From: "Cédric Le Goater" <clg@kaod.org>
To: openbmc@lists.ozlabs.org
Cc: Joel Stanley <joel@jms.id.au>, Cyril Bur <cyril.bur@au1.ibm.com>
Subject: Re: [PATCH linux dev-4.7] mtd: spi-nor: add SECT_4K to mx25l25635e
Date: Fri, 21 Oct 2016 11:52:57 +0200 [thread overview]
Message-ID: <d2ad5ccb-90b0-b5fa-1d70-f0bd6757ee1e@kaod.org> (raw)
In-Reply-To: <1477039467-25076-1-git-send-email-clg@kaod.org>
On 10/21/2016 10:44 AM, Cédric Le Goater wrote:
> The current setting is to erase blocks (64KB) but the chip supports
> sector (4KB) erase and it is currently a problem to erase "partitions"
> which are smaller than the block size (64KB), the GUARD partition for
> instance.
There are few other macronixs that would need a similar change but
this has an impact on existing jffs2 filesystems on the flash. I am
not sure we will be able to merge this change in mainline.
C.
> Signed-off-by: Cédric Le Goater <clg@kaod.org>
> ---
> drivers/mtd/spi-nor/spi-nor.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> Index: linux-openbmc-4.7.git/drivers/mtd/spi-nor/spi-nor.c
> ===================================================================
> --- linux-openbmc-4.7.git.orig/drivers/mtd/spi-nor/spi-nor.c
> +++ linux-openbmc-4.7.git/drivers/mtd/spi-nor/spi-nor.c
> @@ -855,7 +855,7 @@ static const struct flash_info spi_nor_i
> { "mx25u6435f", INFO(0xc22537, 0, 64 * 1024, 128, SECT_4K) },
> { "mx25l12805d", INFO(0xc22018, 0, 64 * 1024, 256, 0) },
> { "mx25l12855e", INFO(0xc22618, 0, 64 * 1024, 256, 0) },
> - { "mx25l25635e", INFO(0xc22019, 0, 64 * 1024, 512, 0) },
> + { "mx25l25635e", INFO(0xc22019, 0, 64 * 1024, 512, SECT_4K) },
> { "mx25l25655e", INFO(0xc22619, 0, 64 * 1024, 512, 0) },
> { "mx66l51235l", INFO(0xc2201a, 0, 64 * 1024, 1024, SPI_NOR_QUAD_READ) },
> { "mx66l1g45g", INFO(0xc2201b, 0, 64 * 1024, 2048, SECT_4K | SPI_NOR_QUAD_READ) },
>
next prev parent reply other threads:[~2016-10-21 9:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-21 8:44 [PATCH linux dev-4.7] mtd: spi-nor: add SECT_4K to mx25l25635e Cédric Le Goater
2016-10-21 9:52 ` Cédric Le Goater [this message]
2016-10-25 12:11 ` Joel Stanley
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