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authorMark Brown <broonie@opensource.wolfsonmicro.com>2009-07-27 14:46:12 +0100
committerWim Van Sebroeck <wim@iguana.be>2009-09-18 08:35:49 +0000
commit502a0106b2cc31940f690dc6693fddfd3b97cab5 (patch)
treefc6e7c4aa8a8df5b5a72566a9a3cda9153e7802d /include
parent0400e3134b03336617138f9ebf2cd0f117ceef20 (diff)
[WATCHDOG] Add support for WM831x watchdog
The WM831x series of devices provide a watchdog with configurable behaviour on timer expiry. Currently this driver support refreshes via a register or GPIO line and autonomous refreshes from a hardware source (eg, a clock). Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'include')
-rw-r--r--include/linux/mfd/wm831x/watchdog.h52
1 files changed, 52 insertions, 0 deletions
diff --git a/include/linux/mfd/wm831x/watchdog.h b/include/linux/mfd/wm831x/watchdog.h
new file mode 100644
index 00000000000..97a99b52956
--- /dev/null
+++ b/include/linux/mfd/wm831x/watchdog.h
@@ -0,0 +1,52 @@
+/*
+ * include/linux/mfd/wm831x/watchdog.h -- Watchdog for WM831x
+ *
+ * Copyright 2009 Wolfson Microelectronics PLC.
+ *
+ * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ */
+
+#ifndef __MFD_WM831X_WATCHDOG_H__
+#define __MFD_WM831X_WATCHDOG_H__
+
+
+/*
+ * R16388 (0x4004) - Watchdog
+ */
+#define WM831X_WDOG_ENA 0x8000 /* WDOG_ENA */
+#define WM831X_WDOG_ENA_MASK 0x8000 /* WDOG_ENA */
+#define WM831X_WDOG_ENA_SHIFT 15 /* WDOG_ENA */
+#define WM831X_WDOG_ENA_WIDTH 1 /* WDOG_ENA */
+#define WM831X_WDOG_DEBUG 0x4000 /* WDOG_DEBUG */
+#define WM831X_WDOG_DEBUG_MASK 0x4000 /* WDOG_DEBUG */
+#define WM831X_WDOG_DEBUG_SHIFT 14 /* WDOG_DEBUG */
+#define WM831X_WDOG_DEBUG_WIDTH 1 /* WDOG_DEBUG */
+#define WM831X_WDOG_RST_SRC 0x2000 /* WDOG_RST_SRC */
+#define WM831X_WDOG_RST_SRC_MASK 0x2000 /* WDOG_RST_SRC */
+#define WM831X_WDOG_RST_SRC_SHIFT 13 /* WDOG_RST_SRC */
+#define WM831X_WDOG_RST_SRC_WIDTH 1 /* WDOG_RST_SRC */
+#define WM831X_WDOG_SLPENA 0x1000 /* WDOG_SLPENA */
+#define WM831X_WDOG_SLPENA_MASK 0x1000 /* WDOG_SLPENA */
+#define WM831X_WDOG_SLPENA_SHIFT 12 /* WDOG_SLPENA */
+#define WM831X_WDOG_SLPENA_WIDTH 1 /* WDOG_SLPENA */
+#define WM831X_WDOG_RESET 0x0800 /* WDOG_RESET */
+#define WM831X_WDOG_RESET_MASK 0x0800 /* WDOG_RESET */
+#define WM831X_WDOG_RESET_SHIFT 11 /* WDOG_RESET */
+#define WM831X_WDOG_RESET_WIDTH 1 /* WDOG_RESET */
+#define WM831X_WDOG_SECACT_MASK 0x0300 /* WDOG_SECACT - [9:8] */
+#define WM831X_WDOG_SECACT_SHIFT 8 /* WDOG_SECACT - [9:8] */
+#define WM831X_WDOG_SECACT_WIDTH 2 /* WDOG_SECACT - [9:8] */
+#define WM831X_WDOG_PRIMACT_MASK 0x0030 /* WDOG_PRIMACT - [5:4] */
+#define WM831X_WDOG_PRIMACT_SHIFT 4 /* WDOG_PRIMACT - [5:4] */
+#define WM831X_WDOG_PRIMACT_WIDTH 2 /* WDOG_PRIMACT - [5:4] */
+#define WM831X_WDOG_TO_MASK 0x0007 /* WDOG_TO - [2:0] */
+#define WM831X_WDOG_TO_SHIFT 0 /* WDOG_TO - [2:0] */
+#define WM831X_WDOG_TO_WIDTH 3 /* WDOG_TO - [2:0] */
+
+#endif