From: "Albrecht Dreß" <albrecht.dress-KvP5wT2u2U0@public.gmane.org>
To: Wolfram Sang <w.sang-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
Cc: devicetree-discuss-mnsaURCQ41sdnm+yROfE0A@public.gmane.org,
Vitaly Wool <vwool-hkdhdckH98+B+jHODAdFcQ@public.gmane.org>,
Artem Bityutskiy
<dedekind-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
linuxppc-dev-mnsaURCQ41sdnm+yROfE0A@public.gmane.org,
linux-mtd-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
Ken MacLeod <ken-VbOJbV3qneKf+c8Povm/Gg@public.gmane.org>,
David Woodhouse <dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
Subject: Re: [PATCH] mtd/maps: add mtd-ram support to physmap_of
Date: Fri, 31 Jul 2009 21:47:10 +0200 [thread overview]
Message-ID: <1249069643.3687.0@antares> (raw)
In-Reply-To: <1247834363-28198-1-git-send-email-w.sang-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org> (from w.sang-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org on Fri Jul 17 14:39:23 2009)
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Am 17.07.09 14:39 schrieb(en) Wolfram Sang:
> Use physmap_of to access RAMs as mtd and add documenation for it.
> This approach is a lot less intrusive as adding an of-wrapper around
> plat-ram.c. As most extensions of plat-ram.c (e.g. custom
> map-functions) can't be mapped to the device tree anyhow, extending
> physmap_of seems to be the cleanest approach.
The patch works nicely on a custom (roughly Icecube) based 5200B board,
with a Renesas static ram, no partitions and a jffs2 file system on
it. I had to add some more tweaks to physmap_of.c as to work around
the 5200's limitations accessing chips in 16-bit mode through the local
bus, which is a lot easier and cleaner with this patch than with the
old one (of 05 June 09).
Acked-by: Albrecht Dreß <albrecht.dress-KvP5wT2u2U0@public.gmane.org>
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next prev parent reply other threads:[~2009-07-31 19:47 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-17 12:39 [PATCH] mtd/maps: add mtd-ram support to physmap_of Wolfram Sang
[not found] ` <1247834363-28198-1-git-send-email-w.sang-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2009-07-31 19:47 ` Albrecht Dreß [this message]
2009-08-08 5:43 ` Grant Likely
2009-08-09 5:17 ` Artem Bityutskiy
2009-08-10 16:19 ` Wolfram Sang
[not found] ` <20090810161942.GA27833-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2009-08-10 16:25 ` Artem Bityutskiy
2009-08-11 5:55 ` Artem Bityutskiy
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