u2440mon.c

这是飞凌TE2410开发板的Bootloader源程序。

	
	//Delay(30000);
	Lcd_Tft_LTV350QV_F05_Init();//by pht.	

	download_run=1; //The default menu is the Download & Run mode.

	while(1)
	{
		if(menuUsed==1)Menu();
		WaitDownload();	
	}

}



void Menu(void)
{
	
	U8 key;
	menuUsed=1;
	while(1)
	{
#if 0
		Uart_Printf("\n +------------------------------------------------------------+\n");
		Uart_Printf(" |                    BOOTLOADER菜单                          |\n");
		Uart_Printf(" +------------------------------------------------------------+\n");
		Uart_Printf(" | [0] 下载并运行                                             |\n");
		Uart_Printf(" | [1] 下载到FLASH                                            |\n");

		Uart_Printf(" | [2] 用串口下载                                             |\n");
		Uart_Printf(" | [3] 启动应用程序                                           |\n");
		Uart_Printf(" | [4] 启动LINUX                                              |\n");

		Uart_Printf(" | [5] 启动WINCE                                              |\n");	
		Uart_Printf(" | [6] 擦除FLASH                                              |\n");
		Uart_Printf(" | [7] 设置参数                                               |\n");
		Uart_Printf(" +------------------------------------------------------------+\n");
#else		
		Uart_Printf("\n +------------------------------------------------------------+\n");
		Uart_Printf(" |                     Select Menu                            |\n");
		Uart_Printf(" +------------------------------------------------------------+\n");
		Uart_Printf(" | [0] Download & Run                                         |\n");
		Uart_Printf(" | [1] Download to flash                                      |\n");

		Uart_Printf(" | [2] Download From UART                                     |\n");
		Uart_Printf(" | [3] Boot My Application                                    |\n");
		Uart_Printf(" | [4] Boot Linux                                             |\n");

		Uart_Printf(" | [5] Boot Wince                                             |\n");	
		Uart_Printf(" | [6] Erase Flash Partition                                  |\n");
		Uart_Printf(" | [7] Config parameters                                      |\n");
		Uart_Printf(" +------------------------------------------------------------+\n");
		
#endif
		key=Uart_Getch();
		
		switch(key)
		{
		case '0':
			Uart_Printf("\nDownload&Run is selected.\n\n");
			download_run=1;
			return;
		case '1':
			download_run=0;
			NandWrite();
		/*
			Uart_Printf("\nDownload Only is selected.\n");
			Uart_Printf("Enter a new temporary download address(0x3...):");
			tempDownloadAddress=Uart_GetIntNum();
			download_run=0;
			Uart_Printf("The temporary download address is 0x%x.\n\n",tempDownloadAddress);
			return;
		*/
			break;
		case '2':
			comdownload();
			break;
		case '3':
			NandLoadRun_App();

		case '4':
			NandLoadRun();
			break;
		case '5':
			NandLoadRun_wince();
			break;
		case '6':
			NandErase();
			break;
		case '7':
			set_params();
			break;
		default:
			break;
		}	
	}		

}



void WaitDownload(void)
{
	U32 i;
	U32 j;
	U16 cs;
	U32 temp;
	U16 dnCS;
	int first=1;
	float time;
	U8 tempMem[16];
	U8 key;
	
	checkSum=0;
	downloadAddress=(U32)tempMem; //_RAM_STARTADDRESS; 
	downPt=(unsigned char *)downloadAddress;
	//This address is used for receiving first 8 byte.
	downloadFileSize=0;
	
#if 0
	MMU_DisableICache(); 
		//For multi-ICE. 
		//If ICache is not turned-off, debugging is started with ICache-on.
#endif

	/*******************************/
	/*	Test program download	*/
	/*******************************/
	j=0;

	if(isUsbdSetConfiguration==0)
	{
		//Uart_Printf("  USB host is not connected yet.\n");
	}

	while(downloadFileSize==0)
	{
		if(first==1 && isUsbdSetConfiguration!=0)
		{
			//Uart_Printf("  USB host is connected. Waiting a download.\n");
			first=0;
		}

	if(j%0x100000==0)Led_Display(0x8);
	if(j%0x100000==0x80000)Led_Display(0x0);
	j++;

	key=Uart_GetKey();
	if(autorun_trig)
		AutoNandLoadRun();	//run it in svc mode
	if(key!=0)
	{
		autorun_ds = 1;
		//printf("disable autorun\n");
		Menu();
			first=1; //To display the message,"USB host ...."
//在串口下载返回后downloadFileSize不为0,因此不能再执行USB下载!
	}
	}
	
	autorun_ds = 1;
	//printf("disable autorun\n");
	
