bootmain.c
来自「s3c2440 bootloader适用于S3C2440开发板」· C语言 代码 · 共 1,058 行 · 第 1/2 页
C
1,058 行
/*******************************/
/* 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%0x50000==0)Led_Display(0x6);
if(j%0x50000==0x28000)Led_Display(0x9);
j++;
key = Uart_GetKey();
if(autorun_trig)
NandLoadRun(); //run it in svc mode
if(key!=0)
{
autorun_ds = 1;
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;
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);
}
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!!! hzh
//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!!! hzh
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");
{
U32 launch;
if(!RelocateNKBIN(downloadAddress, (U32 *)&downloadAddress, (U32 *)&downloadFileSize, &launch)) {
boot_params.run_addr.val = launch;
boot_params.initrd_addr.val = downloadAddress;
boot_params.initrd_len.val = downloadFileSize;
if(download_run == 0){ // 如果是 auto_nk 保存参数
Uart_Printf("\nSave_params Now, boot_params.run_addr.val:%xh,boot_params.initrd_addr.val:%xh,boot_params.initrd_len.val:%xh,\n",
launch,downloadAddress,downloadFileSize);
save_params(); // 保存参数
}/* else { // 如果是下载了 NK.bin返回主界面
Uart_Printf("Please Choose NK.nb0 to Donw&&Run!..........\n");
download_run = 0;
downloadFileSize = 0;
return;
}*/
}
if(boot_params.start.val < 2){
if(*(U32*)(downloadAddress+0x24) == 0x16f2818){ //kernel
boot_params.run_addr.val = 0x30008000;
//printf("magic=0x%x\n", (*(U32*)(downloadAddress+0x24)));
boot_params.initrd_len.val = downloadFileSize;
save_params();
// Uart_Printf("boot_params.run_addr.val=%x!\n", boot_params.run_addr.val);
}
else //jffs2_root-fs
jffs2 = 1;
}
if(auto_nk==1 && downloadFileSize)
NandWrite();
}
if(download_run==1) // 如果是下载运行。
{
rINTMSK=BIT_ALLMSK;
call_os(0, 0, DOWN_RUN_ADDR); //或不用上面3个函数而直接使用call_os
}
}
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.
#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);
//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
}
/*
static U8 dm9000_ior(int reg)
{
*(volatile U8 *)DM9000_BASE = reg;
return *(volatile U8 *)(DM9000_BASE+DM9000_DATA_OFFSET);
}
static void rd_dm9000_id(void)
{
U16 id;
id = dm9000_ior(0x28) | (dm9000_ior(0x29)<<8);
printf("read dm9000 vid = 0x%x\n", id);
id = dm9000_ior(0x2a) | (dm9000_ior(0x2b)<<8);
printf("read dm9000 pid = 0x%x\n", id);
id = dm9000_ior(0x8) | (dm9000_ior(0x9)<<8);
printf("read dm9000 reg(0x09,0x08) = 0x%x\n", id);
printf("dm9000 isr = 0x%x\n", dm9000_ior(0xfe));
}
static void buzzer(int freq, int ms)
{
rGPBCON &= ~3; //set GPB0 as tout0, pwm output
rGPBCON |= 2;
rTCFG0 &= ~0xff;
rTCFG0 |= 15; //prescaler = 15+1
rTCFG1 &= ~0xf;
rTCFG1 |= 2; //mux = 1/8
rTCNTB0 = (PCLK>>7)/freq;
rTCMPB0 = rTCNTB0>>1; // 50%
rTCON &= ~0x1f;
rTCON |= 0xb; //disable deadzone, auto-reload, inv-off, update TCNTB0&TCMPB0, start timer 0
rTCON &= ~2; //clear manual update bit
mdelay(ms);
rGPBCON &= ~3; //set GPB0 as output
rGPBCON |= 1;
rGPBDAT &= ~1;
}
*/
/*
//关闭所有IO口控制的电源,将不用的IO口设置为输入并禁止上拉
static void ConfigPowerOffGPIO(void)
{
//CAUTION:Follow the configuration order for setting the ports.
