highbank: Unconditionally require l2x0 L2 cache controller support

If running in the Normal World on a TrustZone-enabled SoC, Linux
does not have complete control over the L2 cache controller
configuration.  The kernel cannot work reliably on such platforms
without the l2x0 cache support code built in.

This patch unconditionally enables l2x0 support for the Highbank
SoC.

Thanks to Rob Herring for this suggestion.  [1]

[1] http://lists.infradead.org/pipermail/linux-arm-kernel/2011-November/074495.html

Signed-off-by: Dave Martin <dave.martin@linaro.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index eca82f9..1792146 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -340,12 +340,12 @@ config ARCH_HIGHBANK
        select ARM_AMBA
        select ARM_GIC
        select ARM_TIMER_SP804
+       select CACHE_L2X0
        select CLKDEV_LOOKUP
        select CPU_V7
        select GENERIC_CLOCKEVENTS
        select HAVE_ARM_SCU
        select HAVE_SMP
-       select MIGHT_HAVE_CACHE_L2X0
        select USE_OF
        help
          Support for the Calxeda Highbank SoC based boards.