Discussion:
[uClinux-dev] Ehernet FEC problem in Coldfire M5272C3
Ashish Phogat
2013-03-25 22:03:05 UTC
Permalink
Hi,
I am facing a very old problem with my Ethernet connection on M5272C3
coldfire board. As soon as my uclinux boots I got the following logs shown
below:


Command: cat /etc/motd
Welcome to
____ _ _
/ __| ||_|
_ _| | | | _ ____ _ _ _ _
| | | | | | || | _ \| | | |\ \/ /
| |_| | |__| || | | | | |_| |/ \
| ___\____|_||_|_| |_|\____|\_/\_/
| |
|_|

For further information check:
http://www.uclinux.org/

Execution Finished, Exiting

Sash command shell (version 1.1.1)

/> NETDEV WATCHDOG: eth0: transmit timed out
eth0: transmit timed out.
Ring data dump: cur_tx 321100, dirty_tx 321100 cur_rx: 321000
tx: 16 buffers
00321100: 0000 0012 00000000
00321108: 0000 0816 00000000
00321110: 0000 001a 00000000
00321118: 0000 0c1e 00000000
00321120: 0000 0432 00000000
00321128: 0000 40a6 00000000
00321130: 0000 002a 00000000
00321138: 0000 002e 00000000
00321140: 0000 0032 00000000
00321148: 0000 0036 00000000
00321150: 0000 003a 00000000

rx: 32 buffers
00321000: 8000 0440 00320000
00321008: 8000 0c70 00320800
00321010: 8000 092b 0037f000
00321018: 8000 ff9a 0037f800
00321020: 8000 7fa2 0037e000
00321028: 8000 eda6 0037e800
00321030: 8000 ffa2 0037d000
00321038: 8000 ffa6 0037d800
00321040: 8000 ffb2 0037c000
00321048: 8000 ffb6 0037c800
0032

Spurious interrupt 1


uclinux simply hangs there. I found that there is a large amount of people
who are getting the same problem in past couple of years. But I did not get
any solution for the problem.

Please let me know whether this problem still exists in uclinux source code
for M5272C3. where I will find the solution for that?

My Ethernet Hardware Info:
fec.c: Probe number 1 with 0x0000
eth0: FEC ENET Version 0.2, 00:e0:0c:bc:e5:60
fec: PHY @ 0x1, ID 0x0022561b -- AM79C874

Thanks and Appreciated for your help.

Thanks
Ashish Phogat
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Greg Ungerer
2013-03-26 01:48:18 UTC
Permalink
Hi Ashish,
What version of kernel?
What version of uClinux-dist?

Regards
Greg
Post by Ashish Phogat
Command: cat /etc/motd
Welcome to
____ _ _
/ __| ||_|
_ _| | | | _ ____ _ _ _ _
| | | | | | || | _ \| | | |\ \/ /
| |_| | |__| || | | | | |_| |/ \
| ___\____|_||_|_| |_|\____|\_/\_/
| |
|_|
http://www.uclinux.org/
Execution Finished, Exiting
Sash command shell (version 1.1.1)
/> NETDEV WATCHDOG: eth0: transmit timed out
eth0: transmit timed out.
Ring data dump: cur_tx 321100, dirty_tx 321100 cur_rx: 321000
tx: 16 buffers
00321100: 0000 0012 00000000
00321108: 0000 0816 00000000
00321110: 0000 001a 00000000
00321118: 0000 0c1e 00000000
00321120: 0000 0432 00000000
00321128: 0000 40a6 00000000
00321130: 0000 002a 00000000
00321138: 0000 002e 00000000
00321140: 0000 0032 00000000
00321148: 0000 0036 00000000
00321150: 0000 003a 00000000
rx: 32 buffers
00321000: 8000 0440 00320000
00321008: 8000 0c70 00320800
00321010: 8000 092b 0037f000
00321018: 8000 ff9a 0037f800
00321020: 8000 7fa2 0037e000
00321028: 8000 eda6 0037e800
00321030: 8000 ffa2 0037d000
00321038: 8000 ffa6 0037d800
00321040: 8000 ffb2 0037c000
00321048: 8000 ffb6 0037c800
0032
Spurious interrupt 1
uclinux simply hangs there. I found that there is a large amount of people who are getting the same problem in past couple of years. But I did not get any solution for the problem.
Please let me know whether this problem still exists in uclinux source code for M5272C3. where I will find the solution for that?
fec.c: Probe number 1 with 0x0000
eth0: FEC ENET Version 0.2, 00:e0:0c:bc:e5:60
Thanks and Appreciated for your help.
Thanks
Ashish Phogat
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Ashish Phogat
2013-03-26 20:12:09 UTC
Permalink
---------- Forwarded message ----------
From: Ashish Phogat <engineerphogat at gmail.com>
Date: Tue, Mar 26, 2013 at 8:46 AM
Subject: Re: [uClinux-dev] Ehernet FEC problem in Coldfire M5272C3
To: Greg Ungerer <gregungerer at westnet.com.au>


Hi,
My Kernel is 2.4.34.5 and uClinux-dist is uClinux-dist-20120401.tar.bz2.

Thanks for Replying.

