Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / drivers / watchdog / bfin_wdt.c

diff --git a/qemu/roms/u-boot/drivers/watchdog/bfin_wdt.c b/qemu/roms/u-boot/drivers/watchdog/bfin_wdt.c
new file mode 100644 (file)
index 0000000..7a6756b
--- /dev/null
+++ b/qemu/roms/u-boot/drivers/watchdog/bfin_wdt.c
@@ -0,0 +1,26 @@
+/*
+ * watchdog.c - driver for Blackfin on-chip watchdog
+ *
+ * Copyright (c) 2007-2009 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#include <asm/blackfin.h>
+#include <asm/mach-common/bits/watchdog.h>
+
+void hw_watchdog_reset(void)
+{
+       bfin_write_WDOG_STAT(0);
+}
+
+void hw_watchdog_init(void)
+{
+       bfin_write_WDOG_CTL(WDDIS);
+       SSYNC();
+       bfin_write_WDOG_CNT(CONFIG_WATCHDOG_TIMEOUT_MSECS / 1000 * get_sclk());
+       hw_watchdog_reset();
+       bfin_write_WDOG_CTL(WDEN);
+}