OpenWrt Forum Archive

Topic: WRT54GS v4

The content of this topic has been archived on 6 May 2018. There are no obvious gaps in this topic, but there may still be some posts missing at the end.

Just got a WRT54GS which seems to be v4 (serial number on outside of box begins CGN60E...).

Enabling boot_wait via the serial port seems to go OK.

Is it safe to try to install a recent openwrt snapshot ??

----

CFE version 1.0.37 for BCM947XX (32bit,SP,LE)
Build Date: Tue Jun 28 16:38:04 CST 2005 (root@localhost.localdomain)
Copyright (C) 2000,2001,2002,2003 Broadcom Corporation.

Initializing Arena
Initializing Devices.

No DPN
et0: Broadcom BCM47xx 10/100 Mbps Ethernet Controller 3.90.37.0
CPU type 0x29008: 200MHz
Total memory: 16384 KBytes

Total memory used by CFE:  0x80300000 - 0x803A3620 (669216)
Initialized Data:          0x80339530 - 0x8033BC40 (10000)
BSS Area:                  0x8033BC40 - 0x8033D620 (6624)
Local Heap:                0x8033D620 - 0x803A1620 (409600)
Stack Area:                0x803A1620 - 0x803A3620 (8192)
Text (code) segment:       0x80300000 - 0x80339530 (234800)
Boot area (physical):      0x003A4000 - 0x003E4000
Relocation Factor:         I:00000000 - D:00000000

Boot version: v3.6
The boot is CFE

mac_init(): Find mac [00:14:BF:34:3A:C6] in location 0
Nothing...

eou_key_init(): Find key pair in location 0
The eou device id is same
The eou public key is same
The eou private key is same
Device eth0:  hwaddr 00-14-BF-34-3A-C6, ipaddr 192.168.1.1, mask 255.255.255.0
        gateway not set, nameserver not set
Reading :: Failed.: Timeout occured
Loader:raw Filesys:raw Dev:flash0.os File: Options:(null)
Loading: ...... 1601536 bytes read
Entry at 0x80001000
Closing network.
Starting program at 0x80001000
CPU revision is: 00029008
Primary instruction cache 16kb, linesize 16 bytes (2 ways)
Primary data cache 8kb, linesize 16 bytes (2 ways)
Linux version 2.4.20 (root@localhost.localdomain) (gcc version 3.2.3 with Broadcom modifications) #15 Tue Jun 28 16:36:21 CST 2005
Setting the PFC value as 0x15
Determined physical RAM map:
memory: 01000000 @ 00000000 (usable)
On node 0 totalpages: 4096
zone(0): 4096 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/mtdblock2 noinitrd console=ttyS0,115200
CPU: BCM5352 rev 0 at 200 MHz
Calibrating delay loop... 199.47 BogoMIPS
Memory: 14404k/16384k available (1370k kernel code, 1980k reserved, 112k data, 64k init, 0k highmem)
Dentry cache hash table entries: 2048 (order: 2, 16384 bytes)
Inode cache hash table entries: 1024 (order: 1, 8192 bytes)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 4096 (order: 2, 16384 bytes)
Checking for 'wait' instruction...  unavailable.
POSIX conformance testing by UNIFIX
PCI: no core
PCI: Fixing up bus 0
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
devfs: v1.12c (20020818) Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x1
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at 0xb8000300 (irq = 3) is a 16550A
ttyS01 at 0xb8000400 (irq = 0) is a 16550A
HDLC line discipline: version $Revision: 1.1.1.4 $, maxframe=4096
N_HDLC line discipline registered.
PPP generic driver version 2.4.2
Flash device: 0x400000 at 0x1c000000
Physically mapped flash: squashfs filesystem found at block 926
le32_to_cpu(trx->magic)=0x30524448 trx->magic=0x30524448
bcm947xx_parts[1].offset=0x0 trx->offsets[1]=0x1 off
off=0xe7af4 off1=0x400000 size=0x400000
(Not Found Lang Block)off=0xe7af4 off1=0x3a0000 size=0x400000
nvram: offset=0x3f0000 size=0x10000
Creating 5 MTD partitions on "Physically mapped flash":
0x00000000-0x00040000 : "pmon"
0x00040000-0x003a0000 : "linux"
0x000e7af4-0x003a0000 : "rootfs"
mtd: partition "rootfs" doesn't start on an erase block boundary -- force read-only
0x003a0000-0x003f0000 : "lang"
0x003f0000-0x00400000 : "nvram"
sflash: found no supported devices
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 1024 bind 2048)
Linux IP multicast router 0.06 plus PIM-SM
ip_conntrack version 2.1 (128 buckets, 1024 max) - 344 bytes per conntrack
ip_conntrack_pptp version 1.9 loaded
ip_nat_pptp version 1.5 loaded
ip_tables: (C) 2000-2002 Netfilter core team
ipt_time loading
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
NET4: Ethernet Bridge 008 for NET4.0
802.1Q VLAN Support v1.7 Ben Greear <greearb@candelatech.com>
All bugs added by David S. Miller <davem@redhat.com>
cramfs: wrong magic
VFS: Mounted root (squashfs filesystem) readonly.
Mounted devfs on /dev
Freeing unused kernel memory: 64k freed
SQUASHFS error: Can't find a SQUASHFS superblock on mtdblock(31,3)
ret = -1
www -> /www
mount: Inappropriate ioctl for device
modules[0]=et buf=[et ]
modules[1]=ctmisc buf=[et ctmisc ]
modules[2]=wl buf=[et ctmisc wl ]
Needed modules: et ctmisc wl
Using /lib/modules/2.4.20/kernel/drivers/net/et/et.o
Using /lib/modules/2.4.20/kernel/drivers/net/ctmisc/ctmisc.o
Using /lib/modules/2.4.20/kernel/drivers/net/wl/wl.o
Hit enter to continue...type = [get_mac]
get_data(): cmd=0x11 count=8 len=18
get_data(): Get MAC count is [1]
get_data(): MAC 0: [00:14:BF:34:3A:C6]
get_data(): done
type = [get_eou]
get_data(): cmd=0x13 count=5 len=522
get_data(): Get EOU count is [1]
get_data(): EOU 0: [LDF9UYWN3744561b66bc5c8ef1d11bd9c86261558a093a4bde0ae8490aced914062b960e394f3c8787e4cb959a0263a5ed905904b6210b6422afebe31ddcf8839cb3e0000cca759852ddea24e482e4202bc46967640e87185f765ce3b8e3e3bbe02f49ada056013fa788aac364c427cde8bba649ab8f3758d991d14c74b5d52fca4f60e1bbe857f6c3b3a119362d5eb142e817bc6eec2c9b8c8b7c2b8b25aeddae9431638fa70100013d1a963ed4ec675aeac8433809f387a922eed0ff228025e196c66848aa6a7f13bfb369ba2ae926b243ad660f8cf85824aa0fac961db375b19716892c4167752cf5d0816244d75833c3d5fa0db344c76b2613ab2e0e24ac678d867311]
get_data(): done
type = [get_sn]
get_data(): cmd=0x15 count=8 len=20
get_data(): Get SN count is [0]
get_data(): done
type = [get_flash_type]
get_flash_type(): cmd=0x17 count=0 len=0
Get FLASH TYPE is [Intel 28F320C3 2Mx16 BotB]
The boot is CFE
insmod: writemac.o: no module by that name found
rmmod: writemac: No such file or directory
killall: httpd: no process killed
name=[vlan0] lan_ifname=[br0]
=====> set br0 hwaddr to vlan0
name=[eth1] lan_ifname=[br0]
Write wireless mac successfully
br0: No child processes
name=[eth2] lan_ifname=[br0]
eth2: No such device
name=[eth3] lan_ifname=[br0]
eth3: No such device
lo: File exists
syslogd: 0: Unknown host
The boot is CFE
tftp server started
tftpd: standalone socket
[HTTPD Starting on /www]
br0 192.168.3.100  86400
info, udhcp server (v0.9.8) started
zebra disabled.
EOU: Generate hash of public key: 35 72 73 39 CD DA 72 DE EA E4 32 7C 94 31 4A 76 - E4 16 59 16

