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-rw-r--r--include/phys2bus.h17
1 files changed, 17 insertions, 0 deletions
diff --git a/include/phys2bus.h b/include/phys2bus.h
index dc9b8e5a25..866b8b51a8 100644
--- a/include/phys2bus.h
+++ b/include/phys2bus.h
@@ -21,4 +21,21 @@ static inline unsigned long bus_to_phys(unsigned long bus)
}
#endif
+#if CONFIG_IS_ENABLED(DM)
+#include <dm/device.h>
+
+static inline dma_addr_t dev_phys_to_bus(struct udevice *dev, phys_addr_t phys)
+{
+ return phys - dev_get_dma_offset(dev);
+}
+
+static inline phys_addr_t dev_bus_to_phys(struct udevice *dev, dma_addr_t bus)
+{
+ return bus + dev_get_dma_offset(dev);
+}
+#else
+#define dev_phys_to_bus(_, _addr) _addr
+#define dev_bus_to_phys(_, _addr) _addr
+#endif
+
#endif