Conduit no longer responding serial login on device port

[Jonathan Pickett]

On power up the PWR, STATUS and LS lights come on and stays on. Spew from the debug port looks like:

OK
   Loading Kernel Image ... OK
OK

Starting kernel ...

Uncompressing Linux... done, booting the kernel.
Booting Linux on physical CPU 0x0
Linux version 3.12.27 (jenkins@frylock) (gcc version 4.8.2 (GCC) ) #1 Wed May 27 01:49:19 CDT 2015
Machine: Atmel AT91SAM (Device Tree), model: Multi-Tech Systems MTCDT
AT91: Detected soc type: at91sam9x5
AT91: Detected soc subtype: at91sam9g25
AT91: sram at 0x300000 of 0x8000 mapped at 0xfef70000
Kernel command line: mem=256M console=ttyS0,115200 root=/dev/mtdblock8 ro rootfstype=jffs2
PID hash table entries: 1024 (order: 0, 4096 bytes)
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Virtual kernel memory layout:
    vector  : 0xffff0000 - 0xffff1000   (   4 kB)
    fixmap  : 0xfff00000 - 0xfffe0000   ( 896 kB)
    vmalloc : 0xd0800000 - 0xff000000   ( 744 MB)
    lowmem  : 0xc0000000 - 0xd0000000   ( 256 MB)
    modules : 0xbf000000 - 0xc0000000   (  16 MB)
      .text : 0xc0008000 - 0xc04ee4a4   (5018 kB)
      .init : 0xc04ef000 - 0xc0516c14   ( 160 kB)
      .data : 0xc0518000 - 0xc05406a0   ( 162 kB)
       .bss : 0xc05406a0 - 0xc055ef08   ( 123 kB)
NR_IRQS:16 nr_irqs:16 16
sched_clock: 32 bits at 100 Hz, resolution 10000000ns, wraps every 4294967286ms
Calibrating delay loop... 199.06 BogoMIPS (lpj=995328)
pid_max: default: 32768 minimum: 301
Mount-cache hash table entries: 512
Initializing cgroup subsys blkio
CPU: Testing write buffer coherency: ok
Setting up static identity map for 0xc03a8cd8 - 0xc03a8d30
devtmpfs: initialized
pinctrl core: initialized pinctrl subsystem
NET: Registered protocol family 16
DMA: preallocated 256 KiB pool for atomic coherent allocations
AT91: Power Management (with slow clock mode)
AT91: Starting after power-restored wakeup
gpio-at91 fffff400.gpio: at address fefff400
gpio-at91 fffff600.gpio: at address fefff600
gpio-at91 fffff800.gpio: at address fefff800
gpio-at91 fffffa00.gpio: at address fefffa00
pinctrl-at91 pinctrl.2: initialized AT91 pinctrl driver
bio: create slab <bio-0> at 0
at_hdmac ffffec00.dma-controller: Atmel AHB DMA Controller ( cpy slave ), 8 channels
at_hdmac ffffee00.dma-controller: Atmel AHB DMA Controller ( cpy slave ), 8 channels
SCSI subsystem initialized
usbcore: registered new interface driver usbfs
usbcore: registered new interface driver hub
usbcore: registered new device driver usb
i2c-gpio i2c.3: using pins 30 (SDA) and 31 (SCL)
i2c-gpio i2c.4: using pins 64 (SDA) and 65 (SCL)
Switched to clocksource tcb_clksrc
NET: Registered protocol family 2
TCP established hash table entries: 2048 (order: 2, 16384 bytes)
TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 2048 bind 2048)
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 named UNIX socket transport module.
RPC: Registered udp transport module.
RPC: Registered tcp transport module.
RPC: Registered tcp NFSv4.1 backchannel transport module.
NFS: Registering the id_resolver key type
Key type id_resolver registered
Key type id_legacy registered
jffs2: version 2.2. (NAND) (SUMMARY)  © 2001-2006 Red Hat, Inc.
ROMFS MTD (C) 2007 Red Hat, Inc.
msgmni has been set to 496
Block layer SCSI generic (bsg) driver version 0.4 loaded (major 252)
io scheduler noop registered (default)
io scheduler deadline registered
io scheduler cfq registered
fffff200.serial: ttyS0 at MMIO 0xfffff200 (irq = 16, base_baud = 8333333) is a ATMEL_SERIAL
console [ttyS0] enabled
f8040000.serial: ttyS1 at MMIO 0xf8040000 (irq = 26, base_baud = 8333333) is a ATMEL_SERIAL
brd: module loaded
loop: module loaded
at24_get_setup: found a match for eeprom at 56
at24 0-0056: 512 byte 24c04 EEPROM, writable, 16 bytes/write
sam9x5: read 512 bytes from id eeprom
at24_get_setup: found a match for eeprom at 50
at24 1-0050: 512 byte 24c04 EEPROM, writable, 16 bytes/write
sam9x5: ap1 eeprom read failed: -110
at24_get_setup: found a match for eeprom at 52
at24 1-0052: 512 byte 24c04 EEPROM, writable, 16 bytes/write
