invalidating the memory area that is being executed
while icache is on is a bit adventurous,
make sure it's turned off during this operation
Signed-off-by: Stefan Kristiansson <stefan.kristians...@saunalahti.fi>
---
arch/openrisc/cpu/cache.c | 4 ++++
1 files changed, 4 insertions(+), 0 deletions(-)
diff --git a/arch/openrisc/cpu/cache.c b/arch/openrisc/cpu/cache.c
index 2a73a4f..fedfd89 100644
--- a/arch/openrisc/cpu/cache.c
+++ b/arch/openrisc/cpu/cache.c
@@ -44,11 +44,15 @@ void invalidate_dcache_range(unsigned long addr, unsigned
long stop)
static void invalidate_icache_range(unsigned long addr, unsigned long stop)
{
ulong block_size = (mfspr(SPR_ICCFGR) & SPR_ICCFGR_CBS) ? 32 : 16;
+ ulong ie = icache_status();
+ icache_disable();
while (addr < stop) {
mtspr(SPR_ICBIR, addr);
addr += block_size;
}
+ if (ie)
+ icache_enable();
}
void flush_cache(unsigned long addr, unsigned long size)
--
1.7.5.4
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