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Message-ID: <5461819.J0QLFmC4Wg@wuerfel>
Date: Fri, 08 May 2015 10:19:06 +0200
From: Arnd Bergmann <arnd@...db.de>
To: Brian Norris <computersforpeace@...il.com>
Cc: Ray Jui <rjui@...adcom.com>, linux-mtd@...ts.infradead.org,
Dmitry Torokhov <dtor@...gle.com>,
Anatol Pomazao <anatol@...gle.com>,
Corneliu Doban <cdoban@...adcom.com>,
Jonathan Richardson <jonathar@...adcom.com>,
Scott Branden <sbranden@...adcom.com>,
Florian Fainelli <f.fainelli@...il.com>,
Rafał Miłecki <zajec5@...il.com>,
bcm-kernel-feedback-list@...adcom.com,
Dan Ehrenberg <dehrenberg@...omium.org>,
Gregory Fong <gregory.0xf0@...il.com>,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Kevin Cernekee <cernekee@...il.com>
Subject: Re: [PATCH v3 03/10] mtd: nand: add NAND driver for Broadcom STB NAND controller
On Thursday 07 May 2015 19:01:13 Brian Norris wrote:
>
> Would this satisfy you?
>
> From: Brian Norris <computersforpeace@...il.com>
> Date: Tue, 5 May 2015 17:46:42 -0700
> Subject: [PATCH] mtd: brcmstb_nand: fixup endianness assumptions
>
> All users of this controller (MIPS or ARM) have previously used native
> I/O (__raw{read,write}l()) to access registers. This is normal for the
> MIPS case, where BMIPS chips often have a boot-strap that configures not
> only the CPU, but also all the busing, to use a given endianness.
> However, newer ARM cores support switching to big endian mode at
> runtime, which would leave us with different bus and CPU endianness. For
> these cases, we should use the endian-switching accessors, so we
> continue to access the NAND core in little endian mode.
>
> Suggested by Arnd.
>
> Signed-off-by: Brian Norris <computersforpeace@...il.com>
> ---
>
Yes, looks good, thanks!
Arnd
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