diff --git a/src/northbridge/intel/e7505/raminit.h b/src/northbridge/intel/e7505/raminit.h
new file mode 100644
index 0000000..1e0128c
--- /dev/null
+++ b/src/northbridge/intel/e7505/raminit.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef RAMINIT_H
+#define RAMINIT_H
+
+#include <stdint.h>
+
+#define MAX_DIMM_SOCKETS_PER_CHANNEL 4
+#define MAX_NUM_CHANNELS 2
+#define MAX_DIMM_SOCKETS (MAX_NUM_CHANNELS * MAX_DIMM_SOCKETS_PER_CHANNEL)
+
+struct mem_controller {
+	pci_devfn_t d0, d0f1; // PCI bus/device/fcns of E7501 memory controller
+
+	// SMBus addresses of DIMM slots for each channel,
+	// in order from closest to MCH to furthest away
+	// 0 == not present
+	uint16_t channel0[MAX_DIMM_SOCKETS_PER_CHANNEL];
+	uint16_t channel1[MAX_DIMM_SOCKETS_PER_CHANNEL];
+};
+
+void sdram_initialize(void);
+
+#endif /* RAMINIT_H */