DM368-IPNC boot up issues

Mayank:

I am having the same problem with the DM368-IMX036 IPNC camera from Appro and version 2.6.1. Have you solved this problem?

When I build with the "release" configuration (using the file davinci_dm368_ipnc_defconfig_rel) and write the kernel and filesystem into flash, the boot sequence looks the same as what you showed in your message. The last message is "Loading iSCSI transport class ..." and then nothing else.

When I build with the "debug" configuration (using the file davinci_dm368_ipnc_defconfig_dbg), write the kernel into flash but boot using an NFS-mounted filesystem, the boot sequence completes. After the "Loading iSCSI transport class ..." message, there is one more "sbulla: unknown partition table" message and then the login prompt appears. I can successfully login as root and I can see that various processes have started successfully.

DM36x initialization passed!
TI UBL Base Version: 1.50
Boot Loader BootMode = NAND
Starting NAND Copy...
Valid magicnum, 0xA1ACED66, found in block 0x00000008.
Boot Mode Task Completed

IPNC UBL Version: 1.1.0
Platform: DM368

Jumping to entry point at 0x81080000

U-Boot 1.3.4 (Dec  9 2010 - 17:44:14) DM368-IPNC-1.0.1

I2C:   ready
DRAM:  128 MB
NAND:  NAND device: Manufacturer ID: 0xec, Chip ID: 0xf1 (Samsung NAND 128MiB 3,3V 8-bit)
Bad block table found at page 65472, version 0x01
Bad block table found at page 65408, version 0x01
128 MiB
In:    serial
Out:   serial
Err:   serial
ARM Clock :- 432MHz
DDR Clock :- 340MHz
Ethernet PHY: GENERIC @ 0x01
Hit any key to stop autoboot:  0

Loading from NAND 128MiB 3,3V 8-bit, offset 0x500000
   Image Name:   Linux-2.6.18_pro500-davinci_IPNC
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    1865524 Bytes =  1.8 MB
   Load Address: 80008000
   Entry Point:  80008000
## Booting kernel from Legacy Image at 80700000 ...
   Image Name:   Linux-2.6.18_pro500-davinci_IPNC
   Image Type:   ARM Linux Kernel Image (uncompressed)
   Data Size:    1865524 Bytes =  1.8 MB
   Load Address: 80008000
   Entry Point:  80008000
   Verifying Checksum ... OK
   Loading Kernel Image ... OK
OK

Starting kernel ...

Linux version 2.6.18_pro500-davinci_IPNC_DM368_2.6.0 (troy@ubuntu) (gcc version 4.2.0 (MontaVista 4.2.0-16.0.32.0801914 2008-08-30)) #1 PREEMPT Fri Sep 2 23:53:02 CDT 2011
CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177
Machine: DaVinci DM368 IPNC
Memory policy: ECC disabled, Data cache writeback
DaVinci DM0365 variant 0x8
PLL0: fixedrate: 24000000, commonrate: 170000000, vpssrate: 340000000
PLL0: vencrate_sd: 75555555, ddrrate: 340000000 mmcsdrate: 48571428
PLL1: armrate: 432000000, voicerate: 20571428, vencrate_hd: 27000000
CPU0: D VIVT write-back cache
CPU0: I cache: 16384 bytes, associativity 4, 32 byte lines, 128 sets
CPU0: D cache: 8192 bytes, associativity 4, 32 byte lines, 64 sets
Built 1 zonelists.  Total pages: 12288
Kernel command line: console=ttyS1,115200n8 noinitrd rw root=/dev/nfs nfsroot=192.168.20.142:/home/troy/disk/ipnc_2.6.1/ipnc/target/filesys,nolock mem=48M ip=192.168.20.20:192.168.20.1:192.168.20.1:255.255.255.0 eth=00:0C:0C:A0:06:94
TI DaVinci EMAC: kernel boot params Ethernet address: 00:0C:0C:A0:06:94
PID hash table entries: 256 (order: 8, 1024 bytes)
Clock event device timer0_0 configured with caps set: 07
Console: colour dummy device 80x30
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)
Memory: 48MB = 48MB total
Memory: 44580KB available (3193K code, 654K data, 184K init)
Security Framework v1.0.0 initialized
Capability LSM initialized
Mount-cache hash table entries: 512
CPU: Testing write buffer coherency: ok
NET: Registered protocol family 16
DaVinci: 104 gpio irqs
MUX: initialized GPIO20
MUX: initialized I2C_SCL
Generic PHY: Registered new driver
ch0 default output "COMPOSITE", mode "NTSC"
VPBE Encoder Initialized
SCSI subsystem initialized
NET: Registered protocol family 2
IP route cache hash table entries: 512 (order: -1, 2048 bytes)
TCP established hash table entries: 2048 (order: 1, 8192 bytes)
TCP bind hash table entries: 1024 (order: 0, 4096 bytes)
TCP: Hash tables configured (established 2048 bind 1024)
TCP reno registered

