[ARM] 5488/1: ARM errata: Invalidation of the Instruction Cache operation can fail

This patch implements the recommended workaround for erratum 411920
(ARM1136, ARM1156, ARM1176).

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 9 insertions, 0 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 99875dd06f50..e28a76bd1793 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -740,6 +740,15 @@ if !MMU
 source "arch/arm/Kconfig-nommu"
 endif
 
+config ARM_ERRATA_411920
+        bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
+        depends on CPU_V6 && !SMP
+        help
+          Invalidation of the Instruction Cache operation can
+          fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
+          It does not affect the MPCore. This option enables the ARM Ltd.
+          recommended workaround.
+
 endmenu
 
 source "arch/arm/common/Kconfig"