Thanks
Ashish Phogat
Post by Greg Ungerer
Hi Ashish,
Post by Ashish Phogat
I am facing a very old problem with my Ethernet connection on M5272C3
coldfire board. As soon as my uclinux boots I got the following logs shown
What version of kernel?
What version of uClinux-dist?
Regards
Greg
Post by Ashish Phogat
Command: cat /etc/motd
Welcome to
____ _ _
/ __| ||_|
_ _| | | | _ ____ _ _ _ _
| | | | | | || | _ \| | | |\ \/ /
| |_| | |__| || | | | | |_| |/ \
| ___\____|_||_|_| |_|\____|\_/\_/
| |
|_|
http://www.uclinux.org/
Execution Finished, Exiting
Sash command shell (version 1.1.1)
/> NETDEV WATCHDOG: eth0: transmit timed out
eth0: transmit timed out.
Ring data dump: cur_tx 321100, dirty_tx 321100 cur_rx: 321000
tx: 16 buffers
00321100: 0000 0012 00000000
00321108: 0000 0816 00000000
00321110: 0000 001a 00000000
00321118: 0000 0c1e 00000000
00321120: 0000 0432 00000000
00321128: 0000 40a6 00000000
00321130: 0000 002a 00000000
00321138: 0000 002e 00000000
00321140: 0000 0032 00000000
00321148: 0000 0036 00000000
00321150: 0000 003a 00000000
rx: 32 buffers
00321000: 8000 0440 00320000
00321008: 8000 0c70 00320800
00321010: 8000 092b 0037f000
00321018: 8000 ff9a 0037f800
00321020: 8000 7fa2 0037e000
00321028: 8000 eda6 0037e800
00321030: 8000 ffa2 0037d000
00321038: 8000 ffa6 0037d800
00321040: 8000 ffb2 0037c000
00321048: 8000 ffb6 0037c800
0032
Spurious interrupt 1
uclinux simply hangs there. I found that there is a large amount of
people who are getting the same problem in past couple of years. But I did
not get any solution for the problem.
Post by Ashish Phogat
Please let me know whether this problem still exists in uclinux source
code for M5272C3. where I will find the solution for that?
Post by Ashish Phogat
fec.c: Probe number 1 with 0x0000
eth0: FEC ENET Version 0.2, 00:e0:0c:bc:e5:60
Thanks and Appreciated for your help.
Thanks
Ashish Phogat
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uClinux-dev at uclinux.org
http://mailman.uclinux.org/mailman/listinfo/uclinux-dev
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Ashish Phogat
2013-03-27 12:54:14 UTC
Permalink
Hi Greg,
When I did cat proc/interrupts:

/> cat /proc/interrupts
66: 0 fec(MII)
72: 3393 ColdFire Timer
73: 1084 ColdFire UART
74: 0 ColdFire UART
77: 0 ColdFire USB (EP0)
78: 0 ColdFire USB (EP1)
79: 0 ColdFire USB (EP2)
80: 0 ColdFire USB (EP3)
81: 0 ColdFire USB (EP4)
82: 0 ColdFire USB (EP5)
83: 0 ColdFire USB (EP6)
84: 0 ColdFire USB (EP7)
86: 0 fec(RX)
87: 0 fec(TX)
88: 13 fec(OTHER)
89: 0 ColdFire QSPI

Thanks
Ashish phogat
Post by Greg Ungerer
Hi Ashish,
Post by Ashish Phogat
My Kernel is 2.4.34.5 and uClinux-dist is uClinux-dist-20120401.tar.bz2.
Ok. I haven't run 2.4 kernels for a long time... but some comments
below.
Post by Ashish Phogat
Post by Ashish Phogat
/> NETDEV WATCHDOG: eth0: transmit timed out
eth0: transmit timed out.
Ring data dump: cur_tx 321100, dirty_tx 321100 cur_rx: 321000
tx: 16 buffers
00321100: 0000 0012 00000000
00321108: 0000 0816 00000000
00321110: 0000 001a 00000000
00321118: 0000 0c1e 00000000
00321120: 0000 0432 00000000
00321128: 0000 40a6 00000000
00321130: 0000 002a 00000000
00321138: 0000 002e 00000000
00321140: 0000 0032 00000000
00321148: 0000 0036 00000000
00321150: 0000 003a 00000000
rx: 32 buffers
00321000: 8000 0440 00320000
00321008: 8000 0c70 00320800
00321010: 8000 092b 0037f000
00321018: 8000 ff9a 0037f800
00321020: 8000 7fa2 0037e000
00321028: 8000 eda6 0037e800
00321030: 8000 ffa2 0037d000
00321038: 8000 ffa6 0037d800
00321040: 8000 ffb2 0037c000
00321048: 8000 ffb6 0037c800
0032
Spurious interrupt 1
Together this looks like an interrupt issue. What do you see
if you "cat /proc/interrupts"?
Regards
Greg
Post by Ashish Phogat
Post by Ashish Phogat
uclinux simply hangs there. I found that there is a large amount
of people who are getting the same problem in past couple of years.
But I did not get any solution for the problem.
Post by Ashish Phogat
Please let me know whether this problem still exists in uclinux
source code for M5272C3. where I will find the solution for that?
Post by Ashish Phogat
fec.c: Probe number 1 with 0x0000
eth0: FEC ENET Version 0.2, 00:e0:0c:bc:e5:60
Thanks and Appreciated for your help.
Thanks
Ashish Phogat
_______________________________________________
uClinux-dev mailing list
uClinux-dev at uclinux.org <mailto:uClinux-dev at uclinux.org>
http://mailman.uclinux.org/mailman/listinfo/uclinux-dev
This message was resent by uclinux-dev at uclinux.org
<mailto:uclinux-dev at uclinux.org>
Post by Ashish Phogat
http://mailman.uclinux.org/mailman/options/uclinux-dev
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Natarajan BLR
2013-03-28 03:13:23 UTC
Permalink
hat yourself, Mami and children are doing good.
How is Mahesh doing?
I await zawaiting the dispatch of this book . I will come back to you soon
after reading.

