1 files changed, 105 insertions, 0 deletions
diff --git a/src/usr/hwpf/hwp/slave_sbe/proc_check_slave_sbe_seeprom_complete/proc_reset_i2cm_bus_fence.C b/src/usr/hwpf/hwp/slave_sbe/proc_check_slave_sbe_seeprom_complete/proc_reset_i2cm_bus_fence.C
new file mode 100644
index 000000000..5f97ee47a
--- /dev/null
+++ b/src/usr/hwpf/hwp/slave_sbe/proc_check_slave_sbe_seeprom_complete/proc_reset_i2cm_bus_fence.C
@@ -0,0 +1,105 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/usr/hwpf/hwp/slave_sbe/proc_check_slave_sbe_seeprom_complete/proc_reset_i2cm_bus_fence.C $ */
+/*                                                                        */
+/* IBM CONFIDENTIAL                                                       */
+/*                                                                        */
+/* COPYRIGHT International Business Machines Corp. 2014                   */
+/*                                                                        */
+/* p1                                                                     */
+/*                                                                        */
+/* Object Code Only (OCO) source materials                                */
+/* Licensed Internal Code Source Materials                                */
+/* IBM HostBoot Licensed Internal Code                                    */
+/*                                                                        */
+/* The source code for this program is not published or otherwise         */
+/* divested of its trade secrets, irrespective of what has been           */
+/* deposited with the U.S. Copyright Office.                              */
+/*                                                                        */
+/* Origin: 30                                                             */
+/*                                                                        */
+/* IBM_PROLOG_END_TAG                                                     */
+// $Id: proc_reset_i2cm_bus_fence.C,v 1.1 2014/02/18 19:53:44 jmcgill Exp $
+// $Source: /afs/awd/projects/eclipz/KnowledgeBase/.cvsroot/eclipz/chips/p8/working/procedures/ipl/fapi/proc_reset_i2cm_bus_fence.C,v $
+//------------------------------------------------------------------------------
+// *! (C) Copyright International Business Machines Corp. 2012
+// *! All Rights Reserved -- Property of IBM
+// *! *** IBM Confidential ***
+//------------------------------------------------------------------------------
+// *! TITLE       : proc_reset_i2cm_bus_fence.C
+// *! DESCRIPTION : Clear i2cm bus fence to restore FSP access (FAPI)
+// *!
+// *! OWNER NAME : Joe McGill        Email: jmcgill@us.ibm.com
+// *!
+// *! ADDITIONAL COMMENTS :
+// *!
+//------------------------------------------------------------------------------
+
+//------------------------------------------------------------------------------
+//  Includes
+//------------------------------------------------------------------------------
+#include <proc_reset_i2cm_bus_fence.H>
+#include <p8_scom_addresses.H>
+
+
+//------------------------------------------------------------------------------
+// Constant definitions
+//------------------------------------------------------------------------------
+const uint32_t CFAM_FSI_GP4_I2CM_BUS_FENCE_BIT = 20;
+
+
+//------------------------------------------------------------------------------
+// Function definitions
+//------------------------------------------------------------------------------
+
+extern "C" {
+
+// HWP entry point, comments in header
+fapi::ReturnCode proc_reset_i2cm_bus_fence(const fapi::Target & i_target)
+{
+    fapi::ReturnCode rc;
+    uint32_t rc_ecmd = 0;
+
+    ecmdDataBufferBase cfam_data(32);
+
+    // mark HWP entry
+    FAPI_INF("proc_reset_i2cm_bus_fence: Start");
+
+    do
+    {
+        // read FSI GP4
+        rc = fapiGetCfamRegister(i_target, CFAM_FSI_GP4_0x00002813, cfam_data);
+        if (!rc.ok())
+        {
+            FAPI_ERR("proc_reset_i2cm_bus_fence: Error from fapiGetCfamRegister (CFAM_FSI_GP4_0x00002813)");
+            break;
+        }
+
+        // clear fence bit
+        rc_ecmd |= cfam_data.clearBit(CFAM_FSI_GP4_I2CM_BUS_FENCE_BIT);
+        if (rc_ecmd)
+        {
+            FAPI_ERR("proc_reset_i2cm_bus_fence: Error 0x%x forming FSI GP4 register write data buffer",
+                     rc_ecmd);
+            rc.setEcmdError(rc_ecmd);
+            break;
+        }
+
+        // write back modified data
+        rc = fapiPutCfamRegister(i_target, CFAM_FSI_GP4_0x00002813, cfam_data);
+        if (!rc.ok())
+        {
+            FAPI_ERR("proc_reset_i2cm_bus_fence: Error from fapiGetCfamRegister (CFAM_FSI_GP4_0x00002813)");
+            break;
+        }
+
+    } while(0);
+
+    // mark HWP exit
+    FAPI_INF("proc_reset_i2cm_bus_fence: End");
+    return rc;
+}
+
+
+} // extern "C"