+extern const struct dmm_lisa_map_regs lisa_map_2G_x_1_x_2;
+extern const struct dmm_lisa_map_regs lisa_map_2G_x_2_x_2;
+extern const struct dmm_lisa_map_regs ma_lisa_map_2G_x_2_x_2;
+#else
+extern const struct lpddr2_device_details elpida_2G_S4_details;
+extern const struct lpddr2_device_details elpida_4G_S4_details;
+#endif
+
+#ifdef CONFIG_SYS_DEFAULT_LPDDR2_TIMINGS
+extern const struct lpddr2_device_timings jedec_default_timings;
+#else
+extern const struct lpddr2_device_timings elpida_2G_S4_timings;
+#endif
+