You may send me the file (WORD???) should you want me do DTP Work.

Regards

Natarajan
Post by Ashish Phogat
Hi Greg,
/> cat /proc/interrupts
66: 0 fec(MII)
72: 3393 ColdFire Timer
73: 1084 ColdFire UART
74: 0 ColdFire UART
77: 0 ColdFire USB (EP0)
78: 0 ColdFire USB (EP1)
79: 0 ColdFire USB (EP2)
80: 0 ColdFire USB (EP3)
81: 0 ColdFire USB (EP4)
82: 0 ColdFire USB (EP5)
83: 0 ColdFire USB (EP6)
84: 0 ColdFire USB (EP7)
86: 0 fec(RX)
87: 0 fec(TX)
88: 13 fec(OTHER)
89: 0 ColdFire QSPI
Thanks
Ashish phogat
Post by Greg Ungerer
Hi Ashish,
Post by Ashish Phogat
My Kernel is 2.4.34.5 and uClinux-dist is uClinux-dist-20120401.tar.bz2.
Ok. I haven't run 2.4 kernels for a long time... but some comments
below.
Post by Ashish Phogat
Post by Ashish Phogat
/> NETDEV WATCHDOG: eth0: transmit timed out
eth0: transmit timed out.
Ring data dump: cur_tx 321100, dirty_tx 321100 cur_rx: 321000
tx: 16 buffers
00321100: 0000 0012 00000000
00321108: 0000 0816 00000000
00321110: 0000 001a 00000000
00321118: 0000 0c1e 00000000
00321120: 0000 0432 00000000
00321128: 0000 40a6 00000000
00321130: 0000 002a 00000000
00321138: 0000 002e 00000000
00321140: 0000 0032 00000000
00321148: 0000 0036 00000000
00321150: 0000 003a 00000000
rx: 32 buffers
00321000: 8000 0440 00320000
00321008: 8000 0c70 00320800
00321010: 8000 092b 0037f000
00321018: 8000 ff9a 0037f800
00321020: 8000 7fa2 0037e000
00321028: 8000 eda6 0037e800
00321030: 8000 ffa2 0037d000
00321038: 8000 ffa6 0037d800
00321040: 8000 ffb2 0037c000
00321048: 8000 ffb6 0037c800
0032
Spurious interrupt 1
Together this looks like an interrupt issue. What do you see
if you "cat /proc/interrupts"?
Regards
Greg
Post by Ashish Phogat
Post by Ashish Phogat
uclinux simply hangs there. I found that there is a large amount
of people who are getting the same problem in past couple of years.
But I did not get any solution for the problem.
Post by Ashish Phogat
Please let me know whether this problem still exists in uclinux
source code for M5272C3. where I will find the solution for that?
Post by Ashish Phogat
fec.c: Probe number 1 with 0x0000
eth0: FEC ENET Version 0.2, 00:e0:0c:bc:e5:60
Thanks and Appreciated for your help.
Thanks
Ashish Phogat
_______________________________________________
uClinux-dev mailing list
uClinux-dev at uclinux.org <mailto:uClinux-dev at uclinux.org>
http://mailman.uclinux.org/mailman/listinfo/uclinux-dev
This message was resent by uclinux-dev at uclinux.org
<mailto:uclinux-dev at uclinux.org>
Post by Ashish Phogat
http://mailman.uclinux.org/mailman/options/uclinux-dev
_______________________________________________
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--
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http://science-of-good-living.blogspot.com/
http://science-of-spirituality.blogspot.com/
http://sprituality-is-knowledge.blogspot.in/2011/09/stories-that-explain-knowledge.html
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Ashish Phogat
2013-03-28 11:57:37 UTC
Permalink
Hi Greg,
I had a look at all the patches made for M5272C3 in cvs.org for kernel
2.4.x in last couple of years. It seems all patches are included in my
distribution (uClinux-dist-20120401.tar.bz2). I don't have idea why this
error NETDEV WATCHDOG is still coming. I am running at 50Mhz clock
frequency. Is there any problem with frequency?


