ARM: l2x0/pl310: Refactor Kconfig to be more maintainable

[karo-tx-linux.git] / arch / arm / mm / Kconfig

diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig
index 67f75a0b66d640c4ffdd44b74fc2ac37e8b0063d..acb1c36adaddd37dbf54b4fbdb40ac35f867b16e 100644 (file)
--- a/arch/arm/mm/Kconfig
+++ b/arch/arm/mm/Kconfig
@@ -816,14 +816,23 @@ config CACHE_FEROCEON_L2_WRITETHROUGH
          Say Y here to use the Feroceon L2 cache in writethrough mode.
          Unless you specifically require this, say N for writeback mode.
 
+config MIGHT_HAVE_CACHE_L2X0
+       bool
+       help
+         This option should be selected by machines which have a L2x0
+         or PL310 cache controller, but where its use is optional.
+
+         The only effect of this option is to make CACHE_L2X0 and
+         related options available to the user for configuration.
+
+         Boards or SoCs which always require the cache controller
+         support to be present should select CACHE_L2X0 directly
+         instead of this option, thus preventing the user from
+         inadvertently configuring a broken kernel.
+
 config CACHE_L2X0
-       bool "Enable the L2x0 outer cache controller"
-       depends on REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || MACH_REALVIEW_PB1176 || \
-                  REALVIEW_EB_A9MP || ARCH_IMX_V6_V7 || MACH_REALVIEW_PBX || \
-                  ARCH_NOMADIK || ARCH_OMAP4 || ARCH_EXYNOS4 || ARCH_TEGRA || \
-                  ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || ARCH_SHMOBILE || \
-                  ARCH_PRIMA2 || ARCH_ZYNQ || ARCH_CNS3XXX || ARCH_HIGHBANK
-       default y
+       bool "Enable the L2x0 outer cache controller" if MIGHT_HAVE_CACHE_L2X0
+       default MIGHT_HAVE_CACHE_L2X0
        select OUTER_CACHE
        select OUTER_CACHE_SYNC
        help