/net/phy/teranetics.c
> +++ b/drivers/net/phy/teranetics.c
> @@ -34,9 +34,20 @@ int tn2020_config(struct phy_device *phydev)
>  		unsigned short restart_an = (MDIO_AN_CTRL1_RESTART |
>  						MDIO_AN_CTRL1_ENABLE |
>  						MDIO_AN_CTRL1_XNP);
> +		u8 phy_hwversion;
> 
> -		phy_write(phydev, 30, 93, 2);
> -		phy_write(phydev, MDIO_MMD_AN, MDIO_CTRL1, restart_an);
> +		/*
> +		 * bit 15:12 of register 30.32 indicates PHY hardware
> +		 * version. It can be used to distinguish TN80xx from
> +		 * TN2020. TN2020 needs write 0x2 to 30.93, but TN80xx
> +		 * needs 0x1.
> +		 */
> +		phy_hwversion = (phy_read(phydev, 30, 32) >> 12) & 0xf;
> +		if (phy_hwversion <= 3) {
> +			phy_write(phydev, 30, 93, 2);
> +			phy_write(phydev, MDIO_MMD_AN, MDIO_CTRL1, restart_an);
> +		} else
> +			phy_write(phydev, 30, 93, 1);
>  	}
> 
>  	return 0;
> --
> 1.6.4