EOU: The EoU is already configured
No interface specified. Quitting...

SES_SUPPORT_NEW_BOARD=1
SES2: In brcm_ses_event_get(), event in = SES2: In brcm_ses_event_notify(), event = SES_EVTO_UNCONFIGURED!!!
SES2: In brcm_ses_event_get(), event in = SES_EVTI_NULL!!!
calling upnp_main
tallest:=====( wan_or_lan=wan )=====
tallest:=====( wan_or_lan=wan is wan !!)=====
Hit enter to continue...info, udhcp client (v0.9.8) started
No interface specified. Quitting...
Hit enter to continue...SES_EVTI_NULL!!!

----

What's the firmware version currently installed?

SysInfo.htm reports :

Vendor:LINKSYS
ModelName:WRT54GSV4
Firmware Version:v1.05.0 , Jun 28 2005
#:001
Boot Version:v3.6.4
CodePattern:W54s
Country:US

RF Status:enabled
RF Firmware Version:v1.05.0
RF Domain:US (channel 1~11)
RF Channel:6
RF SSID:T65

-----Dynamic Information
RF Mac Address:00:14:BF:34:3A:C8
LAN Mac Address:00:14:BF:34:3A:C6
WAN Mac Address:00:14:BF:34:3A:C7
Hardware Version:2.0
Device Serial No.:

Just as I suspected. Please wait with trying to flash OpenWrt until we at least have a firmware file that will work on your router for sure. I haven't seen this v1.05 firmware anywhere nor any mention of the WRT54GSv4 router on the Linksys website.
If you want to try it anyway, you should add JTAG to your router and make a backup of the currently installed firmware.

Pf. seems like the GS v4 has 4MB flash and 16MB RAM only hmm

any internal pics yet?

Hmm, seems like it has completely the same board that WRT54G v4 uses, with the same transceiver that was changed on WRT54G v5. IMHO two cases exist:
a.) this transceiver is shitty, and will be replaced soon on this board too, thus releasing a WRT54GS v5, or
b.) this transceiver was too expensive - or too good - for WRT54G v4 product line, and will become the only difference between the G and the GS line - as of the current features (4Mb flash, 16Mb memory), there is nothing else. smile

Now, can anybody tell a manufacturer and type of this transceiver?

-w-

Thanks for the pictures, do you mind if I use them on my website for some news and info?

Kaloz wrote:

Pf. seems like the GS v4 has 4MB flash and 16MB RAM only hmm

that looks like a step back into stoneage.

Good news! Linksys has released a source tarball for the WRT54GSv4 v1.05 stuff - I've looked through the kernel source and they didn't change it at all since WRT54GS v4.70, so I guess it's not that much different from the GS v3.
Now I have added some (hopefully working) firmware image patterns for that thing. You can get them here: http://downloads.openwrt.org/people/nbd/whiterussian/
So please test them whenever you feel like it smile

Good news! Linksys has released a source tarball for the WRT54GSv4 v1.05 stuff - I've looked through the kernel source and they didn't change it at all since WRT54GS v4.70, so I guess it's not that much different from the GS v3.

Do you have a link ??
I still don't see an official WRT54GSv4 v1.05 firmware on the linksys website (not that I plan to go back, but just in case... ;-)

Now I have added some (hopefully working) firmware image patterns for that thing. You can get them here: http://downloads.openwrt.org/people/nbd/whiterussian/
So please test them whenever you feel like it smile

Issue 1 : Direct ethernet connection between PC and WRT bootloader doesn't seem to work with a straight through cable.
A crossover cable does work though (and probably a hub or switch would work fine as well, but I didn't have one to hand).
No big problem, but I don't remember seeing it mentioned in the Wiki install notes.

