1 files changed, 22 insertions, 0 deletions

diff --git a/arch/arm/mm/cache-l2x0.c b/arch/arm/mm/cache-l2x0.c
index 262c7529bcdb..170c9bb95866 100644
--- a/arch/arm/mm/cache-l2x0.c
+++ b/arch/arm/mm/cache-l2x0.c
@@ -125,6 +125,18 @@ static void l2x0_flush_all(void)
         spin_unlock_irqrestore(&l2x0_lock, flags);
 }
 
+static void l2x0_clean_all(void)
+{
+        unsigned long flags;
+
+        /* clean all ways */
+        spin_lock_irqsave(&l2x0_lock, flags);
+        writel_relaxed(l2x0_way_mask, l2x0_base + L2X0_CLEAN_WAY);
+        cache_wait_way(l2x0_base + L2X0_CLEAN_WAY, l2x0_way_mask);
+        cache_sync();
+        spin_unlock_irqrestore(&l2x0_lock, flags);
+}
+
 static void l2x0_inv_all(void)
 {
         unsigned long flags;
@@ -183,6 +195,11 @@ static void l2x0_clean_range(unsigned long start, unsigned long end)
         void __iomem *base = l2x0_base;
         unsigned long flags;
 
+        if ((end - start) >= l2x0_size) {
+                l2x0_clean_all();
+                return;
+        }
+
         spin_lock_irqsave(&l2x0_lock, flags);
         start &= ~(CACHE_LINE_SIZE - 1);
         while (start < end) {
@@ -208,6 +225,11 @@ static void l2x0_flush_range(unsigned long start, unsigned long end)
         void __iomem *base = l2x0_base;
         unsigned long flags;
 
+        if ((end - start) >= l2x0_size) {
+                l2x0_flush_all();
+                return;
+        }
+
         spin_lock_irqsave(&l2x0_lock, flags);
         start &= ~(CACHE_LINE_SIZE - 1);
         while (start < end) {