Hi Igor, On 24/06/19 10:39, Igor Opaniuk wrote: > From: Igor Opaniuk <igor.opan...@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 15000ms. >
I have no problems to merge this, it is your board. But this seems just hide the issue. 15 seconds for autonegotiation timeout is just a work-around. This means that the autonegotiation fails several times and (maybe with some switches) it has a bigger probability to succeed if we increase the timeout, that is the phy tries more time to set up the link. Best regards, Stefano Babic > Signed-off-by: Igor Opaniuk <igor.opan...@toradex.com> > --- > > v2: > - Based on empirical results from Philippe Schenker, increased timeout > value to 15s, just to be on the safe side > > 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..df31cf6fe7 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 15000 /* PHY needs longer aneg time */ > #define CONFIG_FEC_MXC_PHYADDR 6 > #define CONFIG_TFTP_TSIZE > > -- ===================================================================== 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: sba...@denx.de ===================================================================== _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