sam9x5: read 512 bytes from ap2 eeprom
atmel_nand 40000000.nand: Using dma0chan0 for DMA transfers.
ONFI param page 0 valid
ONFI flash detected
NAND device: Manufacturer ID: 0x2c, Chip ID: 0xaa (Micron MT29F2G08ABBEAHC), 256MiB, page size: 2048, OOB size: 64
atmel_nand 40000000.nand: ONFI params, minimum required ECC: 4 bits in 512 bytes
atmel_nand 40000000.nand: Initialize PMECC params, cap: 4, sector: 512
Scanning device for bad blocks
9 ofpart partitions found on MTD device atmel_nand
Creating 9 MTD partitions on "atmel_nand":
0x000000000000-0x000010000000 : "NANDFlash"
0x000000000000-0x000000040000 : "at91bootstrap"
0x000000040000-0x0000000c0000 : "u-Boot"
0x0000000c0000-0x000000160000 : "u-Boot Config"
0x000000160000-0x000000200000 : "u-Boot Redundant Config"
0x000000200000-0x000000800000 : "uImage"
0x000000800000-0x000001000000 : "Config"
0x000001000000-0x000001800000 : "OEM Config"
0x000001800000-0x000010000000 : "Rootfs"
libphy: MACB_mii_bus: probed
macb f802c000.ethernet eth0: Cadence MACB at 0xf802c000 irq 23 (00:08:00:4a:01:6f)
macb f802c000.ethernet eth0: attached PHY driver [Generic PHY] (mii_bus:phy_addr=f802c000.etherne:00, irq=-1)
PPP generic driver version 2.4.2
PPP BSD Compression module registered
PPP Deflate Compression module registered
ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
ehci-atmel: EHCI Atmel driver
atmel-ehci 700000.ehci: EHCI Host Controller
atmel-ehci 700000.ehci: new USB bus registered, assigned bus number 1
atmel-ehci 700000.ehci: irq 31, io mem 0x00700000
atmel-ehci 700000.ehci: USB 2.0 started, EHCI 1.00
usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: Product: EHCI Host Controller
usb usb1: Manufacturer: Linux 3.12.27 ehci_hcd
usb usb1: SerialNumber: 700000.ehci
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 3 ports detected
ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
at91_ohci 600000.ohci: AT91 OHCI
at91_ohci 600000.ohci: new USB bus registered, assigned bus number 2
at91_ohci 600000.ohci: irq 31, io mem 0x00600000
usb usb2: New USB device found, idVendor=1d6b, idProduct=0001
usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
usb usb2: Product: AT91 OHCI
usb usb2: Manufacturer: Linux 3.12.27 ohci_hcd
usb usb2: SerialNumber: at91
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 3 ports detected
rtc (null): invalid alarm value: 1900-1-1 0:0:0
at91_rtc fffffeb0.rtc: rtc core: registered fffffeb0.rtc as rtc0
at91_rtc fffffeb0.rtc: AT91 Real Time Clock driver.
i2c /dev entries driver
at91sam9_wdt: enabled (heartbeat=15 sec, nowayout=0)
Netfilter messages via NETLINK v0.30.
nf_conntrack version 0.5.0 (3973 buckets, 15892 max)
ipip: IPv4 over IPv4 tunneling driver
gre: GRE over IPv4 demultiplexor driver
ip_gre: GRE over IPv4 tunneling driver
ip_tables: (C) 2000-2006 Netfilter Core Team
TCP: cubic registered
NET: Registered protocol family 17
l2tp_core: L2TP core driver, V2.0
Key type dns_resolver registered
at91_rtc fffffeb0.rtc: setting system clock to 2015-10-09 21:00:46 UTC (1444424446)
usb 1-2: new high-speed USB device number 2 using atmel-ehci
usb 1-2: New USB device found, idVendor=0424, idProduct=2534
usb 1-2: New USB device strings: Mfr=0, Product=0, SerialNumber=0
hub 1-2:1.0: USB hub found
hub 1-2:1.0: 4 ports detected
usb 2-3: new full-speed USB device number 2 using at91_ohci
usb 2-3: New USB device found, idVendor=04e2, idProduct=1412
usb 2-3: New USB device strings: Mfr=0, Product=0, SerialNumber=0
usb 1-2.2: new high-speed USB device number 3 using atmel-ehci
usb 1-2.2: New USB device found, idVendor=0403, idProduct=6014
usb 1-2.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0
usb 1-2.2: Product: Single RS232-HS
usb 1-2.2: Manufacturer: FTDI
jffs2: notice: (1) jffs2_build_xattr_subsystem: complete building xattr subsystem, 0 of xdatum (0 unchecked, 0 orphan) and 0 of xref (0 dead, 0 orphan) found.
VFS: Mounted root (jffs2 filesystem) readonly on device 31:8.
devtmpfs: mounted
Freeing unused kernel memory: 156K (c04ef000 - c0516000)
INIT: version 2.88 booting
INIT: No inittab file found

