1 files changed, 85 insertions, 0 deletions
diff --git a/drivers/watchdog/sp5100_tco.h b/drivers/watchdog/sp5100_tco.h
new file mode 100644
index 000000000..adf015aa4
--- /dev/null
+++ b/drivers/watchdog/sp5100_tco.h
@@ -0,0 +1,85 @@
+/* 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		0x03
+#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