linux-kernel - Re: [PATCH] mtd: Expose partition offset to the drivers

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Date:	Mon, 2 Feb 2015 20:17:58 +0100
From:	Richard Weinberger <richard.weinberger@...il.com>
To:	Ricardo Ribalda Delgado <ricardo.ribalda@...il.com>
Cc:	David Woodhouse <dwmw2@...radead.org>,
	Brian Norris <computersforpeace@...il.com>,
	"linux-mtd@...ts.infradead.org" <linux-mtd@...ts.infradead.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mtd: Expose partition offset to the drivers

On Mon, Feb 2, 2015 at 5:22 PM, Ricardo Ribalda Delgado
<ricardo.ribalda@...il.com> wrote:
> Currently, there is no way to find out the offset of an mtd partition by
> a driver. This might be needed by external hardware.
>
> For example, a flash containing the firmware of an external device that
> is also accessible by the main cpu/kernel.
>
> The flash is big enough to have two partitions with 2 versions of the
> firmware, so we can have a safe upgrade.
>
> Once the flash has been updated we need the real offset, so we can write
> it on the external device registers.

Can you please also send a patch which shows the usage of this new function
by a driver?

-- 
Thanks,
//richard
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