main.c

Intel PXA270的bootloader程序,在linux环境下运行的.

#include <config.h>
#include <stdio.h>
#include <time.h>
#include <string.h>
#include <command.h>
#include <setup.h>
#include <version.h>


#define u16(x)  (volatile unsigned *)(x)
#define u32(x)  (volatile unsigned *)(x)

//#define GPSR0 *(volatile unsigned long *)(0x40e00018)
//#define GPCR0 *(volatile unsigned long *)(0x40e00024)
#define PWMCR0  *(volatile unsigned long *)(0x40b00000)
#define PWMDCR0 *(volatile unsigned long *)(0x40b00004)
#define PWMPCR0 *(volatile unsigned long *)(0x40b00008)


#define LED8  (*(volatile unsigned short *)(0x10500000))

extern void pxafb_disable(void);
extern bool eth_init(void);
extern bool uart_init(void);
extern bool config_init(void);
extern bool iflash_init(void);

extern void DisplayMenu(void);
extern void command_run(char *cCmd);
extern void set_filename(void);
extern void set_delaytime(void);
extern void set_default(void);
extern void tftp_Image(char *cImage);
extern void filename_init(void);

#include <board/xsbase270.h>

int main(void){
	int count;
	bool autoboot=true;
       //Audio, Rs232, LCD enable
        (*(volatile unsigned short  *)(0x0a000000)) |= (1<<9)|(1<<6)|(1<<15);
	LED8 = 0xff;        

        uart_init();
	time_init();
	config_init();

       	printf("\033[H\033[J\n");		// clear screen.
        printf(" Welcome to use %s Bootloader for XSBase270 board\n", PACKAGE);
        printf(" Copyright (C) 2002-2006 51Board Co,. Ltd.\n");
	printf(" Support : http://www.51Board.com\n");
	printf(" Version : %s\n", VERSION);
 
	iflash_init();

        PWMPCR0 = 0xff;
        PWMDCR0 = (0x4ff>>2);


        //let eth CS is ok
        (*(volatile unsigned long *)(0x4800000c)) = _MSC1_ED;

	eth_init();

	printf(" autoboot in progress, press any key to stop.\n");
	count = setup->delay * 1000;
	printf(" Boot delay %d seconds ", setup->delay);

	autoboot = true;
	if (count == 0)
	{
		count = 500;
	 	do {
			if (getc() != -1){ autoboot=false; break; }
			--count;
			mdelay(1);
		}while (count);
	}
	else {
		do {
			if (getc() != -1){ autoboot=false; break; }
			if (!(--count%1000)) putc('.');
			mdelay(1);
		}while (count);
	}
	putc('\n');

        __asm__("mov r0, #3; mcr p14,0,r0,c6,c0,0");

 	if (autoboot){
		printf(" autoboot started.\n");
		autoboot_mode();
	}	

	printf(" autoboot aborted.\n");

	//follows add by Chapter Jan 21th, 2006
	bool bExit = false;
	while(!bExit)
	{
		DisplayMenu();

		int iNum;
		bool bSelect = false;
		do {
			iNum = getc();
			if ((iNum >= 48 && iNum <= 57) || iNum == 97 || iNum == 98 || iNum == 99) { printf("%c\n", iNum); bSelect = true; } 
		} while (!bSelect);

		switch(iNum)
		{
		case 48: //ComanndLine mode
			command_mode();
			break;
		case 49: //View current configuration
			command_run("set");
			break;
		case 50: //Bootp
			command_run("bootp");
			break;
		case 51: //Download default Kernel(zImage270)
			tftp_Image("kernel");
			break;
		case 53: //Download default Filesystem(rootfs270.img)
			tftp_Image("filesystem");
			break;
		case 52: //Flash Kernel
			command_run("flash kernel");
			break;
		case 54: //Flash Filesystem
			command_run("flash root");
			break;
		case 55: //boot System
			bExit = true;
			command_run("boot");
			break;
		case 56: //Reboot System
			bExit = true;
			command_run("reboot");
			break;
		case 57: //Reset to factory default configuration
			set_default();
			break;
		case 97: //Set default Kernel name and Filesystem name
			set_filename();
			break;
		case 98: //Set boot delay time
			set_delaytime();
			break;
		case 99: //Help(to get a list of commands)
			command_run("help");
			break;
		default:
			break;
		}
	}
	
	return 0;
}