Thanks
Ashish Phogat
Post by Natarajan BLR
Post by Ashish Phogat
Hi Greg,
/> cat /proc/interrupts
66: 0 fec(MII)
72: 3393 ColdFire Timer
73: 1084 ColdFire UART
74: 0 ColdFire UART
77: 0 ColdFire USB (EP0)
78: 0 ColdFire USB (EP1)
79: 0 ColdFire USB (EP2)
80: 0 ColdFire USB (EP3)
81: 0 ColdFire USB (EP4)
82: 0 ColdFire USB (EP5)
83: 0 ColdFire USB (EP6)
84: 0 ColdFire USB (EP7)
86: 0 fec(RX)
87: 0 fec(TX)
88: 13 fec(OTHER)
89: 0 ColdFire QSPI
Thanks
Ashish phogat
Post by Greg Ungerer
Hi Ashish,
Post by Ashish Phogat
My Kernel is 2.4.34.5 and uClinux-dist is
uClinux-dist-20120401.tar.bz2.
Ok. I haven't run 2.4 kernels for a long time... but some comments
below.
Post by Ashish Phogat
Post by Ashish Phogat
/> NETDEV WATCHDOG: eth0: transmit timed out
eth0: transmit timed out.
Ring data dump: cur_tx 321100, dirty_tx 321100 cur_rx: 321000
tx: 16 buffers
00321100: 0000 0012 00000000
00321108: 0000 0816 00000000
00321110: 0000 001a 00000000
00321118: 0000 0c1e 00000000
00321120: 0000 0432 00000000
00321128: 0000 40a6 00000000
00321130: 0000 002a 00000000
00321138: 0000 002e 00000000
00321140: 0000 0032 00000000
00321148: 0000 0036 00000000
00321150: 0000 003a 00000000
rx: 32 buffers
00321000: 8000 0440 00320000
00321008: 8000 0c70 00320800
00321010: 8000 092b 0037f000
00321018: 8000 ff9a 0037f800
00321020: 8000 7fa2 0037e000
00321028: 8000 eda6 0037e800
00321030: 8000 ffa2 0037d000
00321038: 8000 ffa6 0037d800
00321040: 8000 ffb2 0037c000
00321048: 8000 ffb6 0037c800
0032
Spurious interrupt 1
Together this looks like an interrupt issue. What do you see
if you "cat /proc/interrupts"?
Regards
Greg
Post by Ashish Phogat
Post by Ashish Phogat
uclinux simply hangs there. I found that there is a large amount
of people who are getting the same problem in past couple of years.
But I did not get any solution for the problem.
Post by Ashish Phogat
Please let me know whether this problem still exists in uclinux
source code for M5272C3. where I will find the solution for that?
Post by Ashish Phogat
fec.c: Probe number 1 with 0x0000
eth0: FEC ENET Version 0.2, 00:e0:0c:bc:e5:60
Thanks and Appreciated for your help.
Thanks
Ashish Phogat
_______________________________________________
uClinux-dev mailing list
uClinux-dev at uclinux.org <mailto:uClinux-dev at uclinux.org>
http://mailman.uclinux.org/mailman/listinfo/uclinux-dev
This message was resent by uclinux-dev at uclinux.org
<mailto:uclinux-dev at uclinux.org>
Post by Ashish Phogat
http://mailman.uclinux.org/mailman/options/uclinux-dev
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--
N Natarajan
http://science-of-good-living.blogspot.com/
http://science-of-spirituality.blogspot.com/
http://sprituality-is-knowledge.blogspot.in/2011/09/stories-that-explain-knowledge.html
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Greg Ungerer
2013-03-28 12:22:51 UTC
Permalink
Hi Ashish,
Post by Ashish Phogat
I had a look at all the patches made for M5272C3 in cvs.org
<http://cvs.org> for kernel 2.4.x in last couple of years. It seems all
patches are included in my distribution (uClinux-dist-20120401.tar.bz2).
I don't have idea why this error NETDEV WATCHDOG is still coming. I am
running at 50Mhz clock frequency. Is there any problem with frequency?
No, I don't think that will cause you any problems.
Post by Ashish Phogat
From the interrupt count it doesn't look like you are getting any TX
interrupts from the FEC. This will cause the NETDEV WATCHDOG to
eventually timeout and you get the kernel trace you see.

You are getting "other" interrupts from the FEC - I think you should
add some trace and see what those are. Maybe they will give some
clues.

Regards
Greg
Post by Ashish Phogat
On Wed, Mar 27, 2013 at 6:24 PM, Ashish Phogat
Hi Greg,
/> cat /proc/interrupts
66: 0 fec(MII)
72: 3393 ColdFire Timer
73: 1084 ColdFire UART
74: 0 ColdFire UART
77: 0 ColdFire USB (EP0)
78: 0 ColdFire USB (EP1)
79: 0 ColdFire USB (EP2)
80: 0 ColdFire USB (EP3)
81: 0 ColdFire USB (EP4)
82: 0 ColdFire USB (EP5)
83: 0 ColdFire USB (EP6)
84: 0 ColdFire USB (EP7)
86: 0 fec(RX)
87: 0 fec(TX)
88: 13 fec(OTHER)
89: 0 ColdFire QSPI
Thanks
Ashish phogat
On Wed, Mar 27, 2013 at 7:55 AM, Greg Ungerer
Hi Ashish,
Post by Ashish Phogat
My Kernel is 2.4.34.5 and uClinux-dist is
uClinux-dist-20120401.tar.bz2.
Ok. I haven't run 2.4 kernels for a long time... but some comments
below.
Post by Ashish Phogat
Post by Ashish Phogat
/> NETDEV WATCHDOG: eth0: transmit timed out
eth0: transmit timed out.
Ring data dump: cur_tx 321100, dirty_tx 321100
cur_rx: 321000
Post by Ashish Phogat
Post by Ashish Phogat
tx: 16 buffers
00321100: 0000 0012 00000000
00321108: 0000 0816 00000000
00321110: 0000 001a 00000000
00321118: 0000 0c1e 00000000
00321120: 0000 0432 00000000
00321128: 0000 40a6 00000000
00321130: 0000 002a 00000000
00321138: 0000 002e 00000000
00321140: 0000 0032 00000000
00321148: 0000 0036 00000000
00321150: 0000 003a 00000000
rx: 32 buffers
00321000: 8000 0440 00320000
00321008: 8000 0c70 00320800
00321010: 8000 092b 0037f000
00321018: 8000 ff9a 0037f800
00321020: 8000 7fa2 0037e000
00321028: 8000 eda6 0037e800
00321030: 8000 ffa2 0037d000
00321038: 8000 ffa6 0037d800
00321040: 8000 ffb2 0037c000
00321048: 8000 ffb6 0037c800
0032
Spurious interrupt 1
Together this looks like an interrupt issue. What do you see
if you "cat /proc/interrupts"?
Regards
Greg
Post by Ashish Phogat
Post by Ashish Phogat
uclinux simply hangs there. I found that there is a
large amount
Post by Ashish Phogat
of people who are getting the same problem in past
couple of years.
Post by Ashish Phogat
But I did not get any solution for the problem.
Post by Ashish Phogat
Please let me know whether this problem still exists
in uclinux
Post by Ashish Phogat
source code for M5272C3. where I will find the
solution for that?
Post by Ashish Phogat
Post by Ashish Phogat
fec.c: Probe number 1 with 0x0000
eth0: FEC ENET Version 0.2, 00:e0:0c:bc:e5:60
Thanks and Appreciated for your help.
Thanks
Ashish Phogat
_______________________________________________
uClinux-dev mailing list
uClinux-dev at uclinux.org
<mailto:uClinux-dev at uclinux.org>
<mailto:uClinux-dev at uclinux.org
<mailto:uClinux-dev at uclinux.org>>
Post by Ashish Phogat
Post by Ashish Phogat
http://mailman.uclinux.org/mailman/listinfo/uclinux-dev
This message was resent by uclinux-dev at uclinux.org
<mailto:uclinux-dev at uclinux.org>
Post by Ashish Phogat
<mailto:uclinux-dev at uclinux.org
<mailto:uclinux-dev at uclinux.org>>
Post by Ashish Phogat
Post by Ashish Phogat
http://mailman.uclinux.org/mailman/options/uclinux-dev
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Post by Ashish Phogat
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Ashish Phogat
2013-03-28 17:15:31 UTC
Permalink
Hi Greg,
I am sorry I am new to linux...I donot know how to add traces. Could you
please help me with that?

