1 /* -------------------------------- Arctic Core ------------------------------
2 * Arctic Core - the open source AUTOSAR platform http://arccore.com
4 * Copyright (C) 2009 ArcCore AB <contact@arccore.com>
6 * This source code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published by the
8 * Free Software Foundation; See <http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt>.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * -------------------------------- Arctic Core ------------------------------*/
25 #include "Std_Types.h"
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28 #include "mpc55xx.h"
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32 #include "int_ctrl.h"
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34 //#define USE_TRACE 1
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35 //#define USE_DEBUG 1
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38 #define SYSCLOCK_SELECT_PLL 0x2
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40 #if defined(CFG_MPC5567)
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41 #define CALC_SYSTEM_CLOCK(_extal,_emfd,_eprediv,_erfd) \
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42 ( (_extal) * ((_emfd)+4) / (((_eprediv)+1)*(1<<(_erfd))) )
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44 #define CALC_SYSTEM_CLOCK(_extal,_emfd,_eprediv,_erfd) \
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45 ( (_extal) * ((_emfd)+16) / (((_eprediv)+1)*((_erfd)+1)) )
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48 typedef void (*vfunc_t)();
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50 /* Function declarations. */
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51 static void Mcu_ConfigureFlash(void);
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55 uint32 lossOfLockCnt;
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56 uint32 lossOfClockCnt;
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60 * Type that holds all global data for Mcu
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64 // Set if Mcu_Init() have been called
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68 const Mcu_ConfigType *config;
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70 Mcu_ClockType clockSetting;
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76 /* Development error macros. */
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77 #if ( MCU_DEV_ERROR_DETECT == STD_ON )
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78 #define VALIDATE(_exp,_api,_err ) \
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80 Det_ReportError(MODULE_ID_MCU,0,_api,_err); \
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84 #define VALIDATE_W_RV(_exp,_api,_err,_rv ) \
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86 Det_ReportError(MODULE_ID_MCU,0,_api,_err); \
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90 #define VALIDATE(_exp,_api,_err )
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91 #define VALIDATE_W_RV(_exp,_api,_err,_rv )
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95 Mcu_GlobalType Mcu_Global =
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98 .config = &McuConfigData[0],
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101 //-------------------------------------------------------------------
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103 static void Mcu_LossOfLock( void ) {
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104 #if ( MCU_DEV_ERROR_DETECT == STD_ON )
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105 /* Should report MCU_E_CLOCK_FAILURE with DEM here.... but
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106 * we do the next best thing. Report with Det with API = 0
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108 Det_ReportError(MODULE_ID_MCU,0,0,MCU_E_PLL_NOT_LOCKED);
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111 Mcu_Global.stats.lossOfLockCnt++;
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113 FMPLL.SYNSR.B.LOLF = 1;
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117 //-------------------------------------------------------------------
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118 static void Mcu_LossOfCLock( void ) {
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120 /* Should report MCU_E_CLOCK_FAILURE with DEM here */
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122 Mcu_Global.stats.lossOfClockCnt++;
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124 FMPLL.SYNSR.B.LOCF = 1;
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128 #define SPR_PIR 286
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129 #define SPR_PVR 287
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131 #define CORE_PVR_E200Z1 0x81440000UL
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132 #define CORE_PVR_E200Z0 0x81710000UL
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133 #define CORE_PVR_E200Z6 0x81170000UL
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146 cpu_info_t cpu_info_list[] =
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148 #if defined(CFG_MPC5516)
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151 .pvr = CORE_PVR_E200Z1,
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155 .pvr = CORE_PVR_E200Z0,
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157 #elif defined(CFG_MPC5567)
