xref: /OK3568_Linux_fs/kernel/arch/mips/include/asm/mach-rc32434/timer.h (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun  *  Definitions for timer registers
3*4882a593Smuzhiyun  *
4*4882a593Smuzhiyun  *  Copyright 2004 Philip Rischel <rischelp@idt.com>
5*4882a593Smuzhiyun  *  Copyright 2008 Florian Fainelli <florian@openwrt.org>
6*4882a593Smuzhiyun  *
7*4882a593Smuzhiyun  *  This program is free software; you can redistribute  it and/or modify it
8*4882a593Smuzhiyun  *  under  the terms of  the GNU General  Public License as published by the
9*4882a593Smuzhiyun  *  Free Software Foundation;  either version 2 of the  License, or (at your
10*4882a593Smuzhiyun  *  option) any later version.
11*4882a593Smuzhiyun  *
12*4882a593Smuzhiyun  *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
13*4882a593Smuzhiyun  *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
14*4882a593Smuzhiyun  *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
15*4882a593Smuzhiyun  *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
16*4882a593Smuzhiyun  *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
17*4882a593Smuzhiyun  *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
18*4882a593Smuzhiyun  *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
19*4882a593Smuzhiyun  *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
20*4882a593Smuzhiyun  *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
21*4882a593Smuzhiyun  *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
22*4882a593Smuzhiyun  *
23*4882a593Smuzhiyun  *  You should have received a copy of the  GNU General Public License along
24*4882a593Smuzhiyun  *  with this program; if not, write  to the Free Software Foundation, Inc.,
25*4882a593Smuzhiyun  *  675 Mass Ave, Cambridge, MA 02139, USA.
26*4882a593Smuzhiyun  *
27*4882a593Smuzhiyun  */
28*4882a593Smuzhiyun 
29*4882a593Smuzhiyun #ifndef __ASM_RC32434_TIMER_H
30*4882a593Smuzhiyun #define __ASM_RC32434_TIMER_H
31*4882a593Smuzhiyun 
32*4882a593Smuzhiyun #include <asm/mach-rc32434/rb.h>
33*4882a593Smuzhiyun 
34*4882a593Smuzhiyun #define TIMER0_BASE_ADDR		0x18028000
35*4882a593Smuzhiyun #define TIMER_COUNT			3
36*4882a593Smuzhiyun 
37*4882a593Smuzhiyun struct timer_counter {
38*4882a593Smuzhiyun 	u32 count;
39*4882a593Smuzhiyun 	u32 compare;
40*4882a593Smuzhiyun 	u32 ctc;		/*use CTC_ */
41*4882a593Smuzhiyun };
42*4882a593Smuzhiyun 
43*4882a593Smuzhiyun struct timer {
44*4882a593Smuzhiyun 	struct timer_counter tim[TIMER_COUNT];
45*4882a593Smuzhiyun 	u32 rcount;	/* use RCOUNT_ */
46*4882a593Smuzhiyun 	u32 rcompare;	/* use RCOMPARE_ */
47*4882a593Smuzhiyun 	u32 rtc;	/* use RTC_ */
48*4882a593Smuzhiyun };
49*4882a593Smuzhiyun 
50*4882a593Smuzhiyun #define RC32434_CTC_EN_BIT		0
51*4882a593Smuzhiyun #define RC32434_CTC_TO_BIT		1
52*4882a593Smuzhiyun 
53*4882a593Smuzhiyun /* Real time clock registers */
54*4882a593Smuzhiyun #define RC32434_RTC_MSK(x)		BIT_TO_MASK(x)
55*4882a593Smuzhiyun #define RC32434_RTC_CE_BIT		0
56*4882a593Smuzhiyun #define RC32434_RTC_TO_BIT		1
57*4882a593Smuzhiyun #define RC32434_RTC_RQE_BIT		2
58*4882a593Smuzhiyun 
59*4882a593Smuzhiyun /* Counter registers */
60*4882a593Smuzhiyun #define RC32434_RCOUNT_BIT		0
61*4882a593Smuzhiyun #define RC32434_RCOUNT_MSK		0x0000ffff
62*4882a593Smuzhiyun #define RC32434_RCOMP_BIT		0
63*4882a593Smuzhiyun #define RC32434_RCOMP_MSK		0x0000ffff
64*4882a593Smuzhiyun 
65*4882a593Smuzhiyun #endif	/* __ASM_RC32434_TIMER_H */
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