From: JerryVanBaren <gerald.vanbaren@ge.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] LAN Timeout
Date: Wed, 10 Sep 2008 07:36:24 -0400 [thread overview]
Message-ID: <48C7B138.7040003@ge.com> (raw)
In-Reply-To: <48C78C37.9090707@denx.de>
Anatolij Gustschin wrote:
> Hello,
>
> Manuel Sahm wrote:
>
>> does anybody have an idea to fix this problem ?
>>
>> Which paramter is for the "lan connection timeout" ?
>
> Try to decrease CFG_MACB_AUTONEG_TIMEOUT in drivers/net/macb.c
> to 500000 or so. It is currently 5000000 which results in
> 5 sec. timeout in macb_phy_init() and also in macb_phy_reset().
>
> Best regards,
> Anatolij
Caution: don't reduce it to less than 2 seconds. The minimum PHY
autonegotiation time is 2 seconds per definition by the standard: if you
read the standard and add all the delays together, the sum is 2 seconds.
I've never seen a PHY take noticeably longer than 2 seconds for
autonegotiation, but there is a world of PHYs out there that I've never
tried.
Best regards,
gvb
prev parent reply other threads:[~2008-09-10 11:36 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-08-26 8:44 [U-Boot] LAN Timeout Manuel Sahm
2008-09-01 6:07 ` Manuel Sahm
2008-09-10 11:52 ` Andre Schwarz
2008-09-10 6:43 ` Manuel Sahm
2008-09-10 8:58 ` Anatolij Gustschin
2008-09-10 11:36 ` JerryVanBaren [this message]
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