Adding infrastructure support for Hostboot istep 20.1

The FSP loads the payload in 20.1, but in the PowerVM on BMC
project, we're removing the FSP and Hostboot has to load the
payload instead.  Isteps 20 will also include HDAT changes.
(This is a forwardport from the already-reviewed master-p8 change)

Change-Id: I271a13d96c364e696bf3064d5d43607f7057467b
RTC:147281
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/22975
Tested-by: Jenkins Server
Tested-by: FSP CI Jenkins
Reviewed-by: Prachi Gupta <pragupta@us.ibm.com>
Reviewed-by: Christian R. Geddes <crgeddes@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Reviewed-by: William G. Hoffa <wghoffa@us.ibm.com>

2 files changed, 98 insertions, 3 deletions

diff --git a/src/include/usr/isteps/istep20list.H b/src/include/usr/isteps/istep20list.H
new file mode 100644
index 000000000..144ae0ff2
--- /dev/null
+++ b/src/include/usr/isteps/istep20list.H
@@ -0,0 +1,93 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/include/usr/isteps/istep20list.H $                        */
+/*                                                                        */
+/* OpenPOWER HostBoot Project                                             */
+/*                                                                        */
+/* Contributors Listed Below - COPYRIGHT 2012,2016                        */
+/* [+] 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 __ISTEPS_ISTEP20LIST_H
+#define __ISTEPS_ISTEP20LIST_H
+
+/**
+ * @file    istep20list.H
+ *
+ *  IStep 20    Load Payload
+ *
+ *    20.1    host_load_payload
+ *          :  Load Payload
+ *
+ *  Please see the note in initsvcstructs.H for description of
+ *      the ISTEPNAME macro.
+ *
+ */
+
+#include    <initservice/initsvcstructs.H>
+#include    <initservice/initsvcreasoncodes.H>
+#include    <config.h>
+
+namespace   ISTEP_20
+{
+
+/**
+ *  @brief   host_load_payload
+ *
+ *  param[in,out]   -   pointer to any arguments, usually NULL
+ *
+ *  return any errlogs to istep
+ *
+ */
+void*  call_host_load_payload( void    *io_pArgs );
+
+};
+
+
+namespace   INITSERVICE
+{
+    const   TaskInfo    g_istep20[]  =   {
+        {
+                "",         // dummy, index 0
+                NULL,
+                { NONE, EXT_IMAGE, IPL_NOOP, false }
+        },
+        {
+                ISTEPNAME(20,01,"host_load_payload"),
+                ISTEP_20::call_host_load_payload,
+                { START_FN, EXT_IMAGE, MPIPL_OP | NORMAL_IPL_OP, false }
+        },
+
+};
+
+const DepModInfo  g_istep20Dependancies = {
+    {
+        DEP_LIB(libistep20.so),
+        DEP_LIB(libxz.so),
+        NULL
+    }
+};
+
+const ExtTaskInfo g_istep20TaskList = {
+    &(g_istep20[0]),
+    ( sizeof(g_istep20)/sizeof(TaskInfo) ),
+    &g_istep20Dependancies
+};
+
+};  // end namespace
+
+#endif
diff --git a/src/include/usr/isteps/istepmasterlist.H b/src/include/usr/isteps/istepmasterlist.H
index 3b244d8de..d77f39e47 100644
--- a/src/include/usr/isteps/istepmasterlist.H
+++ b/src/include/usr/isteps/istepmasterlist.H
@@ -5,7 +5,9 @@
 /*                                                                        */
 /* OpenPOWER HostBoot Project                                             */
 /*                                                                        */
-/* COPYRIGHT International Business Machines Corp. 2011,2014              */
+/* Contributors Listed Below - COPYRIGHT 2011,2016                        */
+/* [+] 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.       */
@@ -76,7 +78,7 @@
 // istep 17, FSP only
 #include    "istep18list.H"
 // istep 19, FSP only
-// istep 20, FSP only
+#include    "istep20list.H"
 #include    "istep21list.H"
 
 namespace   INITSERVICE
@@ -104,7 +106,7 @@ const  ExtTaskInfo  g_isteps[]    =   {
         { NULL, 0, NULL},                               //  FSP   IStep 17
         INITSERVICE::g_istep18TaskList,                 //        IStep 18
         { NULL, 0, NULL },                              //  FSP   IStep 19
-        { NULL, 0, NULL },                              //  FSP   IStep 20
+        INITSERVICE::g_istep20TaskList,                 //        IStep 20
         INITSERVICE::g_istep21TaskList                  //        IStep 21
         //
         // add further istep lists at the end.