arm64: Introduce Allwinner SoC config option

To prepare for supporting the Allwinner A64 SoC, introduce a config
option to allow compiling Allwinner (aka. sunxi) specific drivers
for ARM64.
This patch just defines the ARCH_SUNXI symbol to allow Allwinner
specific drivers to be selected during kernel configuration.

Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>

diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index 21074f6..3f9d5ed 100644 (file)
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -1,5 +1,10 @@
 menu "Platform selection"
 
+config ARCH_SUNXI
+       bool "Allwinner sunxi 64-bit SoC Family"
+       help
+         This enables support for Allwinner sunxi based SoCs like the A64.
+
 config ARCH_BCM_IPROC
        bool "Broadcom iProc SoC Family"
        help