armv7m: disable icache before linux booting

Similarly to ARMV7, on ARMV7M instruction cache memory needs
to be disabled before running linux kernel to avoid kernel to
be stuck.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>

diff --git a/arch/arm/cpu/armv7m/cpu.c b/arch/arm/cpu/armv7m/cpu.c
index a424babde547042bbb97958cd8ca2ff50cef4e13..29597750f8bec11d49ac583f4f9ed013949277db 100644 (file)
--- a/arch/arm/cpu/armv7m/cpu.c
+++ b/arch/arm/cpu/armv7m/cpu.c
@@ -37,6 +37,9 @@ int cleanup_before_linux(void)
         * dcache flushing and disabling dcache */
        invalidate_dcache_all();
 
+       icache_disable();
+       invalidate_icache_all();
+
        return 0;
 }