 ***davinci_spi_board_init()!<6>
 ***davinci_spi_board_init_End(0)!<5>VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
squashfs: version 3.1 (2006/08/19) Phillip Lougher
JFFS2 version 2.2. (NAND) (C) 2001-2006 Red Hat, Inc.
yaffs Sep  2 2011 23:49:53 Installing.
SGI XFS with no debug enabled
Initializing Cryptographic API
io scheduler noop registered
io scheduler anticipatory registered (default)
LTT : ltt-facilities init
LTT : ltt-facility-core init in kernel
DAVINCI-WDT: DaVinci Watchdog Timer: heartbeat 60 sec
Serial: 8250/16550 driver $Revision: 1.90 $ 2 ports, IRQ sharing disabled
serial8250.0: ttyS0 at MMIO map 0x1c20000 mem 0xfbc20000 (irq = 40) is a 16550A
serial8250.0: ttyS1 at MMIO map 0x1d06000 mem 0xfbd06000 (irq = 41) is a 16550A
RAMDISK driver initialized: 1 RAM disks of 32768K size 1024 blocksize
Davinci EMAC MII Bus: probed
MAC address is 00:0C:0C:A0:06:94
TI DaVinci EMAC Linux version updated 4.0
netconsole: not configured, aborting
Linux video capture interface: v2.00
Trying to register davinci display video device.
layer=c0639000,layer->video_dev=c0639160
Trying to register davinci display video device.
layer=c04f0e00,layer->video_dev=c04f0f60
davinci_init:DaVinci V4L2 Display Driver V1.0 loaded
i2c /dev entries driver
nand_davinci nand_davinci.0: Using 4-bit hardware ECC
NAND device: Manufacturer ID: 0xec, Chip ID: 0xf1 (Samsung NAND 128MiB 3,3V 8-bit)
Creating 7 MTD partitions on "nand_davinci.0":
0x00000000-0x00300000 : "bootloader"
0x00300000-0x00500000 : "params"
0x00500000-0x00700000 : "kernel"
0x00700000-0x02700000 : "filesystem"
0x02700000-0x02900000 : "data1"
0x02900000-0x02d00000 : "Calibration"
0x02d00000-0x08000000 : "data2"
nand_davinci nand_davinci.0: hardware revision: 2.3
musb_hdrc: version 6.0, cppi-dma, peripheral, debug=0
musb_hdrc musb_hdrc: No DMA interrupt line
musb_hdrc: USB Peripheral mode controller at c3866000 using DMA, IRQ 12
rtc_davinci_dm365 rtc_davinci_dm365.0: rtc intf: proc
rtc_davinci_dm365 rtc_davinci_dm365.0: rtc intf: dev (254:0)
rtc_davinci_dm365 rtc_davinci_dm365.0: rtc core: registered rtc_davinci_dm365 as rtc0
davinci-mmc davinci-mmc.0: Supporting 4-bit mode
davinci-mmc davinci-mmc.0: Using DMA mode
Advanced Linux Sound Architecture Driver Version 1.0.12rc1 (Thu Jun 22 13:55:50 2006 UTC).
ASoC version 0.13.1
CQ0093 Voice Codec 0.1
asoc: cq93vc <-> davinci-vcif mapping ok
ALSA device list:
  #0: On-chip voice codec (cq93vc)
IPv4 over IPv4 tunneling driver
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
