help to run the C code on AMCC PPC 405EP Kit

["jagadeesh kalisetty" <jagadeesh.k@rediffmail.com>]

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Hi
     We are using AMCC PPC 405EP Taihu board, our aim is to run the C code on kit. The kit already contains U-boot, linux kernel, and Ramdik images on Flash memory. We are successfully configured C-Kermit, NFS server(/opt/eldk4/ppc_4xx, /mnt/nfs-share) on host(Fedora Core 4). We are succeeded  loading the files from NFS server after U-boot, but we are failed to mount the files (/mnt/nfs-share) on target after kernel booting on kit. But booth host and target are communicating after kernel booting (using ping). 

We using the command to mount /mnt/nfs-share on target(Busy box 1.1.0):

 target # mkdir /mnt/nfs
 target # mount –t nfs 192.168.1.18:/mnt/nfs-share /mnt/nfs
error: monting 192.168.1.18:/mnt/nfs-share on /mnt/nfs : No such directory or file

Can u tell how to mount flash file system on target, using that one also we can run (bebug) the programs on kit using gdb

So we are failed to transfer any file on to the target. Is it any way to run the program on kit using host side ppc_4xx-gdb tool and target side gdbserver tool?

Is there any another way to run the code on the target or 

Below is the problem we are facing while passing arguments to the kernel …….
we are expecting that there is no nfs device notice on the target, we tried different ways but we have failed to mount the root file system on linux or to mount host files on target, But we are succeeded  loading the files from NFS server after U-boot

Hit any key to stop autoboot:  0
=> printenv
bootdelay=5
baudrate=9600
filesize=ebb7e5
ethaddr=50:00:00:00:25:00
eth1addr=50:00:00:00:25:01
loads_echo=1
setboot=setenv bootargs ramdisk=71800 root=/dev/ram ip=$(RT_eth0_ip)$(RT_eth0_ip2)
ethact=ppc_4xx_eth0
bootcmd=run setboot;bootm 0xfc000000 0xfc300000
kozio=bootm 0xffe00000
RT_eth0_ip=192.168.1.62
RT_eth0_ip2=:::::eth0:off
ipaddr=192.168.1.62
serverip=192.168.1.18
netmask=255.255.255.0
hostname=taihu
netdev=eth0
stdin=serial
stdout=serial
stderr=serial
ver=U-Boot 1.1.4 (Jan 19 2006 - 14:16:53)