Issue 2 : OpenWrt seems to get uart baud rate wrong...
Here's the uart output of the reflashing process:

...
Reading :: CODE Pattern is CORRECT!
upgrade_ver[v1.5.0] upgrade_ver[10500] 4712_ver[10000]
Done. 2229248 bytes read
fname=flash1.trx
CODE Pattern is correct! (W54s)
Programming...done. 2229216 bytes written
Loader:raw Filesys:raw Dev:flash0.os File: Options:(null)
Loading: .. 3704 bytes read
Entry at 0x80001000
Closing network.
Starting program at 0x80001000

<after this, I get garbage>

Looking at the Tx output of the router with a scope, it seems to have a baud rate of 125000 (ie 8.5% faster than expected for 115200).

But the good news... telnet connection (tested via ethernet) works !!

siig-ryan:~# telnet 192.168.3.10
Trying 192.168.3.10...
Connected to 192.168.3.10.
Escape character is '^]'.
 === IMPORTANT ============================
  Use 'passwd' to set your login password
  this will disable telnet and enable SSH
 ------------------------------------------


BusyBox v1.00 (2005.08.30-13:48+0000) Built-in shell (ash)
Enter 'help' for a list of built-in commands.

  _______                     ________        __
 |       |.-----.-----.-----.|  |  |  |.----.|  |_
 |   -   ||  _  |  -__|     ||  |  |  ||   _||   _|
 |_______||   __|_____|__|__||________||__|  |____|
          |__| W I R E L E S S   F R E E D O M
 WHITE RUSSIAN (CVS) -------------------------------
  * 2 oz Vodka   Mix the Vodka and Kahlua together
  * 1 oz Kahlua  over ice, then float the cream or
  * 1/2oz cream  milk on the top.
 ---------------------------------------------------
root@OpenWrt:/# ls -la
drwxr-xr-x    1 root     root            0 Aug 30  2005 .
drwxr-xr-x    1 root     root            0 Aug 30  2005 ..
drwxr-xr-x    1 root     root            0 Aug 30  2005 bin
drwxr-xr-x    1 root     root            0 Jan  1  1970 dev
drwxr-xr-x    1 root     root            0 Apr 30  2005 etc
drwxr-xr-x    1 root     root            0 Aug 30  2005 lib
dr-xr-xr-x   32 root     root            0 Jan  1 00:00 proc
drwxr-xr-x    1 root     root            0 Apr 20  2005 rom
drwxr-xr-x    1 root     root            0 Aug 30  2005 sbin
drwxrwxrwt    4 root     root          100 Jan  1 00:00 tmp
drwxr-xr-x    1 root     root            0 Aug 30  2005 usr
lrwxrwxrwx    1 root     root            4 Aug 30  2005 var -> /tmp
drwxr-xr-x    1 root     root            0 Feb  6  2005 www
root@OpenWrt:/# dmesg
CPU revision is: 00029008
Primary instruction cache 16kB, physically tagged, 2-way, linesize 16 bytes.
Primary data cache 8kB, 2-way, linesize 16 bytes.
Linux version 2.4.30 (nbd@ux-2y01) (gcc version 3.4.4) #1 Wed Aug 31 01:30:09 CEST 2005
Setting the PFC value as 0x15
Determined physical RAM map:
 memory: 01000000 @ 00000000 (usable)
On node 0 totalpages: 4096
zone(0): 4096 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/mtdblock2 rootfstype=squashfs,jffs2 init=/etc/preinit noinitrd console=ttyS0,115200
CPU: BCM5352 rev 0 at 200 MHz
Using 100.000 MHz high precision timer.
Calibrating delay loop... 199.47 BogoMIPS
Memory: 14296k/16384k available (1390k kernel code, 2088k reserved, 100k data, 80k init, 0k highmem)
Dentry cache hash table entries: 2048 (order: 2, 16384 bytes)
Inode cache hash table entries: 1024 (order: 1, 8192 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 4096 (order: 2, 16384 bytes)
Checking for 'wait' instruction...  unavailable.
POSIX conformance testing by UNIFIX
PCI: no core
PCI: Fixing up bus 0
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
devfs: v1.12c (20020818) Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x1
JFFS2 version 2.1. (C) 2001 Red Hat, Inc., designed by Axis Communications AB.
Squashfs 2.1-r2 (released 2004/12/15) (C) 2002-2004 Phillip Lougher
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at 0xb8000300 (irq = 3) is a 16550A
ttyS01 at 0xb8000400 (irq = 0) is a 16550A
Software Watchdog Timer: 0.05, timer margin: 60 sec
Physically mapped flash: Found an alias at 0x400000 for the chip at 0x0
Physically mapped flash: Found an alias at 0x800000 for the chip at 0x0
Physically mapped flash: Found an alias at 0xc00000 for the chip at 0x0
Physically mapped flash: Found an alias at 0x1000000 for the chip at 0x0
Physically mapped flash: Found an alias at 0x1400000 for the chip at 0x0
Physically mapped flash: Found an alias at 0x1800000 for the chip at 0x0
Physically mapped flash: Found an alias at 0x1c00000 for the chip at 0x0
cfi_cmdset_0001: Erase suspend on write enabled
0: offset=0x0,size=0x2000,blocks=8
1: offset=0x10000,size=0x10000,blocks=63
Using word write method
Flash device: 0x400000 at 0x1c000000
Creating 5 MTD partitions on "Physically mapped flash":
0x00000000-0x00040000 : "pmon"
0x00040000-0x003f0000 : "linux"
0x000c0000-0x00260000 : "rootfs"
0x003f0000-0x00400000 : "nvram"
0x00260000-0x003f0000 : "OpenWrt"
Initializing Cryptographic API
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 1024 bind 2048)
ip_conntrack version 2.1 (5953 buckets, 5953 max) - 320 bytes per conntrack
ip_tables: (C) 2000-2002 Netfilter core team
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
NET4: Ethernet Bridge 008 for NET4.0
802.1Q VLAN Support v1.8 Ben Greear <greearb@candelatech.com>
All bugs added by David S. Miller <davem@redhat.com>
VFS: Mounted root (jffs2 filesystem) readonly.
Mounted devfs on /dev
Freeing unused kernel memory: 80k freed
Algorithmics/MIPS FPU Emulator v1.5
diag boardtype: 00000467
jffs2.bbc: SIZE compression mode activated.
PCI: Setting latency timer of device 00:01.0 to 64
eth0: Broadcom BCM47xx 10/100 Mbps Ethernet Controller 3.90.23.0
PCI: Setting latency timer of device 00:05.0 to 64
eth1: Broadcom BCM4320 802.11 Wireless Controller 3.90.37.0
device eth0 entered promiscuous mode
vlan0: Setting MAC address to  00 14 bf 34 3a c6.
VLAN (vlan0):  Underlying device (eth0) has same MAC, not checking promiscious mode.
vlan0: add 01:00:5e:00:00:01 mcast address to master interface
device eth1 entered promiscuous mode
eth1: attempt to add interface with same source address.
br0: port 2(eth1) entering learning state
br0: port 1(vlan0) entering learning state
br0: port 2(eth1) entering forwarding state
br0: topology change detected, propagating
br0: port 1(vlan0) entering forwarding state
br0: topology change detected, propagating
vlan1: Setting MAC address to  00 14 bf 34 3a c7.
vlan1: add 01:00:5e:00:00:01 mcast address to master interface
SysRq : HELP : loglevel0-8 reBoot tErm kIll showMem showPc unRaw Sync showTasks Unmount 
SysRq : HELP : loglevel0-8 reBoot tErm kIll showMem showPc unRaw Sync showTasks Unmount 
SysRq : HELP : loglevel0-8 reBoot tErm kIll showMem showPc unRaw Sync showTasks Unmount 
SysRq : HELP : loglevel0-8 reBoot tErm kIll showMem showPc unRaw Sync showTasks Unmount 
SysRq : HELP : loglevel0-8 reBoot tErm kIll showMem showPc unRaw Sync showTasks Unmount 
SysRq : HELP : loglevel0-8 reBoot tErm kIll showMem showPc unRaw Sync showTasks Unmount 
SysRq : HELP : loglevel0-8 reBoot tErm kIll showMem showPc unRaw Sync showTasks Unmount 
SysRq : HELP : loglevel0-8 reBoot tErm kIll showMem showPc unRaw Sync showTasks Unmount 
SysRq : HELP : loglevel0-8 reBoot tErm kIll showMem showPc unRaw Sync showTasks Unmount 
SysRq : HELP : loglevel0-8 reBoot tErm kIll showMem showPc unRaw Sync showTasks Unmount 
SysRq : HELP : loglevel0-8 reBoot tErm kIll showMem showPc unRaw Sync showTasks Unmount 
SysRq : HELP : loglevel0-8 reBoot tErm kIll showMem showPc unRaw Sync showTasks Unmount 
SysRq : HELP : loglevel0-8 reBoot tErm kIll showMem showPc unRaw Sync showTasks Unmount 
SysRq : HELP : loglevel0-8 reBoot tErm kIll showMem showPc unRaw Sync showTasks Unmount 
SysRq : HELP : loglevel0-8 reBoot tErm kIll showMem showPc unRaw Sync showTasks Unmount 
root@OpenWrt:/#

