Can't enable ecc check in mtd.

Hi, sir
I cannot enable ecc check in mtd, the message in nand.c, func int
nand_write_page (),
printk (KERN_WARNING "Writing data without ECC to NAND-FLASH is not recommended\n");

In mtd/nand.c,
static int nand_write_page (struct mtd_info *mtd, struct nand_chip *this, int page, u_char *oob_buf, struct nand_oobinfo *oobsel)

{
	int 	i, status;
	u_char	ecc_code[6], *oob_data;
	int	eccmode = oobsel->useecc ? this->eccmode : NAND_ECC_NONE;

//??????? I have initialize the eccmode to NAND_ECC_HW3_512,
...
}

I have enable the ecc check in mizi linux 2.4.18 for ARM2410.

Thank you

Maybe, but the variable which is checked is oobsel->useecc.

Read http://www.linux-mtd.infradead.org/tech/mtdnand/index.html
and http://www.linux-mtd.infradead.org/tech/mtdnand/x215.html
and http://www.linux-mtd.infradead.org/tech/mtdnand/c460.html

Read http://www.linux-mtd.infradead.org/#kernelversions

tglx