Initial revision

1 files changed, 96 insertions, 0 deletions

diff --git a/include/watchdog.h b/include/watchdog.h
new file mode 100644
index 000000000..6a64409e5
--- /dev/null
+++ b/include/watchdog.h
@@ -0,0 +1,96 @@
+/*
+ * (C) Copyright 2001
+ * Erik Theisen,  Wave 7 Optics, etheisen@mindspring.com.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * Watchdog functions and macros.
+ */
+#ifndef _WATCHDOG_H_
+#define _WATCHDOG_H_
+
+#if defined(CONFIG_HW_WATCHDOG) && defined(CONFIG_WATCHDOG)
+#  error "Configuration error: CONFIG_HW_WATCHDOG and CONFIG_WATCHDOG can't be used together."
+#endif
+
+/*
+ * Hardware watchdog
+ */
+#ifdef CONFIG_HW_WATCHDOG
+	#if defined(__ASSEMBLY__)
+		#define WATCHDOG_RESET bl hw_watchdog_reset
+	#else
+		extern void hw_watchdog_reset(void);
+
+		#define WATCHDOG_RESET hw_watchdog_reset
+	#endif /* __ASSEMBLY__ */
+#else
+	/*
+	 * Maybe a software watchdog?
+	 */
+	#if defined(CONFIG_WATCHDOG)
+		#if defined(__ASSEMBLY__)
+			#define WATCHDOG_RESET bl watchdog_reset
+		#else
+			extern void watchdog_reset(void);
+
+			#define WATCHDOG_RESET watchdog_reset
+		#endif
+	#else
+		/*
+		 * No hardware or software watchdog.
+		 */
+		#if defined(__ASSEMBLY__)
+			#define WATCHDOG_RESET /*XXX DO_NOT_DEL_THIS_COMMENT*/
+		#else
+			#define WATCHDOG_RESET() {}
+		#endif /* __ASSEMBLY__ */
+	#endif /* CONFIG_WATCHDOG && !__ASSEMBLY__ */
+#endif /* CONFIG_HW_WATCHDOG */
+
+/*
+ * Prototypes from $(CPU)/cpu.c.
+ */
+
+/* MPC 8xx */
+#if (defined(CONFIG_8xx) || defined(CONFIG_MPC860)) && !defined(__ASSEMBLY__)
+	void reset_8xx_watchdog(volatile immap_t *immr);
+#endif
+
+/* IBM 4xx */
+#if defined(CONFIG_4xx) && !defined(__ASSEMBLY__)
+	void reset_4xx_watchdog(void);
+#endif
+
+/* MPC 8260 */
+#if defined(CONFIG_MPC8260) && !defined(__ASSEMBLY__)
+#if defined(CONFIG_WATCHDOG)
+extern __inline__ void
+reset_8260_watchdog(volatile immap_t *immr)
+{
+	immr->im_siu_conf.sc_swsr = 0x556c;
+	immr->im_siu_conf.sc_swsr = 0xaa39;
+}
+#endif /* !__ASSEMBLY__ && CONFIG_WATCHDOG */
+#endif /* CONFIG_MPC8260 && !__ASSEMBLY__ */
+
+#endif /* _WATCHDOG_H_ */
+