rtc_davinci_dm365 rtc_davinci_dm365.0: setting the system clock to 2000-01-03 09:52:40 (946893160)
Time: timer0_1 clocksource has been installed.
Clock event device timer0_0 configured with caps set: 08
Switched to high resolution mode on CPU 0
IP-Config: Complete:
      device=eth0, addr=192.168.20.20, mask=255.255.255.0, gw=192.168.20.1,
     host=192.168.20.20, domain=, nis-domain=(none),
     bootserver=192.168.20.1, rootserver=192.168.20.142, rootpath=
Looking up port of RPC 100003/2 on 192.168.20.142
Looking up port of RPC 100005/1 on 192.168.20.142
VFS: Mounted root (nfs filesystem).
Freeing init memory: 184K
Warning: unable to open an initial console.
CSL: Module install successful, device major num = 253
CSL: Module version 0.10.00, built on Sep  2 2011 23:55:24
I2C: Module install successful, device major num = 252
DMA: Module install successful, device major num = 251
DRV: Module install successful
DRV: Module built on Sep  2 2011 23:55:28
DRV: EDMACC.QUEPRI  = 00000777
DRV: SYSTEM.MSTPRI0 = 00440022
DRV: SYSTEM.MSTPRI1 = 00000244
DRV: ISP.BCR        = 00000002
DRV: SYSTEM.MISC    = 00000391
CMEMK module: built on Sep  2 2011 at 23:54:51
  Reference Linux version 2.6.18
  File /media/LinuxExt2/ipnc_2.6.1/dvsdk_2_10_01_18_v2.6/linuxutils_2_24_03/packages/ti/sdo/linuxutils/cmem/src/module/cmemk.c
allocated heap buffer 0xc4000000 of size 0x5000000
CMEM Range Overlaps Kernel Physical - allowing overlap
CMEM phys_start (0x1000) overlaps kernel (0x80000000 -> 0x83000000)
cmemk initialized
EDMAK module: built on Sep  2 2011 at 23:54:54
  Reference Linux version 2.6.18
  File /media/LinuxExt2/ipnc_2.6.1/dvsdk_2_10_01_18_v2.6/linuxutils_2_24_03/packages/ti/sdo/linuxutils/edma/src/module/edmak.c
IRQK module: built on Sep  2 2011 at 23:54:55
  Reference Linux version 2.6.18
  File /media/LinuxExt2/ipnc_2.6.1/dvsdk_2_10_01_18_v2.6/linuxutils_2_24_03/packages/ti/sdo/linuxutils/irq/src/module/irqk.c
irqk initialized
io scheduler deadline registered
io scheduler cfq registered
 sbulla: unknown partition table
Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
loop: loaded (max 8 devices)
tun: Universal TUN/TAP device driver, 1.6
tun: (C) 1999-2004 Max Krasnyansky <maxk@qualcomm.com>
CSLIP: code copyright 1989 Regents of the University of California
PPP generic driver version 2.4.2
PPP Deflate Compression module registered
Loading iSCSI transport class v1.1-646.<5>iscsi: registered transport (tcp)
 sbulla: unknown partition table

