ARM: Add base support for ARMv7-M

[deliverable/linux.git] / arch / arm / kernel / traps.c

diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 1c089119b2d7cd3f8d8847facc709e1a9078235b..ec64571462d25a9484df57ec608fc36f53d2bb43 100644 (file)
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -819,6 +819,7 @@ static void __init kuser_get_tls_init(unsigned long vectors)
 
 void __init early_trap_init(void *vectors_base)
 {
+#ifndef CONFIG_CPU_V7M
        unsigned long vectors = (unsigned long)vectors_base;
        extern char __stubs_start[], __stubs_end[];
        extern char __vectors_start[], __vectors_end[];
@@ -850,4 +851,11 @@ void __init early_trap_init(void *vectors_base)
 
        flush_icache_range(vectors, vectors + PAGE_SIZE);
        modify_domain(DOMAIN_USER, DOMAIN_CLIENT);
+#else /* ifndef CONFIG_CPU_V7M */
+       /*
+        * on V7-M there is no need to copy the vector table to a dedicated
+        * memory area. The address is configurable and so a table in the kernel
+        * image can be used.
+        */
+#endif
 }