No Ethernet connection under uClinux with MMU on 3c120 dev board

Altera_Forum · ‎01-18-2012

Hello,

I have problems to get telnet, ftp or http working on uClinux. I used the hardware example from the Altera Wiki for the 3c120 nios2_linux_3c120_125mhz_11.0sp1 with MMU.I followed the instruction on the wiki "Install Nios2 linux" and "Uclinux". I can compile Linux and dowload it on my board and boot it.

Boot screen:

Linux/Nios II-MMU

init_bootmem_node(?,0x10582, 0x10000, 0x18000)

free_bootmem(0x10582000, 0x7a7e000)

reserve_bootmem(0x10582000, 0x1000)

Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512

Kernel command line:

PID hash table entries: 512 (order: -1, 2048 bytes)

Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)

Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)

We have 98304 pages of RAM

Memory available: 124268k/5639k RAM, 0k/0k ROM (2037k kernel code, 3602k data)

Hierarchical RCU implementation.

NR_IRQS:32

Calibrating delay loop... 62.25 BogoMIPS (lpj=311296)

Mount-cache hash table entries: 512

NET: Registered protocol family 16

init_BSP(): registering device resources

bio: create slab <bio-0> at 0

Switching to clocksource timer

NET: Registered protocol family 2

IP route cache hash table entries: 1024 (order: 0, 4096 bytes)

TCP established hash table entries: 4096 (order: 3, 32768 bytes)

TCP bind hash table entries: 4096 (order: 2, 16384 bytes)

TCP: Hash tables configured (established 4096 bind 4096)

TCP reno registered

UDP hash table entries: 256 (order: 0, 4096 bytes)

UDP-Lite hash table entries: 256 (order: 0, 4096 bytes)

NET: Registered protocol family 1

RPC: Registered udp transport module.

RPC: Registered tcp transport module.

RPC: Registered tcp NFSv4.1 backchannel transport module.

msgmni has been set to 242

Block layer SCSI generic (bsg) driver version 0.4 loaded (major 254)

io scheduler noop registered

io scheduler deadline registered

io scheduler cfq registered (default)

ttyJ0 at MMIO 0x8004d50 (irq = 1) is a Altera JTAG UART

console [ttyJ0] enabled, bootconsole disabled

ttyS0 at MMIO 0x8004c80 (irq = 10) is a Altera UART

physmap platform flash device: 04000000 at 00000000

physmap-flash.0: Found 1 x16 devices at 0x0 in 16-bit bank

Amd/Fujitsu Extended Query Table at 0x0040

physmap-flash.0: CFI does not contain boot bank location. Assuming top.

number of CFI chips: 1

RedBoot partition parsing not available

Using physmap partition information

Creating 9 MTD partitions on "physmap-flash.0":

0x000000000000-0x000002800000 : "userspace"

0x000002800000-0x000002900000 : "U-Boot"

0x000002900000-0x000002d00000 : "uImage1"

0x000002d00000-0x000003100000 : "uImage2"

0x000003100000-0x000003500000 : "uImage3"

0x000003500000-0x000003880000 : "DEFAULT_MMU"

0x000003880000-0x000003c00000 : "MAXIMUM_MMU"

0x000003c00000-0x000003f80000 : "USER_IMAGE"

0x000003f80000-0x000003fa0000 : "options-bits"

Altera TSE MII Bus: probed

Found PHY with ID=0x1410cc2 at address=0x12

Altera Triple Speed MAC IP Driver(v8.0) developed by SLS,August-2008

mice: PS/2 mouse device common for all mice

TCP cubic registered

NET: Registered protocol family 17

Freeing unused kernel memory: 3060k freed (0xd01ff000 - 0xd04fb000)

Welcome to

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| |_| | |__| || | | | | |_| |/

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For further information check:

BusyBox v1.16.2 (2011-12-15 13:05:05 CET) hush - the humble shell

Enter 'help' for a list of built-in commands.