MontaVista(R) Linux(R) Professional Edition 5.0.0 (0702774)

192.168.20.20 login: root


Welcome to MontaVista(R) Linux(R) Professional Edition 5.0.0 (0702774).

login[762]: root login  on `console'

# ps
  PID  Uid     VmSize Stat Command
    1 root        564 S   init [3]
    2 root            SW  [posix_cpu_timer]
    3 root            SW  [softirq-high/0]
    4 root            SW  [softirq-timer/0]
    5 root            SW  [softirq-net-tx/]
    6 root            SW  [softirq-net-rx/]
    7 root            SW  [softirq-block/0]
    8 root            SW  [softirq-tasklet]
    9 root            SW  [softirq-hrtimer]
   10 root            SW  [softirq-rcu/0]
   11 root            SW< [desched/0]
   12 root            SW< [events/0]
   13 root            SW< [khelper]
   14 root            SW< [kthread]
   25 root            SW< [kblockd/0]
   79 root            SW  [pdflush]
   80 root            SW  [pdflush]
   81 root            SW< [kswapd0]
   82 root            SW< [aio/0]
   83 root            SW< [xfslogd/0]
   84 root            SW< [xfsdatad/0]
  176 root            SW  [mtdblockd]
  203 root            SW< [kmmcd]
  218 root            SW< [rpciod/0]
  273 root        404 S < udevd --daemon
  520 root            SWN [jffs2_gcd_mtd4]
  522 root        952 S   ./system_server
  533 root       2296 S   ./av_server.out DM368 NTSC APPRO2A AEWB D1 H264 30000
  650 bin         368 S   /sbin/portmap
  660 root        636 S   /usr/sbin/inetd
  749 root        532 S   ./boa -c /etc
  752 root        488 S   avahi-autoipd: [eth0] sleeping
  753 root        308 S   avahi-autoipd: [eth0] callout dispatcher
  756 root       1208 S   avahi-daemon: running [192.local]
  759 root        512 S   /usr/sbin/avahi-dnsconfd -D
  762 root        852 S   -sh
  765 root        748 R   ps
#

However, the camera's web server does not respond when I connect to it from Internet Explorer or from VLC. If I load into flash the pre-built binaries that were provided by Appro, the camera does not have these problems. It boots and behaves normally.

Hi Troy,

Thanks for your reply.

I tried installing the filesystem through nfs but i am facing problems in that too.

printenv output is:

bootdelay=4                                                                    
baudrate=115200                                                                
setboot=setenv bootargs $(bootargs)                                            
bootamd=nboot 0x80700000 0 0x500000;bootm                                      
bootfile=""                                                                    
ethaddr=00:0C:0C:A0:FF:FA                                                      
filesize=DCE000                                                                
fileaddr=82000000                                                              
bootcmd=nand read 0x82000000 0x700000 0xE00000;nboot 0x80700000 0 0x500000;boot0
eth=00:0C:0C:A0:07:Ea                                                          
rootpath=/home/mayank/DM36x/ipnc/target/filesys                                
bootargs=console=ttyS1,115200n8 noinitrd rw ip=dhcp root=/dev/nfs nfsroot=10.17M
serverip=192.168.1.21                                                          
ipaddr=192.168.1.20                                                            
nfshost=192.168.1.21                                                           
stdin=serial                                                                   
stdout=serial                                                                  
stderr=serial                                                                  
ver=U-Boot 1.3.4 (Dec  9 2010 - 17:44:14) DM368-IPNC-1.0.1                     
                                                                               
Environment size: 643/131068 bytes

and when i am booting i am getting the following output:

bootdelay=4                                                                    
baudrate=115200                                                                
setboot=setenv bootargs $(bootargs)                                            
bootamd=nboot 0x80700000 0 0x500000;bootm                                      
bootfile=""                                                                    
ethaddr=00:0C:0C:A0:FF:FA                                                      
filesize=DCE000                                                                
fileaddr=82000000                                                              
bootcmd=nand read 0x82000000 0x700000 0xE00000;nboot 0x80700000 0 0x500000;boot0
eth=00:0C:0C:A0:07:Ea                                                          
rootpath=/home/mayank/DM36x/ipnc/target/filesys                                
bootargs=console=ttyS1,115200n8 noinitrd rw ip=dhcp root=/dev/nfs nfsroot=10.17M
serverip=192.168.1.21                                                          
ipaddr=192.168.1.20                                                            
nfshost=192.168.1.21                                                           
stdin=serial                                                                   
stdout=serial                                                                  
stderr=serial                                                                  
ver=U-Boot 1.3.4 (Dec  9 2010 - 17:44:14) DM368-IPNC-1.0.1                     

and i am getting the Kernel sync error when booting:

