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diff --git a/src/occ_gpe1/gpe1_dimm.h b/src/occ_gpe1/gpe1_dimm.h
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+/* IBM_PROLOG_BEGIN_TAG */
+/* This is an automatically generated prolog. */
+/* */
+/* $Source: src/occ_405/gpe/gpe1_dimm.h $ */
+/* */
+/* OpenPOWER OnChipController Project */
+/* */
+/* Contributors Listed Below - COPYRIGHT 2011,2015 */
+/* [+] International Business Machines Corp. */
+/* */
+/* */
+/* Licensed under the Apache License, Version 2.0 (the "License"); */
+/* you may not use this file except in compliance with the License. */
+/* You may obtain a copy of the License at */
+/* */
+/* http://www.apache.org/licenses/LICENSE-2.0 */
+/* */
+/* Unless required by applicable law or agreed to in writing, software */
+/* distributed under the License is distributed on an "AS IS" BASIS, */
+/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
+/* implied. See the License for the specific language governing */
+/* permissions and limitations under the License. */
+/* */
+/* IBM_PROLOG_END_TAG */
+
+#ifndef _GPE1_DIMM_H
+#define _GPE1_DIMM_H
+
+#include "gpe_export.h"
+
+#define PIB_BASE 0x000A0000
+// Engine B 0x00A0000
+// Engine C 0x00A1000
+// Engine D 0x00A2000
+// Engine E 0x00A3000
+#define I2C_FIFO1_REG_READ 0x000A0004
+#define I2C_COMMAND_REG 0x000A0005
+#define I2C_MODE_REG 0x000A0006
+#define I2C_INTERRUPT_MASK_REG 0x000A0008
+#define I2C_STATUS_REG 0x000A000B // read
+#define I2C_IMM_RESET_I2C 0x000A000B // write
+#define I2C_BUSY_REGISTER 0x000A000E
+#define I2C_FIFO4_REG_READ 0x000A0012
+
+#define SCOM_ENGINE_OFFSET(engine) (engine << 12)
+
+// I2C Status Reigster masks
+#define STATUS_ERROR_MASK 0xFE80330000000000
+#define STATUS_ERROR_OR_COMPLETE_MASK 0xFF80330000000000
+#define STATUS_COMPLETE_MASK 0x0100000000000000
+#define PEEK_ERROR_MASK 0x00000000FC000000
+#define PEEK_MORE_DATA 0x0000000002000000
+
+
+void dimm_set_ffdc(GpeErrorStruct *o_error, uint32_t i_addr, uint32_t i_rc, uint64_t i_ffdc);
+
+void gpe_dimm_sm(ipc_msg_t* cmd, void* arg);
+
+
+#endif //_GPE1_DIMM_H
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