[U-Boot-Users] [PATCH] ColdFire: Fix FEC transmit issue for MCF5275

[Ben Warren <bwarren@qstreams.com>]

Tsi-Chung Liew wrote:
> Signed-off-by: TsiChung Liew <Tsi-Chung.Liew@freescale.com>
> ---
>  drivers/net/mcffec.c |    7 +++++++
>  1 files changed, 7 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/net/mcffec.c b/drivers/net/mcffec.c
> index 3b81258..71d1960 100644
> --- a/drivers/net/mcffec.c
> +++ b/drivers/net/mcffec.c
> @@ -166,6 +166,13 @@ int fec_send(struct eth_device *dev, volatile void *packet, int length)
>  	/* Activate transmit Buffer Descriptor polling */
>  	fecp->tdar = 0x01000000;	/* Descriptor polling active    */
>  
> +	/* FEC fix for MCF5275, FEC unable to initial transmit data packet.
> +	 * A nop will ensure the descriptor polling active completed.
> +	 */
> +#ifdef CONFIG_M5275
> +	__asm__ ("nop");
> +#endif
> +
>  #ifdef CFG_UNIFY_CACHE
>  	icache_invalid();
>  #endif
>   
Applied to net tree. As others have noted, adding a NOP here seems like 
a band-aid, but I can't really dispute it.

thanks,
Ben