syslib.c

菲利普22系列 vxworks bsp 可以用来可以和其他版本的ARM vxworks bsp（特别是7内核的进行比较）进行比较可以加深对BSP的理解和掌握

/* sysLib.c - Samsung SBC ARM7 system-dependent routines */


/* Copyright 1984-2002 Wind River Systems, Inc. */
#include "copyright_wrs.h"
#include "smartarm.h"
/*
modification history
--------------------
01o,29jul04,a_m  BSP定制 for 精英arm7开发板
01k,26mar02,m_h  rename glbEnetAddr to sysSngks32cMacAddr
01j,17jan02,m_h  fix cache issues and diab build warnings
01i,27sep01,m_h  base MAC address on user DIP setting, Big Endian Support
01h,23jul01,m_h  builds in UNIX
01g,17jul01,g_h  add visionWARE 2.00 support
01f,11jul01,g_h  disable cache in sysToMonitor()
01e,10jul01,g_h  add INCLUDE_LCD & INCLUDE_LED & INCLUDE_NETWORK macros
01d,09jul01,g_h  add #include "sbcCksum.c" instead of the makefile
01c,26apr01,m_h  convert tabs to spaces for readability
01b,25apr01,m_h  add comments to cache functions
01a,12apr01,m_h  created from snds100 template.
*/

/*
DESCRIPTION
This library provides board-specific routines for the WindRiver SBC ARM7
Ver 1.0 Development Board BSP for the Samsung KS32C chip.

It #includes the following chip drivers:
    nullVme.c         -     dummy VMEbus routines
    lpc2210Timer.c   -     SNGKS32CARM7 timer driver
    lpc2210IntrCtl.c -     SNGKS32CARM7 interrupt controller driver
    nullNvRam.c       -     dummy NVRAM routines

It #includes the following BSP files:
    sysSerial.c       -     serial device initialization routines
    sysEnd.c          -     END network driver support routines.

INCLUDE FILES: sysLib.h string.h intLib.h taskLib.h vxLib.h muxLib.h

SEE ALSO:
<Configuration>
<ARM Architecture Reference Manual>,
<Samsung KS32C50100 Microcontroller User's Manual>,
<Samsung KS32C5000(A)/50100 Microcontroller Application Notes>
*/

/* includes */

#include "vxWorks.h"
#include "config.h"

#include "sysLib.h"
#include "string.h"
#include "intLib.h"
#include "taskLib.h"
#include "vxLib.h"
#include "muxLib.h"
#include "cacheLib.h"
#include "memLib.h"

#include "wrSbcArm7.h"

#include "lpc2210.h"

/* imports */

IMPORT char end;                            /* end of system, created by ld */
IMPORT VOIDFUNCPTR _func_armIntStackSplit;  /* ptr to fn to split stack */


/* globals */

int    sysBus         = BUS;            /* system bus type (VME_BUS, etc) */
int    sysCpu         = CPU;            /* system cpu type */
char * sysBootLine    = BOOT_LINE_ADRS; /* address of boot line */
char * sysExcMsg      = EXC_MSG_ADRS;   /* catastrophic message area */
int    sysProcNum;                      /* processor number of this cpu */
int    sysFlags;                        /* boot flags */
char   sysBootHost [BOOT_FIELD_LEN];    /* name of host from which we booted */
char   sysBootFile [BOOT_FIELD_LEN];    /* name of file from which we booted */

CACHE_FUNCS   sngks32cCacheFuncs;
/*  : sysSngks32cMacAddr->ne2000EnetAddr */
unsigned char ne2000EnetAddr[] = ETHERNET_MAC_ADRS;

/* locals */


/* defines */

    
/* externals */

IMPORT void   lpc2210IntDevInit (void);
IMPORT void   sysIntStackSplit (char *, long);

/*local defines*/
#ifndef SBCARM7_CTRL_REG_READ
#   define SBCARM7_CTRL_REG_READ(x,result) \
        ((result) = *(volatile UINT32 *)(x))
#endif    /*SBCARM7_READ*/