i configure the ethernet controller:

root:/> ifconfig eth0 192.168.119.21

root:/> ifconfig

eth0 Link encap:Ethernet HWaddr 00:70:ED:11:12:12

inet addr:192.168.119.21 Bcast:192.168.119.255 Mask:255.255.255.0

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

RX packets:460 errors:459 dropped:1 overruns:0 frame:0

TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:46 (46.0 TX bytes:0 (0.0

Base address:0x4000

lo Link encap:Local Loopback

inet addr:127.0.0.1 Mask:255.0.0.0

UP LOOPBACK RUNNING MTU:16436 Metric:1

RX packets:0 errors:0 dropped:0 overruns:0 frame:0

TX packets:0 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:0

RX bytes:0 (0.0 TX bytes:0 (0.0

i can also ping out and into the board

root:/> ping -c3 192.168.119.20

PING 192.168.119.20 (192.168.119.20): 56 data bytes

64 bytes from 192.168.119.20: seq=0 ttl=128 time=1010.926 ms

64 bytes from 192.168.119.20: seq=1 ttl=128 time=1.910 ms

64 bytes from 192.168.119.20: seq=2 ttl=128 time=0.553 ms

--- 192.168.119.20 ping statistics ---

3 packets transmitted, 3 packets received, 0% packet loss

round-trip min/avg/max = 0.553/337.796/1010.926 ms

root:/> netstat -a

Active Internet connections (servers and established)

Proto Recv-Q Send-Q Local Address Foreign Address State

tcp 0 0 (null):ftp (null):* LISTEN

tcp 0 0 (null):telnet (null):* LISTEN

Active UNIX domain sockets (servers and established)

Proto RefCnt Flags Type State I-Node Path

but if i want to connect per telnet or ftp. its always connection timeout. and if i run ifconfig again, it seems that the board gets the packages but drops it.

root:/> ifconfig

eth0 Link encap:Ethernet HWaddr 00:70:ED:11:12:12

inet addr:192.168.119.21 Bcast:192.168.119.255 Mask:255.255.255.0

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

RX packets:718 errors:459 dropped:231 overruns:0 frame:0

TX packets:5 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:13022 (12.7 Ki TX bytes:344 (344.0

Base address:0x4000

lo Link encap:Local Loopback

inet addr:127.0.0.1 Mask:255.0.0.0

UP LOOPBACK RUNNING MTU:16436 Metric:1

RX packets:56 errors:0 dropped:0 overruns:0 frame:0

TX packets:56 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:0

RX bytes:4480 (4.3 Ki TX bytes:4480 (4.3 Ki

i can also start the boa with

root:/> /bin/boa -f /etc/boa.conf &

[9] 711 /bin/boa -f /etc/boa.conf

[8] Done boa -fd bin/boa.conf

root:/> [01/Jan/2007:00:06:02 +0000] boa: server version Boa/0.94.14rc21

[01/Jan/2007:00:06:02 +0000] boa: server built Dec 15 2011 at 13:05:21.

[01/Jan/2007:00:06:02 +0000] boa: starting server pid=712, port 80

root:/> netstat -a

Active Internet connections (servers and established)

Proto Recv-Q Send-Q Local Address Foreign Address State

tcp 0 0 (null):http (null):* LISTEN

tcp 0 0 (null):ftp (null):* LISTEN

tcp 0 0 (null):telnet (null):* LISTEN

Active UNIX domain sockets (servers and established)

Proto RefCnt Flags Type State I-Node Path

but cant connect either.

Has anyone an idea what i have done wrong or how i can fix it? Im new to FPGA's and im doing it for an university project.

Help would be appreciated!

Altera_Forum · ‎02-24-2012

Hi,

Have the same problem.. ping working in and out the 3c120 board but not the telnet ssh and ftp... most of the searches that discusses this is 2 years old and it should have been fix by now...

Have you got this working?..

Altera_Forum · ‎06-05-2012

Did you get it working?

If not, check the checksum routine. I had the same issue sometime back, the tcp checksum was wrong, so no tcp traffic could go through. ping works as it does not need checksum.