arm: u8500: Prefer building in thumb mode by default

Enabling CONFIG_SYS_THUMB_BUILD produces a significantly smaller
U-Boot binary (250 KiB vs 320 KiB) that still seems to be fully
functional. Make use of that by default but keep it as "imply" so it
can be disabled for testing in case this causes trouble for someone.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 18fcc7a..c815ad4 100644 (file)
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1062,6 +1062,7 @@ config ARCH_U8500
        imply PL01X_SERIAL
        imply PMIC_AB8500
        imply RTC_PL031
+       imply SYS_THUMB_BUILD
        imply SYSRESET_SYSCON
 
 config ARCH_VERSAL