[PATCH v2 1/5] ARM: omap4: Correct definition of do_wfi() for CONFIG_THUMB2_KERNEL
Dave Martin
dave.martin at linaro.org
Thu Feb 3 13:02:37 EST 2011
For the Thumb-2 case, the "wfi" mnemonic is used, since in this
case the tools will necessarily be new enough to support it.
Signed-off-by: Dave Martin <dave.martin at linaro.org>
---
arch/arm/mach-omap2/include/mach/omap4-common.h | 5 +++++
1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-omap2/include/mach/omap4-common.h b/arch/arm/mach-omap2/include/mach/omap4-common.h
index 5b0270b..68ce058 100644
--- a/arch/arm/mach-omap2/include/mach/omap4-common.h
+++ b/arch/arm/mach-omap2/include/mach/omap4-common.h
@@ -17,8 +17,13 @@
* wfi used in low power code. Directly opcode is used instead
* of instruction to avoid mulit-omap build break
*/
+#ifdef CONFIG_THUMB2_KERNEL
+#define do_wfi() \
+ __asm__ __volatile__ ("wfi" : : : "memory")
+#else
#define do_wfi() \
__asm__ __volatile__ (".word 0xe320f003" : : : "memory")
+#endif
#ifdef CONFIG_CACHE_L2X0
extern void __iomem *l2cache_base;
--
1.7.1
More information about the linux-arm-kernel
mailing list