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Date: Mon, 25 May 2009 23:47:18 +0200
From: Wolfram Sang <w.sang@pengutronix.de>
To: Albrecht =?iso-8859-1?Q?Dre=DF?= <albrecht.dress@arcor.de>
Subject: Re: Weird 5200/mtd-ram problem
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References: <20090520200135.GB13287@pengutronix.de> <1243273283.3328.0@antares>
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> A word or long copy of 0x0055aaff with U-Boot works fine, but a byte =20
> copy filled the whole ram with 0x0000aaaa.  The reason is apparently =20
> that the chip is attached to the local bus in 16-bit mode, which is =20
> incompatible with byte accesses.  However, the Local Bus doesn't provide=
=20
> "low byte" or "high byte" indicators in non-muxed mode.  How is this=20
> supposed to work then?

Hmm, as I feared... we were bitten by this, too:

http://thread.gmane.org/gmane.linux.drivers.mtd/21521

There is no generic solution yet :(

--=20
Pengutronix e.K.                           | Wolfram Sang                |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |

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