/* * 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"