[Blackfin] arch: Fix bug - kernel build with Debug option enabled fails to boot up

writes to I/DMEM_CONTROL must be followed by SSYNC

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/blackfin/kernel/cplb-nompu/cacheinit.c b/arch/blackfin/kernel/cplb-nompu/cacheinit.c
index 62cbba7364b..8a18399f607 100644
--- a/arch/blackfin/kernel/cplb-nompu/cacheinit.c
+++ b/arch/blackfin/kernel/cplb-nompu/cacheinit.c
@@ -42,6 +42,7 @@ void bfin_icache_init(void)
         ctrl = bfin_read_IMEM_CONTROL();
         ctrl |= IMC | ENICPLB;
         bfin_write_IMEM_CONTROL(ctrl);
+        SSYNC();
 }
 #endif
 
@@ -63,5 +64,6 @@ void bfin_dcache_init(void)
         ctrl = bfin_read_DMEM_CONTROL();
         ctrl |= DMEM_CNTR;
         bfin_write_DMEM_CONTROL(ctrl);
+        SSYNC();
 }
 #endif