Kernel timer tick seems to be working fine (sleep 10 takes 10 seconds and pings go out once a second as expected).

I guess I should test the WiFi next, but things look good so far.

Thanks !!

Please send me a dump of your nvram, I'll try to fix the serial console then.

nbd wrote:

Please send me a dump of your nvram, I'll try to fix the serial console then.

Here's the output of 'nvram showall' after telnetting into openwrt.
I've enabled boot_wait, but everything else should be as the Linksys firmware left it.

How does it help fix the UART ?? (just curious...)

filter_web_host4=
pppoe_keepalive=0
router_name=WRT54GSV4
qos_appport7=0
filter_web_host5=
qos_appport8=0
Intel_firmware_version=v1.00.0
filter_web_host6=
https_enable=0
filter_web_host7=
wl_infra=1
ses_event=0
filter_web_host8=
l2tp_get_ip=
filter_web_host9=
pmon_ver=CFE 3.91.37.0
ppp_get_ac=
pptp_server_ip=
wan_run_mtu=1500
get_sn=
restore_defaults=0
ppp_username=
filter_port=
wan_lease=0
wl0_wme_sta_be=15 1023 3 0 0 off
d11g_dtim=1
ddns_enable_buf=
filter_ip_grp1=
http_wanport=8080
wl_radius_ipaddr=
ddns_hostname=
filter_ip_grp2=
filter_ip_grp3=
wl0_ifname=eth1
lan_domain=
filter_ip_grp4=
dr_lan_rx=0
timer_interval=3600
filter_ip_grp5=
wl0_wme_sta_bk=15 1023 7 0 0 off
filter_ip_grp6=
gpio2=ses_led
filter_rule1=
filter_ip_grp7=
pppoe_ac=
wl_net_reauth=36000
gpio3=ses_led2
filter_rule2=
filter_ip_grp8=
gpio4=ses_button
ipsec_pass=1
hb_server_ip=
qos_devmac1=00:00:00:00:00:00
vlan0ports=3 2 1 0 5*
filter_rule3=
filter_ip_grp9=
ses_enable=1
qos_devmac2=00:00:00:00:00:00
filter_rule4=
lan_route=
filter_rule5=
wl0_mrate=0
filter_rule6=
filter_ip_grp10=
wan_gateway=0.0.0.0
filter_rule7=
wl0_mode=ap
filter_rule8=
dhcp_start=100
filter_rule9=
wl0_ap_isolate=0
ident_pass=0
eou_configured=1
wl_mrate=0
os_flash_addr=bfc40000
wl_akm=
l2tp_server_ip=
sromrev=2
dhcp_lease=0
wl0_gmode=6
wl0_wme_no_ack=off
qos_devpri1=0
get_mac_index=1
qos_devpri2=0
boardtype=0x0467
wl_active_add_mac=0
is_default=1
ping_ip=
wl_gmode=6
stats_server=
static_route=
d11g_rate=0
wl0_wep_last=
lan_netmask=255.255.255.0
dmz_enable=0
http_username=
wl0_ssid=T65
wl0_dtim=1
wl_wme_sta_vi=7 15 2 6016 3008 off
port_trigger=
manual_rate=0
filter_web_host10=
wl_wme_ap_be=15 63 3 0 0 off
qos_devname1=
os_date=Jun 28 2005
qos_devname2=
http_lanport=80
filter_mac_grp1=
wl_plcphdr=long
wl_wme_sta_vo=3 7 2 3264 1504 off
filter_mac_grp2=
ppp_redialperiod=30
ppp_service=
wl_macmode=disabled
wan_hwname=
wan_domain=
filter_mac_grp3=
wl_wme_ap_bk=15 1023 7 0 0 off
wl0id=0x4320
lan_lease=86400
wan_netmask=0.0.0.0
filter_mac_grp4=
wl_phytype=g
wl0_key1=
wl_lazywds=1
filter_mac_grp5=
pppoe_static_ip=
wl0_key2=
filter_mac_grp6=
wl0_key3=
filter_mac_grp7=
wl0_key4=
filter_client0=
filter_mac_grp8=
filter_maclist=
filter_mac_grp9=
ppp_demand=0
wl_auth_mode=none
pptp_get_ip=
pptp_pass=1
ppp_keepalive=0
mtu_enable=0
d11g_rts=2347
block_activex=0
ag0=0x02
http_passwd=admin
wl_wpa_psk=
remote_mgt_https=0
block_wan=1
lan_stp=0
wl0_wme_ap_vi=7 15 1 6016 3008 off
wl_mode=ap
skip_amd_check=0
wl0_closed=0
wl0_rate=0
wl0_plcphdr=long
wl0_macmode=disabled
d11g_rateset=default
wl_wpa_gtk_rekey=3600
wl0_radioids=BCM2050
lan_dhcp=0
wl0_wme_ap_vo=3 7 1 3264 1504 off
wl0gpio2=0
wl0_phytype=g
wl0gpio3=0
wl0_lazywds=1
filter_tod_buf1=
security_mode2=disabled
dr_wan_rx=0
filter_tod_buf2=
block_proxy=0
filter_tod_buf3=
boardflags2=0
upnp_ssdp_interval=60
filter_tod_buf4=
port_rate_limit_1=0
filter_tod_buf5=
port_rate_limit_2=0
http_client_ip=192.168.3.2
filter_tod_buf6=
wl0_afterburner=auto
dr_lan_tx=0
port_rate_limit_3=0
wl0_antdiv=-1
get_eou_index=1
lan_hwaddr=00:14:BF:34:3A:C6
filter_tod10=
filter_tod_buf7=
wl_wds_timeout=1
port_rate_limit_4=0
wan_dns=
filter_tod_buf8=
http_client_mac=00:09:5B:22:CD:37
filter_tod_buf9=
action_service=
wl_ssid=T65
wl_dtim=1
wl0_wpa_psk=
web_wl_filter=0
d11g_bcn=100
wl0_mac_list=
flash_type=Intel 28F320C3 2Mx16 BotB
daylight_time=1
wl_passphrase=
dhcp_wins=wan
security_mode=disabled
bcm4712_firmware_version=v1.00.0
os_server=
filter_tod_buf10=
multicast_pass=0
pppoe_static=0
wan_proto=dhcp
wl_key1=
hb_server_domain=
wl_key2=
ses_client_join=0