// 1) setting value(GPnDAT)
// 2) setting control register (GPnCON)
// 3) configure pull-up resistor(GPnUP)
//32bit data bus configuration
// PORT A GROUP
//Ports : GPA22 GPA21 GPA20 GPA19 GPA18 GPA17 GPA16 GPA15 GPA14 GPA13 GPA12
//Signal : nFCE nRSTOUT nFRE nFWE ALE CLE nGCS5 nGCS4 nGCS3 nGCS2 nGCS1
//Binary : 1 0 1 , 1 1 1 1 , 1 1 1 1
//Ports : GPA11 GPA10 GPA9 GPA8 GPA7 GPA6 GPA5 GPA4 GPA3 GPA2 GPA1 GPA0
//Signal : ADDR26 ADDR25 ADDR24 ADDR23 ADDR22 ADDR21 ADDR20 ADDR19 ADDR18 ADDR17 ADDR16 ADDR0
//Binary : 1 1 1 1 , 1 1 1 1 , 1 1 1 0
rGPACON = 0x7fffff;
// PORT B GROUP
//Ports : GPB10 GPB9 GPB8 GPB7 GPB6 GPB5 GPB4 GPB3 GPB2 GPB1 GPB0
//Signal : nXDREQ0 nXDACK0 nXDREQ1 nXDACK1 nSS_KBD nDIS_OFF L3CLOCK L3DATA L3MODE nIrDATXDEN Keyboard
//Setting: INPUT OUTPUT INPUT OUTPUT INPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT OUTPUT
//Binary : 00 , 01 00 , 01 00 , 01 01 , 01 01 , 01 01
rGPBCON = 0x0;
rGPBUP = 0x7ff; // The pull up function is disabled GPB[10:0]
// PORT C GROUP
//Ports : GPC15 GPC14 GPC13 GPC12 GPC11 GPC10 GPC9 GPC8 GPC7 GPC6 GPC5 GPC4 GPC3 GPC2 GPC1 GPC0
//Signal : VD7 VD6 VD5 VD4 VD3 VD2 VD1 VD0 LCDVF2 LCDVF1 LCDVF0 VM VFRAME VLINE VCLK LEND
//Binary : 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10
rGPCCON = 0x0;
rGPCUP = 0xffff; // The pull up function is disabled GPC[15:0]
// PORT D GROUP
//Ports : GPD15 GPD14 GPD13 GPD12 GPD11 GPD10 GPD9 GPD8 GPD7 GPD6 GPD5 GPD4 GPD3 GPD2 GPD1 GPD0
//Signal : VD23 VD22 VD21 VD20 VD19 VD18 VD17 VD16 VD15 VD14 VD13 VD12 VD11 VD10 VD9 VD8
//Binary : 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 ,10 10
rGPDCON = 0x0;
rGPDUP = 0xffff; // The pull up function is disabled GPD[15:0]
// PORT E GROUP
//Ports : GPE15 GPE14 GPE13 GPE12 GPE11 GPE10 GPE9 GPE8 GPE7 GPE6 GPE5 GPE4
//Signal : IICSDA IICSCL SPICLK SPIMOSI SPIMISO SDDATA3 SDDATA2 SDDATA1 SDDATA0 SDCMD SDCLK I2SSDO
//Binary : 10 10 , 10 10 , 10 10 , 10 10 , 10 10 , 10 10 ,
//-------------------------------------------------------------------------------------------------------
//Ports : GPE3 GPE2 GPE1 GPE0
//Signal : I2SSDI CDCLK I2SSCLK I2SLRCK
//Binary : 10 10 , 10 10
rGPECON = 0x0;
rGPEUP = 0xffff; // The pull up function is disabled GPE[15:0]
// PORT F GROUP
//Ports : GPF7 GPF6 GPF5 GPF4 GPF3 GPF2 GPF1 GPF0
//Signal : nLED_8 nLED_4 nLED_2 nLED_1 nIRQ_PCMCIA EINT2 KBDINT EINT0
//Setting: Output Output Output Output EINT3 EINT2 EINT1 EINT0
//Binary : 01 01 , 01 01 , 10 10 , 10 10
rGPFCON = 0x0;
rGPFUP = 0xff; // The pull up function is disabled GPF[7:0]
// PORT G GROUP
//Ports : GPG15 GPG14 GPG13 GPG12 GPG11 GPG10 GPG9 GPG8 GPG7 GPG6
//Signal : nYPON YMON nXPON XMON EINT19 DMAMODE1 DMAMODE0 DMASTART KBDSPICLK KBDSPIMOSI
//Setting: nYPON YMON nXPON XMON EINT19 Output Output Output SPICLK1 SPIMOSI1
//Binary : 11 11 , 11 11 , 10 01 , 01 01 , 11 11
//-----------------------------------------------------------------------------------------
//Ports : GPG5 GPG4 GPG3 GPG2 GPG1 GPG0
