Memory Power Control when entering and exiting IPS (Idle Power Save)

memory power control settings for IPS/default modes - as defined by
memory config data packet version 0x21 - are applied to memory
power control registers of all configured ports whenever the OCC
enters/exits IPS, respectively.

Change-Id: I56514bb8cbab80c6d4877edc74db96f3b011e523
RTC: 165546
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/38294
Reviewed-by: Martha Broyles <mbroyles@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Christopher J. Cain <cjcain@us.ibm.com>
Reviewed-by: Wael El-Essawy <welessa@us.ibm.com>

1 files changed, 38 insertions, 0 deletions

diff --git a/src/occ_405/mem/memory_power_control.h b/src/occ_405/mem/memory_power_control.h
new file mode 100644
index 0000000..2f091f1
--- /dev/null
+++ b/src/occ_405/mem/memory_power_control.h
@@ -0,0 +1,38 @@
+/* IBM_PROLOG_BEGIN_TAG                                                   */
+/* This is an automatically generated prolog.                             */
+/*                                                                        */
+/* $Source: src/occ_405/mem/memory_power_control.h $                      */
+/*                                                                        */
+/* OpenPOWER OnChipController Project                                     */
+/*                                                                        */
+/* Contributors Listed Below - COPYRIGHT 2011,2017                        */
+/* [+] 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                                                     */
+
+#include <occ_common.h>
+
+// perform memory power control (if needed)
+void amec_mem_power_control(void);
+
+// Check whether the OCC is in IPS
+inline bool is_occ_in_ips(void);
+
+// create the memory power control  gpe request IPC task
+void gpe_init_mem_power_control(void);
+
+// schedule the memory power control IPC task
+int gpe_mem_power_control(uint8_t mem_pwr_ctl, uint8_t memIndex, uint8_t wait_idle_gpe);