diff --git a/include/grub/mips/loongson.h b/include/grub/mips/loongson.h
index 09b788db2..6cb1178d5 100644
--- a/include/grub/mips/loongson.h
+++ b/include/grub/mips/loongson.h
@@ -64,7 +64,7 @@
 #define GRUB_CPU_LOONGSON_D_CACHE_LOG_WAYS 2
 #define GRUB_CPU_LOONGSON_S_CACHE_LOG_WAYS 2
 
-/* Fixme: determine dynamically.  */
+/* FIXME: determine dynamically.  */
 #define GRUB_CPU_LOONGSON_SECONDARY_CACHE_LOG_SIZE 19
 
 #define GRUB_CPU_LOONGSON_COP0_BADVADDR GRUB_CPU_REGISTER_WRAP($8)
@@ -81,6 +81,9 @@
 #define GRUB_CPU_LOONGSON_CORECFG_DISABLE_DDR2_SPACE 0x100
 #define GRUB_CPU_LOONGSON_CORECFG_BUFFER_CPU 0x200
 
+#define GRUB_CPU_LOONGSON_PCI_HIT1_SEL_LO   0xbfe00150
+#define GRUB_CPU_LOONGSON_PCI_HIT1_SEL_HI   0xbfe00154
+
 #define GRUB_CPU_LOONGSON_GPIOCFG  0xbfe00120
 #define GRUB_CPU_LOONGSON_SHUTDOWN_GPIO 1