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* How to debug Ethernet connectivity
@ 2013-12-06 10:21 Atilla Filiz
  2013-12-06 10:34 ` Sascha Hauer
  2013-12-06 10:52 ` Antony Pavlov
  0 siblings, 2 replies; 15+ messages in thread
From: Atilla Filiz @ 2013-12-06 10:21 UTC (permalink / raw)
  To: barebox

Hello

I have been tasked to debug a port of Barebox to our custom board. It
has one Ethernet interface. All network related(dhcp, ping ...) tasks
fail with "Network is down" error, although the link lights on my
switch are on. So I did this on 2013.06:

--- barebox-2013.06.0.orig/net/
eth.c    2013-06-02 12:24:06.000000000 +0200
+++ barebox-2013.06.0/net/eth.c    2013-12-03 16:52:40.428089000 +0100
@@ -142,12 +142,16 @@

     if (force || is_timeout(last_link_check, 5 * SECOND) ||
             !eth_current->phydev->link) {
         ret = phy_update_status(eth_current->phydev);
         if (ret)
             return ret;
         last_link_check = get_time_ns();
     }

+    return 0;
     return eth_current->phydev->link ? 0 : -ENETDOWN;
 }

This bypasses link detection and assumes the link is always up. This
way, I got dhcp, ping and tftp working.

How can I debug this further to hunt down the Ethernet problem?
Something seems wrong with my PHY settings. This is an iMX27 based
board. Which files/functions/structures do I need to check?

--
Atilla Filiz

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^ permalink raw reply	[flat|nested] 15+ messages in thread

end of thread, other threads:[~2013-12-11 10:29 UTC | newest]

Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2013-12-06 10:21 How to debug Ethernet connectivity Atilla Filiz
2013-12-06 10:34 ` Sascha Hauer
2013-12-06 10:52 ` Antony Pavlov
2013-12-06 12:17   ` Atilla Filiz
2013-12-06 12:18     ` Atilla Filiz
2013-12-06 12:21       ` Alexander Aring
2013-12-06 12:39       ` Sascha Hauer
2013-12-06 12:43         ` Alexander Aring
2013-12-10 13:31           ` Atilla Filiz
2013-12-10 15:24             ` Antony Pavlov
2013-12-10 17:46               ` Alexander Aring
2013-12-11  9:39                 ` Atilla Filiz
2013-12-11 10:28                   ` Sascha Hauer
2013-12-10 15:30             ` Antony Pavlov
2013-12-11 10:25               ` Sascha Hauer

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