1 files changed, 13 insertions, 1 deletions

diff --git a/arch/arm/mach-tegra/sleep.h b/arch/arm/mach-tegra/sleep.h
index 98b7da698f2b..a4edbb3abd3d 100644
--- a/arch/arm/mach-tegra/sleep.h
+++ b/arch/arm/mach-tegra/sleep.h
@@ -41,7 +41,19 @@
 #define CPU_NOT_RESETTABLE      0
 #endif
 
+/* flag of tegra_disable_clean_inv_dcache to do LoUIS or all */
+#define TEGRA_FLUSH_CACHE_LOUIS 0
+#define TEGRA_FLUSH_CACHE_ALL   1
+
 #ifdef __ASSEMBLY__
+/* waits until the microsecond counter (base) is > rn */
+.macro wait_until, rn, base, tmp
+        add     \rn, \rn, #1
+1001:   ldr     \tmp, [\base]
+        cmp     \tmp, \rn
+        bmi     1001b
+.endm
+
 /* returns the offset of the flow controller halt register for a cpu */
 .macro cpu_to_halt_reg rd, rcpu
         cmp     \rcpu, #0
@@ -144,7 +156,7 @@ void tegra_pen_lock(void);
 void tegra_pen_unlock(void);
 void tegra_resume(void);
 int tegra_sleep_cpu_finish(unsigned long);
-void tegra_disable_clean_inv_dcache(void);
+void tegra_disable_clean_inv_dcache(u32 flag);
 
 #ifdef CONFIG_HOTPLUG_CPU
 void tegra20_hotplug_shutdown(void);