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160 .pvr = CORE_PVR_E200Z6,
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165 core_info_t core_info_list[] = {
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166 #if defined(CFG_MPC5516)
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168 .name = "CORE_E200Z1",
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169 .pvr = CORE_PVR_E200Z1,
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172 .name = "CORE_E200Z1",
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173 .pvr = CORE_PVR_E200Z1,
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175 #elif defined(CFG_MPC5567)
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177 .name = "CORE_E200Z6",
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178 .pvr = CORE_PVR_E200Z6,
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184 #if !defined(ARRAY_SIZE)
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185 #define ARRAY_SIZE(_x) (sizeof(_x)/sizeof((_x)[0]))
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188 static cpu_info_t *Mcu_IdentifyCpu(uint32 pvr)
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191 for (i = 0; i < ARRAY_SIZE(cpu_info_list); i++) {
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192 if (cpu_info_list[i].pvr == pvr) {
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193 return &cpu_info_list[i];
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200 static core_info_t *Mcu_IdentifyCore(uint32 pvr)
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203 for (i = 0; i < ARRAY_SIZE(core_info_list); i++) {
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204 if (core_info_list[i].pvr == pvr) {
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205 return &core_info_list[i];
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213 static uint32 Mcu_CheckCpu( void ) {
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217 cpu_info_t *cpuType;
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218 core_info_t *coreType;
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220 // We have to registers to read here, PIR and PVR
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222 pir = get_spr(SPR_PIR);
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223 pvr = get_spr(SPR_PVR);
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225 cpuType = Mcu_IdentifyCpu(pvr);
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226 coreType = Mcu_IdentifyCore(pvr);
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228 if( (cpuType == NULL) || (coreType == NULL) ) {
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233 //DEBUG(DEBUG_HIGH,"/drivers/mcu: Cpu: %s( 0x%08x )\n",cpuType->name,pvr);
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234 //DEBUG(DEBUG_HIGH,"/drivers/mcu: Core: %s( 0x%08x )\n",coreType->name,pvr);
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240 //-------------------------------------------------------------------
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242 void Mcu_Init(const Mcu_ConfigType *configPtr)
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244 VALIDATE( ( NULL != configPtr ), MCU_INIT_SERVICE_ID, MCU_E_PARAM_CONFIG );
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246 if( !SIMULATOR() ) {
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250 memset(&Mcu_Global.stats,0,sizeof(Mcu_Global.stats));
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256 Mcu_ConfigureFlash();
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260 Mcu_Global.config = configPtr;
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261 Mcu_Global.initRun = 1;
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263 if( Mcu_Global.config->McuClockSrcFailureNotification == TRUE ){
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264 // Enable loss of lock interrupt
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266 IntCtrl_AttachIsr1(Mcu_LossOfLock, NULL, PLL_SYNSR_LOLF,10 );
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267 #if defined(CFG_MPC5516)
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268 // FMPLL.SYNCR.B.LOCIRQ = 1; TODO: Kolla denna bortkommentering med Mårten.
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269 FMPLL.ESYNCR2.B.LOLIRQ = 1;
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270 #elif defined(CFG_MPC5554) || defined(CFG_MPC5567)
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271 FMPLL.SYNCR.B.LOLIRQ = 1;
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273 IntCtrl_AttachIsr1(Mcu_LossOfCLock, NULL, PLL_SYNSR_LOCF,10 );
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274 #if defined(CFG_MPC5516)
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275 // FMPLL.SYNCR.B.LOCIRQ = 1; TODO: Kolla denna bortkommentering med Mårten.
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276 FMPLL.ESYNCR2.B.LOCIRQ = 1;
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277 #elif defined(CFG_MPC5554) || defined(CFG_MPC5567)
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278 FMPLL.SYNCR.B.LOCIRQ = 1;
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282 //-------------------------------------------------------------------
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286 Mcu_Global.initRun = FALSE; // Very simple Deinit. Should we do more?
