Subject: [PATCH 5/5] ARM: sunxi: enable big-endian

From: [email-masked] (Maxime Ripard)
Date: Mon, 22 Aug 2016 09:57:41 +0200

Hi Michael,

On Tue, Aug 02, 2016 at 09:31:15PM +0200, Michael Weiser wrote:
> With previous fixes to stmmac, sun4i-emac and sun4i-mmc at least the
> Cubieboard2 incarnation of sunxi works correctly in big-endian mode.
> Allow the selection of big-endian.
> 
> Tested using a Cubieboard Two-Card and the following
> hardware-components:
> - GMAC (stmmac)
> - EMAC (sun4i-emac)
> - SATA
> - SPI
> - UART
> - security system
> - touchscreen controller hwmon functionality
> - pinctrl (custom interrupt for SPI ethernet controller)
> - watchdog as reset controller
> - onboard RTC
> - DS1307 I2C RTC
> - sound codec and with this indirectly the DMA engine

Thanks for all the testing, it's really appreciated :)

> Signed-off-by: Michael Weiser <[email-masked]>
> Cc: Maxime Ripard <[email-masked]>
> Cc: Chen-Yu Tsai <[email-masked]>
> Cc: linux-arm-kernel at lists.infradead.org
> ---
>  arch/arm/mach-sunxi/Kconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm/mach-sunxi/Kconfig b/arch/arm/mach-sunxi/Kconfig
> index 096ed21..cdeba4a 100644
> --- a/arch/arm/mach-sunxi/Kconfig
> +++ b/arch/arm/mach-sunxi/Kconfig
> @@ -1,6 +1,7 @@
>  menuconfig ARCH_SUNXI
>  	bool "Allwinner SoCs"
>  	depends on ARCH_MULTI_V7
> +	select ARCH_SUPPORTS_BIG_ENDIAN

However, you only tested it on the A20. I'd like to be conservative on
this one and only enable it on tested platforms. In this case, that
would mean to only select it for MACH_SUN7I.

Thanks!
Maxime

-- 
Maxime Ripard, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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