nb/intel/x4x/raminit: Add DDR3 enhanced mode and power settings

Change-Id: I9d34154d3ac1dd1e5400d692d4dcce70d95662c8
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/19917
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
diff --git a/src/northbridge/intel/x4x/x4x.h b/src/northbridge/intel/x4x/x4x.h
index 34979a0..13ca783 100644
--- a/src/northbridge/intel/x4x/x4x.h
+++ b/src/northbridge/intel/x4x/x4x.h
@@ -392,6 +392,9 @@
 extern const struct dll_setting default_ddr3_1067_dq[2][TOTAL_BYTELANES];
 extern const struct dll_setting default_ddr3_1333_dq[2][TOTAL_BYTELANES];
 extern const u8 ddr3_emrs1_rtt_nom_config[16][4];
+extern const u32 ddr3_c2_tab[2][3][6][2];
+extern const u8 ddr3_c2_x264[3][6];
+extern const u16 ddr3_c2_x23c[3][6];
 
 struct acpi_rsdp;
 #ifndef __SIMPLE_DEVICE__