Re: samsung nand jffs2 errors

[eugene.kozlov@promwad.com]

Hi howhowwork

Yes i use flash_eraseall -j /dev/mtd/1 as you can see it in nanddump i
just forgot to write it in message

For me its not a clear to understand what is happening because when i
increase chip_delay - it not solve the problem but using delay between
jffs2_check_nand_cleanmarker solve this.

I have some question:
In nand.h:
 * @dev_ready:          [BOARDSPECIFIC] hardwarespecific function for
accesing device ready/busy line
 *                      If set to NULL no access to ready/busy is
available and the ready/busy information
 *                      is read from the chip status register

But i see only using chip_delay when ready/busy pin not available:
                if (!this->dev_ready) {
                        udelay (this->chip_delay);
                        return;
                }
So i need to realise in hardwarespicific function @dev_ready read from the
chip status register or this should be done in nand_base.c?????
Because if first it's need to implement read things from nand_base.c in
hardwarespecific function and this not good practice!!!!

thanx

> Hi  eugene
> To prepare jffs2 image i use: mkfs.jffs2 -o jffs2_image -s 512 -e 16384 -d
>> jffs2_dir -p 0x4000 -n
>> I erase flash with "flash_eraseall /dev/mtd/1" from mtd utils and copy
>> image to flash by nandwrite.
>
> "flash_eraseall /dev/mtd/1 " you maybe use "flash_eraseall -j  /dev/mtd/1"
> when jffs2 scan eraseblock ,it do not need to write the message "OOB Data:
> ff ff ff ff ff ff ff ff 85 19 03 20 08 00 00 00"
>
>
>
>
> howhowwork
> 2007-01-19
>