haswell: Add function to retrieve SPD addresses

And use it instead of directly writing to the MRC struct.

Change-Id: I7f04db29a08512c1a8b2b2300dba71cb3b84a5c5
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43127
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tristan Corrick <tristan@corrick.kiwi>
diff --git a/src/northbridge/intel/haswell/raminit.h b/src/northbridge/intel/haswell/raminit.h
index 140ea20..adf53ea 100644
--- a/src/northbridge/intel/haswell/raminit.h
+++ b/src/northbridge/intel/haswell/raminit.h
@@ -3,11 +3,15 @@
 #ifndef RAMINIT_H
 #define RAMINIT_H
 
+#include <stdint.h>
 #include "pei_data.h"
 
 /* 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);