Enter runlevel:

It looks like it is running. Neither Windows or Linux recognize the device port when plugged in. It was working earlier today. Any ideas on what to try next?

[Jeff Hatch]

Jonathan,

Have you tried entering the runlevel at the prompt? Run level 5 is a common level for most things to run in normal configuration. If that does not work you may be required to re-flash the device from the boot loader. It appears that your inittab got corrupted or removed somehow.

Jeff Hatch

[Jonathan Pickett]

Enter runlevel: 5
INIT: Entering runlevel: 5
INIT: no more processes left in this runlevel

The device port is still unresponsive.

Are there instructions for reflashing the device?

[Brandon Bayer]

Jonathan,

Use the U-boot instructions on the second half of this page:

Flashing mLinux Firmware

-Brandon

[Jonathan Pickett]

I am in U-Boot and my environment is showing that my U-Boot environment is not configured for flashing:

U-Boot> printenv
baudrate=115200
bootargs=mem=256M console=ttyS0,115200 root=/dev/mtdblock8 ro rootfstype=jffs2
bootcmd=nboot.jffs2 ${loadaddr} 0 ${kernel_addr}; bootm ${loadaddr}
bootdelay=0
ethact=macb0
ethaddr=00:08:00:4a:01:6f
filesize=EE0
hostname=AT91SAM9G25
ipaddr=192.168.2.1
kernel_addr=0x200000
loadaddr=0x22000000
nand_erasesize=20000
nand_oobsize=40
nand_writesize=800
netmask=255.255.255.0
serverip=192.168.2.2
stderr=serial
stdin=serial
stdout=serial

I have downloaded the uboot-setenv-mtcdt script. How do I get the script to the device? The instructions are a little vague at that point.

[Jeff Hatch]

Depending on which terminal program you are using, you can import the script and run it through your terminal program. If you don’t have something like minicom that supports this, then you can revert to cut and pasting the setenv commands in the script.

For example, in minicom you can do a CTRL-A Z, G and point minicom to the script you want to run at the prompt in the menu.

Jeff

[Author]

Posts