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Diffstat (limited to 'arch/arm/mach-at91/arm920t/reset.c')
-rw-r--r--arch/arm/mach-at91/arm920t/reset.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/arm920t/reset.c b/arch/arm/mach-at91/arm920t/reset.c
new file mode 100644
index 0000000000..d47777a367
--- /dev/null
+++ b/arch/arm/mach-at91/arm920t/reset.c
@@ -0,0 +1,41 @@
+/*
+ * (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>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/at91_st.h>
+
+void __attribute__((weak)) board_reset(void)
+{
+ /* true empty function for defining weak symbol */
+}
+
+void reset_cpu(ulong ignored)
+{
+ at91_st_t *st = (at91_st_t *) ATMEL_BASE_ST;
+
+ 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 */
+}