[U-Boot] [PATCH 1/3] net: fec: do not access reserved register for i.MX6ULL

Stefano Babic sbabic at denx.de
Wed Apr 12 16:21:34 UTC 2017


On 10/04/2017 13:44, Peng Fan wrote:
> The MIB RAM and FIFO receive start register does not exist on
> i.MX6ULL. Accessing these register will cause enet not work well or
> cause system report fault.
> 
> Signed-off-by: Peng Fan <peng.fan at nxp.com>
> Cc: Joe Hershberger <joe.hershberger at ni.com>
> ---
>  drivers/net/fec_mxc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c
> index 910879b..ac7afb5 100644
> --- a/drivers/net/fec_mxc.c
> +++ b/drivers/net/fec_mxc.c
> @@ -563,7 +563,7 @@ static int fec_init(struct eth_device *dev, bd_t *bd)
>  	writel(0x00000000, &fec->eth->gaddr2);
>  
>  	/* Do not access reserved register for i.MX6UL */
> -	if (!is_mx6ul()) {
> +	if (!is_mx6ul() && !is_mx6ull()) {
>  		/* clear MIB RAM */
>  		for (i = mib_ptr; i <= mib_ptr + 0xfc; i += 4)
>  			writel(0, i);
> 

Reviewed-by : Stefano Babic <sbabic at denx.de>

Joe, I see Tom has assigned the series  to me. If it is ok for you, I
will merge the series into u-boot-imx.

Regards,
Stefano

-- 
=====================================================================
DENX Software Engineering GmbH,      Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sbabic at denx.de
=====================================================================


More information about the U-Boot mailing list