ARM: SMP: Refactor Kconfig to be more maintainable

Making SMP depend on (huge list of MACH_ and ARCH_ configs) is
bothersome to maintain and likely to lead to merge conflicts.

This patch moves the knowledge of which platforms are SMP-capable
to the individual machines.  To enable this, a new HAVE_SMP config
option is introduced to allow machines to indicate that they can
run in a SMP configuration.

Signed-off-by: Dave Martin <dave.martin@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
        (for nomadik, ux500)
Acked-by: Tony Lindgren <tony@atomide.com>
        (for omap)
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
        (for exynos)
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
        (for imx)
Acked-by: Olof Johansson <olof@lixom.net>
        (for tegra)

1 files changed, 4 insertions, 0 deletions

diff --git a/arch/arm/mach-realview/Kconfig b/arch/arm/mach-realview/Kconfig
index 3dd620f8dd9b..c593be428b8f 100644
--- a/arch/arm/mach-realview/Kconfig
+++ b/arch/arm/mach-realview/Kconfig
@@ -12,6 +12,7 @@ config REALVIEW_EB_A9MP
         bool "Support Multicore Cortex-A9 Tile"
         depends on MACH_REALVIEW_EB
         select CPU_V7
+        select HAVE_SMP
         select MIGHT_HAVE_CACHE_L2X0
         help
           Enable support for the Cortex-A9MPCore tile fitted to the
@@ -22,6 +23,7 @@ config REALVIEW_EB_ARM11MP
         depends on MACH_REALVIEW_EB
         select CPU_V6K
         select ARCH_HAS_BARRIERS if SMP
+        select HAVE_SMP
         select MIGHT_HAVE_CACHE_L2X0
         help
           Enable support for the ARM11MPCore tile fitted to the Realview(R)
@@ -41,6 +43,7 @@ config MACH_REALVIEW_PB11MP
         select CPU_V6K
         select ARM_GIC
         select HAVE_PATA_PLATFORM
+        select HAVE_SMP
         select MIGHT_HAVE_CACHE_L2X0
         select ARCH_HAS_BARRIERS if SMP
         help
@@ -82,6 +85,7 @@ config MACH_REALVIEW_PBX
         bool "Support RealView(R) Platform Baseboard Explore"
         select ARM_GIC
         select HAVE_PATA_PLATFORM
+        select HAVE_SMP
         select MIGHT_HAVE_CACHE_L2X0
         select ARCH_SPARSEMEM_ENABLE if CPU_V7 && !REALVIEW_HIGH_PHYS_OFFSET
         select ZONE_DMA if SPARSEMEM