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dcrowell77A. Patrick Williams III
dcrowell77
authored and
A. Patrick Williams III
committed
Create LPC Device Driver
Split LPC function out from PNOR DD and incorporate Stradale changes Change-Id: I4162db1a9f52ba3c0c973438b7b70baeae00aee2 Origin: Google Shared Technology RTC: 97494 Reviewed-on: http://gfw160.aus.stglabs.ibm.com:8080/gerrit/11198 Tested-by: Jenkins Server Reviewed-by: Michael Baiocchi <[email protected]> Reviewed-by: Douglas R. Gilbert <[email protected]> Reviewed-by: Daniel M. Crowell <[email protected]> Reviewed-by: A. Patrick Williams III <[email protected]>
1 parent e7d14e4 commit d001feb

15 files changed

+1792
-605
lines changed

‎src/build/tools/listdeps.pl

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@@ -209,6 +209,7 @@
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"libfsi.so" => '1',
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"libscan.so" => '1',
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"libgpio.so" => '1',
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"liblpc.so" => '1',
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);
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‎src/include/usr/devicefw/userif.H

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@@ -58,6 +58,8 @@ namespace DeviceFW
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SCAN,
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EEPROM,
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GPIO,
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LPC,
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LAST_ACCESS_TYPE,
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};
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@@ -141,6 +143,17 @@ namespace DeviceFW
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static_cast<uint64_t>(( i_ringlen )),\
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static_cast<uint64_t>(( i_flag ))
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/**
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* Construct the device addressing parameters for the LPC device ops.
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* @param[in] i_trans_type - LPC transaction type.
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* @param[in] i_address - LPC address to operate on.
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* Flag options are located in: src/include/usr/lpc/lpcif.H
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*/
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#define DEVICE_LPC_ADDRESS( i_trans_type, i_address )\
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DeviceFW::LPC, static_cast<uint64_t>(( i_trans_type )),\
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static_cast<uint64_t>(( i_address ))
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/**
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* Construct the device addressing parameters for the EEPROM device ops.
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* @param[in] i_eeprom_enum - The chip number of the EEPROM to access. See

‎src/include/usr/hbotcompid.H

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@@ -325,6 +325,15 @@ const compId_t GPIO_COMP_ID = 0x2300;
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const char GPIO_COMP_NAME[] = "gpio";
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//@}
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/** @name LPC
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* Low Pin Count Bus
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*/
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//@{
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const compId_t LPC_COMP_ID = 0x2400;
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const char LPC_COMP_NAME[] = "lpc";
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//@}
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/** @name RESERVED
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* Reserved component ID. x3100 is the component ID
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* of FipS ERRL component. Due to our use of

‎src/include/usr/lpc/lpc_reasoncodes.H

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@@ -0,0 +1,60 @@
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/* IBM_PROLOG_BEGIN_TAG */
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/* This is an automatically generated prolog. */
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/* */
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/* $Source: src/include/usr/lpc/lpc_reasoncodes.H $ */
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/* */
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/* OpenPOWER HostBoot Project */
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/* */
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/* Contributors Listed Below - COPYRIGHT 2014 */
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/* [+] Google Inc. */
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/* [+] International Business Machines Corp. */
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/* */
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/* */
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/* Licensed under the Apache License, Version 2.0 (the "License"); */
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/* you may not use this file except in compliance with the License. */
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/* You may obtain a copy of the License at */
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/* */
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/* http://www.apache.org/licenses/LICENSE-2.0 */
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/* */
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/* Unless required by applicable law or agreed to in writing, software */
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/* distributed under the License is distributed on an "AS IS" BASIS, */
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/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
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/* implied. See the License for the specific language governing */
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/* permissions and limitations under the License. */
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/* */
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/* IBM_PROLOG_END_TAG */
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#ifndef __LPC_REASONCODES_H
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#define __LPC_REASONCODES_H
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#include <hbotcompid.H>
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namespace LPC
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{
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enum LPCModuleId
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{
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MOD_LPCDD_INVALID_MODULE = 0x00,
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MOD_LPCDD_CHECKADDR = 0x01,
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MOD_LPCDD_READLPC = 0x02,
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MOD_LPCDD_WRITELPC = 0x03,
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MOD_LPCDD_CHECKFOROPBERRORS = 0x04,
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MOD_LPCDD_HWRESET = 0x05,
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MOD_CREATE_ALTMASTER = 0x06,
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MOD_READLPC = 0x07,
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MOD_WRITELPC = 0x08,
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};
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enum LPCReasonCode
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{
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RC_INVALID_ADDR = LPC_COMP_ID | 0x01,
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RC_ECCB_ERROR = LPC_COMP_ID | 0x02,
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RC_BAD_ARG = LPC_COMP_ID | 0x03,
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RC_OPB_ERROR = LPC_COMP_ID | 0x04,
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RC_UNSUPPORTED_OPERATION = LPC_COMP_ID | 0x05,
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RC_ALTMASTER_EXISTS = LPC_COMP_ID | 0x06,
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RC_CANT_USE_MASTER = LPC_COMP_ID | 0x07,
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RC_CANT_USE_SENTINEL = LPC_COMP_ID | 0x08,
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RC_BAD_TARGET = LPC_COMP_ID | 0x09,
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};
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};
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#endif

