diff --git a/include/configs/qemu-mips.h b/include/configs/qemu-mips.h
index a7cd003..702967c 100644
--- a/include/configs/qemu-mips.h
+++ b/include/configs/qemu-mips.h
@@ -58,6 +58,10 @@
 #define CONFIG_CMD_IDE
 #define CONFIG_DOS_PARTITION
 
+#ifdef CONFIG_SYS_BIG_ENDIAN
+#define CONFIG_IDE_SWAP_IO
+#endif
+
 #define CONFIG_SYS_IDE_MAXBUS		2
 #define CONFIG_SYS_ATA_IDE0_OFFSET	0x1f0
 #define CONFIG_SYS_ATA_IDE1_OFFSET	0x170
diff --git a/include/configs/qemu-mips64.h b/include/configs/qemu-mips64.h
index 394382c..2394549 100644
--- a/include/configs/qemu-mips64.h
+++ b/include/configs/qemu-mips64.h
@@ -58,6 +58,10 @@
 #define CONFIG_CMD_IDE
 #define CONFIG_DOS_PARTITION
 
+#ifdef CONFIG_SYS_BIG_ENDIAN
+#define CONFIG_IDE_SWAP_IO
+#endif
+
 #define CONFIG_SYS_IDE_MAXBUS		2
 #define CONFIG_SYS_ATA_IDE0_OFFSET	0x1f0
 #define CONFIG_SYS_ATA_IDE1_OFFSET	0x170