Environment size: 722/16379 bytes
=> setenv bootargs root=/dev/nfs rw nfsroot=192.168.1.18:/opt/eldk/ppc_4xx ip=192.168.1.62:192.168.1.18::::eth0:off
=> bootm 0xfc000000
## Booting image at fc000000 ...
   Image Name:   Linux-2.6.13
   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
   Data Size:    1121647 Bytes =  1.1 MB
   Load Address: 00000000
   Entry Point:  00000000
   Verifying Checksum ... OK
   Uncompressing Kernel Image ... OK
Linux version 2.6.13 (root@linux_box) (gcc version 4.0.0 (DENX ELDK 4.0 4.0.0)) #50 Tue Feb 7 09:07:24 CST 2006
AMCC PowerPC 405EP Taihu Platform
Built 1 zonelists
Kernel command line: root=/dev/nfs rw nfsroot=192.168.1.18:/opt/eldk/ppc_4xx ip=192.168.1.62:192.168.1.18::::eth0:off
PID hash table entries: 1024 (order: 10, 16384 bytes)
Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
Memory: 127232k available (1916k kernel code, 452k data, 96k init, 0k highmem)
Mount-cache hash table entries: 512
NET: Registered protocol family 16
PCI: Probing PCI hardware
JFFS2 version 2.2. (NAND) (C) 2001-2003 Red Hat, Inc.
Initializing Cryptographic API
Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing enabled
ttyS0 at MMIO 0x0 (irq = 1) is a 16550A
ttyS1 at MMIO 0x0 (irq = 0) is a 16550A
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
loop: loaded (max 8 devices)
mal0: Initialized, 4 tx channels, 2 rx channels
emac: IBM EMAC Ethernet driver, version 2.0
Maintained by Benjamin Herrenschmidt <benh@kernel.crashing.org>
eth0: IBM emac, MAC 50:00:00:00:25:00
eth0: Found Generic MII PHY (0x14)
eth1: IBM emac, MAC 50:00:00:00:25:01
eth1: Found Generic MII PHY (0x10)
e100: Intel(R) PRO/100 Network Driver, 3.4.8-k2-NAPI
e100: Copyright(c) 1999-2005 Intel Corporation
taihu: bootflash mapping: 200000 at ffe00000
AMCC Taihu Boot Flash: Found 1 x16 devices at 0x0 in 16-bit bank
 Amd/Fujitsu Extended Query Table at 0x0040
number of CFI chips: 1
cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness.
Creating 3 MTD partitions on "AMCC Taihu Boot Flash":
0x00000000-0x001a0000 : "kozio diags"
0x001a0000-0x001c0000 : "u-boot env"
0x001c0000-0x00200000 : "u-boot"
taihu: appflash mapping: 2000000 at fc000000
AMCC Taihu Application Flash: Found 2 x16 devices at 0x0 in 16-bit bank
 Amd/Fujitsu Extended Query Table at 0x0040
AMCC Taihu Application Flash: CFI does not contain boot bank location. Assuming top.
number of CFI chips: 1
cfi_cmdset_0002: Disabling erase-suspend-program due to code brokenness.
Creating 3 MTD partitions on "AMCC Taihu Application Flash":
0x00000000-0x00300000 : "kernel"
0x00300000-0x01d00000 : "initrd"
0x01d00000-0x02000000 : "jffs2"
Yenta: CardBus bridge found at 0000:00:07.0 [0000:0000]
Yenta: Enabling burst memory read transactions
Yenta: Using CSCINT to route CSC interrupts to PCI
Yenta: Routing CardBus interrupts to PCI
Yenta TI: socket 0000:00:07.0, mfunc 0x00001000, devctl 0x66
Yenta TI: socket 0000:00:07.0 probing PCI interrupt failed, trying to fix
Yenta TI: socket 0000:00:07.0 falling back to parallel PCI interrupts
Yenta TI: socket 0000:00:07.0 parallel PCI interrupts ok
eth0: Link is Up
eth0: Speed: 100, Full duplex.
Yenta: ISA IRQ mask 0x0000, PCI irq 26
Socket status: 30000087
pcmcia: parent PCI bridge I/O window: 0x0 - 0xffff
pcmcia: parent PCI bridge Memory window: 0x80000000 - 0xbfffffff
zero gadget: Gadget Zero, version: St Patrick's Day 2004
zero gadget: using pd12_udc, OUT ep1out-bulk IN ep2in-bulk
pd12_udc: registered gadget driver 'zero'
i2c /dev entries driver
IBM IIC driver v2.1
ibm-iic0: using standard (100 kHz) mode
NET: Registered protocol family 2
IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
TCP established hash table entries: 8192 (order: 4, 65536 bytes)
TCP bind hash table entries: 8192 (order: 3, 32768 bytes)
TCP: Hash tables configured (established 8192 bind 8192)
TCP reno registered
TCP bic registered
NET: Registered protocol family 1
NET: Registered protocol family 17
NET: Registered protocol family 15
eth0: Link is Up
eth0: Speed: 100, Full duplex.
IP-Config: Guessing netmask 255.255.255.0
IP-Config: Complete:
      device=eth0, addr=192.168.1.62, mask=255.255.255.0, gw=255.255.255.255,
     host=192.168.1.62, domain=, nis-domain=(none),
     bootserver=192.168.1.18, rootserver=192.168.1.18, rootpath=
VFS: Cannot open root device "nfs" or unknown-block(0,255)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(0,255)
 <0>Rebooting in 180 seconds..

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