Signed-off-by: Sergey Lapin <[EMAIL PROTECTED]>
---
cpu/arm926ejs/at91/Makefile | 1 +
cpu/arm926ejs/at91/watchdog.c | 38 ++++++++++++++++++++++++++++++++++++++
2 files changed, 39 insertions(+), 0 deletions(-)
create mode 100644 cpu/arm926ejs/at91/watchdog.c
diff --git a/cpu/arm926ejs/at91/Makefile b/cpu/arm926ejs/at91/Makefile
index 44cde1a..7befcd7 100644
--- a/cpu/arm926ejs/at91/Makefile
+++ b/cpu/arm926ejs/at91/Makefile
@@ -29,6 +29,7 @@ COBJS-y += ether.o
COBJS-y += timer.o
COBJS-$(CONFIG_HAS_DATAFLASH) +=spi.o
COBJS-y += usb.o
+COBJS-$(CONFIG_HW_WATCHDOG) +=watchdog.o
SOBJS = lowlevel_init.o
SRCS := $(SOBJS:.o=.S) $(COBJS-y:.o=.c)
diff --git a/cpu/arm926ejs/at91/watchdog.c b/cpu/arm926ejs/at91/watchdog.c
new file mode 100644
index 0000000..502cc8a
--- /dev/null
+++ b/cpu/arm926ejs/at91/watchdog.c
@@ -0,0 +1,38 @@
+/*
+ * watchdog.c - driver for at91sam9260 watchdog
+ *
+ * Copyright (c) 2008 Sergey Lapin
+ *
+ * Based on Blackfin watchdog driver
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#include <asm/arch/hardware.h>
+#include <asm/arch/io.h>
+
+#ifdef CONFIG_HW_WATCHDOG
+#define AT91_WDT_CR (AT91_WDT+0x00)
+#define AT91_WDT_MR (AT91_WDT+0x04)
+#define AT91_WDT_SR (AT91_WDT+0x08)
+
+void hw_watchdog_reset(void)
+{
+ at91_sys_write(AT91_WDT_CR, 0xa5000001);
+}
+
+void hw_watchdog_init(void)
+{
+ /* 16 seconds timer, resets enabled */
+ at91_sys_write(AT91_WDT_MR, 0x3FFF2FFF);
+}
+
+void hw_watchdog_disable(void)
+{
+ /* Can't reenable per documentation */
+ at91_sys_write(AT91_WDT_MR, 0x8000);
+}
+#endif
+
--
1.5.4.1
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