ARM: introduce sync_caches_for_execution

We have several places in the code which which prepares just modified code
for execution. This is done differently in all the places, so add a common
function to be used by all.

Most places called arm_early_mmu_cache_flush(). This function includes
invalidating the instruction cache, so doing it again is unnecessary.

Sometimes we had arm_early_mmu_cache_flush() inside #ifdef CONFIG_MMU.
The ifdef seems unnecessary since we do not have it consistently, so
remove the ifdef.

Some early i.MX xload code had icache_invalidate() but forgot to flush
the caches. Replace the instruction cache invalidation with
sync_caches_for_execution().

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/mci/imx-esdhc-pbl.c b/drivers/mci/imx-esdhc-pbl.c
index 0251757a2a..367daa85a6 100644
--- a/drivers/mci/imx-esdhc-pbl.c
+++ b/drivers/mci/imx-esdhc-pbl.c
@@ -332,6 +332,8 @@ esdhc_start_image(struct esdhc *esdhc, ptrdiff_t address, ptrdiff_t entry, u32 o
 
 	bb = buf + ofs;
 
+	sync_caches_for_execution();
+
 	bb();
 }
 
@@ -458,7 +460,7 @@ int ls1046a_esdhc_start_image(unsigned long r0, unsigned long r1, unsigned long
 		return ret;
 	}
 
-	icache_invalidate();
+	sync_caches_for_execution();
 
 	printf("Starting barebox\n");