From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from nbd.name ([46.4.11.11]) by canuck.infradead.org with esmtps (Exim 4.72 #1 (Red Hat Linux)) id 1Q4DCg-0003wc-Az for linux-mtd@lists.infradead.org; Mon, 28 Mar 2011 14:13:59 +0000 Message-ID: <4D909800.50701@phrozen.org> Date: Mon, 28 Mar 2011 16:15:28 +0200 From: John Crispin MIME-Version: 1.0 To: dedekind1@gmail.com Subject: Re: [PATCH V2 06/10] MIPS: lantiq: add NOR flash support References: <1298996006-15960-1-git-send-email-blogic@openwrt.org> <1298996006-15960-7-git-send-email-blogic@openwrt.org> <1299488320.2746.5.camel@localhost> <4D74CEC2.4040506@openwrt.org> In-Reply-To: <4D74CEC2.4040506@openwrt.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: linux-mips@linux-mips.org, Ralf Baechle , Ralph Hempel , linux-mtd@lists.infradead.org, Daniel Schwierzeck , David Woodhouse List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 07/03/11 13:25, John Crispin wrote: > On 07/03/11 09:58, Artem Bityutskiy wrote: >> On Tue, 2011-03-01 at 17:13 +0100, John Crispin wrote: >> >>> NOR flash is attached to the same EBU (External Bus Unit) as PCI. As described >>> in the PCI patch, the EBU is a little buggy, resulting in the upper and lower >>> 16 bit of the data on a 32 bit read are swapped. (essentially we have a addr^=2) >>> >>> To work around this we do a addr^=2 during the probe. Once probed we adapt >>> cfi->addr_unlock1 and cfi->addr_unlock2 to represent the endianess bug. >>> >>> Changes in V2 >>> * handle the endianess bug inside the map code and not in the generic cfi code >>> * remove the addr swizzle patch >>> >>> Signed-off-by: John Crispin >>> Signed-off-by: Ralph Hempel >>> Cc: David Woodhouse >>> Cc: Daniel Schwierzeck >>> Cc: linux-mips@linux-mips.org >>> Cc: linux-mtd@lists.infradead.org >>> >> There are a couple checkpatch.pl warnings, would you please address them >> and resend? >> >> > Hi, > > of course. > > thanks, > John > > Hi, i fixed one of the warnings. the remaining warning wants me to put at least 4 lines into the help section in the Kconfig. However 3 lines were enough to explain what the driver does. John