Re: Problem related to root filesystem

[Tore Martin Hagen <THagen@oslo.westerngeco.slb.com>]

Hi Apoorv.

Is the Flash CFI complient?

The sharp flash that commes with the ADS8260 board is not.

/Tore

apoorv sangal wrote:

>Hi All,
>	I am porting Linux on the custom board PMC8266 (having MPC8266
>microprocessor) based on the ADS8260 board.I am using ELDK1.1.1 and
>Linux2.4.24.
>
>I am trying to load JFFS2 filesystem , the JFFS2 filesystem image is
>at address 0xFC160000 and the flash size is 32mb
>
>I am getting the following messages:-
>physmap flash device: 2000000 at fc160000
>
>CFI: Found no Physically mapped flash device at location zero
>
>kmod: failed to exec /sbin/modprobe -s -k jedec_probe, errno = 2
>
>kmod: failed to exec /sbin/modprobe -s -k map_rom, errno = 2
>
>pmc8260 flash map (size->0x2000000 mem->0xFC160000)
>
>CFI: Found no pmc8260 flash memory device at location zero
>
>Can anyone please tell me what is happening and how can i set it right??
>
>*****************************************************************************
>The whole of captured output is as following:-
>*****************************************************************************
>Image Name:   2.4.24 ADS8260
>   Image Type:   PowerPC Linux Kernel Image (gzip compressed)
>   Data Size:    302270 Bytes = 295.2 kB
>   Load Address: 00000000
>   Entry Point:  00000000
>   Verifying Checksum ... OK
>   Uncompressing Kernel Image ... 
>
>Linux version 2.4.24-pre2 (satyam@pmcserver) (gcc version 3.2.2
>20030217 (Yellow Dog Linux 3.0 3.2.2-2a_1)) #20 Fri Aug 5 15:22:28 IST
>2005
>
>On node 0 totalpages: 32768
>
>zone(0): 32768 pages.
>
>zone(1): 0 pages.
>
>zone(2): 0 pages.
>
>Kernel command line: console=ttyS0,115200 root=FC160000 rw rootfstype=jffs2
>
>Warning: real time clock seems stuck!
>
>Calibrating delay loop... 131.89 BogoMIPS
>
>Memory: 128712k available (512k kernel code, 260k data, 36k init, 0k highmem)
>
>Dentry cache hash table entries: 16384 (order: 5, 131072 bytes)
>
>Inode cache hash table entries: 8192 (order: 4, 65536 bytes)
>
>Mount cache hash table entries: 512 (order: 0, 4096 bytes)
>
>Buffer cache hash table entries: 8192 (order: 3, 32768 bytes)
>
>Page-cache hash table entries: 32768 (order: 5, 131072 bytes)
>
>POSIX conformance testing by UNIFIX
>
>Linux NET4.0 for Linux 2.4
>
>Based upon Swansea University Computer Society NET3.039
>
>Starting kswapd
>
>Inside Chr_dev_init
>
>CPM UART driver version 0.01
>
>ttyS0 on SMC1 at 0x0000, BRG7
>
>ttyS1 on SMC2 at 0x0040, BRG8
>
>ttyS2 on SCC1 at 0x8000, BRG1
>
>ttyS3 on SCC2 at 0x8100, BRG2
>
>RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
>
>physmap flash device: 2000000 at fc160000
>
>CFI: Found no Physically mapped flash device at location zero
>
>kmod: failed to exec /sbin/modprobe -s -k jedec_probe, errno = 2
>
>kmod: failed to exec /sbin/modprobe -s -k map_rom, errno = 2
>
>pmc8260 flash map (size->0x2000000 mem->0xFC160000)
>
>CFI: Found no pmc8260 flash memory device at location zero
>
>*****
>
>VFS:test name = /dev/root
>
>VFS:fs_name = jffs2 
>
>VFS:root name = 00:00
>
> **** 
>
>kmod: failed to exec /sbin/modprobe -s -k jffs2, errno = 2
>
>VFS:tried fs_name = jffs2 err = -19
>
>VFS: Cannot open root device "FC160000" or 00:00
>
>Please append a correct "root=" boot option
>
>Kernel panic: VFS: Unable to mount root fs on 00:00
>
> <0>Rebooting in 180 seconds..
>
>Response awaited from the list.
>
>Regards,
>Apoorv Sangal
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