xref: /openbmc/linux/drivers/watchdog/wd501p.h (revision 643d1f7f)
1 /*
2  *	Industrial Computer Source WDT500/501 driver
3  *
4  *	(c) Copyright 1995	CymruNET Ltd
5  *				Innovation Centre
6  *				Singleton Park
7  *				Swansea
8  *				Wales
9  *				UK
10  *				SA2 8PP
11  *
12  *	http://www.cymru.net
13  *
14  *	This driver is provided under the GNU General Public License, incorporated
15  *	herein by reference. The driver is provided without warranty or
16  *	support.
17  *
18  *	Release 0.04.
19  *
20  */
21 
22 
23 #define WDT_COUNT0		(io+0)
24 #define WDT_COUNT1		(io+1)
25 #define WDT_COUNT2		(io+2)
26 #define WDT_CR			(io+3)
27 #define WDT_SR			(io+4)	/* Start buzzer on PCI write */
28 #define WDT_RT			(io+5)	/* Stop buzzer on PCI write */
29 #define WDT_BUZZER		(io+6)	/* PCI only: rd=disable, wr=enable */
30 #define WDT_DC			(io+7)
31 
32 /* The following are only on the PCI card, they're outside of I/O space on
33  * the ISA card: */
34 #define WDT_CLOCK		(io+12)	/* COUNT2: rd=16.67MHz, wr=2.0833MHz */
35 /* inverted opto isolated reset output: */
36 #define WDT_OPTONOTRST		(io+13)	/* wr=enable, rd=disable */
37 /* opto isolated reset output: */
38 #define WDT_OPTORST		(io+14)	/* wr=enable, rd=disable */
39 /* programmable outputs: */
40 #define WDT_PROGOUT		(io+15)	/* wr=enable, rd=disable */
41 
42 								/* FAN 501 500 */
43 #define WDC_SR_WCCR		1	/* Active low */	/*  X   X   X  */
44 #define WDC_SR_TGOOD		2				/*  X   X   -  */
45 #define WDC_SR_ISOI0		4				/*  X   X   X  */
46 #define WDC_SR_ISII1		8				/*  X   X   X  */
47 #define WDC_SR_FANGOOD		16				/*  X   -   -  */
48 #define WDC_SR_PSUOVER		32	/* Active low */	/*  X   X   -  */
49 #define WDC_SR_PSUUNDR		64	/* Active low */	/*  X   X   -  */
50 #define WDC_SR_IRQ		128	/* Active low */	/*  X   X   X  */
51 
52