ppc800_unlock_registers.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 "startup.h"

/*
 * ppc800_unlock_registers()
 * Allow various 800 series registers to be used.
 */

void
ppc800_unlock_registers() {
	PPC800_IMMR(PITCK,32) = 0x55ccaa33;
	PPC800_IMMR(SCCRK,32) = 0x55ccaa33;
	PPC800_IMMR(PISCRK,32) = 0x55ccaa33;
	PPC800_IMMR(RSRK,32) = 0x55ccaa33;
	PPC800_IMMR(TBSCRK,32) = 0x55ccaa33;
	PPC800_IMMR(TBREFF0K,32) = 0x55ccaa33;
	PPC800_IMMR(TBREFF1K,32) = 0x55ccaa33;
	PPC800_IMMR(TBK,32) = 0x55ccaa33;
	PPC800_IMMR(RTCSCK,32) = 0x55ccaa33;
	PPC800_IMMR(RTCK,32) = 0x55ccaa33;
	PPC800_IMMR(RTSECK,32) = 0x55ccaa33;
	PPC800_IMMR(PLPRCRK,32) = 0x55ccaa33;
}