tmra.h

MIPS下的boottloader yamon 的源代码

#ifndef TMRA_H
#define TMRA_H
/************************************************************************
 *
 *  tmra.h
 *
 *  Register definition file for :
 *
 *    MIPS Timer Device, type A.
 *
 *  This timer device is first used on the ATLAS board, which
 *  has this device being part of the CBUS FPGA.
 *
 *
 * ######################################################################
 *
 * Copyright (c) 1999-2000 MIPS Technologies, Inc. All rights reserved. 
 * 
 * Unpublished rights reserved under the Copyright Laws of the United States of 
 * America. 
 * 
 * This document contains information that is proprietary to MIPS Technologies, 
 * Inc. ("MIPS Technologies"). Any copying, modifying or use of this information 
 * (in whole or in part) which is not expressly permitted in writing by MIPS 
 * Technologies or a contractually-authorized third party is strictly 
 * prohibited. At a minimum, this information is protected under unfair 
 * competition laws and the expression of the information contained herein is 
 * protected under federal copyright laws. Violations thereof may result in 
 * criminal penalties and fines. 
 * MIPS Technologies or any contractually-authorized third party reserves the 
 * right to change the information contained in this document to improve 
 * function, design or otherwise. MIPS Technologies does not assume any 
 * liability arising out of the application or use of this information. Any 
 * license under patent rights or any other intellectual property rights owned 
 * by MIPS Technologies or third parties shall be conveyed by MIPS Technologies 
 * or any contractually-authorized third party in a separate license agreement 
 * between the parties. 
 * The information contained in this document constitutes one or more of the 
 * following: commercial computer software, commercial computer software 
 * documentation or other commercial items. If the user of this information, or 
 * any related documentation of any kind, including related technical data or 
 * manuals, is an agency, department, or other entity of the United States 
 * government ("Government"), the use, duplication, reproduction, release, 
 * modification, disclosure, or transfer of this information, or any related 
 * documentation of any kind, is restricted in accordance with Federal 
 * Acquisition Regulation 12.212 for civilian agencies and Defense Federal 
 * Acquisition Regulation Supplement 227.7202 for military agencies. The use of 
 * this information by the Government is further restricted in accordance with 
 * the terms of the license agreement(s) and/or applicable contract terms and 
 * conditions covering this information from MIPS Technologies or any 
 * contractually-authorized third party. 
 *
 ************************************************************************/




/************************************************************************
 *  Include files
 ************************************************************************/

#include <sysdefs.h>

/************************************************************************
 *  Timer: Properties
*************************************************************************/

#define TMRA_TICKS_PER_SECOND  1000000 /* timers: count per second      */



/************************************************************************
 *  Timer: Relative Register Addresses
*************************************************************************/


#define TMRA_TM0CNT_OFS         0x00 /* TIMER 0 count register          */
#define TMRA_TM0CMP_OFS         0x08 /* TIMER 0 compare register        */
#define TMRA_TM1CNT_OFS         0x10 /* TIMER 1 count register          */
#define TMRA_TM1CMP_OFS         0x18 /* TIMER 1 compare register        */
#define TMRA_TMINTACK_OFS       0x20 /* TIMER interrupt acknowledge reg */


/************************************************************************
 *  Timer: Register field encodings
*************************************************************************/


/******** reg: TMINTACK ********/

/* field: TM1ACK */
#define TMRA_TMINTACK_TM1ACK_SHF	1
#define TMRA_TMINTACK_TM1ACK_MSK	(MSK(1) << TMRA_TMINTACK_TM1ACK_SHF)
#define TMRA_TMINTACK_TM1ACK_SET	TMRA_TMINTACK_TM1ACK_MSK

/* field: TM0ACK */
#define TMRA_TMINTACK_TM0ACK_SHF	0
#define TMRA_TMINTACK_TM0ACK_MSK	(MSK(1) << TMRA_TMINTACK_TM0ACK_SHF)
#define TMRA_TMINTACK_TM0ACK_SET	TMRA_TMINTACK_TM0ACK_MSK


#endif /* #ifndef TMRA_H */