Subject: Re: [PATCH net-next] stmmac: added device tree support for fixed_phy and phy_addr

From: Giuseppe CAVALLARO <[email-masked]>
Date: Thu, 13 Jun 2013 12:02:07 +0200

On 6/13/2013 3:25 AM, Byungho An wrote:
> 
> This patch adds device tree support for fixed_phy and phy_addr it means
> fixed_phy and phy_addr can be set in device tree file. "fixed_phy" and
> "phy_addr" can be added in the device tree blob.

concerning this, we had added some work to pass from the platform
the fixed bus name.

http://git.stlinux.com/?p=stm/linux-stm.git;a=blob;f=drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c;h=2d540e1d2151e4412a5af5356d24d5c6b66cf72e;hb=HEAD

I wanted to also do a clean-up and update the DT support because
the binding documentation remains obsolete etc.

peppe

> 
> Signed-off-by: Byungho An <[email-masked]>
> ---
>   drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c |    7 +++++++
>   1 file changed, 7 insertions(+)
> 
> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
> b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
> index 1d3780f..33ba995 100644
> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c
> @@ -34,6 +34,7 @@ static int stmmac_probe_config_dt(struct platform_device
> *pdev,
>   				  const char **mac)
>   {
>   	struct device_node *np = pdev->dev.of_node;
> +	u32 phy_addr;
>   
>   	if (!np)
>   		return -ENODEV;
> @@ -56,6 +57,12 @@ static int stmmac_probe_config_dt(struct platform_device
> *pdev,
>   		plat->pmt = 1;
>   	}
>   
> +	if (of_find_property(np, "fixed_phy", NULL)) {
> +		plat->phy_bus_name = "fixed";
> +		of_property_read_u32(np, "phy_addr", &phy_addr);
> +		plat->phy_addr = phy_addr;
> +	}
> +
>   	return 0;
>   }
>   #else
>