	Timer_InitEx();	  
	Timer_StartEx();  

#if USBDMA	

	rINTMSK&=~(BIT_DMA2);  

	ClearEp3OutPktReady(); 
		// indicate the first packit is processed.
		// has been delayed for DMA2 cofiguration.

	if(downloadFileSize>EP3_PKT_SIZE)
	{
		if(downloadFileSize<=(0x80000))
		{
	  		ConfigEp3DmaMode(downloadAddress+EP3_PKT_SIZE-8,downloadFileSize-EP3_PKT_SIZE);
 
	  		//will not be used.
/*	   rDIDST2=(downloadAddress+downloadFileSize-EP3_PKT_SIZE);  
		   rDIDSTC2=(0<<1)|(0<<0);  
		rDCON2=rDCON2&~(0xfffff)|(0);				
*/
		}
	  	else
	  	{
	  		ConfigEp3DmaMode(downloadAddress+EP3_PKT_SIZE-8,0x80000-EP3_PKT_SIZE);
	  		//2440比2410的DIDSTCx寄存器多了中断产生条件的控制位,USB的DMA传输为字节计数
	  		//防止高频开cache运行时下载大于0x80000字节文件时IsrDma2出错!!!
	  		//while((rDSTAT2&0xfffff)==(0x80000-EP3_PKT_SIZE));
	  		while(!(rDSTAT2&(1<<20)));	//防止DMA传输尚未开始就写入下一次重装值!!!
			if(downloadFileSize>(0x80000*2))//for 1st autoreload
			{
				rDIDST2=(downloadAddress+0x80000-8);  //for 1st autoreload.
			 rDIDSTC2=(1<<2)|(0<<1)|(0<<0);  
				rDCON2=rDCON2&~(0xfffff)|(0x80000);			  

  		while(rEP3_DMA_TTC<0xfffff)
  		{
  			rEP3_DMA_TTC_L=0xff; 
  			rEP3_DMA_TTC_M=0xff;
  			rEP3_DMA_TTC_H=0xf;
  		}
			}	
 		else
 		{
 			rDIDST2=(downloadAddress+0x80000-8);  //for 1st autoreload.
	  			rDIDSTC2=(1<<2)|(0<<1)|(0<<0);  
 			rDCON2=rDCON2&~(0xfffff)|(downloadFileSize-0x80000); 		

  		while(rEP3_DMA_TTC<0xfffff)
  		{
  			rEP3_DMA_TTC_L=0xff; 
  			rEP3_DMA_TTC_M=0xff;
  			rEP3_DMA_TTC_H=0xf;
  		}
		}
	}
 	totalDmaCount=0;
	}
	else
	{
	totalDmaCount=downloadFileSize;
	}
#endif

	Uart_Printf("\nNow, Downloading [ADDRESS:%xh,TOTAL:%d]\n",
			downloadAddress,downloadFileSize);
	Uart_Printf("RECEIVED FILE SIZE:%8d",0);
   
#if USBDMA	
	j=0x10000;

	while(1)
	{
		if( (rDCDST2-(U32)downloadAddress+8)>=j)
	{
		Uart_Printf("\b\b\b\b\b\b\b\b%8d",j);
   		j+=0x10000;
		}
	if(totalDmaCount>=downloadFileSize)break;
	}

#else
	j=0x10000;

	while(((U32)downPt-downloadAddress)<(downloadFileSize-8))
	{
	if( ((U32)downPt-downloadAddress)>=j)
	{
		Uart_Printf("\b\b\b\b\b\b\b\b%8d",j);
   		j+=0x10000;
	}
	}
#endif

	time=Timer_StopEx();
	
	Uart_Printf("\b\b\b\b\b\b\b\b%8d",downloadFileSize);	
	Uart_Printf("\n(%5.1fKB/S,%3.1fS)\n",(float)(downloadFileSize/time/1000.),time);
	
#if USBDMA	
	/*******************************/
	/*	 Verify check sum		*/
	/*******************************/

