diff --git a/src/northbridge/intel/haswell/raminit.h b/src/northbridge/intel/haswell/raminit.h
index adf53ea..ee0af77 100644
--- a/src/northbridge/intel/haswell/raminit.h
+++ b/src/northbridge/intel/haswell/raminit.h
@@ -6,15 +6,16 @@
 #include <stdint.h>
 #include "pei_data.h"
 
+/* Mainboard-specific USB configuration */
+extern const struct usb2_port_setting mainboard_usb2_ports[MAX_USB2_PORTS];
+extern const struct usb3_port_setting mainboard_usb3_ports[MAX_USB3_PORTS];
+
 /* Optional function to copy SPD data for on-board memory */
 void copy_spd(struct pei_data *peid);
 
 /* Mainboard callback to fill in the SPD addresses in MRC format */
 void mb_get_spd_map(uint8_t spd_map[4]);
 
-/* Necessary function to initialize pei_data with mainboard-specific settings */
-void mainboard_fill_pei_data(struct pei_data *pei_data);
-
 void sdram_initialize(struct pei_data *pei_data);
 void setup_sdram_meminfo(struct pei_data *pei_data);
 int fixup_haswell_errata(void);