//Signal : KBDSPIMISO LCD_PWREN EINT11 nSS_SPI IRQ_LAN IRQ_PCMCIA
//Setting: SPIMISO1 LCD_PWRDN EINT11 nSS0 EINT9 EINT8
//Binary : 11 11 , 10 11 , 10 10
rGPGCON = 0x0;
rGPGUP = 0xffff; // The pull up function is disabled GPG[15:0]
// PORT H GROUP
//Ports : GPH10 GPH9 GPH8 GPH7 GPH6 GPH5 GPH4 GPH3 GPH2 GPH1 GPH0
//Signal : CLKOUT1 CLKOUT0 UCLK nCTS1 nRTS1 RXD1 TXD1 RXD0 TXD0 nRTS0 nCTS0
//Binary : 10 , 10 10 , 11 11 , 10 10 , 10 10 , 10 10
rGPHCON = 0x0;
rGPHUP = 0x7ff; // The pull up function is disabled GPH[10:0]
//PORT J GROUP
//Ports : GPJ12 GPJ11 GPJ10 GPJ9 GPJ8 GPJ7 GPJ6 GPJ5 GPJ4 GPJ3 GPJ2 GPJ1 GPJ0
//Signal : CAMRESET CAMCLKOUT CAMHREF CAMVS CAMPCLKIN CAMD7 CAMD6 CAMD5 CAMD4 CAMD3 CAMD2 CAMD1 CAMD0
//Setting: Out Out Out Out Out Out Out Out Out Out Out Out Out
//Binary : 01 01 01 01 01 01 01 01 01 01 01 01 01
rGPJCON = 0x0;
rGPJUP = 0x1fff; // The pull up function is disabled GPJ[12:0]
// LcdBackLightOff();
}
static void EnterPowerOff(void)
{
U32 r;
Uart_TxEmpty(0); //Wait until UART0 Tx buffer empty.
ConfigPowerOffGPIO();
rEINTPEND = 1<<11; //clear EINT11
rEXTINT1 = 0; //EINT11 low-level interrupt
rEINTMASK = rEINTMASK&~(1<<11); //SRCPND:EINT8_23 will be set by EINT19 after wake-up.
ClearPending(BIT_EINT8_23|BIT_RTC);
rINTMSK = BIT_ALLMSK;
rRTCCON = 0x0; //R/W disable, 1/32768, Normal(merge), No reset
rADCCON |= (1<<2); //ADC additional power down
rGSTATUS3 = (U32)StartPointAfterSleepWakeUp;
rGSTATUS4 = 0xbe50dead;
//MISCCR[13:12] set usb port0,1 suspend
//MISCCR[2] Previous state at STOP(?) mode (???)
//MISCCR[1:0] D0~D31 pull-up disable
rMISCCR |= 0x3007;
rLCDCON1 &= ~1; //Before entering STOP mode, LCD must be off
//=================================================================
// VERY IMPORTANT NOTE
// To enter STOP/SLIDLE mode, MMU TLB-fill operation should be prohibited
// because MTT table is in SDRAM and SDRAM is in the self-refresh mode.
// So, we will fill TLB before entering SDRAM self-refresh
// instead of disabling MMU.
r = rREFRESH; //To fill TLB for the special register used in EnterPWDN
r = rCLKCON;
//=================================================================
//EnterPWDN(0x7fff8); //POWER_OFF mode
rCLKCON = 0x7fff8; //needn't set sdram sel-refresh, directly power-down
//Never return here.
}
*/
/*
static __irq void autorun_proc(void)
{
ClearPending(BIT_TIMER4);
if(autorun_ds)
DisableIrq(BIT_TIMER4);
autorun_10ms--;
if(!autorun_10ms) {
DisableIrq(BIT_TIMER4);
//CLR_IF(); //in irq service routine, irq is disabled
autorun_trig = 1;
//NandLoadRun();
}
}
static void init_autorun_timer(int sec)
{
U32 val = (PCLK>>4)/100-1;
autorun_10ms = sec*100;
pISR_TIMER4 = (U32)autorun_proc;
rTCFG0 &= ~(0xff<<8);
rTCFG0 |= 3<<8; //prescaler = 3+1
rTCFG1 &= ~(0xf<<16);
rTCFG1 |= 1<<16; //mux = 1/4
rTCNTB4 = val;
rTCON &= ~(0xf<<20);
rTCON |= 7<<20; //interval, inv-off, update TCNTB4&TCMPB4, start timer 4
rTCON &= ~(2<<20); //clear manual update bit
EnableIrq(BIT_TIMER4);
}
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