	Uart_Printf("Now, Checksum calculation\n");

	cs=0;	
	i=(downloadAddress);
	j=(downloadAddress+downloadFileSize-10)&0xfffffffc;
	while(i<j)
	{
		temp=*((U32 *)i);
		i+=4;
		cs+=(U16)(temp&0xff);
		cs+=(U16)((temp&0xff00)>>8);
		cs+=(U16)((temp&0xff0000)>>16);
		cs+=(U16)((temp&0xff000000)>>24);
	}

	i=(downloadAddress+downloadFileSize-10)&0xfffffffc;
	j=(downloadAddress+downloadFileSize-10);
	while(i<j)
	{
  	cs+=*((U8 *)i++);
	}
	
	checkSum=cs;
#else
	//checkSum was calculated including dnCS. So, dnCS should be subtracted.
	checkSum=checkSum - *((unsigned char *)(downloadAddress+downloadFileSize-8-2))
		 - *( (unsigned char *)(downloadAddress+downloadFileSize-8-1) );	
#endif	  

	dnCS=*((unsigned char *)(downloadAddress+downloadFileSize-8-2))+
	(*( (unsigned char *)(downloadAddress+downloadFileSize-8-1) )<<8);

	if(checkSum!=dnCS)
	{
	Uart_Printf("Checksum Error!!! MEM:%x DN:%x\n",checkSum,dnCS);
	return;
	}

	Uart_Printf("Download O.K.\n\n");
	Uart_TxEmpty(consoleNum);


	if(download_run==1)
	{
		register void(*run)(void);	//使用寄存器变量以防止禁止DCACHE后数据不一致!!!
		rINTMSK=BIT_ALLMSK;
		run=(void (*)(void))downloadAddress;	//使用DCACHE且RW区也在CACHE区间downloadAddress会在cache中
		{	
			MMU_DisableDCache();	//download program must be in 
    		MMU_DisableICache();	//non-cache area
    		MMU_InvalidateDCache();	//使所有DCACHE失效,本程序的MMU_Init中将会刷新DCACHE到存储器,
    								//为使应用此MMU_Init方式的程序能被正确运行必须先使DCACHE失效!!!
    		MMU_DisableMMU();
    		//call_linux(0, 193, downloadAddress);	//或不用上面3个函数而直接使用call_linux
		}
	run();
	}
}




void Isr_Init(void)
{
	pISR_UNDEF=(unsigned)HaltUndef;
	pISR_SWI  =(unsigned)HaltSwi;
	pISR_PABORT=(unsigned)HaltPabort;
	pISR_DABORT=(unsigned)HaltDabort;
	rINTMOD=0x0;	  // All=IRQ mode
	rINTMSK=BIT_ALLMSK;	  // All interrupt is masked.

	//pISR_URXD0=(unsigned)Uart0_RxInt;	
	//rINTMSK=~(BIT_URXD0);   //enable UART0 RX Default value=0xffffffff

#if 1
	pISR_USBD =(unsigned)IsrUsbd;
	pISR_DMA2 =(unsigned)IsrDma2;
#else
	pISR_IRQ =(unsigned)IsrUsbd;	
		//Why doesn't it receive the big file if use this. (???)
		//It always stops when 327680 bytes are received.
#endif	
	ClearPending(BIT_DMA2);
	ClearPending(BIT_USBD);
	//rINTMSK&=~(BIT_USBD);  
   
	//pISR_FIQ,pISR_IRQ must be initialized
}


void HaltUndef(void)
{
	Uart_Printf("Undefined instruction exception!!!\n");
	while(1);
}

void HaltSwi(void)
{
	Uart_Printf("SWI exception!!!\n");
	while(1);
}

void HaltPabort(void)
{
	Uart_Printf("Pabort exception!!!\n");
	while(1);
}

void HaltDabort(void)
{
	Uart_Printf("Dabort exception!!!\n");
	while(1);
}


void ClearMemory(void)
{
	
	
	int memError=0;
	U32 *pt;
	
	//
	// memory clear
	//
	Uart_Printf("Clear Memory (%xh-%xh):WR",_RAM_STARTADDRESS,HEAPEND);

	pt=(U32 *)_RAM_STARTADDRESS;
	while((U32)pt < HEAPEND)
	{
		*pt=(U32)0x0;
		pt++;
	}
	
	if(memError==0)Uart_Printf("\b\bO.K.\n");
}

void Clk0_Enable(int clock_sel)	
{	// 0:MPLLin, 1:UPLL, 2:FCLK, 3:HCLK, 4:PCLK, 5:DCLK0
	rMISCCR = rMISCCR&~(7<<4) | (clock_sel<<4);
	rGPHCON = rGPHCON&~(3<<18) | (2<<18);
}
void Clk1_Enable(int clock_sel)
{	// 0:MPLLout, 1:UPLL, 2:RTC, 3:HCLK, 4:PCLK, 5:DCLK1	
	rMISCCR = rMISCCR&~(7<<8) | (clock_sel<<8);
	rGPHCON = rGPHCON&~(3<<20) | (2<<20);
}
void Clk0_Disable(void)
{
	rGPHCON = rGPHCON&~(3<<18);	// GPH9 Input
}
void Clk1_Disable(void)
{
	rGPHCON = rGPHCON&~(3<<20);	// GPH10 Input
}