Re: Problem related to root filesystem

[apoorv sangal <apoorvsangal@gmail.com>]

Hi Tore,

Thanks for replying.

I am using Intel StrataFlash Memory (28F2563) and I have checked in
the data sheet it is CFI compliant.

So the problem lies somewhere else.

Regards,
Apoorv Sangal


On 8/5/05, Tore Martin Hagen <THagen@oslo.westerngeco.slb.com> wrote:
> Hi Apoorv.
>=20
> Is the Flash CFI complient?
>=20
> The sharp flash that commes with the ADS8260 board is not.
>=20
> /Tore
>=20
> apoorv sangal wrote:
>=20
> >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 =3D 2
> >
> >kmod: failed to exec /sbin/modprobe -s -k map_rom, errno =3D 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 =3D 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=3DttyS0,115200 root=3DFC160000 rw rootfstyp=
e=3Djffs2
> >
> >Warning: real time clock seems stuck!
> >
> >Calibrating delay loop... 131.89 BogoMIPS
> >
> >Memory: 128712k available (512k kernel code, 260k data, 36k init, 0k hig=
hmem)
> >
> >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 =3D 2
> >
> >kmod: failed to exec /sbin/modprobe -s -k map_rom, errno =3D 2
> >
> >pmc8260 flash map (size->0x2000000 mem->0xFC160000)
> >
> >CFI: Found no pmc8260 flash memory device at location zero
> >
> >*****
> >
> >VFS:test name =3D /dev/root
> >
> >VFS:fs_name =3D jffs2
> >
> >VFS:root name =3D 00:00
> >
> > ****
> >
> >kmod: failed to exec /sbin/modprobe -s -k jffs2, errno =3D 2
> >
> >VFS:tried fs_name =3D jffs2 err =3D -19
> >
> >VFS: Cannot open root device "FC160000" or 00:00
> >
> >Please append a correct "root=3D" 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
> >_______________________________________________
> >Linuxppc-embedded mailing list
> >Linuxppc-embedded@ozlabs.org
> >https://ozlabs.org/mailman/listinfo/linuxppc-embedded
> >
> >
>=20
>