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289 //-------------------------------------------------------------------
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290 Std_ReturnType Mcu_InitRamSection(const Mcu_RamSectionType RamSection)
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292 VALIDATE_W_RV( ( 1 == Mcu_Global.initRun ), MCU_INITRAMSECTION_SERVICE_ID, MCU_E_UNINIT, E_NOT_OK );
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293 VALIDATE_W_RV( ( RamSection <= Mcu_Global.config->McuRamSectors ), MCU_INITRAMSECTION_SERVICE_ID, MCU_E_PARAM_RAMSECTION, E_NOT_OK );
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295 /* NOT SUPPORTED, reason: no support for external RAM */
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302 //-------------------------------------------------------------------
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304 Std_ReturnType Mcu_InitClock(const Mcu_ClockType ClockSetting)
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306 Mcu_ClockSettingConfigType *clockSettingsPtr;
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307 VALIDATE_W_RV( ( 1 == Mcu_Global.initRun ), MCU_INITCLOCK_SERVICE_ID, MCU_E_UNINIT, E_NOT_OK );
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308 VALIDATE_W_RV( ( ClockSetting < Mcu_Global.config->McuClockSettings ), MCU_INITCLOCK_SERVICE_ID, MCU_E_PARAM_CLOCK, E_NOT_OK );
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310 Mcu_Global.clockSetting = ClockSetting;
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311 clockSettingsPtr = &Mcu_Global.config->McuClockSettingConfig[Mcu_Global.clockSetting];
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314 // TODO: find out if the 5554 really works like the 5516 here
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315 // All three (16, 54, 67) used to run the same code here though, so i'm sticking it with 5516
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316 #if defined(CFG_MPC5516) || defined(CFG_MPC5554)
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318 * Fsys - System frequency ( CPU + all periperals? )
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320 * Fsys = EXTAL_FREQ *( (emfd+16) / ( (eprediv+1) * ( erfd+1 )) ) )
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323 assert((clockSettingsPtr->PllEmfd>=32) && (clockSettingsPtr->PllEmfd<=132));
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324 assert( (clockSettingsPtr->PllEprediv!=6) &&
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325 (clockSettingsPtr->PllEprediv!=8) &&
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326 (clockSettingsPtr->PllEprediv<10) );
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327 assert( clockSettingsPtr->PllErfd & 1); // Must be odd
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328 #elif defined(CFG_MPC5567)
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329 /* 5567 clock info:
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330 * Fsys = EXTAL_FREQ *( (emfd+4) / ( (eprediv+1) * ( 2^erfd )) ) )
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333 assert(clockSettingsPtr->PllEmfd < 16);
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334 assert(clockSettingsPtr->PllEprediv <= 4);
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335 assert(clockSettingsPtr->PllErfd < 8);
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339 #if defined(USE_DEBUG)
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341 uint32 extal = Mcu_Global.config->McuClockSettingConfig[Mcu_Global.clockSetting].McuClockReferencePoint;
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344 f_sys = CALC_SYSTEM_CLOCK( extal,
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345 clockSettingsPtr->PllEmfd,
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346 clockSettingsPtr->PllEprediv,
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347 clockSettingsPtr->PllErfd );
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349 //DEBUG(DEBUG_HIGH,"/drivers/mcu: F_sys will be:%08d Hz\n",f_sys);
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353 #if defined(CFG_MPC5516)
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354 // External crystal PLL mode.
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355 FMPLL.ESYNCR1.B.CLKCFG = 7; //TODO: Hur ställa detta för 5567?
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357 // Write pll parameters.
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358 FMPLL.ESYNCR1.B.EPREDIV = clockSettingsPtr->PllEprediv;
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359 FMPLL.ESYNCR1.B.EMFD = clockSettingsPtr->PllEmfd;
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360 FMPLL.ESYNCR2.B.ERFD = clockSettingsPtr->PllErfd;
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362 // Connect SYSCLK to FMPLL
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363 SIU.SYSCLK.B.SYSCLKSEL = SYSCLOCK_SELECT_PLL;
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364 #elif defined(CFG_MPC5554) || defined(CFG_MPC5567)
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365 // Partially following the steps in MPC5567 RM..
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366 FMPLL.SYNCR.B.DEPTH = 0;
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367 FMPLL.SYNCR.B.LOLRE = 0;
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368 FMPLL.SYNCR.B.LOLIRQ = 0;
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370 FMPLL.SYNCR.B.PREDIV = clockSettingsPtr->PllEprediv;
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371 FMPLL.SYNCR.B.MFD = clockSettingsPtr->PllEmfd;
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372 FMPLL.SYNCR.B.RFD = clockSettingsPtr->PllErfd;
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374 // Wait for PLL to sync.
