RE: Linux w/ML403 PLB TEMAC
From: Leonid <hidden>
Date: 2007-04-04 22:13:35
I have investigated little bit more. Receive is working actually, but =
transmit doesn't. What can it be?
-----Original Message-----
From: linuxppc-embedded-bounces+leonid=3Da-k-a.net@ozlabs.org =
[mailto:linuxppc-embedded-bounces+leonid=3Da-k-a.net@ozlabs.org] On =
Behalf Of Leonid
Sent: Wednesday, April 04, 2007 12:06 PM
To: Glenn.G.Hart@us.westinghouse.com; linuxppc-embedded@ozlabs.org
Subject: RE: Linux w/ML403 PLB TEMAC
I have precisely the same problem you have described:
[ 0.430515] XTemac: using FIFO direct interrupt driven mode.
[ 0.437461] eth%d: XTemac: No PHY detected. Assuming a PHY at =
address 0
[ 0.445295] eth0: Xilinx TEMAC #0 at 0x02000000 mapped to 0xC3000000, =
irq=3D0
[ 0.452256] eth0: XTemac id 1.0f, block id 5, type 8
[ 0.458665] tun: Universal TUN/TAP device driver, 1.6
[ 0.463712] tun: (C) 1999-2004 Max Krasnyansky [off-list ref]
[ 0.471106] mice: PS/2 mouse device common for all mice
[ 0.476339] TCP cubic registered
[ 0.479615] NET: Registered protocol family 1
[ 0.484032] NET: Registered protocol family 17
[ 0.992599] eth0: XTemac: Options: 0xb8f2
[ 12.955691] eth0: XTemac: Not able to set the speed to 1000 (status: =
0x0)
[ 22.928615] eth0: XTemac: Not able to set the speed to 100 (status: =
0x0)
[ 32.901449] eth0: XTemac: Not able to set the speed to 10 (status: =
0x0)
[ 32.907976] eth0: XTemac: could not negotiate speed
[ 33.921626] IP-Config: Complete:
[ 33.924635] device=3Deth0, addr=3D192.168.0.223, =
mask=3D255.255.255.0, gw=3D192.168.0.1,
[ 33.932418] host=3DLM200, domain=3D, nis-domain=3D(none),
[ 33.937715] bootserver=3D192.168.0.141, =
rootserver=3D192.168.0.141, rootpath=3D
[ 33.946230] Looking up port of RPC 100003/2 on 192.168.0.141
[ 34.916694] eth0: XTemac: PHY Link carrier lost.
My TEMAC core version is 3.00.a and low level code I'm using is working =
in u-boot without problems. I use Rick's adapter and also tried Ming's =
trick to set hardcoded speed value but with no success.
I suspect something is configured wrong - phys is not detected:
[ 0.437461] eth%d: XTemac: No PHY detected. Assuming a PHY at =
address 0
Leonid.
-----Original Message-----
From: linuxppc-embedded-bounces+leonid=3Da-k-a.net@ozlabs.org =
[mailto:linuxppc-embedded-bounces+leonid=3Da-k-a.net@ozlabs.org] On =
Behalf Of Glenn.G.Hart@us.westinghouse.com
Sent: Wednesday, February 14, 2007 6:48 AM
To: linuxppc-embedded@ozlabs.org
Subject: RE: Linux w/ML403 PLB TEMAC
Ming/Rick,
I tried setting the speed to 1000 as below, but it did not change the
result. I also tried Rick's new adapter.c with the same results. =
Changing
the hard_temac_v3_b to hard_temac_v3_a was the change I needed.
Unfortunately, the speed of the network is much slower now. I switched =
to
DMA and then changed the Linux drivers for the DMA & TEMAC v2 to v3.
I have my own program to test performance. It seems everything is so =
slow
it does not every complete to give me the statistics. My ping are also
slower. I used to be able to ping my computer and get 0.6-0.7 ms times.
With the DMA and TEMAC v3 I am now getting 1.8 ms times.
I am now not sure if it is my build or my PPC design. For the PPC =
design I
have a minimum PPC with OPB-RS232, PLB-DDR, and PLB-TEMAC. I use all =
the
defaults from BSB except I check use interrupt on the RS232 and TEMAC.
Any suggestions?
Thanks,
Glenn
=
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(Embedded "Ming Liu" [off-list ref]@ozlabs.org =
=20
image moved 02/12/2007 11:48 AM =
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to file: =
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pic04169.pcx) =
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=20
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Sent by:
=
linuxppc-embedded-bounces+glenn.g.hart=3Dus.westinghouse.com@ozlabs.org
To: Glenn.G.Hart@us.westinghouse.com
cc: linuxppc-embedded@ozlabs.org
Subject: RE: Linux w/ML403 PLB TEMAC
Security Level:? Internal
Dear Glenn,
3. The speed of the network was very poor. I wanted to implement DMA =
for
the TEMAC. I created a new PPC with BSB using DMA on the TEMAC. =
Kernel
recompilied without a problem, but upon starting the kernel I got:
In fact, the old cores of TEMAC(plb_temac 2.00 & hard_temac 1.00) also support DMA. But of course the 3.00 cores are prefered because of other improved features.
6. I am using busybox 1.2.1 which worked fine previously configuring =
the
network. Now when I execute ifconfig I get the following problem: [ 12.228721] eth0: XTemac: Options: 0xb8f2 [ 24.197749] eth0: XTemac: Not able to set the speed to 1000 (status: 0x148) [ 34.215593] eth0: XTemac: Not able to set the speed to 100 (status: 0x148) [ 44.232349] eth0: XTemac: Not able to set the speed to 10 (status: 0x148) [ 44.313727] eth0: XTemac: could not negotiate speed [ 44.372226] eth0: XTemac: Send Threshold =3D 16, Receive Threshold =
=3D 2
[ 44.448421] eth0: XTemac: Send Wait bound =3D 1, Receive Wait bound =
=3D 1
# [ 57.180152] eth0: XTemac: PHY Link carrier lost.
I also had such a problem before. To solve such a problem most quickly, = you can just specify a fixed speed (like 1000Mbps) in adapter.c file. In = this file, after the line of "/* Get current link speed */ (around L378) and "phylinkspeed =3D (RegValue & MARVELL_88E1111_LINKSPEED_MARK)>> MARVELL_88E1111_LINKSPEED_SHIFT;", I just add and specify the speed as "phylinkspeed =3D MARVELL_88E1111_LINKSPEED_1000M;" Of course with this method, the speed cannot be auto-negotiated any more. Another hints: I remember that there is another post from Rick on the updated "adapter.c" a few days ago. Maybe that could solve your problem. = I didn't try that before. So if you will try, pls let us know the result. = :) BR Ming _________________________________________________________________ =CF=ED=D3=C3=CA=C0=BD=E7=C9=CF=D7=EE=B4=F3=B5=C4=B5=E7=D7=D3=D3=CA=BC=FE=CF= =B5=CD=B3=A1=AA MSN Hotmail=A1=A3 http://www.hotmail.com _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded