init.c

Windows CE 6.0 BSP for VOIP sample phone. Intel PXA270 platform.

//
// Copyright (c) Microsoft Corporation.  All rights reserved.
//
//
// Use of this sample source code is subject to the terms of the Microsoft
// license agreement under which you licensed this sample source code. If
// you did not accept the terms of the license agreement, you are not
// authorized to use this sample source code. For the terms of the license,
// please see the license agreement between you and Microsoft or, if applicable,
// see the LICENSE.RTF on your install media or the root of your tools installation.
// THE SAMPLE SOURCE CODE IS PROVIDED "AS IS", WITH NO WARRANTIES OR INDEMNITIES.
//
//------------------------------------------------------------------------------
//
//  File:  init.c
//
//  Plato board initialization code.
//
#include <bsp.h>

// External function prototypes.
//
extern TURN_ON_BTB(void);
extern void InitDebugSerial(UINT32 DbgSerPhysAddr);
extern void BSPPowerInit();


// Cache-related variables.
//
#define ZBANK_BASE_C_VIRTUAL        0x8A600000
DWORD CacheBufferFlag;  // NOTE: this needn't be a const variable and OEMCacheRangeFlush won't be called before KernelRe locate.
const LPVOID gpvCacheFlushBaseMemoryAddress = (LPVOID)ZBANK_BASE_C_VIRTUAL;

// Common timer routine constants.
//
const DWORD OEMTimerFreq     = OEM_CLOCK_FREQ;
const int OEMMinTickDistance = (OEM_CLOCK_FREQ / 20000);    // 50 us

/*
    Global:  dwOEMDrWatsonSize

    Global variable which specify DrWatson buffer size. It can be fixed
    in config.bib via FIXUPVAR.
 */
#define DR_WATSON_SIZE_NOT_FIXEDUP (-1)
DWORD dwOEMDrWatsonSize = DR_WATSON_SIZE_NOT_FIXEDUP;


//------------------------------------------------------------------------------
//
//  Function:  OEMInit
//
//  This is Windows CE OAL initialization function. It is called from kernel
//  after basic initialization is made.
//
void OEMInit()
{   
    OALMSG(0, (L"+OEMInit\r\n"));

    // Enable the branch-target buffer.
    //
    TURN_ON_BTB();

    OALLogSetZones(initialOALLogZones);

    // Set memory size for DrWatson kernel support.
    //
    dwNKDrWatsonSize = 0;
    if (dwOEMDrWatsonSize != DR_WATSON_SIZE_NOT_FIXEDUP) {
        dwNKDrWatsonSize = dwOEMDrWatsonSize;
    }

    // Intialize optional kernel functions.
    //
    pOEMIsProcessorFeaturePresent = OALIsProcessorFeaturePresent;

    // profiling support
    //
    g_pOemGlobal->pfnProfileTimerEnable  = OEMProfileTimerEnable;
    g_pOemGlobal->pfnProfileTimerDisable = OEMProfileTimerDisable;

    // Check clean boot flag in BSP Args area
    //
    {
      // This is the global shared Args flag
      BOOL *bCleanBootFlag = (BOOL*) OALArgsQuery(BSP_ARGS_QUERY_CLEANBOOT);

      if(*bCleanBootFlag)
      {
        OALMSG(1, (TEXT("OEM: Force clean boot.\r\n")));

        // Clear the flag so that we don't get here in the next boot unless it is set again.
        *bCleanBootFlag = FALSE;

        // Tell filesys.exe that we want a clean boot.
        NKForceCleanBoot();
      }
    }

    // Initialize interrupts.
    //
    if (!OALIntrInit())
    {
        OALMSG(OAL_ERROR, (L"ERROR: OEMInit: failed to initialize interrupts.\r\n"));
    }

    // Initialize system clock.
    //
    OALTimerInit(1, OEM_TICKS_1MS, OEM_TICK_COUNT_MARGIN);

    // Initialize the KITL connection if required.
    //
    KITLIoctl (IOCTL_KITL_STARTUP, NULL, 0, NULL, 0, NULL);
    //OALKitlStart();

    // Initialize power supply chip and suspend/resume functionality
    BSPPowerInit();

    OALMSG(1, (L"Platfrom Kernel Init. Complete!\r\n")); 

    OALMSG(0, (L"-OEMInit\r\n"));
}


VOID OALStall(UINT32 microSec)
{
    volatile PBULVERDE_OST_REG pOSTRegs = NULL;

    pOSTRegs = (PBULVERDE_OST_REG)OALPAtoVA(BULVERDE_BASE_REG_PA_OST, FALSE);

    XllpOstDelayMicroSeconds(pOSTRegs, microSec);
}


VOID OEMInitDebugSerial(void)
{
    UINT32 *pDbgSerPhysAddr = (UINT32*)BULVERDE_BASE_REG_PA_FFUART; //(UINT32*) OALArgsQuery(BSP_ARGS_QUERY_DBGSERIAL);

    if (pDbgSerPhysAddr)
    {
        InitDebugSerial((UINT32)pDbgSerPhysAddr);
    }
}

//------------------------------------------------------------------------------