linux-kernel - Re: [PATCH 2/5] mtd: block2mtd: Add support for specifying MTD write size and subpage shift

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Date:   Mon, 5 Jun 2017 13:21:45 +0200
From:   Pali Rohár <pali.rohar@...il.com>
To:     Richard Weinberger <richard@....at>
Cc:     David Woodhouse <dwmw2@...radead.org>,
        Brian Norris <computersforpeace@...il.com>,
        Boris Brezillon <boris.brezillon@...e-electrons.com>,
        Marek Vasut <marek.vasut@...il.com>,
        Artem Bityutskiy <dedekind1@...il.com>,
        linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/5] mtd: block2mtd: Add support for specifying MTD write
 size and subpage shift

On Friday 02 June 2017 18:13:02 Richard Weinberger wrote:
> Pali,
> 
> Am 02.06.2017 um 17:43 schrieb Pali Rohár:
> > It is needed for creating emulated devices suitable for using in UBI layer
> > and with UBIFS.
> 
> Why?

ubifs depends on write size of nand. And without those parameters as
specified in cover letter I'm unable to mount N900 rootfs image exported
via block2mtd. ubifs reject such image.

-- 
Pali Rohár
pali.rohar@...il.com