* Can't enable ecc check in mtd.
@ 2004-11-07 13:09 zheng wei
2004-11-07 14:02 ` Thomas Gleixner
0 siblings, 1 reply; 2+ messages in thread
From: zheng wei @ 2004-11-07 13:09 UTC (permalink / raw)
To: linux-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
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: Can't enable ecc check in mtd.
2004-11-07 13:09 Can't enable ecc check in mtd zheng wei
@ 2004-11-07 14:02 ` Thomas Gleixner
0 siblings, 0 replies; 2+ messages in thread
From: Thomas Gleixner @ 2004-11-07 14:02 UTC (permalink / raw)
To: zheng wei; +Cc: linux-mtd
On Sun, 2004-11-07 at 21:09 +0800, zheng wei wrote:
> 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,
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
> I have enable the ecc check in mizi linux 2.4.18 for ARM2410.
Read http://www.linux-mtd.infradead.org/#kernelversions
tglx
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