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| author | Dave Martin <dave.martin@linaro.org> | 2011-11-29 15:56:19 +0000 |
|---|---|---|
| committer | Dave Martin <dave.martin@linaro.org> | 2011-12-19 13:46:11 +0000 |
| commit | ce5ea9f3767e8589521319cae2eb6e05c52bd056 (patch) | |
| tree | 29e08e74c3ecd3a6b8a4875d3e631b17ff456fef /arch/arm/mach-vexpress | |
| parent | caca6a03d365883564885f2c1da3e88dcf65d139 (diff) | |
| download | blackbird-op-linux-ce5ea9f3767e8589521319cae2eb6e05c52bd056.tar.gz blackbird-op-linux-ce5ea9f3767e8589521319cae2eb6e05c52bd056.zip | |
ARM: l2x0/pl310: Refactor Kconfig to be more maintainable
Making CACHE_L2X0 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 have a L2x0 or
PL310 cache controller to the individual machines. To enable this,
a new MIGHT_HAVE_CACHE_L2X0 config option is introduced to allow
machines to indicate that they may have such a cache controller
independently of each other.
Boards/SoCs which cannot reliably operate without the L2 cache
controller support will need to select CACHE_L2X0 directly from
their own Kconfigs instead. This applies to some TrustZone-enabled
boards where Linux runs in the Normal World, for example.
Signed-off-by: Dave Martin <dave.martin@linaro.org>
Acked-by: Anton Vorontsov <cbouatmailru@gmail.com>
(for cns3xxx)
Acked-by: Tony Lindgren <tony@atomide.com>
(for omap)
Acked-by: Shawn Guo <shawn.guo@linaro.org>
(for imx)
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)
Diffstat (limited to 'arch/arm/mach-vexpress')
| -rw-r--r-- | arch/arm/mach-vexpress/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/mach-vexpress/Kconfig b/arch/arm/mach-vexpress/Kconfig index 931148487f0b..a8aefc8a6f24 100644 --- a/arch/arm/mach-vexpress/Kconfig +++ b/arch/arm/mach-vexpress/Kconfig @@ -8,5 +8,6 @@ config ARCH_VEXPRESS_CA9X4 select ARM_ERRATA_720789 select ARM_ERRATA_751472 select ARM_ERRATA_753970 + select MIGHT_HAVE_CACHE_L2X0 endmenu |
