main.c

QNX ADS BSP code for i.MX27 chips

/*
 * $QNXLicenseC: 
 * Copyright 2007, QNX Software Systems.  
 *  
 * Licensed under the Apache License, Version 2.0 (the "License"). You  
 * may not reproduce, modify or distribute this software except in  
 * compliance with the License. You may obtain a copy of the License  
 * at: http://www.apache.org/licenses/LICENSE-2.0  
 *  
 * Unless required by applicable law or agreed to in writing, software  
 * distributed under the License is distributed on an "AS IS" basis,  
 * WITHOUT WARRANTIES OF ANY KIND, either express or implied. 
 * 
 * This file may contain contributions from others, either as  
 * contributors under the License or as licensors under other terms.   
 * Please review this entire file for other proprietary rights or license  
 * notices, as well as the QNX Development Suite License Guide at  
 * http://licensing.qnx.com/license-guide/ for other information. 
 * $ 
 */



/*
 * IPL for MX21ADS Board
 */

#include "ipl.h"
#include <arm/mx1.h>

#define	MAX_SCAN	0x2000
#define	FLASH_IMAGE	0xC8001000

void
setup_image(unsigned image)
{
	ser_putstr("Found image        @ 0x");
	ser_puthex(image);
	ser_putstr("\n");

	image_setup(image);

	ser_putstr("Jumping to startup @ 0x");
	ser_puthex(startup_hdr.startup_vaddr);
	ser_putstr("\n");

	image_start(image);
}


void
download_ram(unsigned addr)
{
	unsigned	image;

	ser_putstr("\nDownloading image to  0x");
	ser_puthex(addr);
	ser_putstr("\n");

	if (image_download_ser(addr)) {
		ser_putstr("Download failed\n");
		return;
	}

	ser_putstr("\nScanning image     @ 0x");
	ser_puthex(addr);
	ser_putstr("\n");

	image = image_scan(addr, addr + MAX_SCAN);

	if (image != -1) 
		setup_image(image);
}

void scan_flash()
{
	unsigned image;

	ser_putstr("\nScanning flash at 0xC8001000\n");

	image = image_scan(FLASH_IMAGE, FLASH_IMAGE + MAX_SCAN);

	if (image != -1) 
		setup_image(image);
}

int main()
{
	/*
	 * Initialize UART 1
	 */
	init_sermx1(0x1000A000, 115200, 44333333);

	/*
	 * Display banner
	 */
	ser_putstr("\nQNX/Neutrino IPL for M9328MX21ADS : \n");

	/*
	 * Attempt to boot
	 */
	while (1) {
		ser_putstr("Commands:\n");
		ser_putstr("  d: download image to RAM\n");
		ser_putstr("  f: scan flash for image\n");
		ser_putstr("ipl> ");

		switch (ser_getchar()) {
			case 'd':
				download_ram(0xC1000000);
				break;

			case 'f':
				scan_flash();
				break;
		}
	}

	return 0;
}