[U-Boot] [PATCH 1/1] apalis_imx6: increase phy autoneg timeout
dev at pschenker.ch
Mon Jun 24 07:44:52 UTC 2019
On Fri, 2019-06-21 at 14:00 +0300, Igor Opaniuk wrote:
> From: Igor Opaniuk <igor.opaniuk at toradex.com>
> Default value (4000ms) of PHY_ANEG_TIMEOUT for Micrel KSZ9031 contoller
> isn't sufficient to finish auto-negotiation, which sometimes leads to
> timeout errors:
> Apalis iMX6 # dhcp
> FEC Waiting for PHY auto negotiation to complete......... TIMEOUT !
> Increase the auto-negotiation time-out to 8000ms.
Hi Igor, I did a lot of auto-negotiation tests with this PHY. It can happen,
that it has up to 12s for a connection with some partners. So I'd suggest to put
that timeout up to 15s to cover most situations.
> Signed-off-by: Igor Opaniuk <igor.opaniuk at toradex.com>
> include/configs/apalis_imx6.h | 1 +
> 1 file changed, 1 insertion(+)
> diff --git a/include/configs/apalis_imx6.h b/include/configs/apalis_imx6.h
> index 4b0a3fb26b..246d618442 100644
> --- a/include/configs/apalis_imx6.h
> +++ b/include/configs/apalis_imx6.h
> @@ -58,6 +58,7 @@
> #define IMX_FEC_BASE ENET_BASE_ADDR
> #define CONFIG_FEC_XCV_TYPE RGMII
> #define CONFIG_ETHPRIME "FEC"
> +#define PHY_ANEG_TIMEOUT 8000 /* PHY needs longer aneg time */
> #define CONFIG_FEC_MXC_PHYADDR 6
> #define CONFIG_TFTP_TSIZE
More information about the U-Boot