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authorPeter Tyser <ptyser@xes-inc.com>2010-04-12 22:28:11 -0500
committerWolfgang Denk <wd@denx.de>2010-04-13 09:13:24 +0200
commit84ad688473bec2875e171b71040eb9e033c6c206 (patch)
treecf181129cbdf5d833d55262f759ea2cd9cafaff7 /arch/arm/cpu/arm920t/at91/reset.c
parent8f0fec74ac6d0f3a7134ccebafa1ed9bd8c712ba (diff)
downloadblackbird-obmc-uboot-84ad688473bec2875e171b71040eb9e033c6c206.tar.gz
blackbird-obmc-uboot-84ad688473bec2875e171b71040eb9e033c6c206.zip
arm: Move cpu/$CPU to arch/arm/cpu/$CPU
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'arch/arm/cpu/arm920t/at91/reset.c')
-rw-r--r--arch/arm/cpu/arm920t/at91/reset.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/arch/arm/cpu/arm920t/at91/reset.c b/arch/arm/cpu/arm920t/at91/reset.c
new file mode 100644
index 0000000000..ce9c156154
--- /dev/null
+++ b/arch/arm/cpu/arm920t/at91/reset.c
@@ -0,0 +1,59 @@
+/*
+ * (C) Copyright 2002
+ * Lineo, Inc. <www.lineo.com>
+ * Bernhard Kuhn <bkuhn@lineo.com>
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Alex Zuepke <azu@sysgo.de>
+ *
+ * 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/io.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/at91_st.h>
+
+void board_reset(void) __attribute__((__weak__));
+
+void reset_cpu(ulong ignored)
+{
+ at91_st_t *st = (at91_st_t *) AT91_ST_BASE;
+#if defined(CONFIG_AT91RM9200_USART)
+ /*shutdown the console to avoid strange chars during reset */
+ serial_exit();
+#endif
+
+ if (board_reset)
+ board_reset();
+
+ /* Reset the cpu by setting up the watchdog timer */
+ writel(AT91_ST_WDMR_RSTEN | AT91_ST_WDMR_EXTEN | AT91_ST_WDMR_WDV(2),
+ &st->wdmr);
+ writel(AT91_ST_CR_WDRST, &st->cr);
+ /* and let it timeout */
+ while (1)
+ ;
+ /* Never reached */
+}
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