#ifndef SBCARM7_CTRL_REG_WRITE
#   define SBCARM7_CTRL_REG_WRITE(x,data) \
        (*((volatile UINT32 *)(x)) = (data))
#endif /*SBCARM7_WRITE*/



/* globals */


/* forward LOCAL functions declarations */


/* forward declarations */

char *    sysPhysMemTop (void);

/* included source files */

#ifdef INCLUDE_FLASH
#include "flashMem.c"
#else /* INCLUDE_FLASH */
#include "mem/nullNvRam.c"
#endif  /* INCLUDE_FLASH */

#include "vme/nullVme.c"
#include "sysSerial.c"
#include "lpc2210Timer.c"
#include "lpc2210IntrCtl.c"

#ifdef INCLUDE_NETWORK
#ifdef INCLUDE_END
#include "sbcCksum.c"
#include "sysEnd.c"
#endif /* INCLUDE_END */
#endif /* INCLUDE_NETWORK */

#ifdef INCLUDE_LCD
#include "sysLcd.c"
#endif /* INCLUDE_LCD */

#ifdef INCLUDE_LED
#include "sysLed.c"
#endif /* INCLUDE_LCD */

#ifdef INCLUDE_VWARE_LAUNCH
#include "sysVware.c"
#endif /* INCLUDE_VWARE_LAUNCH */

/*  : added */
extern void excEnterUndef(void);
extern void excEnterSwi(void);
extern void excEnterPrefetchAbort(void);
extern void excEnterDataAbort(void);
extern void intEnt(void);

/******************************************************************************
*
* portInit - 针对硬板,初始化CPU各端口
* 
*/
static void portInit(void)
{
    /* 蜂鸣器*/
    IO0DIR = BEEPCON;
    IO0SET = BEEPCON;
    IO2DIR = LEDCON;
    IO2SET = LEDCON;

    PINSEL0 = 0x05;                 /* P0.0 and P0.1 are set to UART0 */
    PINSEL1 = 3<<8;                 /* ExtInt3连到P0.20 */
    EXTMODE = 0x08;                /* ExtInt3沿触发*/
    EXTPOLAR = 0;               /* 下降沿触发*/
    EXTINT = 0xf;                  /* 清除ExtInt的中断标志*/
}

#if 0
/******************************************************************************
*
* rtl8019Init - RTL8019网络芯片初始化(与NE2000不兼容)
* loopDelay - 循环延时函数,每个时间单位为100us
*/
static int delayLoopCount = 400;
static void loopDelay(int time)
{
  int i;
  for(;time>0;time--)
    for(i=0;i<delayLoopCount;i++);
}

void NetTest(void)
{
  unsigned char c[]={0x21,0x41,0xa1,0xe1};
  int i,j;
  volatile unsigned char *p =(volatile unsigned char *)(NETBASE);
  
  printf("Start NET Controller Test!\n");
  printf("Read registers from controller!\n");
  for (i=0; i<4; i++) 
  	{
    *(volatile unsigned char *)(p) = c[i];
    printf("\nPage%c:",'0'+i);
    for (j=0;j<16;j++) 
		{
          printf("%02X ",(int)(*(volatile unsigned char *)(p+j)));
        }
    }
  
  printf("\nFinish NET Controller Test!\n");
  *(NETBASE+0x00) = 0x22;
}

static void rtl8019Init(void)
{
  /*Reset MAC*/
  *CPLDREG1 |= 0x20;
  loopDelay(500);
  *CPLDREG1 &= 0xDF;
  loopDelay(100);
  *(NETBASE+0x1e) = *(NETBASE+0x1e + 0x20);
  loopDelay(100);
  /* Page 3 Set power status & msic*/
  *(NETBASE+0x00) = 0xc1;
  *(NETBASE+0x20) = 0xcf;	/**(NETBASE+0x20) = 0xc0;*/
  *(NETBASE+0x04) = 0x80;
  *(NETBASE+0x24) = 0x00;
  *(NETBASE+0x06) = 0x70;
  /**(NETBASE+0x26) = 0xFF;*//*07H TEST R/W Reserved, Do not write*/
  *(NETBASE+0x20) = 0x0f;	/*关闭写允许*/
}

