Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / arch / arm / cpu / arm1176 / bcm2835 / reset.c

diff --git a/qemu/roms/u-boot/arch/arm/cpu/arm1176/bcm2835/reset.c b/qemu/roms/u-boot/arch/arm/cpu/arm1176/bcm2835/reset.c
new file mode 100644 (file)
index 0000000..8c37ad9
--- /dev/null
+++ b/qemu/roms/u-boot/arch/arm/cpu/arm1176/bcm2835/reset.c
@@ -0,0 +1,35 @@
+/*
+ * (C) Copyright 2012 Stephen Warren
+ *
+ * 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
+ * version 2 as published by the Free Software Foundation.
+ *
+ * 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.
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/wdog.h>
+
+#define RESET_TIMEOUT 10
+
+void reset_cpu(ulong addr)
+{
+       struct bcm2835_wdog_regs *regs =
+               (struct bcm2835_wdog_regs *)BCM2835_WDOG_PHYSADDR;
+       uint32_t rstc;
+
+       rstc = readl(&regs->rstc);
+       rstc &= ~BCM2835_WDOG_RSTC_WRCFG_MASK;
+       rstc |= BCM2835_WDOG_RSTC_WRCFG_FULL_RESET;
+
+       writel(BCM2835_WDOG_PASSWORD | RESET_TIMEOUT, &regs->wdog);
+       writel(BCM2835_WDOG_PASSWORD | rstc, &regs->rstc);
+}