wl_key3=
wl0_unit=0
ses_fsm_last_status=6
wl_country_code=ALL
wl_key4=
wl_hwaddr=
ddns_cache=
aol_block_traffic1=0
wl0_net_reauth=36000
static_route_name=
aol_block_traffic2=0
pa0itssit=62
ntp_enable=1
wl_net_mode=mixed
wl_active_mac=
enable_game=0
forward_port=
d11g_frag=2346
sel_qosport1=0
filter_mac_grp10=
wl0_wds=
sel_qosport2=0
ppp_static_ip=
wl_rate=0
sel_qosport3=0
cctl=0
log_level=0
block_java=0
sel_qosport4=0
ct_modules=
ntp_server=
sel_qosport5=0
wan_hwaddr=00:14:BF:34:3A:C7
sel_qosport6=0
sel_qosport7=0
lan_ifnames=vlan0 eth1 eth2 eth3
sel_qosport8=0
pppoe_ifname=
wl_macmode1=disabled
wl0_mac_deny=
wl0_auth=0
wl0_wme=off
wl0_radius_port=1812
wl0_radius_ipaddr=
pppoe_service=
wl_country=ALL
wl0_wme_sta_vi=7 15 2 6016 3008 off
pa0maxpwr=0x4e
traceroute_ip=
ddns_change=
wan_ifnames=vlan1
remote_management=0
wl_rateset=default
wl_crypto=tkip
wl0_wme_sta_vo=3 7 2 3264 1504 off
block_loopback=0
ses_fsm_current_states=01:01
http_method=post
ppp_mru=1500
wl_wep_bit=64
lan_ipaddr=192.168.3.10
clkfreq=200
os_name=linux
lan_proto=static
filter_port_grp1=
wl_radius_key=
QoS=0
wl0_maxassoc=128
aa0=3
vlan1hwname=et0
filter_port_grp2=
filter_port_grp3=
filter_port_grp10=
ddns_passwd_2=
filter_id=1
filter_port_grp4=
wl_unit=0
dr_wan_tx=0
wl0_phytypes=g
firmware_version=v1.05.0
filter_port_grp5=
router_disable=0
filter_port_grp6=
wl0_wep=disabled
d11g_channel=6
wl0_frag=2346
filter_port_grp7=
ddns_username=
filter_port_grp8=
pppoe_passwd=
ddns_passwd=
filter_port_grp9=
ses_led_assertlvl=0
sdram_config=0x0062
log_enable=0
ppp_ac=
wl0_country=ALL
filter_web_url10=
vlan1ports=4 5
dmz_ipaddr=0
wl_wds=
security_mode_last=
scratch=a0180000
ddns_hostname_2=
eou_private_key=3744561b66bc5c8ef1d11bd9c86261558a093a4bde0ae8490aced914062b960e394f3c8787e4cb959a0263a5ed905904b6210b6422afebe31ddcf8839cb3e0000cca759852ddea24e482e4202bc46967640e87185f765ce3b8e3e3bbe02f49ada056013fa788aac364c427cde8bba649ab8f3758d991d14c74b5d52fca4f60e1
ccode=0
wl0_rateset=default
wl0_wep_bit=64
pppoe_idletime=5
wl_wme=off
port_flow_control_1=1
ping_times=
get_mac=00:14:BF:34:3A:C6
port_flow_control_2=1
eou_device_id=LDF9UYWN
lan_ifname=br0
wan_primary=1
wl_wme_ap_vi=7 15 1 6016 3008 off
port_flow_control_3=1
boardflags=0x2758
filter_services=$NAME:003:DNS$PROT:003:udp$PORT:005:53:53< >$NAME:004:Ping$PROT:004:icmp$PORT:003:0:0< >$NAME:004:HTTP$PROT:003:tcp$PORT:005:80:80< >$NAME:005:HTTPS$PROT:003:tcp$PORT:007:443:443< >$NAME:003:FTP$PROT:003:tcp$PORT:005:21:21< >$NAME:004:POP3$PROT:003:tcp$PORT:007:110:110< >$NAME:004:IMAP$PROT:003:tcp$PORT:007:143:143< >$NAME:004:SMTP$PROT:003:tcp$PORT:005:25:25< >$NAME:004:NNTP$PROT:003:tcp$PORT:007:119:119< >$NAME:006:Telnet$PROT:003:tcp$PORT:005:23:23< >$NAME:004:SNMP$PROT:003:udp$PORT:007:161:161< >$NAME:004:TFTP$PROT:003:udp$PORT:005:69:69< >$NAME:003:IKE$PROT:003:udp$PORT:007:500:500< >
port_flow_control_4=1
sdram_refresh=0x0000
dhcp_domain=wan
wl_auth=0
sdram_ncdl=0xfd0009
wl_wep_last=
wl_wme_ap_vo=3 7 1 3264 1504 off
wan_gateway_buf=0.0.0.0
block_cookie=0
wan_iface=vlan1
ezc_enable=1
wl_frameburst=on
upnp_wan_proto=
is_modified=0
wan_ipaddr=0.0.0.0
filter_web_url1=
dhcp_num=50
wl0_passphrase=
filter_web_url2=
filter_web_url3=
filter_web_url4=
wl0_rts=2347
filter_web_url5=
wan_wins=0.0.0.0
filter_web_url6=
wl_ifname=
filter_web_url7=
http_enable=1
wl_wep=disabled
ntp_mode=auto
filter_web_url8=
l2tp_pass=1
os_version=3.91.37.0
filter_web_url9=
pppoe_username=
wan_speed=4
wl_gmode_protection=off
qos_appname1=
wl0_wpa_gtk_rekey=3600
qos_appname2=
ppp_get_srv=
mac_clone_enable=0
qos_appname3=
wl_frag=2346
qos_appname4=
wl0_key=1
wl_wep_gen=
wan_mtu=1500
qos_appname5=
wl0_active_mac=
qos_appname6=
filter_macmode=deny
wl_maclist=
rate_mode=1
qos_appname7=
qos_appname8=
et0phyaddr=30
console_loglevel=1
time_zone=-08 1 1
wan_get_domain=
wan_ifname=vlan1
upnp_max_age=180
wl_wme_sta_be=15 1023 3 0 0 off
wl_radioids=
wan_hostname=
ppp_mtu=1500
wl_corerev=
wl0_radio=1
ddns_interval=60
wl_channel=6
wl0_bcn=100
wl_wme_sta_bk=15 1023 7 0 0 off
manual_boot_nv=0
port_priority_1=0
wl0_hwaddr=00:14:BF:34:3A:C8
filter_tod1=
ppp_static=0
wl_radio=1
wl_afterburner=auto
port_priority_2=0

