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drivers/watchdog/sp5100_tco.h 1.73 KB
81f7e3824   Eric Lee   Initial Release, ...
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  /* SPDX-License-Identifier: GPL-2.0 */
  /*
   *	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 << 1)
  #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"