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authorWim Van Sebroeck <wim@iguana.be>2007-08-17 08:38:02 +0000
committerWim Van Sebroeck <wim@iguana.be>2007-10-18 10:39:03 +0000
commitb7e04f8c61a46d742de23af5d7ca2b41b33e40ac (patch)
treec52a7ea568648e2d8ed0d423098b42298de2058b /drivers/watchdog/omap_wdt.h
parentd85714d81cc0408daddb68c10f7fd69eafe7c213 (diff)
mv watchdog tree under drivers
move watchdog tree from drivers/char/watchdog to drivers/watchdog. Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/watchdog/omap_wdt.h')
-rw-r--r--drivers/watchdog/omap_wdt.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/drivers/watchdog/omap_wdt.h b/drivers/watchdog/omap_wdt.h
new file mode 100644
index 000000000000..52a532a5114a
--- /dev/null
+++ b/drivers/watchdog/omap_wdt.h
@@ -0,0 +1,64 @@
+/*
+ * linux/drivers/char/watchdog/omap_wdt.h
+ *
+ * BRIEF MODULE DESCRIPTION
+ * OMAP Watchdog timer register definitions
+ *
+ * Copyright (C) 2004 Texas Instruments.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
+ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _OMAP_WATCHDOG_H
+#define _OMAP_WATCHDOG_H
+
+#define OMAP1610_WATCHDOG_BASE 0xfffeb000
+#define OMAP2420_WATCHDOG_BASE 0x48022000 /*WDT Timer 2 */
+
+#ifdef CONFIG_ARCH_OMAP24XX
+#define OMAP_WATCHDOG_BASE OMAP2420_WATCHDOG_BASE
+#else
+#define OMAP_WATCHDOG_BASE OMAP1610_WATCHDOG_BASE
+#define RM_RSTST_WKUP 0
+#endif
+
+#define OMAP_WATCHDOG_REV (OMAP_WATCHDOG_BASE + 0x00)
+#define OMAP_WATCHDOG_SYS_CONFIG (OMAP_WATCHDOG_BASE + 0x10)
+#define OMAP_WATCHDOG_STATUS (OMAP_WATCHDOG_BASE + 0x14)
+#define OMAP_WATCHDOG_CNTRL (OMAP_WATCHDOG_BASE + 0x24)
+#define OMAP_WATCHDOG_CRR (OMAP_WATCHDOG_BASE + 0x28)
+#define OMAP_WATCHDOG_LDR (OMAP_WATCHDOG_BASE + 0x2c)
+#define OMAP_WATCHDOG_TGR (OMAP_WATCHDOG_BASE + 0x30)
+#define OMAP_WATCHDOG_WPS (OMAP_WATCHDOG_BASE + 0x34)
+#define OMAP_WATCHDOG_SPR (OMAP_WATCHDOG_BASE + 0x48)
+
+/* Using the prescaler, the OMAP watchdog could go for many
+ * months before firing. These limits work without scaling,
+ * with the 60 second default assumed by most tools and docs.
+ */
+#define TIMER_MARGIN_MAX (24 * 60 * 60) /* 1 day */
+#define TIMER_MARGIN_DEFAULT 60 /* 60 secs */
+#define TIMER_MARGIN_MIN 1
+
+#define PTV 0 /* prescale */
+#define GET_WLDR_VAL(secs) (0xffffffff - ((secs) * (32768/(1<<PTV))) + 1)
+
+#endif /* _OMAP_WATCHDOG_H */