1 files changed, 12 insertions, 3 deletions

diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index 9982eb385c0..edb43ff7aee 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -29,13 +29,22 @@ static void __iomem *l2x0_base;
 static DEFINE_SPINLOCK(l2x0_lock);
 static uint32_t l2x0_way_mask;  /* Bitmask of active ways */
 
-static inline void cache_wait(void __iomem *reg, unsigned long mask)
+static inline void cache_wait_way(void __iomem *reg, unsigned long mask)
 {
-        /* wait for the operation to complete */
+        /* wait for cache operation by line or way to complete */
         while (readl_relaxed(reg) & mask)
                 ;
 }
 
+#ifdef CONFIG_CACHE_PL310
+static inline void cache_wait(void __iomem *reg, unsigned long mask)
+{
+        /* cache operations by line are atomic on PL310 */
+}
+#else
+#define cache_wait      cache_wait_way
+#endif
+
 static inline void cache_sync(void)
 {
         void __iomem *base = l2x0_base;
@@ -110,7 +119,7 @@ static inline void l2x0_inv_all(void)
         /* invalidate all ways */
         spin_lock_irqsave(&l2x0_lock, flags);
         writel_relaxed(l2x0_way_mask, l2x0_base + L2X0_INV_WAY);
-        cache_wait(l2x0_base + L2X0_INV_WAY, l2x0_way_mask);
+        cache_wait_way(l2x0_base + L2X0_INV_WAY, l2x0_way_mask);
         cache_sync();
         spin_unlock_irqrestore(&l2x0_lock, flags);
 }