From: Martin Egholm Nielsen <martin@egholm-nielsen.dk>
To: linux-mtd@lists.infradead.org
Subject: Re: Access to NOR from Linux - what is required?
Date: Tue, 14 Nov 2006 21:02:11 +0100 [thread overview]
Message-ID: <ejd7c4$jua$1@sea.gmane.org> (raw)
In-Reply-To: <f96d234e0611140947n36d1269ao8235f7cbec4fd920@mail.gmail.com>
Cliff Brake wrote:
>>I know this is a rather vague question, but how do I gain access to the
>>NOR flash on my board?
=== 8< 8< 8< ===
> You can often just map in your NOR device using the kernel command
> line without any kernel changes. Something like:
>
> CONFIG_MTD_PARTITIONS=y
> CONFIG_MTD_CMDLINE_PARTS=y
> CONFIG_CMDLINE="mtdparts=phys_mapped_flash:256k(boot)ro,0x1C0000(kernel),-(root)"
> CONFIG_MTD_PHYSMAP=y
> CONFIG_MTD_PHYSMAP_START=0x0000000
> CONFIG_MTD_PHYSMAP_LEN=0x4000000
> CONFIG_MTD_PHYSMAP_BANKWIDTH=4
>
> There is documentation on mtdparts in:
> drivers/mtd/cmdlinepart.c
Super, I'll try this in the morning and let you know! Thanks for now...
// Martin
prev parent reply other threads:[~2006-11-14 20:02 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-14 14:36 Access to NOR from Linux - what is required? Martin Egholm Nielsen
2006-11-14 17:47 ` Cliff Brake
2006-11-14 20:02 ` Martin Egholm Nielsen [this message]
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