drivers/watchdog/sp5100_tco.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  *      sp5100_tco:     TCO timer driver for sp5100 chipsets.
   4  *
   5  *      (c) Copyright 2009 Google Inc., All Rights Reserved.
   6  *
   7  *      TCO timer driver for sp5100 chipsets
   8  */
   9
  10 /*
  11  * Some address definitions for the Watchdog
  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 << 0)
  18 #define SP5100_WDT_TRIGGER_BIT          (1 << 7)
  19
  20 #define SP5100_PM_IOPORTS_SIZE          0x02
  21
  22 /*
  23  * These two IO registers are hardcoded and there doesn't seem to be a way to
  24  * read them from a register.
  25  */
  26
  27 /*  For SP5100/SB7x0 chipset */
  28 #define SP5100_IO_PM_INDEX_REG          0xCD6
  29 #define SP5100_IO_PM_DATA_REG           0xCD7
  30
  31 #define SP5100_SB_RESOURCE_MMIO_BASE    0x9C
  32
  33 #define SP5100_PM_WATCHDOG_CONTROL      0x69
  34 #define SP5100_PM_WATCHDOG_BASE         0x6C
  35
  36 #define SP5100_PM_WATCHDOG_FIRED        (1 << 1)
  37 #define SP5100_PM_WATCHDOG_ACTION_RESET (1 << 2)
  38
  39 #define SP5100_PCI_WATCHDOG_MISC_REG    0x41
  40 #define SP5100_PCI_WATCHDOG_DECODE_EN   (1 << 3)
  41
  42 #define SP5100_PM_WATCHDOG_DISABLE      (1 << 0)
  43 #define SP5100_PM_WATCHDOG_SECOND_RES   (3 << 1)
  44
  45 #define SP5100_DEVNAME                  "SP5100 TCO"
  46
  47
  48 /*  For SB8x0(or later) chipset */
  49 #define SB800_IO_PM_INDEX_REG           0xCD6
  50 #define SB800_IO_PM_DATA_REG            0xCD7
  51
  52 #define SB800_PM_ACPI_MMIO_EN           0x24
  53 #define SB800_PM_WATCHDOG_CONTROL       0x48
  54 #define SB800_PM_WATCHDOG_BASE          0x48
  55 #define SB800_PM_WATCHDOG_CONFIG        0x4C
  56
  57 #define SB800_PCI_WATCHDOG_DECODE_EN    (1 << 0)
  58 #define SB800_PM_WATCHDOG_DISABLE       (1 << 2)
  59 #define SB800_PM_WATCHDOG_SECOND_RES    (3 << 0)
  60 #define SB800_ACPI_MMIO_DECODE_EN       (1 << 0)
  61 #define SB800_ACPI_MMIO_SEL             (1 << 1)
  62
  63
  64 #define SB800_PM_WDT_MMIO_OFFSET        0xB00
  65
  66 #define SB800_DEVNAME                   "SB800 TCO"