DM368 IPNC :>boot                                                              
                                                                               
NAND read: device 0 offset 0x700000, size 0xe00000                             
Skipping bad block 0x00b80000                                                  
 14680064 bytes read: OK                                                       
                                                                               
Loading from NAND 128MiB 3,3V 8-bit, offset 0x500000                           
   Image Name:   Linux-2.6.18_pro500-davinci_IPNC                              
   Image Type:   ARM Linux Kernel Image (uncompressed)                         
   Data Size:    1818408 Bytes =  1.7 MB                                       
   Load Address: 80008000                                                      
   Entry Point:  80008000                                                      
## Booting kernel from Legacy Image at 80700000 ...                            
   Image Name:   Linux-2.6.18_pro500-davinci_IPNC                              
   Image Type:   ARM Linux Kernel Image (uncompressed)                         
   Data Size:    1818408 Bytes =  1.7 MB                                       
   Load Address: 80008000                                                      
   Entry Point:  80008000                                                      
   Verifying Checksum ... OK                                                   
   Loading Kernel Image ... OK                                                 
OK                                                                             
                                                                               
Starting kernel ...                                                            
                                                                               
Linux version 2.6.18_pro500-davinci_IPNC_DM368_2.6.0 (root@localhost.localdomai1
CPU: ARM926EJ-S [41069265] revision 5 (ARMv5TEJ), cr=00053177                  
Machine: DaVinci DM368 IPNC                                                    
Memory policy: ECC disabled, Data cache writeback                              
DaVinci DM0365 variant 0x8                                                     
PLL0: fixedrate: 24000000, commonrate: 170000000, vpssrate: 340000000          
PLL0: vencrate_sd: 75555555, ddrrate: 340000000 mmcsdrate: 48571428            
PLL1: armrate: 432000000, voicerate: 20571428, vencrate_hd: 27000000           
CPU0: D VIVT write-back cache                                                  
CPU0: I cache: 16384 bytes, associativity 4, 32 byte lines, 128 sets           
CPU0: D cache: 8192 bytes, associativity 4, 32 byte lines, 64 sets             
Built 1 zonelists.  Total pages: 12288                                         
Kernel command line: console=ttyS1,115200n8 noinitrd rw ip=dhcp root=/dev/nfs nM
PID hash table entries: 256 (order: 8, 1024 bytes)                             
Clock event device timer0_0 configured with caps set: 07                       
Console: colour dummy device 80x30                                             
Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)                  
Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)                   
Memory: 48MB = 48MB total                                                      
Memory: 44672KB available (3117K code, 647K data, 176K init)                   
Security Framework v1.0.0 initialized                                          
Capability LSM initialized                                                     
Mount-cache hash table entries: 512                                            
CPU: Testing write buffer coherency: ok                                        
NET: Registered protocol family 16                                             
DaVinci: 104 gpio irqs                                                         
MUX: initialized GPIO20                                                        
MUX: initialized I2C_SCL                                                       
Generic PHY: Registered new driver                                             
ch0 default output "COMPOSITE", mode "NTSC"                                    
VPBE Encoder Initialized                                                       
SCSI subsystem initialized                                                     
NET: Registered protocol family 2                                              
IP route cache hash table entries: 512 (order: -1, 2048 bytes)                 
TCP established hash table entries: 2048 (order: 1, 8192 bytes)                
TCP bind hash table entries: 1024 (order: 0, 4096 bytes)                       
TCP: Hash tables configured (established 2048 bind 1024)                       
TCP reno registered                                                            
                                                                               
