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authorJean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>2009-05-31 12:44:45 +0200
committerWolfgang Denk <wd@denx.de>2009-06-12 20:39:53 +0200
commit5bb59b3c906ee01adfaac9565443e5236a793079 (patch)
tree6161b37c8030c08b261a75c39ddd963bc4a96b55 /cpu/arm926ejs/at91/reset.c
parent61cf851b09cf8b67009ec11fc47c16add6b142a5 (diff)
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at91: extract reset from timer
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Diffstat (limited to 'cpu/arm926ejs/at91/reset.c')
-rw-r--r--cpu/arm926ejs/at91/reset.c42
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 */
+}