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authorRussell King <rmk+kernel@arm.linux.org.uk>2013-05-19 02:22:53 +0200
committerRussell King <rmk+kernel@arm.linux.org.uk>2013-05-22 11:52:24 +0200
commitf150abe1012f2fc7d444d33d651db32435038c11 (patch)
treec42777a7237d97a32692ed41e174fbe92a32f69a /arch/arm/kernel/traps.c
parentMerge branch 'leds-fixes-3.10' of git://git.kernel.org/pub/scm/linux/kernel/g... (diff)
parentARM: ARMv7-M: implement read_cpuid_ext (diff)
downloadlinux-f150abe1012f2fc7d444d33d651db32435038c11.tar.xz
linux-f150abe1012f2fc7d444d33d651db32435038c11.zip
Merge branch 'for-next' of git://git.pengutronix.de/git/ukl/linux into devel-stable
Pull ARM-v7M support from Uwe Kleine-König: "All but the last patch were in next since next-20130418 without issues. The last patch fixes a problem in combination with 8164f7a (ARM: 7680/1: Detect support for SDIV/UDIV from ISAR0 register) which triggers a WARN_ON without an implemented read_cpuid_ext. The branch merges fine into v3.10-rc1 and I'd be happy if you pulled it for 3.11-rc1. The only missing piece to be able to run a Cortex-M3 is the irqchip driver that will go in via Thomas Gleixner and platform specific stuff."
Diffstat (limited to 'arch/arm/kernel/traps.c')
-rw-r--r--arch/arm/kernel/traps.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 18b32e8e4497..486e12a0f26a 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -812,6 +812,7 @@ 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[];
@@ -843,4 +844,11 @@ 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
}