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authorCatalin Marinas <catalin.marinas@arm.com>2010-07-01 13:21:47 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2010-07-02 10:10:09 +0100
commit2503a5ecd86c002506001eba432c524ea009fe7f (patch)
tree02f4646b29de1194154db5bd387298c222ffaf59 /arch/arm/mach-realview/Kconfig
parent00952d8f14447fccfb9560d98999f7489d4fd2df (diff)
downloadop-kernel-dev-2503a5ecd86c002506001eba432c524ea009fe7f.zip
op-kernel-dev-2503a5ecd86c002506001eba432c524ea009fe7f.tar.gz
ARM: 6201/1: RealView: Do not use outer_sync() on ARM11MPCore boards with L220
RealView boards with certain revisions of the L220 cache controller (ARM11* processors only) may have issues (hardware deadlock) with the recent changes to the mb() barrier implementation (DSB followed by an L2 cache sync). The patch redefines the RealView ARM11MPCore mandatory barriers without the outer_sync() call. Cc: <stable@kernel.org> Tested-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-realview/Kconfig')
-rw-r--r--arch/arm/mach-realview/Kconfig2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/mach-realview/Kconfig b/arch/arm/mach-realview/Kconfig
index ee5e392..b4575ae 100644
--- a/arch/arm/mach-realview/Kconfig
+++ b/arch/arm/mach-realview/Kconfig
@@ -18,6 +18,7 @@ config REALVIEW_EB_ARM11MP
bool "Support ARM11MPCore tile"
depends on MACH_REALVIEW_EB
select CPU_V6
+ select ARCH_HAS_BARRIERS if SMP
help
Enable support for the ARM11MPCore tile on the Realview platform.
@@ -35,6 +36,7 @@ config MACH_REALVIEW_PB11MP
select CPU_V6
select ARM_GIC
select HAVE_PATA_PLATFORM
+ select ARCH_HAS_BARRIERS if SMP
help
Include support for the ARM(R) RealView MPCore Platform Baseboard.
PB11MPCore is a platform with an on-board ARM11MPCore and has
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