diff --git a/boards/atxmega-a1u-xpro/Makefile.include b/boards/atxmega-a1u-xpro/Makefile.include
index f5bff7abc8..32baf45835 100644
--- a/boards/atxmega-a1u-xpro/Makefile.include
+++ b/boards/atxmega-a1u-xpro/Makefile.include
@@ -1,4 +1,7 @@
 AVRDUDE_PROGRAMMER = xplainedpro_pdi
 DEBUGPROTO = -X
 
+override RAM_LEN = 65536
+override EXP_RAM = 1
+
 include $(RIOTBOARD)/common/atxmega/Makefile.include
diff --git a/boards/atxmega-a1u-xpro/include/periph_conf.h b/boards/atxmega-a1u-xpro/include/periph_conf.h
index 68926e4269..e1664265ee 100644
--- a/boards/atxmega-a1u-xpro/include/periph_conf.h
+++ b/boards/atxmega-a1u-xpro/include/periph_conf.h
@@ -138,7 +138,33 @@ static const spi_conf_t spi_config[] = {
  * @{
  */
 static const ebi_conf_t ebi_config = {
-    0
+    .addr_bits              = 18, /* A0-A17 */
+    .flags                  = (EBI_PORT_LPC | EBI_PORT_CS2),
+    .sram_ale               = 0,
+    .lpc_ale                = 2,
+    .sdram                  = { 0 },
+    .cs                     = {    /* Reserved A16      */
+                                { EBI_CS_MODE_DISABLED_gc,
+                                  0,
+                                  EBI_CS_SRWS_0CLK_gc,
+                                  0x0UL,
+                                }, /* Reserved A17      */
+                                { EBI_CS_MODE_DISABLED_gc,
+                                  0,
+                                  EBI_CS_SRWS_0CLK_gc,
+                                  0x0UL,
+                                }, /* CS2 - 256K SRAM   */
+                                { EBI_CS_MODE_LPC_gc,
+                                  EBI_CS_ASPACE_256KB_gc,
+                                  EBI_CS_SRWS_1CLK_gc,
+                                  0x0UL,
+                                }, /* Reserved LCD      */
+                                { EBI_CS_MODE_DISABLED_gc,
+                                  0,
+                                  EBI_CS_SRWS_0CLK_gc,
+                                  0x0UL,
+                                },
+                              },
 };
 /** @} */