[U-Boot] [PATCH] tsec: Fix a bug in soft-resetting

[Ben Warren]

Hi Andy,

Andy Fleming wrote:
> SOFT_RESET must be asserted for at least 3 TX clocks.  Usually, that's about 30
> clock cycles, so it's been mostly working.  But we had no guarantee, and at
> slower bitrates, it's just over a microsecond (over 1000 clock cycles).  This
> enforces a 2 microsecond gap between assertion and deassertion.
>
> Signed-off-by: Andy Fleming <afleming at freescale.com>
> ---
>  drivers/net/tsec.c |    1 +
>  1 files changed, 1 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/net/tsec.c b/drivers/net/tsec.c
> index fbc9a6d..4682c8b 100644
> --- a/drivers/net/tsec.c
> +++ b/drivers/net/tsec.c
> @@ -158,6 +158,7 @@ int tsec_initialize(bd_t * bis, struct tsec_info_struct *tsec_info)
>  
>  	/* Reset the MAC */
>  	priv->regs->maccfg1 |= MACCFG1_SOFT_RESET;
> +	udelay(2);  /* Soft Reset must be asserted for 3 TX clocks */
>  	priv->regs->maccfg1 &= ~(MACCFG1_SOFT_RESET);
>  
>  #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII) \
>   
Applied to net repo.

thanks,
Ben