Meanwhile I am trying to add few utilities in my uclinux such as
mii-tool-fec, traceroute or ethtool.

Lets see how much I am able to debug or get more information.

Thanks for your help.

Thanks
Ashish Phogat
Post by Greg Ungerer
Hi Ashish,
Post by Ashish Phogat
I had a look at all the patches made for M5272C3 in cvs.org
<http://cvs.org> for kernel 2.4.x in last couple of years. It seems all
patches are included in my distribution (uClinux-dist-20120401.tar.bz2).
I don't have idea why this error NETDEV WATCHDOG is still coming. I am
running at 50Mhz clock frequency. Is there any problem with frequency?
No, I don't think that will cause you any problems.
From the interrupt count it doesn't look like you are getting any TX
interrupts from the FEC. This will cause the NETDEV WATCHDOG to
eventually timeout and you get the kernel trace you see.
You are getting "other" interrupts from the FEC - I think you should
add some trace and see what those are. Maybe they will give some
clues.
Regards
Greg
Post by Ashish Phogat
On Wed, Mar 27, 2013 at 6:24 PM, Ashish Phogat
Hi Greg,
/> cat /proc/interrupts
66: 0 fec(MII)
72: 3393 ColdFire Timer
73: 1084 ColdFire UART
74: 0 ColdFire UART
77: 0 ColdFire USB (EP0)
78: 0 ColdFire USB (EP1)
79: 0 ColdFire USB (EP2)
80: 0 ColdFire USB (EP3)
81: 0 ColdFire USB (EP4)
82: 0 ColdFire USB (EP5)
83: 0 ColdFire USB (EP6)
84: 0 ColdFire USB (EP7)
86: 0 fec(RX)
87: 0 fec(TX)
88: 13 fec(OTHER)
89: 0 ColdFire QSPI
Thanks
Ashish phogat
On Wed, Mar 27, 2013 at 7:55 AM, Greg Ungerer
<gregungerer00 at gmail.com <mailto:gregungerer00 at gmail.com>>
Hi Ashish,
Post by Ashish Phogat
My Kernel is 2.4.34.5 and uClinux-dist is
uClinux-dist-20120401.tar.bz2.
Ok. I haven't run 2.4 kernels for a long time... but some
comments
below.
Post by Ashish Phogat
Post by Ashish Phogat
/> NETDEV WATCHDOG: eth0: transmit timed out
eth0: transmit timed out.
Ring data dump: cur_tx 321100, dirty_tx 321100
cur_rx: 321000
Post by Ashish Phogat
Post by Ashish Phogat
tx: 16 buffers
00321100: 0000 0012 00000000
00321108: 0000 0816 00000000
00321110: 0000 001a 00000000
00321118: 0000 0c1e 00000000
00321120: 0000 0432 00000000
00321128: 0000 40a6 00000000
00321130: 0000 002a 00000000
00321138: 0000 002e 00000000
00321140: 0000 0032 00000000
00321148: 0000 0036 00000000
00321150: 0000 003a 00000000
rx: 32 buffers
00321000: 8000 0440 00320000
00321008: 8000 0c70 00320800
00321010: 8000 092b 0037f000
00321018: 8000 ff9a 0037f800
00321020: 8000 7fa2 0037e000
00321028: 8000 eda6 0037e800
00321030: 8000 ffa2 0037d000
00321038: 8000 ffa6 0037d800
00321040: 8000 ffb2 0037c000
00321048: 8000 ffb6 0037c800
0032
Spurious interrupt 1
Together this looks like an interrupt issue. What do you see
if you "cat /proc/interrupts"?
Regards
Greg
Post by Ashish Phogat
Post by Ashish Phogat
uclinux simply hangs there. I found that there is a
large amount
Post by Ashish Phogat
of people who are getting the same problem in past
couple of years.
Post by Ashish Phogat
But I did not get any solution for the problem.
Post by Ashish Phogat
Please let me know whether this problem still exists
in uclinux
Post by Ashish Phogat
source code for M5272C3. where I will find the
solution for that?
Post by Ashish Phogat
Post by Ashish Phogat
fec.c: Probe number 1 with 0x0000
eth0: FEC ENET Version 0.2, 00:e0:0c:bc:e5:60
Thanks and Appreciated for your help.
Thanks
Ashish Phogat
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Post by Ashish Phogat
Post by Ashish Phogat
Post by Ashish Phogat
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Post by Ashish Phogat
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Post by Ashish Phogat
Post by Ashish Phogat
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Ashish Phogat
2013-03-29 14:58:55 UTC
Permalink
Hi greg,
I debug fec.c file in linux 2.4.x/drivers/net......................Here are
my observations:


