linux-kernel - Re: Bug in MTD NAND ONFI chipsize detection

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Date:	Thu, 12 May 2011 09:47:24 +0200
From:	Matthieu CASTET <matthieu.castet@...rot.com>
To:	Nitin Garg <nitingarg98@...il.com>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	"linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
	David Woodhouse <dwmw2@...radead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: Bug in MTD NAND ONFI chipsize detection

Hi,


What's the difference between one lun and multiple lun for mtd ?

Aren't any command to select the current lun ?

Matthieu


Nitin Garg a écrit :
> Why isn't my patch going through? re-sending again,
> 
> Signed-off-by: Nitin Garg <nitingarg98@...xxxxx>
> ---
>  drivers/mtd/nand/nand_base.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)
> 
> diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
> index c54a4cb..cdf6015 100644
> --- a/drivers/mtd/nand/nand_base.c
> +++ b/drivers/mtd/nand/nand_base.c
> @@ -2892,7 +2892,7 @@ static int nand_flash_detect_onfi(struct
> mtd_info *mtd, struct nand_chip *chip,
>  	mtd->writesize = le32_to_cpu(p->byte_per_page);
>  	mtd->erasesize = le32_to_cpu(p->pages_per_block) * mtd->writesize;
>  	mtd->oobsize = le16_to_cpu(p->spare_bytes_per_page);
> -	chip->chipsize = (uint64_t)le32_to_cpu(p->blocks_per_lun) * mtd->erasesize;
> +	chip->chipsize = (uint64_t)le32_to_cpu(p->blocks_per_lun) *
> le32_to_cpu(p->lun_count) * mtd->erasesize;
>  	busw = 0;
>  	if (le16_to_cpu(p->features) & 1)
>  		busw = NAND_BUSWIDTH_16;
--
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