ARM: let CPUs not being able to run in ARM mode enter in THUMB mode

Some ARM cores are not capable to run in ARM mode (e.g. Cortex-M3). So
obviously these cannot enter the kernel in ARM mode. Make an exception
for them and let them enter in THUMB mode.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Message-Id: 1358162123-30113-1-git-send-email-u.kleine-koenig@pengutronix.de
Acked-by: Nicolas Pitre <nico@linaro.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 67874b82a4ed..e04c7793f47e 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1656,8 +1656,9 @@ config HZ
         default 100
 
 config THUMB2_KERNEL
-        bool "Compile the kernel in Thumb-2 mode"
+        bool "Compile the kernel in Thumb-2 mode" if !CPU_THUMBONLY
         depends on CPU_V7 && !CPU_V6 && !CPU_V6K
+        default y if CPU_THUMBONLY
         select AEABI
         select ARM_ASM_UNIFIED
         select ARM_UNWIND