porting linux to DBau1200

[saravanan sar <sar_van81@yahoo.co.in>]

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hi,

has anyone successfully ported linux to DBau1200 board ? here i have problem in mounting root filesystem. i compiled the linux kernel and got the vmlinuz image and ported to the board also. but when i boots up it shows the following error:
YAMON> go
Linux version 2.6.11-r000069-smp (root@suse) (gcc version 3.4.4) #8 Wed May 30 19:22:16 IST 2007
CPU revision is: 04030201
AMD Alchemy Db1200 Board
(PRId 04030201) @ 396MHZ
Determined physical RAM map:
 memory: 10000000 @ 00000000 (usable)
Built 1 zonelists
Kernel command line:  video=au1200fb:panel:bs console=ttyS0,115200
Primary instruction cache 16kB, physically tagged, 4-way, linesize 32 bytes.
Primary data cache 16kB, 4-way, linesize 32 bytes.
Synthesized TLB refill handler (17 instructions).
Synthesized TLB load handler fastpath (34 instructions).
Synthesized TLB store handler fastpath (34 instructions).
Synthesized TLB modify handler fastpath (33 instructions).
PID hash table entries: 2048 (order: 11, 32768 bytes)
calculating r4koff... 00060ae0(396000)
Using 396.000 MHz high precision timer.
Console: colour dummy device 80x25
Dentry cache hash table entries: 65536 (order: 6, 262144 bytes)
Inode-cache hash table entries: 32768 (order: 5, 131072 bytes)
Memory: 255872k/262144k available (1894k kernel code, 6124k reserved, 337k data, 116k init, 0k highmem)
Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
Checking for 'wait' instruction...  unavailable.
NET: Registered protocol family 16
Au1XXX Real Time Clock Driver v1.0
audit: initializing netlink socket (disabled)
audit(120525897.203:0): initialized
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
Initializing Cryptographic API
au1200fb: LCD controller driver for AU1200 processors<6>
au1200fb: Panel 2 SVGA_800x600
au1200fb: Win 2 0-FS gfx, 1-video, 2-ovly gfx, 3-ovly gfx
Panel(SVGA_800x600), 800x600
Console: switching to colour frame buffer device 100x75
rtc: I/O resource 70 is not free.
Serial: Au1x00 driver
ttyS0 at I/O 0xb1100000 (irq = 0) is a AU1X00_UART
ttyS1 at I/O 0xb1200000 (irq = 8) is a AU1X00_UART
io scheduler noop registered
io scheduler anticipatory registered
io scheduler deadline registered
io scheduler cfq registered
RAMDISK driver initialized: 16 RAM disks of 64000K size 1024 blocksize
netconsole: not configured, aborting
NET: Registered protocol family 2
IP: routing cache hash table of 2048 buckets, 16Kbytes
TCP established hash table entries: 16384 (order: 5, 131072 bytes)
TCP bind hash table entries: 16384 (order: 4, 65536 bytes)
TCP: Hash tables configured (established 16384 bind 16384)
NET: Registered protocol family 1
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(1,0).

. i searched in the google regarding this and found that this corresponds to root filesystem not found. 

can anyone provide me any suggestions or solutions for creating root filesystem and linking that with the kernel ?

thanks in advance,

saravanan.

       
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