 ***davinci_spi_board_init()!<6>                                               
 ***davinci_spi_board_init_End(0)!<5>VFS: Disk quotas dquot_6.5.1              
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)                     
squashfs: version 3.1 (2006/08/19) Phillip Lougher                             
JFFS2 version 2.2. (NAND) (C) 2001-2006 Red Hat, Inc.                          
yaffs Jun 30 2011 15:45:25 Installing.                                         
SGI XFS with no debug enabled                                                  
Initializing Cryptographic API                                                 
io scheduler noop registered                                                   
io scheduler anticipatory registered (default)                                 
LTT : ltt-facilities init                                                      
LTT : ltt-facility-core init in kernel                                         
DAVINCI-WDT: DaVinci Watchdog Timer: heartbeat 60 sec                          
Serial: 8250/16550 driver $Revision: 1.90 $ 2 ports, IRQ sharing disabled      
serial8250.0: ttyS0 at MMIO map 0x1c20000 mem 0xfbc20000 (irq = 40) is a 16550A
serial8250.0: ttyS1 at MMIO map 0x1d06000 mem 0xfbd06000 (irq = 41) is a 16550A
RAMDISK driver initialized: 1 RAM disks of 32768K size 1024 blocksize          
Linux video capture interface: v2.00                                           
Trying to register davinci display video device.                               
layer=c0555a00,layer->video_dev=c0555b60                                       
Trying to register davinci display video device.                               
layer=c0555800,layer->video_dev=c0555960                                       
davinci_init:DaVinci V4L2 Display Driver V1.0 loaded                           
i2c /dev entries driver                                                        
nand_davinci nand_davinci.0: Using 4-bit hardware ECC                          
NAND device: Manufacturer ID: 0xec, Chip ID: 0xf1 (Samsung NAND 128MiB 3,3V 8-b)
Creating 7 MTD partitions on "nand_davinci.0":                                 
0x00000000-0x00300000 : "bootloader"                                           
0x00300000-0x00500000 : "params"                                               
0x00500000-0x00700000 : "kernel"                                               
0x00700000-0x02700000 : "filesystem"                                           
0x02700000-0x02900000 : "data1"                                                
0x02900000-0x02d00000 : "Calibration"                                          
0x02d00000-0x08000000 : "data2"                                                
nand_davinci nand_davinci.0: hardware revision: 2.3                            
MUX: initialized SPI0_SCLK                                                     
MUX: initialized SPI0_SDO)                                                     
dm_spi.0: davinci SPI Controller driver at 0xc3866000 (irq = 42) use_dma=0     
rtc_davinci_dm365 rtc_davinci_dm365.0: rtc intf: proc                          
rtc_davinci_dm365 rtc_davinci_dm365.0: rtc intf: dev (254:0)                   
rtc_davinci_dm365 rtc_davinci_dm365.0: rtc core: registered rtc_davinci_dm365 a0
Advanced Linux Sound Architecture Driver Version 1.0.12rc1 (Thu Jun 22 13:55:50.
ASoC version 0.13.1                                                            
CQ0093 Voice Codec 0.1                                                         
asoc: cq93vc <-> davinci-vcif mapping ok                                       
ALSA device list:                                                              
  #0: On-chip voice codec (cq93vc)                                             
IPv4 over IPv4 tunneling driver                                                
TCP bic registered                                                             
NET: Registered protocol family 1                                              
NET: Registered protocol family 17                                             
Time: timer0_1 clocksource has been installed.                                 
Clock event device timer0_0 configured with caps set: 08                       
Switched to high resolution mode on CPU 0                                      
rtc_davinci_dm365 rtc_davinci_dm365.0: setting the system clock to 2000-01-01 0)
IP-Config: No network devices available.                                       
Looking up port of RPC 100003/2 on 10.17.8.125                                 
portmap: RPC call returned error 101                                           
Root-NFS: Unable to get nfsd port number from server, using default            
Looking up port of RPC 100005/1 on 10.17.8.125                                 
portmap: RPC call returned error 101                                           
Root-NFS: Unable to get mountd port number from server, using default          
mount: RPC call returned error 101                                             
Root-NFS: Server returned error -101 while mounting /home/mayank/DM36x/ipnc/tars
VFS: Unable to mount root fs via NFS, trying floppy.                           
VFS: Cannot open root device "nfs" or unknown-block(2,0)                       
Please append a correct "root=" boot option                                    
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(2,0)

Environment size: 643/131068 bytes

For nfs mount i am following the procedure as given in :

