at91: extract reset from timer

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

1 files changed, 42 insertions, 0 deletions

diff --git a/cpu/arm926ejs/at91/reset.c b/cpu/arm926ejs/at91/reset.c
new file mode 100644
index 0000000..f963e14
--- /dev/null
+++ b/cpu/arm926ejs/at91/reset.c
@@ -0,0 +1,42 @@
+/*
+ * (C) Copyright 2007-2008
+ * Stelian Pop <stelian.pop@leadtechdesign.com>
+ * Lead Tech Design <www.leadtechdesign.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
+ */
+
+#include <common.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/at91_rstc.h>
+#include <asm/arch/io.h>
+
+/*
+ * Reset the cpu by setting up the watchdog timer and let him time out.
+ */
+void reset_cpu(ulong ignored)
+{
+	/* this is the way Linux does it */
+	at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY |
+				     AT91_RSTC_PROCRST |
+				     AT91_RSTC_PERRST);
+
+	while (1);
+	/* Never reached */
+}