[PATCH v2 2/4] ARM: dts: add fec phy reset for imx6sl evk board

[Shawn Guo]

On Tue, Sep 03, 2013 at 12:26:23PM +0800, Fugang Duan wrote:
> Add fec phy gpio reset for imx6sl evk board. imx6sl evk board
> use GPIO4_21 to do phy reset, so add phy-reset-gpios and
> phy-reset-duration propery initial for fec device node.
> 
> Signed-off-by: Fugang Duan  <B38611 at freescale.com>

I have to drop this patch for now, because it causes a regression for
me.

Before this patch, we can at least get a working fec driver in kernel if
U-Boot sets it up properly, e.g. we download kernel from network.  But
with the patch, the fec driver stops working on linux-next in the same
use case.

Shawn

> ---
>  arch/arm/boot/dts/imx6sl-evk.dts |    3 +++
>  1 files changed, 3 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/imx6sl-evk.dts b/arch/arm/boot/dts/imx6sl-evk.dts
> index 2886a59..c4d32a5 100644
> --- a/arch/arm/boot/dts/imx6sl-evk.dts
> +++ b/arch/arm/boot/dts/imx6sl-evk.dts
> @@ -23,6 +23,8 @@
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&pinctrl_fec_1>;
>  	phy-mode = "rmii";
> +	phy-reset-gpios = <&gpio4 21 0>; /* GPIO4_21 */
> +	phy-reset-duration = <1>;
>  	status = "okay";
>  };
>  
> @@ -38,6 +40,7 @@
>  				MX6SL_PAD_SD2_DAT7__GPIO5_IO00    0x17059
>  				MX6SL_PAD_SD2_DAT6__GPIO4_IO29    0x17059
>  				MX6SL_PAD_REF_CLK_32K__GPIO3_IO22 0x17059
> +				MX6SL_PAD_FEC_TX_CLK__GPIO4_IO21  0x80000000
>  			>;
>  		};
>  	};
> -- 
> 1.7.1
> 
>