Blackfin arch: Load P0 before storing through it
Fortunately this function is only used on old 533 revisions.
Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
diff --git a/arch/blackfin/mach-common/cacheinit.S b/arch/blackfin/mach-common/cacheinit.S
index 9d47562..5be6b97 100644
--- a/arch/blackfin/mach-common/cacheinit.S
+++ b/arch/blackfin/mach-common/cacheinit.S
@@ -60,6 +60,9 @@
#if defined(CONFIG_BLKFIN_DCACHE)
ENTRY(_bfin_write_DMEM_CONTROL)
+ P0.l = (DMEM_CONTROL & 0xFFFF);
+ P0.h = (DMEM_CONTROL >> 16);
+
CLI R1;
SSYNC; /* SSYNC required before writing to DMEM_CONTROL. */
.align 8;