Level 2 Procedure - p9_sbe_lpc_init

Change-Id: I55b70b8a2c1f6b4eccf3a75d09e6431c91e5872a
Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/20801
Tested-by: Jenkins Server
Reviewed-by: Soma Bhanutej <soma.bhanu@in.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/71472
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Christian R. Geddes <crgeddes@us.ibm.com>

3 files changed, 68 insertions, 26 deletions

diff --git a/src/import/chips/p9/procedures/hwp/perv/p9_sbe_lpc_init.C b/src/import/chips/p9/procedures/hwp/perv/p9_sbe_lpc_init.C
index 2553986bd..698d79691 100644
--- a/src/import/chips/p9/procedures/hwp/perv/p9_sbe_lpc_init.C
+++ b/src/import/chips/p9/procedures/hwp/perv/p9_sbe_lpc_init.C
@@ -25,28 +25,50 @@
 //------------------------------------------------------------------------------
 /// @file  p9_sbe_lpc_init.C
 ///
-/// @brief Requirement from the bootloader is that it only uses MMIOs to LPC master, not Xscom
-// *!
-// *! OWNER NAME  : Abhishek Agarwal  Email: abagarw8@in.ibm.com
-// *! BACKUP NAME :                   Email:
+/// @brief procedure to initialize LPC to enable communictation to PNOR
 //------------------------------------------------------------------------------
-// *HWP HWP Owner   : Abhishek Agarwal <abagarw8@in.ibm.com>
-// *HWP FW Owner    : Brian Silver <bsilver@us.ibm.com>
-// *HWP Team        : Perv
-// *HWP Level       : 1
-// *HWP Consumed by : SBE
+// *HWP HW Owner        : Abhishek Agarwal <abagarw8@in.ibm.com>
+// *HWP HW Backup Owner : Srinivas V Naga <srinivan@in.ibm.com>
+// *HWP FW Owner        : sunil kumar <skumar8j@in.ibm.com>
+// *HWP Team            : Perv
+// *HWP Level           : 2
+// *HWP Consumed by     : SBE
 //------------------------------------------------------------------------------
 
 
 //## auto_generated
 #include "p9_sbe_lpc_init.H"
+
+#include "p9_perv_scom_addresses.H"
+
+
 fapi2::ReturnCode p9_sbe_lpc_init(const
                                   fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>& i_target_chip)
 {
-    FAPI_DBG("p9_sbe_lpc_init: Entering ...");
+    fapi2::buffer<uint64_t> l_data64;
+    FAPI_DBG("Entering ...");
+
+    //activate LPCM reset input
+    //TODO: ADU register address TBD
+
+    // set LPC clock mux select to internal clock
+    //Setting CPLT_CTRL0 register value
+    l_data64.flush<0>();
+    l_data64.setBit<1>();  //PERV.CPLT_CTRL0.TC_UNIT_SYNCCLK_MUXSEL_DC = 1
+    FAPI_TRY(fapi2::putScom(i_target_chip, PERV_TP_CPLT_CTRL0_OR, l_data64));
+
+    // set LPC clock mux select to external clock
+    //Setting CPLT_CTRL0 register value
+    l_data64.flush<0>();
+    l_data64.setBit<1>();  //PERV.CPLT_CTRL0.TC_UNIT_SYNCCLK_MUXSEL_DC = 0
+    FAPI_TRY(fapi2::putScom(i_target_chip, PERV_TP_CPLT_CTRL0_CLEAR, l_data64));
+
+    //de-activate LPCM reset input
+    //TODO: ADU register address TBD
 
-    FAPI_DBG("p9_sbe_lpc_init: Exiting ...");
+    FAPI_DBG("Exiting ...");
 
-    return fapi2::FAPI2_RC_SUCCESS;
+fapi_try_exit:
+    return fapi2::current_err;
 
 }
diff --git a/src/import/chips/p9/procedures/hwp/perv/p9_sbe_lpc_init.H b/src/import/chips/p9/procedures/hwp/perv/p9_sbe_lpc_init.H
index 7f1b07ea3..b32de316d 100644
--- a/src/import/chips/p9/procedures/hwp/perv/p9_sbe_lpc_init.H
+++ b/src/import/chips/p9/procedures/hwp/perv/p9_sbe_lpc_init.H
@@ -25,16 +25,14 @@
 //------------------------------------------------------------------------------
 /// @file  p9_sbe_lpc_init.H
 ///
-/// @brief Requirement from the bootloader is that it only uses MMIOs to LPC master, not Xscom
-// *!
-// *! OWNER NAME  : Abhishek Agarwal  Email: abagarw8@in.ibm.com
-// *! BACKUP NAME :                   Email:
+/// @brief procedure to initialize LPC to enable communictation to PNOR
 //------------------------------------------------------------------------------
-// *HWP HWP Owner   : Abhishek Agarwal <abagarw8@in.ibm.com>
-// *HWP FW Owner    : Brian Silver <bsilver@us.ibm.com>
-// *HWP Team        : Perv
-// *HWP Level       : 1
-// *HWP Consumed by : SBE
+// *HWP HW Owner        : Abhishek Agarwal <abagarw8@in.ibm.com>
+// *HWP HW Backup Owner : Srinivas V Naga <srinivan@in.ibm.com>
+// *HWP FW Owner        : sunil kumar <skumar8j@in.ibm.com>
+// *HWP Team            : Perv
+// *HWP Level           : 2
+// *HWP Consumed by     : SBE
 //------------------------------------------------------------------------------
 
 
@@ -48,11 +46,7 @@
 typedef fapi2::ReturnCode (*p9_sbe_lpc_init_FP_t)(const
         fapi2::Target<fapi2::TARGET_TYPE_PROC_CHIP>&);
 
-/// @brief PerfoPerform scoms to setup LPC bus
-///   --   Move the LPC clock to external input
-/// Pull the LPC unit out of reset
-/// Set LPC BAR -- hardcoded like Xscom BAR
-///
+/// @brief LPC init to enable connection to PNOR
 ///
 /// @param[in]     i_target_chip   Reference to TARGET_TYPE_PROC_CHIP target
 /// @return  FAPI2_RC_SUCCESS if success, else error code.
diff --git a/src/import/chips/p9/procedures/hwp/perv/p9_sbe_lpc_init.mk b/src/import/chips/p9/procedures/hwp/perv/p9_sbe_lpc_init.mk
new file mode 100644
index 000000000..72e18c01b
--- /dev/null
+++ b/src/import/chips/p9/procedures/hwp/perv/p9_sbe_lpc_init.mk
@@ -0,0 +1,26 @@
+# IBM_PROLOG_BEGIN_TAG
+# This is an automatically generated prolog.
+#
+# $Source: src/import/chips/p9/procedures/hwp/perv/p9_sbe_lpc_init.mk $
+#
+# OpenPOWER HostBoot Project
+#
+# Contributors Listed Below - COPYRIGHT 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
+PROCEDURE=p9_sbe_lpc_init
+$(call BUILD_PROCEDURE)