When uclinux boots:
dhcp daemon is intiated from rc file:

"*dhcpcd -p -a eth0 &*"

which tries to open the ethernet port by calling:

*"fec_enet_open*" function.

In that function I found that

*"fep->link*" variable is never initiated to *1*

Based on my PHY as "*AM79C874" *and config options shown below:

#if defined(CONFIG_M5272)
#define M5272_PHY_STAT_INT
# if defined(CONFIG_BOARD_UC5272)
#define PHY_INT MCF_INT_INT6
#define PHY_START_ADDR 1
#define ICR_PHY_REG (MCF_MBAR + MCFSIM_ICR4)
#define ICR_PHY_MASK_IPL 0x77777777
# if defined(CONFIG_UC5272_PHY_INT)
#define ICR_PHY_MASK 0xFF0FFFFF
#define ICR_PHY_SETUP 0x00d00000
#define ICR_MASK_IP 0x00800000
# else /* CONFIG_UC5272_PHY_INT */
#undef M5272_PHY_STAT_INT
#define ICR_PHY_MASK 0xFFFFFFFF
#define ICR_PHY_SETUP 0x00000000
#define ICR_MASK_IP 0x00000000
# endif /* CONFIG_UC5272_PHY_INT */
# else /* CONFIG_BOARD_UC5272 */
# if defined(CONFIG_FEC_KS8995M)
#undef M5272_PHY_STAT_INT
#define PHY_START_ADDR 5
#define ICR_PHY_MASK 0xFFFFFFFF
#define ICR_PHY_SETUP 0x00000000
#define ICR_MASK_IP 0x00000000
# else /*CONFIG_FEC_KS8995M */
// These are values for ColdFire 5272 SIM
#define PHY_INT MCF_INT_INT2
#define PHY_START_ADDR 0
#define ICR_PHY_REG (MCF_MBAR + MCFSIM_ICR1)
#define ICR_PHY_MASK_IPL 0x77777777
#define ICR_PHY_MASK 0x70777777
#define ICR_MASK_IP 0x08000000
#define ICR_PHY_SETUP 0x0d000000
# endif /* CONFIG_FEC_KS8995M */
# endif /* CONFIG_BOARD_UC5272 */
#endif /* CONFIG_M5272 */
*

fep->link *is blocked by *
*
#if !defined( M5272_PHY_STAT_INT)

fep->link = 1; /* Always assume we are connected (no interrupt
to turn on/off link) */

#endif

It seems my link is never up.

Next Step I rebuild uclinux by initializing fep->link to 1 always
irrespective of any configuration.

But this time uclinux keep on starting transimission forever by calling

*"fec_enet_start_xmit" *function*
*

So I simply kill my "*dhcpcd -p -a eth0 &*" process

and up my ethernet connection by calling

*ifconfig eth0 192.168.0.5 netmask 255.255.255.0 up*

after that everything works fine.


I am able to ping my Linux machine.

I don't know whether some configuration is missed for AM79C874. I am not
sure how link is supposed to be up. Whether

I should assume to be up always or I have to wait for some interrupt/event
which will make my link up.

If you have anything on your side please let me know.