/******************************************************************************
*
* sysInByte,sysOutByte,sysInWordString,sysOutWordString
*
* NE2000驱动需要的输入输出函数.
* 
* 注意:sysInWordString和sysOutWordString的端口地址不累加,使用8位操作.
*/
unsigned char sysInByte	(unsigned long port)
{
	return (REG8(port));
}
void	sysOutByte	(unsigned long port, unsigned char data)
{
	REG8(port) = data;
}
void	sysInWordString	(unsigned long port, unsigned short *pData, int count)
{
	int i, byte_count; char *pbyte;
	
	pbyte = (char *)pData;
	byte_count = count*2;	
	for(i=0; i<byte_count; i++){
		*(pbyte) = REG8(port);
		pbyte++;
	}
}
void	sysOutWordString(unsigned long port, unsigned short *pData, int count)
{
	int i, byte_count; char *pbyte;

	pbyte = (char *)pData;
	byte_count = count*2;	
	for(i=0; i<byte_count; i++){
		REG8(port) = *(pbyte);
		pbyte++;
	}
}
#endif

/******************************************************************************
*
* sysModel - return the model name of the CPU board
*
* This routine returns the model name of the CPU board.
* 
* RETURNS: A pointer to a string identifying the board and CPU.
*/

char *sysModel (void)
{
    /*return    "wrSbcArm7 - ARM7TDMI (ARM)";*/
    /*  : deleted and added */
    return    "LPC2210 - ARM7TDMI (ARM,not Thumb) Little Endian";		

}

/******************************************************************************
*
* sysBspRev - return the bsp version with the revision eg 1.1/<x>
*
* This function returns a pointer to a bsp version with the revision.
* for eg. 1.1/<x>. BSP_REV is concatenated to BSP_VERSION to form the
* BSP identification string.
*
* RETURNS: A pointer to the BSP version/revision string.
*/

char * sysBspRev (void)
    {
    return (BSP_VERSION BSP_REV);
    }

/******************************************************************************
*
* sysHwInit - initialize the CPU board hardware
*
* This routine initializes various features of the hardware.
* Normally, it is called from usrInit() in usrConfig.c.
*
* NOTE: This routine should not be called directly by the user.
*
* RETURNS: N/A
*/

void sysHwInit (void)
{
    /*  : added */
    portInit();
/*    rtl8019Init();    */
	
    /* install the IRQ/SVC interrupt stack splitting routine */

    _func_armIntStackSplit = sysIntStackSplit;
#ifdef INCLUDE_LCD	/*  : added */
    sysLcdInit(); /* initialize the LCD panel */

    sysLcdWriteString("   WindRiver    ", 1, 1);
#if (_BYTE_ORDER == _LITTLE_ENDIAN)
#if   (CPU == ARMARCH4)
    sysLcdWriteString("   SBC ARM7     ", 2, 1);
#else  /* ARMARCH4 */
    sysLcdWriteString("   SBC ARM7 (t) ", 2, 1);
#endif  /* ARMARCH4 */
#else /* (_BYTE_ORDER == _LITTLE_ENDIAN) */

#endif /* (_BYTE_ORDER == _LITTLE_ENDIAN) */
#endif /*INCLUDE_LCD*/
#ifdef INCLUDE_LED	/*  : added */
    sysLedInit(); /* initialize the LED */
#endif /*INCLUDE_LED*/
    /* Set the MAC address based on DIP setting
     * The least significant byte of the address is changed to
     * the value of the user DIP switch setting. SW4-D0 is the
     * least significant bit of this byte.  We invert the bits
     * so Open=0.
     */

    /*sysSngks32cMacAddr[5] = ~READ_USERDIP();*/	/*  : deleted */

#ifdef  FORCE_DEFAULT_BOOT_LINE
    strncpy(sysBootLine,DEFAULT_BOOT_LINE,strlen(DEFAULT_BOOT_LINE)+1);
#elif defined INCLUDE_VWARE_LAUNCH
    sysVwareBuildBootLine((char*)&sysSngks32cMacAddr);