[U-Boot] [PATCH] net/designware: do explicit port selection for 1Gb mode

Alexey Brodkin Alexey.Brodkin at synopsys.com
Mon Jan 11 11:11:18 CET 2016


Hi Joe,

On Wed, 2015-12-23 at 19:46 +0300, Alexey Brodkin wrote:
> Current implementation only sets "port select" bit for non-1Gb mode.
> That works fine if GMAC has just exited reset state but we may as well
> change connection mode in runtime. Then we'll need to reprogram GMAC for
> that new mode of operation and if previous mode was 10 or 100 Mb and new
> one is 1 Gb we'll need to reset port mode bit.
> 
> Signed-off-by: Alexey Brodkin <abrodkin at synopsys.com>
> Cc: Bin Meng <bmeng.cn at gmail.com>
> Cc: Joe Hershberger <joe.hershberger at ni.com>
> Cc: Sonic Zhang <sonic.zhang at analog.com>
> cc: Simon Glass <sjg at chromium.org>
> ---
>  drivers/net/designware.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/net/designware.c b/drivers/net/designware.c
> index a6c39c3..58c6d36 100644
> --- a/drivers/net/designware.c
> +++ b/drivers/net/designware.c
> @@ -200,6 +200,8 @@ static void dw_adjust_link(struct eth_mac_regs *mac_p,
>  
>  	if (phydev->speed != 1000)
>  		conf |= MII_PORTSELECT;
> +	else
> +		conf &= ~MII_PORTSELECT;
>  
>  	if (phydev->speed == 100)
>  		conf |= FES_100;

Any chance for that one to be applied?

-Alexey


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