hw_rtc_primecell.c

来自「Centrality Atlas II development software」· C语言 代码 · 共 44 行

/*
 * $QNXLicenseC:
 * Copyright 2008, 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 "startup.h"
#include <arm/primecell.h>

unsigned long
rtc_time_primecell(unsigned base)
{
	hwi_add_device(HWI_ITEM_BUS_UNKNOWN, HWI_ITEM_DEVCLASS_RTC, "primecell", 0);
	hwi_add_location(base, PRIMECELL_RTC_SIZE, 0, hwi_find_as(base, 1));

	/*
	 * Read counter register.
	 * The manual says the RTSR interrupts bits are cleared on reset.
	 */
	return in32(base + PRIMECELL_RTC_DR);
}

__SRCVERSION("hw_rtc_primecell.c $Rev: 206932 $");