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authorAlbert ARIBAUD <albert.u.boot@aribaud.net>2015-10-23 18:06:40 +0200
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2015-11-10 15:03:48 +0100
commit62e92077a8936e60087d55683538ee386cc673aa (patch)
tree98bf9f9796ab466ad1bff97c7672d5c3159526d3 /arch/arm/include/asm/cache.h
parentbf104ffa2594e5bf14ef2d5ac2711084c763ef77 (diff)
downloadtalos-obmc-uboot-62e92077a8936e60087d55683538ee386cc673aa.tar.gz
talos-obmc-uboot-62e92077a8936e60087d55683538ee386cc673aa.zip
arm: support Thumb-1 with CONFIG_SYS_THUMB_BUILD
When building a Thumb-1-only target with CONFIG_SYS_THUMB_BUILD, some files fail to build, most of the time because they include mcr instructions, which only exist for Thumb-2. This patch introduces a Kconfig option CONFIG_THUMB2 and uses it to select between Thumb-2 and ARM mode for the aforementioned files. Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Diffstat (limited to 'arch/arm/include/asm/cache.h')
-rw-r--r--arch/arm/include/asm/cache.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/arm/include/asm/cache.h b/arch/arm/include/asm/cache.h
index a836e9f2ab..1f63127bdc 100644
--- a/arch/arm/include/asm/cache.h
+++ b/arch/arm/include/asm/cache.h
@@ -16,6 +16,9 @@
/*
* Invalidate L2 Cache using co-proc instruction
*/
+#ifdef CONFIG_SYS_THUMB_BUILD
+void invalidate_l2_cache(void);
+#else
static inline void invalidate_l2_cache(void)
{
unsigned int val=0;
@@ -24,6 +27,7 @@ static inline void invalidate_l2_cache(void)
: : "r" (val) : "cc");
isb();
}
+#endif
void l2_cache_enable(void);
void l2_cache_disable(void);
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