‎src/include/usr/lpc/lpcif.H

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@@ -0,0 +1,64 @@
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/* IBM_PROLOG_BEGIN_TAG */
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/* This is an automatically generated prolog. */
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/* */
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/* $Source: src/include/usr/lpc/lpcif.H $ */
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/* */
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/* OpenPOWER HostBoot Project */
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/* */
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/* Contributors Listed Below - COPYRIGHT 2014 */
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/* [+] Google Inc. */
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/* [+] International Business Machines Corp. */
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/* */
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/* */
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/* Licensed under the Apache License, Version 2.0 (the "License"); */
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/* you may not use this file except in compliance with the License. */
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/* You may obtain a copy of the License at */
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/* */
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/* http://www.apache.org/licenses/LICENSE-2.0 */
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/* */
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/* Unless required by applicable law or agreed to in writing, software */
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/* distributed under the License is distributed on an "AS IS" BASIS, */
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/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
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/* implied. See the License for the specific language governing */
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/* permissions and limitations under the License. */
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/* */
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/* IBM_PROLOG_END_TAG */
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#ifndef __LPCIF_H
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#define __LPCIF_H
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#include <errl/errlentry.H>
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namespace LPC
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{
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/**
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* @enum LPC::TransType
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* @brief LPC Transaction Types
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*/
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enum TransType {
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TRANS_IO,
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TRANS_MEM,
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TRANS_FW,
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TRANS_REG, // LPCHC Register space
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TRANS_ABS, // Address parm is absolute
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TRANS_LAST //Invalid, used for looping and tests
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};
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/**
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* @brief Create/delete software objects to support non-master access
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*
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* Only a single altmaster object can be active at any given time. The
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* previous object must be destroyed before creating another one.
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*
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* @param i_create true: create objects, false: destroy previous objects
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* @param i_proc Processor target to use for LPC access
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*
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* @return Error if invalid parms or ordering occurs
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*/
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errlHndl_t create_altmaster_objects( bool i_create,
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TARGETING::Target* i_proc );
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}; // namespace LPC
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#endif // end __LPCIF_H

‎src/include/usr/pnor/pnor_reasoncodes.H

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@@ -6,6 +6,7 @@
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/* OpenPOWER HostBoot Project */
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/* */
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/* Contributors Listed Below - COPYRIGHT 2011,2014 */
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/* [+] Google Inc. */
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/* [+] International Business Machines Corp. */
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/* */
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/* */
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RC_ERROR_IN_STATUS_REG = PNOR_COMP_ID | 0x10,
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//termination_rc
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RC_REINITIALIZE_SFC = PNOR_COMP_ID | 0x11,
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RC_SFC_ERROR = PNOR_COMP_ID | 0x12,
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};
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enum UserDetailsTypes
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{
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PNOR_UDT_NO_FORMAT = 0x0,
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PNOR_UDT_PNORDD_PARAMETERS = 0x1,
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PNOR_UDT_PNORDD_PARAMETERS = 0x1,
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};
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};
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‎src/makefile

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@@ -110,6 +110,7 @@ BASE_MODULES += scom
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BASE_MODULES += xscom
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BASE_MODULES += initservice
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BASE_MODULES += secureboot_base
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BASE_MODULES += lpc
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BASE_MODULES += pnor
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BASE_MODULES += vfs
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@@ -233,7 +234,6 @@ RUNTIME_TESTCASE_MODULES += testutil_rt
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RUNTIME_TESTCASE_MODULES += testvpd_rt
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RUNTIME_TESTCASE_MODULES += testhwpf_rt
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RELOCATABLE_IMAGE_LDFLAGS = -pie --export-dynamic
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hbicore_OBJECTS += ${BASE_OBJECTS}

‎src/usr/lpc/HBconfig

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config LPC_CONSOLE
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default n
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help
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Enable the Hostboot console over the LPC bus.

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