diff --git a/arch/loongarch/include/asm/cache.h b/arch/loongarch/include/asm/cache.h
index 1b6d0961719989b9352aa90d55578df21e256c8d..aa622c754414426c6c47e9daaa6ac7225f6d4978 100644
--- a/arch/loongarch/include/asm/cache.h
+++ b/arch/loongarch/include/asm/cache.h
@@ -8,6 +8,8 @@
 #define L1_CACHE_SHIFT		CONFIG_L1_CACHE_SHIFT
 #define L1_CACHE_BYTES		(1 << L1_CACHE_SHIFT)
 
+#define ARCH_DMA_MINALIGN	(16)
+
 #define __read_mostly __section(".data..read_mostly")
 
 #endif /* _ASM_CACHE_H */