linux-kernel - Re: [PATCH] mtd: denali: Disable sub-page writes in Denali NAND driver

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Message-ID: <CADhT+weaYA1cSQCNP98Ta0ChgxymbBbwtRikdUdcbL2pQB-TXQ@mail.gmail.com>
Date:	Tue, 3 Feb 2015 16:15:04 -0600
From:	Dinh Nguyen <dinh.linux@...il.com>
To:	Dinh Nguyen <dinguyen@...nsource.altera.com>
Cc:	computersforpeace@...il.com, dwmw2@...radead.org,
	yamada.m@...panasonic.com, josh@...htriplett.org,
	linux-mtd@...ts.infradead.org,
	Linux List <linux-kernel@...r.kernel.org>,
	Graham Moore <grmoore@...nsource.altera.com>
Subject: Re: [PATCH] mtd: denali: Disable sub-page writes in Denali NAND driver

Hi Brian,

On Wed, Jan 14, 2015 at 9:38 AM,  <dinguyen@...nsource.altera.com> wrote:
> From: Graham Moore <grmoore@...nsource.altera.com>
>
> The Denali Controller IP does not support sub-page writes.
>
> Signed-off-by: Graham Moore <grmoore@...nsource.altera.com>
> Signed-off-by: Dinh Nguyen <dinguyen@...nsource.altera.com>
> ---
>  drivers/mtd/nand/denali.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
> index b3b7ca1..b16b040 100644
> --- a/drivers/mtd/nand/denali.c
> +++ b/drivers/mtd/nand/denali.c
> @@ -1565,6 +1565,9 @@ int denali_init(struct denali_nand_info *denali)
>         denali->nand.options |= NAND_SKIP_BBTSCAN;
>         denali->nand.ecc.mode = NAND_ECC_HW_SYNDROME;
>
> +       /* no subpage writes on denali */
> +       denali->nand.options |= NAND_NO_SUBPAGE_WRITE;
> +
>         /*
>          * Denali Controller only support 15bit and 8bit ECC in MRST,
>          * so just let controller do 15bit ECC for MLC and 8bit ECC for
> --
> 2.2.1
>

Was wondering if you got a chance to look at this patch?

Thanks,
Dinh
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