intel_poll.c

qnx powerpc MPC8245的 BSP源文件

/*
 * $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. 
 * $ 
 */



#include <sys/f3s_mtd.h>

/*
 * Description
 *
 * This is not a valid MTD callout. For internal use by other MTD callouts.
 */

int intel_poll(volatile void *memory, unsigned poll_count)
{
	unsigned poll = poll_count;

	while ((readmem(memory) & (0x80 * flashcfg.device_mult)) != (0x80 * flashcfg.device_mult) && poll)
		poll--;

	if (!poll)
	{
		return -1;
	}

	return(1);
}