1 files changed, 14 insertions, 0 deletions
diff --git a/arch/mips/loongson64/lemote-2f/dma.c b/arch/mips/loongson64/lemote-2f/dma.c
new file mode 100644
index 000000000000..abf0e39d7e46
--- /dev/null
+++ b/arch/mips/loongson64/lemote-2f/dma.c
@@ -0,0 +1,14 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/dma-direct.h>
+
+dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t paddr)
+{
+	return paddr | 0x80000000;
+}
+
+phys_addr_t __dma_to_phys(struct device *dev, dma_addr_t dma_addr)
+{
+	if (dma_addr > 0x8fffffff)
+		return dma_addr;
+	return dma_addr & 0x0fffffff;
+}