Hi Frank
Thank you very much for your help
Now i have loaded the filesystem into flash and kernel into flash
observations:
case1 :
filesystem is from nand flash and uImage from tftp
i.e. [ bootargs= ...............root=/dev/mtdblock3............
bootcmd=run setboot;tftp 0x86000000 uImage;bootm 0x86000000 ]
Result:works very fine
case 2:
filesystem from NAND flash and kernel from NAND flash
i.e. [ bootargs= ...............root=/dev/mtdblock3............
bootcmd= nboot 0x86000000 0 60000 ]
Result:It hangs at initial stage itself, bootlog is given below
////////////////////////////////////////////////
Booting PSP Boot Loader
Starting NAND Copy
Booting Application @ 0x81080000
U-Boot 1.1.3 (Mar 3 2006 - 01:18:40)
U-Boot code: 81080000 -> 8109A3DC BSS: -> 810A3368
RAM Configuration:
Bank #0: 80000000 256 MB
unknown vendor=0 Flash: 0 kB
NAND:64 MB
In: serial
Out: serial
Err: serial
ARM Clock :- 283MZ
DDR Clock :- 189MZ
Hit any key to stop autoboot: 0
Loading from device 0: <NULL> at 0x2000000 (offset 0x60000)
Image Name: Linux-2.6.10_mvl401-davinci_evm
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 1383992 Bytes = 1.3 MB
Load Address: 80008000
Entry Point: 80008000
Automatic boot of image at addr 0x86000000 ...
## Booting image at 86000000 ...
Image Name: Linux-2.6.10_mvl401-davinci_evm
Image Type: ARM Linux Kernel Image (uncompressed)
Data Size: 1383992 Bytes = 1.3 MB
Load Address: 80008000
Entry Point: 80008000
Verifying Checksum ... Bad Data CRC
DaVinci EVM #
///////////////////////////////////
Is there any mistake in setting the "bootcmd" and "bootargs"
Please help me to come out of this problem
Regards
Rajesh
-----Original Message-----
From: Frank Xue [mailto:[EMAIL PROTECTED]
Sent: Monday, May 26, 2008 2:55 PM
To: [EMAIL PROTECTED]
Subject: Re: how to boot from jffs2 filesystem in nand
Hi, Rajesh
This article explain how to put JFFS2 Image to Flash when kernel is running.
http://wiki.davincidsp.com/index.php?title=Put_JFFS2_Image_to_Flash
however, I used another method to finish this mission.
I put JFFS2 image into NAND with u-boot command line.
> dev: size erasesize name
> mtd0: 00040000 00004000 "bootloader"
> mtd1: 00020000 00004000 "params"
> mtd2: 00400000 00004000 "kernel"
> mtd3: 03ba0000 00004000 "filesystem"
>
>
> Can you explain me how to load the kernel image and jffs2
> filesystem into NAND flash.
>
> My doubts are
>
> 1. How to load the Kernel image into the NAND flash
>
at first, you should prepare kernel image.
then load kernel image into RAM:
tftp 0x80700000 /images/kernel.img
> 2. In the "nand write.jffs2 0x80700000 0x00118000 0x00500000" command
> what is 2nd parameter (0x00118000), is that the starting adress of
> filesystem
> partition in NAND
>
nand erase 0x00118000 0x500000
nand write.jffs2 0x80700000 0x00118000 0x00500000
YES, 2nd parameter is the starting address of kernel partition in NAND.
you may change it.
> 3 what does "boot kernel" and "fsload uImage" commands will do?
>
>
Once the kernel image put into kernel partition in NAND,
you can load kernel from NAND and boot up your board.
:) fsload is one of commands of u-boot. but "boot kernel" is not.
Regards
Frank
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