filter_tod2=
port_priority_3=0
filter_tod3=
port_priority_4=0
wl0_wep_gen=
ezc_version=2
filter_tod4=
pa0b0=0x168b
filter_tod5=
wl0_gmode_protection=off
wk_mode=gateway
ddns_passwd_buf=
pa0b1=0xfabf
filter_tod6=
wl0_maclist=
eou_expired_hour=72
pa0b2=0xfeaf
filter_tod7=
sdram_init=0x010b
filter_tod8=
wl_rts=2347
filter_tod9=
vlan0hwname=et0
lan_wins=
wl_ap_isolate=0
aol_block_traffic=0
dl_ram_addr=a0001000
lan_hwnames=
wl_mac_list=
pppoe_demand=0
wl_wme_no_ack=off
filter_dport_grp10=
wl0_radius_key=
wl0_wme_ap_be=15 63 3 0 0 off
ddns_username_buf=
wl0_corerev=9
wl_key=1
wl0_channel=6
wl0_wds_timeout=1
upnp_enable=1
wl0_wme_ap_bk=15 1023 7 0 0 off
dr_setting=0
filter_rule10=
ddns_status=
ses_sw_btn_status=DEFAULTS
wl_closed=0
wl0_auth_mode=none
boot_ver=v3.6
autofw_port0=
boardnum=42
language=EN
wl0_crypto=tkip
def_hwaddr=00:00:00:00:00:00
wl_bcn=100
wl_wep_buf=
get_sn_index=0
eou_public_key=bbe857f6c3b3a119362d5eb142e817bc6eec2c9b8c8b7c2b8b25aeddae9431638fa70100013d1a963ed4ec675aeac8433809f387a922eed0ff228025e196c66848aa6a7f13bfb369ba2ae926b243ad660f8cf85824aa0fac961db375b19716892c4167752cf5d0816244d75833c3d5fa0db344c76b2613ab2e0e24ac678d867311
filter_dport_grp1=
filter_dport_grp2=
wl_antdiv=-1

I don't know if the nvram will help at all. I just wanted to have a look at it to see if there's anything that can give me a hint.
Please flash this image: http://openwrt.inf.fh-brs.de/~nbd/test/
It won't fix the UART problem, but it'll print some debugging output that might help...

