[PATCH 04/11] arm64: Introduce Allwinner SoC config option

On 01/02/16 18:39, Andre Przywara wrote:

To prepare for the Allwinner A64 SoC support, introduce a config
option to allow compiling Allwinner (aka. sunxi) specific drivers
for the arm64 architecture as well.
This patch just defines the ARCH_SUNXI symbol to allow Allwinner
specific drivers to be selected during kernel configuration.
Since the MMC driver is quite essential for Linux to be useful, select
it by default.

This mostly depends on the board you have. The rootfs could be on the 
flash, on nfs or even on a usb stick.

I don't see why MMC support should be essential for A64 SoC.

Regards,
Matthias