Thanks

Ashish Phogat
Post by Ashish Phogat
Hi Greg,
I am sorry I am new to linux...I donot know how to add traces. Could you
please help me with that?
Meanwhile I am trying to add few utilities in my uclinux such as
mii-tool-fec, traceroute or ethtool.
Lets see how much I am able to debug or get more information.
Thanks for your help.
Thanks
Ashish Phogat
Post by Greg Ungerer
Hi Ashish,
Post by Ashish Phogat
I had a look at all the patches made for M5272C3 in cvs.org
<http://cvs.org> for kernel 2.4.x in last couple of years. It seems all
patches are included in my distribution (uClinux-dist-20120401.tar.bz2).
I don't have idea why this error NETDEV WATCHDOG is still coming. I am
running at 50Mhz clock frequency. Is there any problem with frequency?
No, I don't think that will cause you any problems.
From the interrupt count it doesn't look like you are getting any TX
interrupts from the FEC. This will cause the NETDEV WATCHDOG to
eventually timeout and you get the kernel trace you see.
You are getting "other" interrupts from the FEC - I think you should
add some trace and see what those are. Maybe they will give some
clues.
Regards
Greg
Post by Ashish Phogat
On Wed, Mar 27, 2013 at 6:24 PM, Ashish Phogat
Hi Greg,
/> cat /proc/interrupts
66: 0 fec(MII)
72: 3393 ColdFire Timer
73: 1084 ColdFire UART
74: 0 ColdFire UART
77: 0 ColdFire USB (EP0)
78: 0 ColdFire USB (EP1)
79: 0 ColdFire USB (EP2)
80: 0 ColdFire USB (EP3)
81: 0 ColdFire USB (EP4)
82: 0 ColdFire USB (EP5)
83: 0 ColdFire USB (EP6)
84: 0 ColdFire USB (EP7)
86: 0 fec(RX)
87: 0 fec(TX)
88: 13 fec(OTHER)
89: 0 ColdFire QSPI
Thanks
Ashish phogat
On Wed, Mar 27, 2013 at 7:55 AM, Greg Ungerer
<gregungerer00 at gmail.com <mailto:gregungerer00 at gmail.com>>
Hi Ashish,
Post by Ashish Phogat
My Kernel is 2.4.34.5 and uClinux-dist is
uClinux-dist-20120401.tar.bz2.
Ok. I haven't run 2.4 kernels for a long time... but some
comments
below.
Post by Ashish Phogat
Post by Ashish Phogat
/> NETDEV WATCHDOG: eth0: transmit timed out
eth0: transmit timed out.
Ring data dump: cur_tx 321100, dirty_tx 321100
cur_rx: 321000
Post by Ashish Phogat
Post by Ashish Phogat
tx: 16 buffers
00321100: 0000 0012 00000000
00321108: 0000 0816 00000000
00321110: 0000 001a 00000000
00321118: 0000 0c1e 00000000
00321120: 0000 0432 00000000
00321128: 0000 40a6 00000000
00321130: 0000 002a 00000000
00321138: 0000 002e 00000000
00321140: 0000 0032 00000000
00321148: 0000 0036 00000000
00321150: 0000 003a 00000000
rx: 32 buffers
00321000: 8000 0440 00320000
00321008: 8000 0c70 00320800
00321010: 8000 092b 0037f000
00321018: 8000 ff9a 0037f800
00321020: 8000 7fa2 0037e000
00321028: 8000 eda6 0037e800
00321030: 8000 ffa2 0037d000
00321038: 8000 ffa6 0037d800
00321040: 8000 ffb2 0037c000
00321048: 8000 ffb6 0037c800
0032
Spurious interrupt 1
Together this looks like an interrupt issue. What do you see
if you "cat /proc/interrupts"?
Regards
Greg
Post by Ashish Phogat
Post by Ashish Phogat
uclinux simply hangs there. I found that there is a
large amount
Post by Ashish Phogat
of people who are getting the same problem in past
couple of years.
Post by Ashish Phogat
But I did not get any solution for the problem.
Post by Ashish Phogat
Please let me know whether this problem still exists
in uclinux
Post by Ashish Phogat
source code for M5272C3. where I will find the
solution for that?
Post by Ashish Phogat
Post by Ashish Phogat
fec.c: Probe number 1 with 0x0000
eth0: FEC ENET Version 0.2, 00:e0:0c:bc:e5:60
Thanks and Appreciated for your help.
Thanks
Ashish Phogat
_______________________________________________
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<mailto:uClinux-dev at uclinux.org>
<mailto:uClinux-dev at uclinux.org
<mailto:uClinux-dev at uclinux.org>>
http://mailman.uclinux.org/mailman/listinfo/uclinux-dev
Post by Ashish Phogat
Post by Ashish Phogat
Post by Ashish Phogat
This message was resent by uclinux-dev at uclinux.org
<mailto:uclinux-dev at uclinux.org>
Post by Ashish Phogat
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<mailto:uclinux-dev at uclinux.org>>
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Post by Ashish Phogat
Post by Ashish Phogat
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Post by Ashish Phogat
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Greg Ungerer
2013-04-02 06:41:20 UTC
Permalink
Hi Ashish,
Post by Ashish Phogat
Hi greg,
"*dhcpcd -p -a eth0 &*"
*"fec_enet_open*" function.
In that function I found that
*"fep->link*" variable is never initiated to *1*
#if defined(CONFIG_M5272)
#define M5272_PHY_STAT_INT
# if defined(CONFIG_BOARD_UC5272)
#define PHY_INT MCF_INT_INT6
#define PHY_START_ADDR 1
#define ICR_PHY_REG (MCF_MBAR + MCFSIM_ICR4)
#define ICR_PHY_MASK_IPL 0x77777777
# if defined(CONFIG_UC5272_PHY_INT)
#define ICR_PHY_MASK 0xFF0FFFFF
#define ICR_PHY_SETUP 0x00d00000
#define ICR_MASK_IP 0x00800000
# else /* CONFIG_UC5272_PHY_INT */
#undef M5272_PHY_STAT_INT
#define ICR_PHY_MASK 0xFFFFFFFF
#define ICR_PHY_SETUP 0x00000000
#define ICR_MASK_IP 0x00000000
# endif /* CONFIG_UC5272_PHY_INT */
# else /* CONFIG_BOARD_UC5272 */
# if defined(CONFIG_FEC_KS8995M)
#undef M5272_PHY_STAT_INT
#define PHY_START_ADDR 5
#define ICR_PHY_MASK 0xFFFFFFFF
#define ICR_PHY_SETUP 0x00000000
#define ICR_MASK_IP 0x00000000
# else /*CONFIG_FEC_KS8995M */
// These are values for ColdFire 5272 SIM
#define PHY_INT MCF_INT_INT2
#define PHY_START_ADDR 0
#define ICR_PHY_REG (MCF_MBAR + MCFSIM_ICR1)
#define ICR_PHY_MASK_IPL 0x77777777
#define ICR_PHY_MASK 0x70777777
#define ICR_MASK_IP 0x08000000
#define ICR_PHY_SETUP 0x0d000000
# endif /* CONFIG_FEC_KS8995M */
# endif /* CONFIG_BOARD_UC5272 */
#endif /* CONFIG_M5272 */
I haven't looked at the M5272C3 for quite some time, so I don't recall
if it had an interrupt from the phy or not. Many boards do, as you can
see from the above.
Post by Ashish Phogat
fep->link *is blocked by *
*
#if !defined( M5272_PHY_STAT_INT)
fep->link = 1; /* Always assume we are connected (no interrupt
to turn on/off link) */
#endif
It seems my link is never up.
Next Step I rebuild uclinux by initializing fep->link to 1 always irrespective of any configuration.
But this time uclinux keep on starting transimission forever by calling
*"fec_enet_start_xmit" *function*
*
So I simply kill my "*dhcpcd -p -a eth0 &*" process
and up my ethernet connection by calling
*ifconfig eth0 192.168.0.5 netmask 255.255.255.0 up*
after that everything works fine.
I am able to ping my Linux machine.
I don't know whether some configuration is missed for AM79C874. I am not sure how link is supposed to be up. Whether
I should assume to be up always or I have to wait for some interrupt/event which will make my link up.
If you have anything on your side please let me know.
If you can determine if your board has a phy interrupt that would be good.
Based on that you can fix the code to correctly interrupt from the phy.
If your board doesn't then it should be fixed to 1, as your work around
does now.