No obvious difference in the uart output.
New dmesg:

root@OpenWrt:/# dmesg
CPU revision is: 00029008
Primary instruction cache 16kB, physically tagged, 2-way, linesize 16 bytes.
Primary data cache 8kB, 2-way, linesize 16 bytes.
Linux version 2.4.30 (nbd@ux-2y01) (gcc version 3.4.4) #2 Thu Sep 1 00:48:37 CEST 2005
CHIP ID: 0x00005352, PLL Type: 0x00038000
Setting the PFC value as 0x15
Determined physical RAM map:
 memory: 01000000 @ 00000000 (usable)
On node 0 totalpages: 4096
zone(0): 4096 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/mtdblock2 rootfstype=squashfs,jffs2 init=/etc/preinit noinitrd console=ttyS0,115200
CPU: BCM5352 rev 0 at 200 MHz
Using 100.000 MHz high precision timer.
Calibrating delay loop... 199.47 BogoMIPS
Memory: 14296k/16384k available (1390k kernel code, 2088k reserved, 100k data, 80k init, 0k highmem)
Dentry cache hash table entries: 2048 (order: 2, 16384 bytes)
Inode cache hash table entries: 1024 (order: 1, 8192 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 4096 (order: 2, 16384 bytes)
Checking for 'wait' instruction...  unavailable.
POSIX conformance testing by UNIFIX
PCI: no core
PCI: Fixing up bus 0
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
devfs: v1.12c (20020818) Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x1
JFFS2 version 2.1. (C) 2001 Red Hat, Inc., designed by Axis Communications AB.
Squashfs 2.1-r2 (released 2004/12/15) (C) 2002-2004 Phillip Lougher
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at 0xb8000300 (irq = 3) is a 16550A
ttyS01 at 0xb8000400 (irq = 0) is a 16550A
Software Watchdog Timer: 0.05, timer margin: 60 sec
Physically mapped flash: Found an alias at 0x400000 for the chip at 0x0
Physically mapped flash: Found an alias at 0x800000 for the chip at 0x0
Physically mapped flash: Found an alias at 0xc00000 for the chip at 0x0
Physically mapped flash: Found an alias at 0x1000000 for the chip at 0x0
Physically mapped flash: Found an alias at 0x1400000 for the chip at 0x0
Physically mapped flash: Found an alias at 0x1800000 for the chip at 0x0
Physically mapped flash: Found an alias at 0x1c00000 for the chip at 0x0
cfi_cmdset_0001: Erase suspend on write enabled
0: offset=0x0,size=0x2000,blocks=8
1: offset=0x10000,size=0x10000,blocks=63
Using word write method
Flash device: 0x400000 at 0x1c000000
Creating 5 MTD partitions on "Physically mapped flash":
0x00000000-0x00040000 : "pmon"
0x00040000-0x003f0000 : "linux"
0x000c0000-0x00260000 : "rootfs"
0x003f0000-0x00400000 : "nvram"
0x00260000-0x003f0000 : "OpenWrt"
Initializing Cryptographic API
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 1024 bind 2048)
ip_conntrack version 2.1 (5953 buckets, 5953 max) - 320 bytes per conntrack
ip_tables: (C) 2000-2002 Netfilter core team
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
NET4: Ethernet Bridge 008 for NET4.0
802.1Q VLAN Support v1.8 Ben Greear <greearb@candelatech.com>
All bugs added by David S. Miller <davem@redhat.com>
VFS: Mounted root (jffs2 filesystem) readonly.
Mounted devfs on /dev
Freeing unused kernel memory: 80k freed
Algorithmics/MIPS FPU Emulator v1.5
diag boardtype: 00000467
jffs2.bbc: SIZE compression mode activated.
PCI: Setting latency timer of device 00:01.0 to 64
CHIP ID: 0x00005352, PLL Type: 0x00038000
eth0: Broadcom BCM47xx 10/100 Mbps Ethernet Controller 3.90.23.0
PCI: Setting latency timer of device 00:05.0 to 64
eth1: Broadcom BCM4320 802.11 Wireless Controller 3.90.37.0
CHIP ID: 0x00005352, PLL Type: 0x00038000
device eth0 entered promiscuous mode
CHIP ID: 0x00005352, PLL Type: 0x00038000
CHIP ID: 0x00005352, PLL Type: 0x00038000
vlan0: Setting MAC address to  00 14 bf 34 3a c6.
VLAN (vlan0):  Underlying device (eth0) has same MAC, not checking promiscious mode.
CHIP ID: 0x00005352, PLL Type: 0x00038000
vlan0: add 01:00:5e:00:00:01 mcast address to master interface
device eth1 entered promiscuous mode
eth1: attempt to add interface with same source address.
br0: port 2(eth1) entering learning state
br0: port 1(vlan0) entering learning state
br0: port 2(eth1) entering forwarding state
br0: topology change detected, propagating
br0: port 1(vlan0) entering forwarding state
br0: topology change detected, propagating
CHIP ID: 0x00005352, PLL Type: 0x00038000
vlan1: Setting MAC address to  00 14 bf 34 3a c7.
vlan1: add 01:00:5e:00:00:01 mcast address to master interface
root@OpenWrt:/#

jffs2 image md5sum are different, but test2 kernel (and dmesg) seems to be the same as test1 ??

siig-ryan:~# md5sum openwrt-wrt54gs_v4-jffs2*
2a7c5196812e6613766a4c026404d097  openwrt-wrt54gs_v4-jffs2.bin
e91904a3d28cca2236cb58008b3232a5  openwrt-wrt54gs_v4-jffs2_uartdebug_test1.bin
b04eb686531168bff3f10d38f6ccc2bb  openwrt-wrt54gs_v4-jffs2_uartdebug_test2.bin

(the links to test1 and test2 images seem to have gone dead).

