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Release 4.16 drivers/watchdog/sp5100_tco.h

Directory: drivers/watchdog
/* 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
 */

#include <linux/bitops.h>

/*
 * 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	BIT(0)

#define SP5100_WDT_FIRED		BIT(1)

#define SP5100_WDT_ACTION_RESET		BIT(2)

#define SP5100_WDT_DISABLED		BIT(3)

#define SP5100_WDT_TRIGGER_BIT		BIT(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/SB8x0 chipset */

#define SP5100_IO_PM_INDEX_REG		0xCD6

#define SP5100_IO_PM_DATA_REG		0xCD7

/* For SP5100/SB7x0 chipset */

#define SP5100_SB_RESOURCE_MMIO_BASE	0x9C


#define SP5100_PM_WATCHDOG_CONTROL	0x69

#define SP5100_PM_WATCHDOG_BASE		0x6C


#define SP5100_PCI_WATCHDOG_MISC_REG	0x41

#define SP5100_PCI_WATCHDOG_DECODE_EN	BIT(3)


#define SP5100_PM_WATCHDOG_DISABLE	((u8)BIT(0))

#define SP5100_PM_WATCHDOG_SECOND_RES	GENMASK(2, 1)


#define SP5100_DEVNAME			"SP5100 TCO"

/*  For SB8x0(or later) chipset */

#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	BIT(0)

#define SB800_PM_WATCHDOG_DISABLE	((u8)BIT(1))

#define SB800_PM_WATCHDOG_SECOND_RES	GENMASK(1, 0)

#define SB800_ACPI_MMIO_DECODE_EN	BIT(0)

#define SB800_ACPI_MMIO_SEL		BIT(1)


#define SB800_PM_WDT_MMIO_OFFSET	0xB00


#define SB800_DEVNAME			"SB800 TCO"

/* For recent chips with embedded FCH (rev 40+) */


#define EFCH_PM_DECODEEN		0x00


#define EFCH_PM_DECODEEN_WDT_TMREN	BIT(7)



#define EFCH_PM_DECODEEN3		0x00

#define EFCH_PM_DECODEEN_SECOND_RES	GENMASK(1, 0)

#define EFCH_PM_WATCHDOG_DISABLE	((u8)GENMASK(3, 2))

/* WDT MMIO if enabled with PM00_DECODEEN_WDT_TMREN */

#define EFCH_PM_WDT_ADDR		0xfeb00000


#define EFCH_PM_ISACONTROL		0x04


#define EFCH_PM_ISACONTROL_MMIOEN	BIT(1)


#define EFCH_PM_ACPI_MMIO_ADDR		0xfed80000

#define EFCH_PM_ACPI_MMIO_WDT_OFFSET	0x00000b00

Overall Contributors

PersonTokensPropCommitsCommitProp
Guenter Roeck6938.33%562.50%
Priyanka Gupta5530.56%112.50%
Takahisa Tanaka5530.56%112.50%
Greg Kroah-Hartman10.56%112.50%
Total180100.00%8100.00%
Directory: drivers/watchdog
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