GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

2026-09-06 03:52:57 +08:00
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+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (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>
+ */
+
+#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 */
+}