2.4.4 Booting from Flash Using NFS File System in user guide.

Thanks and Regards,

Mayank

In your case, NFS is failing to mount the root filesystem. Your bootargs variable does not look correct to me. To mount the root filesystem at boot time via NFS, nfsroot should specify the NFS server and its exported filesystem. It should look something like this:

console=ttyS1,115200n8 noinitrd rw root=/dev/nfs nfsroot=192.168.1.21:/home/mayank/DM36x/ipnc/target/filesys,nolock mem=48M ip=dhcp

Whether Mayank's NFS problem has been resolved or not, I'm still having the same problem that he originally described. That is, the camera boots but it is unresponsive. I provided the details in my first response in this thread. Can someone help with that problem?

Mayank: If you are able to boot using an NFS root filesystem, is your camera working now? Can you access it from a web browser or from VLC? If not, then I suggest that the original problem described in this thread has not been resolved.

I am currently trying to resolve this issue as well. Have you had any luck in figuring out what's wrong?

When I did some digging around, it appeared that there were also some things that were not 'in the right place' in the file system. Ie.. some hard paths to binaries that were not right.

Rick

I have made some progress. Here are a few observations:

1. The document "IPNC Reference Design on DM36x, User Guide" says that one can build either a "release" build or a "debug" build (see step 13 in section 3.1.1). To build the release build, copy davinci_dm368_ipnc_defconfig_rel to davinci_dm368_ipnc_defconfig. To build the debug build, copy davinci_dm368_ipnc_defconfig_dbg todavinci_dm368_ipnc_defconfig. However, this is NOT correct. Appro told me to build with the version of davinci_dm368_ipnc_defconfig that was included in the published distribution package. If you compare the various versions of these files, the most significant difference is that the various SPI flags need to be enabled. These include CONFIG_SPI, CONFIG_SPI_MASTER, CONFIG_SPI_DAVINCI, CONFIG_SPI_DAVINCI_DMA, CONFIG_SPI_BITBANG and CONFIG_SPI_SPIDEV.

2. Appro also advised that to use an NFS filesystem, boot with a NAND-resident root filesystem and then mount an NFS filesystem during the boot sequence or later. To do this, copy the rcS.nfs file to rcS in the /etc/init.d directory. Edit the rcS script to adjust the mount command to refer to the IP address of the NFS server.

3. The only way I have successfully built a "release" configuration and booted it from NAND using a NAND-resident root filesystem is to use the root userid when unpacking and building the IPNC software. If I use a non-root userid, the kernel and root filesystem images result in a failed boot sequence, as described earlier in this thread. The documentation states that using the root userid is not necessary (see step 14 in section 3.1.1) but it seems to be necessary. It is insufficient to simply re-build everything as root. It must be installed as root and built as root. I have not determined why this is necessary.

Troy,

Thank you very much for the reply. I'm currently working with the DM365 and not the 368, however, I can only surmise that the two code bases are going to be highly similiar.

I did a 'find . -name rcS.nfs' and got no results, so there is no rcS.nfs file in my build at all. Could I talk you into cutting and pasting the contents of that file here for me? It would be greatly appreciated.

I really want to use nfs, but if I have to, I'll jsut burn the image into nand and be done with it and see if that gets me a working system.

Thanks for the checklist, I'll start going through it and trying the things you have noted there. 

re: item 3, the only thing I can think of off the top of my head is that there might be some setuid things going on that require the code being executed to have root privileges.  There's a lot going on in this camera when it comes up and being the only one working on it here, I have my work cut out for me. Haven't even gotten our boards in yet to load a bootloader onto. THAT will be a whole lot of fun right there as well. :)

Rick

We have both DM368 and DM365 IPNC reference design cameras from Appro. My observations about building the code apply to both.

The rcS, rcS.nfs and rcS.normal files are included in the target filesystem image provided with the SDK (e.g. Application/bin/cramfsImage_ipnc_dm368_IMX036_2.60.01). The Rules.make file defines the TARGET_FS variable. The rcS files should be in $(TARGET_FS)/etc/init.d.