From mboxrd@z Thu Jan 1 00:00:00 1970 From: arnd@arndb.de (Arnd Bergmann) Date: Tue, 02 Feb 2016 17:04:56 +0100 Subject: [PATCH 04/11] arm64: Introduce Allwinner SoC config option In-Reply-To: <56B0CBA8.3020804@arm.com> References: <1454348370-3816-1-git-send-email-andre.przywara@arm.com> <56B0C95B.4040500@gmail.com> <56B0CBA8.3020804@arm.com> Message-ID: <6587581.Opm4UCG8SA@wuerfel> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tuesday 02 February 2016 15:30:48 Andre Przywara wrote: > Hi, > > On 02/02/16 15:20, Matthias Brugger wrote: > > > > > > 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. > > Yeah, could be. It's just that all boards I know of so far have either > SD card or eMMC. > Maybe it's better put in defconfig. Yes, definitely. The current patch also causes a Kconfig warning when a user disables CONFIG_MMC, as that a dependency for MMC_SUNXI. There are tons of other options that users need to select to have a usable system, no need to treat this one special. Arnd