Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / arm / cpu / arm920t / at91 / reset.c

diff --git a/qemu/roms/u-boot/arch/arm/cpu/arm920t/at91/reset.c b/qemu/roms/u-boot/arch/arm/cpu/arm920t/at91/reset.c
new file mode 100644 (file)
index 0000000..d47777a
--- /dev/null
+++ b/qemu/roms/u-boot/arch/arm/cpu/arm920t/at91/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 */
+}