Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 61 insertions, 0 deletions

diff --git a/drivers/watchdog/at91sam9_wdt.h b/drivers/watchdog/at91sam9_wdt.h
new file mode 100644
index 0000000000..298d545df1
--- /dev/null
+++ b/drivers/watchdog/at91sam9_wdt.h
@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * drivers/watchdog/at91sam9_wdt.h
+ *
+ * Copyright (C) 2007 Andrew Victor
+ * Copyright (C) 2007 Atmel Corporation.
+ * Copyright (C) 2019 Microchip Technology Inc. and its subsidiaries
+ *
+ * Watchdog Timer (WDT) - System peripherals regsters.
+ * Based on AT91SAM9261 datasheet revision D.
+ * Based on SAM9X60 datasheet.
+ *
+ */
+
+#ifndef AT91_WDT_H
+#define AT91_WDT_H
+
+#include <linux/bits.h>
+
+#define AT91_WDT_CR		0x00			/* Watchdog Control Register */
+#define  AT91_WDT_WDRSTT	BIT(0)			/* Restart */
+#define  AT91_WDT_KEY		(0xa5UL << 24)		/* KEY Password */
+
+#define AT91_WDT_MR		0x04			/* Watchdog Mode Register */
+#define  AT91_WDT_WDV		(0xfffUL << 0)		/* Counter Value */
+#define  AT91_WDT_SET_WDV(x)	((x) & AT91_WDT_WDV)
+#define  AT91_SAM9X60_PERIODRST	BIT(4)		/* Period Reset */
+#define  AT91_SAM9X60_RPTHRST	BIT(5)		/* Minimum Restart Period */
+#define  AT91_WDT_WDFIEN	BIT(12)		/* Fault Interrupt Enable */
+#define  AT91_SAM9X60_WDDIS	BIT(12)		/* Watchdog Disable */
+#define  AT91_WDT_WDRSTEN	BIT(13)		/* Reset Processor */
+#define  AT91_WDT_WDRPROC	BIT(14)		/* Timer Restart */
+#define  AT91_WDT_WDDIS		BIT(15)		/* Watchdog Disable */
+#define  AT91_WDT_WDD		(0xfffUL << 16)		/* Delta Value */
+#define  AT91_WDT_SET_WDD(x)	(((x) << 16) & AT91_WDT_WDD)
+#define  AT91_WDT_WDDBGHLT	BIT(28)		/* Debug Halt */
+#define  AT91_WDT_WDIDLEHLT	BIT(29)		/* Idle Halt */
+
+#define AT91_WDT_SR		0x08		/* Watchdog Status Register */
+#define  AT91_WDT_WDUNF		BIT(0)		/* Watchdog Underflow */
+#define  AT91_WDT_WDERR		BIT(1)		/* Watchdog Error */
+
+/* Watchdog Timer Value Register */
+#define AT91_SAM9X60_VR		0x08
+
+/* Watchdog Window Level Register */
+#define AT91_SAM9X60_WLR	0x0c
+/* Watchdog Period Value */
+#define  AT91_SAM9X60_COUNTER	(0xfffUL << 0)
+#define  AT91_SAM9X60_SET_COUNTER(x)	((x) & AT91_SAM9X60_COUNTER)
+
+/* Interrupt Enable Register */
+#define AT91_SAM9X60_IER	0x14
+/* Period Interrupt Enable */
+#define  AT91_SAM9X60_PERINT	BIT(0)
+/* Interrupt Disable Register */
+#define AT91_SAM9X60_IDR	0x18
+/* Interrupt Status Register */
+#define AT91_SAM9X60_ISR	0x1c
+
+#endif