Sorry, I didn't recompile it properly... You can get the new version from the same URL

new dmesg:

root@OpenWrt:/# dmesg
CPU revision is: 00029008
Primary instruction cache 16kB, physically tagged, 2-way, linesize 16 bytes.
Primary data cache 8kB, 2-way, linesize 16 bytes.
Linux version 2.4.30 (nbd@ux-2y01) (gcc version 3.4.4) #1 Thu Sep 1 02:03:43 CEST 2005
Setting the PFC value as 0x15
Determined physical RAM map:
 memory: 01000000 @ 00000000 (usable)
On node 0 totalpages: 4096
zone(0): 4096 pages.
zone(1): 0 pages.
zone(2): 0 pages.
Kernel command line: root=/dev/mtdblock2 rootfstype=squashfs,jffs2 init=/etc/preinit noinitrd console=ttyS0,115200
CPU: BCM5352 rev 0 at 200 MHz
Using 100.000 MHz high precision timer.
Calibrating delay loop... 199.47 BogoMIPS
Memory: 14296k/16384k available (1390k kernel code, 2088k reserved, 100k data, 80k init, 0k highmem)
Dentry cache hash table entries: 2048 (order: 2, 16384 bytes)
Inode cache hash table entries: 1024 (order: 1, 8192 bytes)
Mount cache hash table entries: 512 (order: 0, 4096 bytes)
Buffer cache hash table entries: 1024 (order: 0, 4096 bytes)
Page-cache hash table entries: 4096 (order: 2, 16384 bytes)
Checking for 'wait' instruction...  unavailable.
POSIX conformance testing by UNIFIX
PCI: no core
PCI: Fixing up bus 0
Linux NET4.0 for Linux 2.4
Based upon Swansea University Computer Society NET3.039
Initializing RT netlink socket
Starting kswapd
devfs: v1.12c (20020818) Richard Gooch (rgooch@atnf.csiro.au)
devfs: boot_options: 0x1
JFFS2 version 2.1. (C) 2001 Red Hat, Inc., designed by Axis Communications AB.
Squashfs 2.1-r2 (released 2004/12/15) (C) 2002-2004 Phillip Lougher
pty: 256 Unix98 ptys configured
Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled
ttyS00 at 0xb8000300 (irq = 3) is a 16550A
ttyS01 at 0xb8000400 (irq = 0) is a 16550A
Software Watchdog Timer: 0.05, timer margin: 60 sec
Physically mapped flash: Found an alias at 0x400000 for the chip at 0x0
Physically mapped flash: Found an alias at 0x800000 for the chip at 0x0
Physically mapped flash: Found an alias at 0xc00000 for the chip at 0x0
Physically mapped flash: Found an alias at 0x1000000 for the chip at 0x0
Physically mapped flash: Found an alias at 0x1400000 for the chip at 0x0
Physically mapped flash: Found an alias at 0x1800000 for the chip at 0x0
Physically mapped flash: Found an alias at 0x1c00000 for the chip at 0x0
cfi_cmdset_0001: Erase suspend on write enabled
0: offset=0x0,size=0x2000,blocks=8
1: offset=0x10000,size=0x10000,blocks=63
Using word write method
Flash device: 0x400000 at 0x1c000000
Creating 5 MTD partitions on "Physically mapped flash":
0x00000000-0x00040000 : "pmon"
0x00040000-0x003f0000 : "linux"
0x000c0000-0x00260000 : "rootfs"
0x003f0000-0x00400000 : "nvram"
0x00260000-0x003f0000 : "OpenWrt"
Initializing Cryptographic API
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP, IGMP
IP: routing cache hash table of 512 buckets, 4Kbytes
TCP: Hash tables configured (established 1024 bind 2048)
ip_conntrack version 2.1 (5953 buckets, 5953 max) - 320 bytes per conntrack
ip_tables: (C) 2000-2002 Netfilter core team
NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
NET4: Ethernet Bridge 008 for NET4.0
802.1Q VLAN Support v1.8 Ben Greear <greearb@candelatech.com>
All bugs added by David S. Miller <davem@redhat.com>
VFS: Mounted root (jffs2 filesystem) readonly.
Mounted devfs on /dev
Freeing unused kernel memory: 80k freed
Algorithmics/MIPS FPU Emulator v1.5
diag boardtype: 00000467
jffs2.bbc: SIZE compression mode activated.
PCI: Setting latency timer of device 00:01.0 to 64
eth0: Broadcom BCM47xx 10/100 Mbps Ethernet Controller 3.90.23.0
PCI: Setting latency timer of device 00:05.0 to 64
eth1: Broadcom BCM4320 802.11 Wireless Controller 3.90.37.0
device eth0 entered promiscuous mode
vlan0: Setting MAC address to  00 14 bf 34 3a c6.
VLAN (vlan0):  Underlying device (eth0) has same MAC, not checking promiscious mode.
vlan0: add 01:00:5e:00:00:01 mcast address to master interface
device eth1 entered promiscuous mode
eth1: attempt to add interface with same source address.
br0: port 2(eth1) entering learning state
br0: port 1(vlan0) entering learning state
br0: port 2(eth1) entering forwarding state
br0: topology change detected, propagating
br0: port 1(vlan0) entering forwarding state
br0: topology change detected, propagating
vlan1: Setting MAC address to  00 14 bf 34 3a c7.
vlan1: add 01:00:5e:00:00:01 mcast address to master interface

No obvious change in the uart output...

New image, same URL, last try before I go to sleep smile

Serial console works !!

Sleep well smile

Hi, I've got a wrt54gl running openwrt rc3.

Alas, serial works only halfway, that is only from from the wrt54gl to PC.
So, the serial console works  but getty - to say - does not.

I made attempts with microcom, picocom, several stty & setserial settings, with
no success sad

I suspect an IRQ conflict with the Robo Switch because it uses the IRQ 3 line as
well as the serial does. If I am right what can be done to resolve this conflict?

Any idea is welcome.
Ciao,
---
# cat /proc/pci | tail
...
  Bus  0, device   6, function  0:
    Class 0280: PCI device 14e4:4719 (rev 0).
      IRQ 3.
      Non-prefetchable 32 bit memory at 0x18006000 [0x18006fff].

# cat /proc/tty/driver/serial
serinfo:1.0 driver:5.05c revision:2001-07-08
0: uart:16550A port:B8000300 irq:3 baud:113636 tx:26964 rx:0 RTS|CTS|DTR|DSR|CD
1: uart:16550A port:B8000400 irq:3 tx:0 rx:0 CTS|DSR|CD

The discussion might have continued from here.