2 files changed, 5 insertions, 0 deletions

diff --git a/arch/arm/plat-orion/addr-map.c b/arch/arm/plat-orion/addr-map.c
index a7b8060c293a..febe3862873c 100644
--- a/arch/arm/plat-orion/addr-map.c
+++ b/arch/arm/plat-orion/addr-map.c
@@ -42,6 +42,8 @@ EXPORT_SYMBOL_GPL(mv_mbus_dram_info);
 #define WIN_REMAP_LO_OFF        0x0008
 #define WIN_REMAP_HI_OFF        0x000c
 
+#define ATTR_HW_COHERENCY       (0x1 << 4)
+
 /*
  * Default implementation
  */
@@ -163,6 +165,8 @@ void __init orion_setup_cpu_mbus_target(const struct orion_addr_map_cfg *cfg,
                         w = &orion_mbus_dram_info.cs[cs++];
                         w->cs_index = i;
                         w->mbus_attr = 0xf & ~(1 << i);
+                        if (cfg->hw_io_coherency)
+                                w->mbus_attr |= ATTR_HW_COHERENCY;
                         w->base = base & 0xffff0000;
                         w->size = (size | 0x0000ffff) + 1;
                 }
diff --git a/arch/arm/plat-orion/include/plat/addr-map.h b/arch/arm/plat-orion/include/plat/addr-map.h
index ec63e4a627d0..b76c06569fe5 100644
--- a/arch/arm/plat-orion/include/plat/addr-map.h
+++ b/arch/arm/plat-orion/include/plat/addr-map.h
@@ -17,6 +17,7 @@ struct orion_addr_map_cfg {
         const int num_wins;     /* Total number of windows */
         const int remappable_wins;
         void __iomem *bridge_virt_base;
+        int hw_io_coherency;
 
         /* If NULL, the default cpu_win_can_remap will be used, using
            the value in remappable_wins */