From c6201553ba73616eed0f416f66d28c39691692bd Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Fri, 6 Apr 2012 03:25:06 +0000 Subject: [PATCH] ARM926EJS: Make asm routines volatile in cache ops We certainly don't want the compiler to reorganise the code for dcache flushing. Signed-off-by: Marek Vasut Cc: Stefano Babic Cc: Albert ARIBAUD Acked-by: Mike Frysinger Acked-by: Stefano Babic --- arch/arm/cpu/arm926ejs/cache.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/cpu/arm926ejs/cache.c b/arch/arm/cpu/arm926ejs/cache.c index 4430578..07f036f 100644 --- a/arch/arm/cpu/arm926ejs/cache.c +++ b/arch/arm/cpu/arm926ejs/cache.c @@ -82,7 +82,7 @@ void flush_dcache_range(unsigned long start, unsigned long stop) start += CONFIG_SYS_CACHELINE_SIZE; } - asm("mcr p15, 0, %0, c7, c10, 4\n"::"r"(0)); + asm volatile("mcr p15, 0, %0, c7, c10, 4\n"::"r"(0)); } void flush_cache(unsigned long start, unsigned long size)