From: Arnd Bergmann <arnd.bergmann@linaro.org>
To: Hein Tibosch <hein_tibosch@yahoo.es>
Cc: viresh kumar <viresh.kumar@linaro.org>,
"spear-devel" <spear-devel@list.st.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
"ludovic.desroches" <ludovic.desroches@atmel.com>,
Havard Skinnemoen <havard@skinnemoen.net>,
Nicolas Ferre <nicolas.ferre@atmel.com>,
"Hans-Christian Egtvedt" <egtvedt@samfundet.no>,
Andrew Morton <akpm@linux-foundation.org>
Subject: Re: [PATCH v2 1/2] dw_dmac: make driver endianness configurable
Date: Thu, 30 Aug 2012 19:57:09 +0000 [thread overview]
Message-ID: <201208301957.09493.arnd.bergmann@linaro.org> (raw)
In-Reply-To: <503FA259.3090602@yahoo.es>
On Thursday 30 August 2012, Hein Tibosch wrote:
> The dw_dmac was originally developed for avr32 to be used with the
> Synopsys DesignWare AHB DMA controller. After 2.6.38, device access was done
> with the little-endian readl/writel functions. This didn't work on the
> avr32 platform, because it needs native-endian (i.e. big-endian) accessors.
> This patch makes the endianness configurable using 'DW_DMAC_BIG_ENDIAN_IO',
> which will default be true for AVR32
>
>
> Signed-off-by: Hein Tibosch <hein_tibosch@yahoo.es>
Acked-by: Arnd Bergmann <arnd.bergmann@linaro.org>
prev parent reply other threads:[~2012-08-30 19:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-08-30 17:26 [PATCH v2 1/2] dw_dmac: make driver endianness configurable Hein Tibosch
2012-08-30 19:57 ` Arnd Bergmann [this message]
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