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From: Boris Brezillon <bbrezillon@kernel.org>
To: Schrempf Frieder <frieder.schrempf@kontron.de>
Cc: "boris.brezillon@bootlin.com" <boris.brezillon@bootlin.com>,
	"miquel.raynal@bootlin.com" <miquel.raynal@bootlin.com>,
	"richard@nod.at" <richard@nod.at>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>,
	David Woodhouse <dwmw2@infradead.org>,
	Brian Norris <computersforpeace@gmail.com>,
	Marek Vasut <marek.vasut@gmail.com>
Subject: Re: [PATCH v2 4/4] mtd: rawnand: AMD: Also use the last page for bad block markers
Date: Tue, 22 Jan 2019 17:28:42 +0100	[thread overview]
Message-ID: <20190122172842.0c36876f@bbrezillon> (raw)
In-Reply-To: <20190122112258.20042-5-frieder.schrempf@kontron.de>

On Tue, 22 Jan 2019 11:23:33 +0000
Schrempf Frieder <frieder.schrempf@kontron.de> wrote:

> From: Frieder Schrempf <frieder.schrempf@kontron.de>
> 
> According to the datasheet of some Cypress SLC NANDs, the bad
> block markers can be in the first, second or last page of a block.
> So let's check all three locations.
> 
> Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>

Reviewed-by: Boris Brezillon <bbrezillon@kernel.org>

> ---
>  drivers/mtd/nand/raw/nand_amd.c | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/mtd/nand/raw/nand_amd.c b/drivers/mtd/nand/raw/nand_amd.c
> index 6202cbf7ee8d..2ffcddff3e27 100644
> --- a/drivers/mtd/nand/raw/nand_amd.c
> +++ b/drivers/mtd/nand/raw/nand_amd.c
> @@ -40,7 +40,13 @@ static void amd_nand_decode_id(struct nand_chip *chip)
>  static int amd_nand_init(struct nand_chip *chip)
>  {
>  	if (nand_is_slc(chip))
> -		chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE;
> +		/*
> +		 * According to the datasheet of some Cypress SLC NANDs,
> +		 * the bad block markers can be in the first, second or last
> +		 * page of a block. So let's check all three locations.
> +		 */
> +		chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE |
> +				 NAND_BBM_LASTPAGE;
>  
>  	return 0;
>  }


WARNING: multiple messages have this Message-ID (diff)
From: Boris Brezillon <bbrezillon@kernel.org>
To: Schrempf Frieder <frieder.schrempf@kontron.de>
Cc: Marek Vasut <marek.vasut@gmail.com>,
	"richard@nod.at" <richard@nod.at>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"boris.brezillon@bootlin.com" <boris.brezillon@bootlin.com>,
	"linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>,
	"miquel.raynal@bootlin.com" <miquel.raynal@bootlin.com>,
	Brian Norris <computersforpeace@gmail.com>,
	David Woodhouse <dwmw2@infradead.org>
Subject: Re: [PATCH v2 4/4] mtd: rawnand: AMD: Also use the last page for bad block markers
Date: Tue, 22 Jan 2019 17:28:42 +0100	[thread overview]
Message-ID: <20190122172842.0c36876f@bbrezillon> (raw)
In-Reply-To: <20190122112258.20042-5-frieder.schrempf@kontron.de>

On Tue, 22 Jan 2019 11:23:33 +0000
Schrempf Frieder <frieder.schrempf@kontron.de> wrote:

> From: Frieder Schrempf <frieder.schrempf@kontron.de>
> 
> According to the datasheet of some Cypress SLC NANDs, the bad
> block markers can be in the first, second or last page of a block.
> So let's check all three locations.
> 
> Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>

Reviewed-by: Boris Brezillon <bbrezillon@kernel.org>

> ---
>  drivers/mtd/nand/raw/nand_amd.c | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/mtd/nand/raw/nand_amd.c b/drivers/mtd/nand/raw/nand_amd.c
> index 6202cbf7ee8d..2ffcddff3e27 100644
> --- a/drivers/mtd/nand/raw/nand_amd.c
> +++ b/drivers/mtd/nand/raw/nand_amd.c
> @@ -40,7 +40,13 @@ static void amd_nand_decode_id(struct nand_chip *chip)
>  static int amd_nand_init(struct nand_chip *chip)
>  {
>  	if (nand_is_slc(chip))
> -		chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE;
> +		/*
> +		 * According to the datasheet of some Cypress SLC NANDs,
> +		 * the bad block markers can be in the first, second or last
> +		 * page of a block. So let's check all three locations.
> +		 */
> +		chip->options |= NAND_BBM_FIRSTPAGE | NAND_BBM_SECONDPAGE |
> +				 NAND_BBM_LASTPAGE;
>  
>  	return 0;
>  }


______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/

  reply	other threads:[~2019-01-22 16:28 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-22 11:23 [PATCH v2 0/4] mtd: rawnand: Support bad block markers in first, second or last page Schrempf Frieder
2019-01-22 11:23 ` Schrempf Frieder
2019-01-22 11:23 ` [PATCH v2 1/4] mtd: nand: Always store info about bad block markers in chip struct Schrempf Frieder
2019-01-22 11:23   ` Schrempf Frieder
2019-01-22 13:13   ` Schrempf Frieder
2019-01-22 13:13     ` Schrempf Frieder
2019-01-22 13:18   ` Boris Brezillon
2019-01-22 13:18     ` Boris Brezillon
2019-01-22 13:53     ` Schrempf Frieder
2019-01-22 13:53       ` Schrempf Frieder
2019-01-22 11:23 ` [PATCH v2 2/4] mtd: rawnand: Support bad block markers in first, second or last page Schrempf Frieder
2019-01-22 11:23   ` Schrempf Frieder
2019-01-22 16:26   ` Boris Brezillon
2019-01-22 16:26     ` Boris Brezillon
2019-01-22 11:23 ` [PATCH v2 3/4] mtd: rawnand: ESMT: Also use the last page for bad block markers Schrempf Frieder
2019-01-22 11:23   ` Schrempf Frieder
2019-01-22 16:27   ` Boris Brezillon
2019-01-22 16:27     ` Boris Brezillon
2019-01-22 11:23 ` [PATCH v2 4/4] mtd: rawnand: AMD: " Schrempf Frieder
2019-01-22 11:23   ` Schrempf Frieder
2019-01-22 16:28   ` Boris Brezillon [this message]
2019-01-22 16:28     ` Boris Brezillon
2019-01-22 13:09 ` [PATCH v2 0/4] mtd: rawnand: Support bad block markers in first, second or last page Schrempf Frieder
2019-01-22 13:09   ` Schrempf Frieder

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