1 files changed, 8 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/sleep44xx.S b/arch/arm/mach-omap2/sleep44xx.S
index 3154b63def35..abd283400490 100644
--- a/arch/arm/mach-omap2/sleep44xx.S
+++ b/arch/arm/mach-omap2/sleep44xx.S
@@ -325,8 +325,16 @@ skip_l2en:
 ENDPROC(omap4_cpu_resume)
 #endif
 
+#ifndef CONFIG_OMAP4_ERRATA_I688
+ENTRY(omap_bus_sync)
+        mov     pc, lr
+ENDPROC(omap_bus_sync)
+#endif
+
 ENTRY(omap_do_wfi)
         stmfd   sp!, {lr}
+        /* Drain interconnect write buffers. */
+        bl omap_bus_sync
 
         /*
          * Execute an ISB instruction to ensure that all of the