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375 while (Mcu_GetPllStatus() != MCU_PLL_LOCKED)
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378 FMPLL.SYNCR.B.LOLIRQ = 1;
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384 //-------------------------------------------------------------------
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386 void Mcu_DistributePllClock(void)
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388 VALIDATE( ( 1 == Mcu_Global.initRun ), MCU_DISTRIBUTEPLLCLOCK_SERVICE_ID, MCU_E_UNINIT );
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389 VALIDATE( ( FMPLL.SYNSR.B.LOCK == 1 ), MCU_DISTRIBUTEPLLCLOCK_SERVICE_ID, MCU_E_PLL_NOT_LOCKED );
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391 /* NOT IMPLEMENTED due to pointless function on this hardware */
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395 //-------------------------------------------------------------------
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397 Mcu_PllStatusType Mcu_GetPllStatus(void)
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399 VALIDATE_W_RV( ( 1 == Mcu_Global.initRun ), MCU_GETPLLSTATUS_SERVICE_ID, MCU_E_UNINIT, MCU_PLL_STATUS_UNDEFINED );
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400 Mcu_PllStatusType rv;
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404 if ( !FMPLL.SYNSR.B.LOCK )
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406 rv = MCU_PLL_UNLOCKED;
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409 rv = MCU_PLL_LOCKED;
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414 /* We are running on instruction set simulator. PLL is then always in sync... */
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415 rv = MCU_PLL_LOCKED;
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421 //-------------------------------------------------------------------
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423 Mcu_ResetType Mcu_GetResetReason(void)
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427 VALIDATE_W_RV( ( 1 == Mcu_Global.initRun ), MCU_GETRESETREASON_SERVICE_ID, MCU_E_UNINIT, MCU_RESET_UNDEFINED );
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429 if( SIU.RSR.B.SSRS ) {
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431 } else if( SIU.RSR.B.WDRS ) {
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432 rv = MCU_WATCHDOG_RESET;
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433 } else if( SIU.RSR.B.PORS || SIU.RSR.B.ERS ) {
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434 rv = MCU_POWER_ON_RESET;
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436 rv = MCU_RESET_UNDEFINED;
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442 //-------------------------------------------------------------------
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444 Mcu_RawResetType Mcu_GetResetRawValue(void)
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446 VALIDATE_W_RV( ( 1 == Mcu_Global.initRun ), MCU_GETRESETREASON_SERVICE_ID, MCU_E_UNINIT, MCU_GETRESETRAWVALUE_UNINIT_RV );
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448 if( !Mcu_Global.initRun ) {
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449 return MCU_GETRESETRAWVALUE_UNINIT_RV;
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455 //-------------------------------------------------------------------
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457 #if ( MCU_PERFORM_RESET_API == STD_ON )
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458 void Mcu_PerformReset(void)
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460 VALIDATE( ( 1 == Mcu_Global.initRun ), MCU_PERFORMRESET_SERVICE_ID, MCU_E_UNINIT );
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463 SIU.SRCR.B.SSR = 1;
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468 //-------------------------------------------------------------------
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470 void Mcu_SetMode(const Mcu_ModeType McuMode)
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472 VALIDATE( ( 1 == Mcu_Global.initRun ), MCU_SETMODE_SERVICE_ID, MCU_E_UNINIT );
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473 VALIDATE( ( McuMode <= Mcu_Global.config->McuNumberOfMcuModes ), MCU_SETMODE_SERVICE_ID, MCU_E_PARAM_MODE );
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476 /* NOT SUPPORTED */
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479 //-------------------------------------------------------------------
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482 * Get the system clock in Hz. It calculates the clock from the
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483 * different register settings in HW.
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485 uint32_t McuE_GetSystemClock(void)
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488 * System clock calculation
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490 * 5516 - f_sys = extal * (emfd+16) / ( (eprediv+1) * ( erfd+1 ));
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491 * 5567 - f_sys = extal * (emfd+4) / ( (eprediv+1) * ( 2^erfd ));
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493 #if defined(CFG_MPC5516)
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494 uint32_t eprediv = FMPLL.ESYNCR1.B.EPREDIV;
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495 uint32_t emfd = FMPLL.ESYNCR1.B.EMFD;
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496 uint32_t erfd = FMPLL.ESYNCR2.B.ERFD;
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497 #elif defined(CFG_MPC5554) || defined(CFG_MPC5567)
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498 uint32_t eprediv = FMPLL.SYNCR.B.PREDIV;
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499 uint32_t emfd = FMPLL.SYNCR.B.MFD;
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500 uint32_t erfd = FMPLL.SYNCR.B.RFD;
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503 uint32 extal = Mcu_Global.config->McuClockSettingConfig[Mcu_Global.clockSetting].McuClockReferencePoint;
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505 f_sys = CALC_SYSTEM_CLOCK(extal,emfd,eprediv,erfd);
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510 imask_t McuE_EnterCriticalSection()
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512 uint32_t msr = get_msr();
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517 void McuE_ExitCriticalSection(uint32_t old_state)
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519 set_msr(old_state);
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523 * Get the peripheral clock in Hz for a specific device
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526 uint32_t McuE_GetPeripheralClock(McuE_PeriperalClock_t type)
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528 #if defined(CFG_MPC5567)
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529 // No peripheral dividers on 5567.
