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sp5100_tco.h
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1 /*
2  * sp5100_tco: TCO timer driver for sp5100 chipsets.
3  *
4  * (c) Copyright 2009 Google Inc., All Rights Reserved.
5  *
6  * TCO timer driver for sp5100 chipsets
7  */
8 
9 /*
10  * Some address definitions for the Watchdog
11  */
12 
13 #define SP5100_WDT_MEM_MAP_SIZE 0x08
14 #define SP5100_WDT_CONTROL(base) ((base) + 0x00) /* Watchdog Control */
15 #define SP5100_WDT_COUNT(base) ((base) + 0x04) /* Watchdog Count */
16 
17 #define SP5100_WDT_START_STOP_BIT 1
18 #define SP5100_WDT_TRIGGER_BIT (1 << 7)
19 
20 #define SP5100_PCI_WATCHDOG_MISC_REG 0x41
21 #define SP5100_PCI_WATCHDOG_DECODE_EN (1 << 3)
22 
23 #define SP5100_PM_IOPORTS_SIZE 0x02
24 
25 /* These two IO registers are hardcoded and there doesn't seem to be a way to
26  * read them from a register.
27  */
28 #define SP5100_IO_PM_INDEX_REG 0xCD6
29 #define SP5100_IO_PM_DATA_REG 0xCD7
30 
31 #define SP5100_PM_WATCHDOG_CONTROL 0x69
32 #define SP5100_PM_WATCHDOG_BASE0 0x6C
33 #define SP5100_PM_WATCHDOG_BASE1 0x6D
34 #define SP5100_PM_WATCHDOG_BASE2 0x6E
35 #define SP5100_PM_WATCHDOG_BASE3 0x6F
36 
37 #define SP5100_PM_WATCHDOG_FIRED (1 << 1)
38 #define SP5100_PM_WATCHDOG_ACTION_RESET (1 << 2)
39 
40 #define SP5100_PM_WATCHDOG_DISABLE 1
41 #define SP5100_PM_WATCHDOG_SECOND_RES (3 << 1)