Regards
Greg
Post by Ashish Phogat
Thanks
Ashish Phogat
Hi Greg,
I am sorry I am new to linux...I donot know how to add traces. Could you please help me with that?
Meanwhile I am trying to add few utilities in my uclinux such as mii-tool-fec, traceroute or ethtool.
Lets see how much I am able to debug or get more information.
Thanks for your help.
Thanks
Ashish Phogat
Hi Ashish,
I had a look at all the patches made for M5272C3 in cvs.org <http://cvs.org>
<http://cvs.org> for kernel 2.4.x in last couple of years. It seems all
patches are included in my distribution (uClinux-dist-20120401.tar.bz2).
I don't have idea why this error NETDEV WATCHDOG is still coming. I am
running at 50Mhz clock frequency. Is there any problem with frequency?
No, I don't think that will cause you any problems.
From the interrupt count it doesn't look like you are getting any TX
interrupts from the FEC. This will cause the NETDEV WATCHDOG to
eventually timeout and you get the kernel trace you see.
You are getting "other" interrupts from the FEC - I think you should
add some trace and see what those are. Maybe they will give some
clues.
Regards
Greg
On Wed, Mar 27, 2013 at 6:24 PM, Ashish Phogat
Hi Greg,
/> cat /proc/interrupts
66: 0 fec(MII)
72: 3393 ColdFire Timer
73: 1084 ColdFire UART
74: 0 ColdFire UART
77: 0 ColdFire USB (EP0)
78: 0 ColdFire USB (EP1)
79: 0 ColdFire USB (EP2)
80: 0 ColdFire USB (EP3)
81: 0 ColdFire USB (EP4)
82: 0 ColdFire USB (EP5)
83: 0 ColdFire USB (EP6)
84: 0 ColdFire USB (EP7)
86: 0 fec(RX)
87: 0 fec(TX)
88: 13 fec(OTHER)
89: 0 ColdFire QSPI
Thanks
Ashish phogat
On Wed, Mar 27, 2013 at 7:55 AM, Greg Ungerer
Hi Ashish,
Post by Ashish Phogat
My Kernel is 2.4.34.5 and uClinux-dist is
uClinux-dist-20120401.tar.bz2.
Ok. I haven't run 2.4 kernels for a long time... but some
comments
below.
Post by Ashish Phogat
Post by Ashish Phogat
/> NETDEV WATCHDOG: eth0: transmit timed out
eth0: transmit timed out.
Ring data dump: cur_tx 321100, dirty_tx 321100
cur_rx: 321000
Post by Ashish Phogat
Post by Ashish Phogat
tx: 16 buffers
00321100: 0000 0012 00000000
00321108: 0000 0816 00000000
00321110: 0000 001a 00000000
00321118: 0000 0c1e 00000000
00321120: 0000 0432 00000000
00321128: 0000 40a6 00000000
00321130: 0000 002a 00000000
00321138: 0000 002e 00000000
00321140: 0000 0032 00000000
00321148: 0000 0036 00000000
00321150: 0000 003a 00000000
rx: 32 buffers
00321000: 8000 0440 00320000
00321008: 8000 0c70 00320800
00321010: 8000 092b 0037f000
00321018: 8000 ff9a 0037f800
00321020: 8000 7fa2 0037e000
00321028: 8000 eda6 0037e800
00321030: 8000 ffa2 0037d000
00321038: 8000 ffa6 0037d800
00321040: 8000 ffb2 0037c000
00321048: 8000 ffb6 0037c800
0032
Spurious interrupt 1
Together this looks like an interrupt issue. What do you see
if you "cat /proc/interrupts"?
Regards
Greg
Post by Ashish Phogat
Post by Ashish Phogat
uclinux simply hangs there. I found that there is a
large amount
Post by Ashish Phogat
of people who are getting the same problem in past
couple of years.
Post by Ashish Phogat
But I did not get any solution for the problem.
Post by Ashish Phogat
Please let me know whether this problem still exists
in uclinux
Post by Ashish Phogat
source code for M5272C3. where I will find the
solution for that?
Post by Ashish Phogat
Post by Ashish Phogat
fec.c: Probe number 1 with 0x0000
eth0: FEC ENET Version 0.2, 00:e0:0c:bc:e5:60
Thanks and Appreciated for your help.
Thanks
Ashish Phogat
_______________________________________________
uClinux-dev mailing list
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