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530 return McuE_GetSystemClock();
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532 uint32_t sysClock = McuE_GetSystemClock();
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533 vuint32_t prescaler;
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536 // See table 3.1, section 3.4.5 Peripheral Clock dividers
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539 case PERIPHERAL_CLOCK_FLEXCAN_A:
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540 case PERIPHERAL_CLOCK_DSPI_A:
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541 #if defined(CFG_MPC5516)
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542 prescaler = SIU.SYSCLK.B.LPCLKDIV0;
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546 case PERIPHERAL_CLOCK_PIT:
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547 case PERIPHERAL_CLOCK_ESCI_A:
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548 case PERIPHERAL_CLOCK_IIC_A:
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549 #if defined(CFG_MPC5516)
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550 prescaler = SIU.SYSCLK.B.LPCLKDIV1;
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554 case PERIPHERAL_CLOCK_FLEXCAN_B:
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555 case PERIPHERAL_CLOCK_FLEXCAN_C:
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556 case PERIPHERAL_CLOCK_FLEXCAN_D:
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557 case PERIPHERAL_CLOCK_FLEXCAN_E:
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558 case PERIPHERAL_CLOCK_FLEXCAN_F:
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559 #if defined(CFG_MPC5516)
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560 prescaler = SIU.SYSCLK.B.LPCLKDIV2;
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564 case PERIPHERAL_CLOCK_DSPI_B:
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565 case PERIPHERAL_CLOCK_DSPI_C:
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566 case PERIPHERAL_CLOCK_DSPI_D:
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567 #if defined(CFG_MPC5516)
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568 prescaler = SIU.SYSCLK.B.LPCLKDIV3;
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572 case PERIPHERAL_CLOCK_ESCI_B:
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573 case PERIPHERAL_CLOCK_ESCI_C:
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574 case PERIPHERAL_CLOCK_ESCI_D:
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575 case PERIPHERAL_CLOCK_ESCI_E:
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576 case PERIPHERAL_CLOCK_ESCI_F:
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577 case PERIPHERAL_CLOCK_ESCI_G:
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578 case PERIPHERAL_CLOCK_ESCI_H:
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579 #if defined(CFG_MPC5516)
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580 prescaler = SIU.SYSCLK.B.LPCLKDIV4;
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584 case PERIPHERAL_CLOCK_EMIOS:
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585 #if defined(CFG_MPC5516)
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586 prescaler = SIU.SYSCLK.B.LPCLKDIV5;
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590 case PERIPHERAL_CLOCK_MLB:
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591 #if defined(CFG_MPC5516)
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592 prescaler = SIU.SYSCLK.B.LPCLKDIV6;
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601 return sysClock/(1<<prescaler);
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607 * Function to setup the internal flash for optimal performance
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610 static void Mcu_ConfigureFlash(void)
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612 /* These flash settings increases the CPU performance of 7 times compared
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613 to reset default settings!! */
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615 #if defined(CFG_MPC5516)
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616 /* Disable pipelined reads when flash options are changed. */
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617 FLASH.MCR.B.PRD = 1;
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619 /* Enable master prefetch for e200z1 and eDMA. */
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620 FLASH.PFCRP0.B.M0PFE = 1;
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621 FLASH.PFCRP0.B.M2PFE = 1;
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623 /* Address pipelining control. Must be set to the same value as RWSC. */
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624 FLASH.PFCRP0.B.APC = 2;
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625 FLASH.PFCRP0.B.RWSC = 2;
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627 /* Write wait states. */
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628 FLASH.PFCRP0.B.WWSC = 1;
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630 /* Enable data prefetch. */
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631 FLASH.PFCRP0.B.DPFEN = 1;
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633 /* Enable instruction prefetch. */
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634 FLASH.PFCRP0.B.IPFEN = 1;
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636 /* Prefetch algorithm. */
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637 /* TODO: Ask Freescale about this option. */
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638 FLASH.PFCRP0.B.PFLIM = 2;
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640 /* Enable line read buffers. */
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641 FLASH.PFCRP0.B.BFEN = 1;
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643 /* Enable pipelined reads again. */
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644 FLASH.MCR.B.PRD = 0;
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645 #elif defined(CFG_MPC5554) || defined(CFG_MPC5567)
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646 //TODO: Lägg till flash för mpc5554 &67
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650 void McuE_EnableInterrupts(void)
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655 void McuE_DisableInterrupts(void)
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