bootinit.s

vxwork操作系统的相关内容

 








 
 
 
 
 

 




 
 
 
 
 

 








 






 

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extern void sysHwInit0 (void);




 





 





 


 
  
 






 












 


   





















 





 









  












 

 


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# 296 "config.h" 2



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# 119 "bootinit.c" 2

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extern int *	__errno(void);





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# 120 "bootinit.c" 2

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# 248 "d:/tornado2.2-arm/target/h/sioLib.h"

# 121 "bootinit.c" 2








 













extern void	romInit ();
extern STATUS	inflate ();
extern void	usrInit ();

extern void	sysInit ();

extern void	sysInitAlt ();
extern void	start ();

extern UCHAR	binArrayStart [];	 
extern UCHAR	binArrayEnd [];		 
extern char	etext [];		 
extern char	end [];			 
extern UCHAR	wrs_kernel_data_start [];   
extern UCHAR	wrs_kernel_data_end [];     












 










 



 	 



 

static void copyLongs (register UINT *source, register UINT *destination, UINT nlongs);

static void fillLongs (register UINT *buf, UINT nlongs, register UINT val);





 
# 211 "bootinit.c"



extern 

































int nandReadPage(unsigned int block,unsigned int page,unsigned char *buffer)
{
    int i;
    unsigned int blockPage;
    unsigned char  ecc0,ecc1,ecc2;
    unsigned char  *bufPt=buffer;
    unsigned char  se[16];     
    
    page=page&0x1f;
    blockPage=(block<<5)+page;
     {(*(volatile unsigned *)0x4e000000)|=(1<<12);};  
    
     {(*(volatile unsigned *)0x4e000000)&=~(1<<11);};    
     {(*(volatile unsigned char  *)0x4e000004)=0x00;};  
     {(*(volatile unsigned char  *)0x4e000008)=0;};   
     {(*(volatile unsigned char  *)0x4e000008)=blockPage&0xff;};       
     {(*(volatile unsigned char  *)0x4e000008)=(blockPage>>8)&0xff;};  
     {(*(volatile unsigned char  *)0x4e000008)=(blockPage>>16)&0xff;}; 

    for(i=0;i<10;i++);
    
     {while(!((*(volatile unsigned *)0x4e000010)&(1<<0)));};   
    for(i=0;i<512;i++)
    {
        *bufPt++=((*(volatile unsigned char  *)0x4e00000c));  
    }
    ecc0=(*(volatile unsigned char   *)0x4e000014);
    ecc1=(*(volatile unsigned char   *)0x4e000015);
    ecc2=(*(volatile unsigned char   *)0x4e000016);
    for(i=0;i<16;i++)
    {
        se[i]=((*(volatile unsigned char  *)0x4e00000c));
    }

     {(*(volatile unsigned *)0x4e000000)|=(1<<11);};    

    if(ecc0==se[0] && ecc1==se[1] && ecc2==se[2])
    {
        return 1;
    }
    else
    {
        return -1;
    }       
}

int nandLoadBootrom()	 
{
 	 
	int i;
	int iBlock=0,iPage=0,iSize=0;
	unsigned char *iDes=(unsigned char *)0x33e00000;
	(*(volatile unsigned *)0x4e000000)=(1<<15)|(1<<14)|(1<<13)|(1<<12)|(1<<11)|(0<<8)|(3<<4)|(0<<0); 
	    
     {(*(volatile unsigned *)0x4e000000)&=~(1<<11);};

     {(*(volatile unsigned char  *)0x4e000004)=0xFF;};   

    for(i=0;i<10;i++);  

     {while(!((*(volatile unsigned *)0x4e000010)&(1<<0)));};     
     
     {(*(volatile unsigned *)0x4e000000)|=(1<<11);};
    
	while(iSize < ((UINT)wrs_kernel_data_end-(UINT)romInit)) {	
	
		((FUNCPTR)(((UINT)nandReadPage - (UINT)romInit) + 0x00000000))(iBlock,iPage,iDes);
		iPage++;	
		if(iPage >= 32) {
			iPage=0;
			iBlock++;
		}
		iDes += 512;
		iSize += 512;
	}
	return 1;
}



void romStart
    (
    register int startType		 
    )

    {


    volatile			 

    FUNCPTR absEntry;		 


	VOIDFUNCPTR ramfillLongs = (VOIDFUNCPTR)(((UINT)fillLongs - (UINT)romInit) + 0x00000000);









     





# 371 "bootinit.c"















	((FUNCPTR)(((UINT)nandLoadBootrom - (UINT)romInit) + 0x00000000))();







# 428 "bootinit.c"






     

    if (startType & 0x02)
	{
# 452 "bootinit.c"


	ramfillLongs((UINT *)((0x30000000 + 0)),
		((UINT)romInit - 512 - (UINT)(0x30000000 + 0)) /
		sizeof(long), 0);
# 457 "bootinit.c"





	ramfillLongs((UINT *)((UINT)romInit + ((UINT)wrs_kernel_data_end-(UINT)romInit)),
		    ((UINT)(0x30000000 + 0x04000000 - 0x1000) - ((UINT)romInit + ((UINT)wrs_kernel_data_end-(UINT)romInit)))
		    / sizeof(long), 0);
# 465 "bootinit.c"















	 




	*(((char *) (0x30000000+0x700))) = '\0';
	}



     






	absEntry = (FUNCPTR)sysInit;	 





# 522 "bootinit.c"






    (absEntry) (startType);
    }










 






static void copyLongs (source, destination, nlongs)
    register UINT *source;		 
    register UINT *destination;	 
    UINT nlongs;		 

    {
    register UINT *dstend = destination + nlongs;
    register UINT nchunks;

     
    for (nchunks = nlongs / 8; nchunks; --nchunks)
	{
# 568 "bootinit.c"

	destination[0] = source[0];
	destination[1] = source[1];
	destination[2] = source[2];
	destination[3] = source[3];
	destination[4] = source[4];
	destination[5] = source[5];
	destination[6] = source[6];
	destination[7] = source[7];
	destination += 8, source += 8;

	}

     
    while (destination < dstend)
	*destination++ = *source++;
    }


 






static void fillLongs (buf, nlongs, val)
    register UINT *buf;	 
    UINT nlongs;	 
    register UINT val;	 

    {
    register UINT *bufend = buf + nlongs;
    register UINT nchunks;

     
    for (nchunks = nlongs / 8; nchunks; --nchunks)
	{
# 615 "bootinit.c"

	buf[0] = val;
	buf[1] = val;
	buf[2] = val;
	buf[3] = val;
	buf[4] = val;
	buf[5] = val;
	buf[6] = val;
	buf[7] = val;
	buf += 8;

	}

     
    while (buf < bufend)
	*buf++ = val;
    }


# 655 "bootinit.c"