diff options
Diffstat (limited to 'kernel/drivers/watchdog/sp5100_tco.h')
-rw-r--r-- | kernel/drivers/watchdog/sp5100_tco.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/kernel/drivers/watchdog/sp5100_tco.h b/kernel/drivers/watchdog/sp5100_tco.h new file mode 100644 index 000000000..2b28c00da --- /dev/null +++ b/kernel/drivers/watchdog/sp5100_tco.h @@ -0,0 +1,65 @@ +/* + * sp5100_tco: TCO timer driver for sp5100 chipsets. + * + * (c) Copyright 2009 Google Inc., All Rights Reserved. + * + * TCO timer driver for sp5100 chipsets + */ + +/* + * Some address definitions for the Watchdog + */ +#define SP5100_WDT_MEM_MAP_SIZE 0x08 +#define SP5100_WDT_CONTROL(base) ((base) + 0x00) /* Watchdog Control */ +#define SP5100_WDT_COUNT(base) ((base) + 0x04) /* Watchdog Count */ + +#define SP5100_WDT_START_STOP_BIT (1 << 0) +#define SP5100_WDT_TRIGGER_BIT (1 << 7) + +#define SP5100_PM_IOPORTS_SIZE 0x02 + +/* + * These two IO registers are hardcoded and there doesn't seem to be a way to + * read them from a register. + */ + +/* For SP5100/SB7x0 chipset */ +#define SP5100_IO_PM_INDEX_REG 0xCD6 +#define SP5100_IO_PM_DATA_REG 0xCD7 + +#define SP5100_SB_RESOURCE_MMIO_BASE 0x9C + +#define SP5100_PM_WATCHDOG_CONTROL 0x69 +#define SP5100_PM_WATCHDOG_BASE 0x6C + +#define SP5100_PM_WATCHDOG_FIRED (1 << 1) +#define SP5100_PM_WATCHDOG_ACTION_RESET (1 << 2) + +#define SP5100_PCI_WATCHDOG_MISC_REG 0x41 +#define SP5100_PCI_WATCHDOG_DECODE_EN (1 << 3) + +#define SP5100_PM_WATCHDOG_DISABLE (1 << 0) +#define SP5100_PM_WATCHDOG_SECOND_RES (3 << 1) + +#define SP5100_DEVNAME "SP5100 TCO" + + +/* For SB8x0(or later) chipset */ +#define SB800_IO_PM_INDEX_REG 0xCD6 +#define SB800_IO_PM_DATA_REG 0xCD7 + +#define SB800_PM_ACPI_MMIO_EN 0x24 +#define SB800_PM_WATCHDOG_CONTROL 0x48 +#define SB800_PM_WATCHDOG_BASE 0x48 +#define SB800_PM_WATCHDOG_CONFIG 0x4C + +#define SB800_PCI_WATCHDOG_DECODE_EN (1 << 0) +#define SB800_PM_WATCHDOG_DISABLE (1 << 2) +#define SB800_PM_WATCHDOG_SECOND_RES (3 << 0) +#define SB800_ACPI_MMIO_DECODE_EN (1 << 0) +#define SB800_ACPI_MMIO_SEL (1 << 1) + + +#define SB800_PM_WDT_MMIO_OFFSET 0xB00 + +#define SB800_DEVNAME "SB800 TCO" |