davinci: add platform support for watchdog timer
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>
diff --git a/arch/arm/mach-davinci/clock.h b/arch/arm/mach-davinci/clock.h
index 35736ec..584494a 100644
--- a/arch/arm/mach-davinci/clock.h
+++ b/arch/arm/mach-davinci/clock.h
@@ -93,4 +93,7 @@
}
int davinci_clk_init(struct davinci_clk *clocks);
+
+extern struct platform_device davinci_wdt_device;
+
#endif
diff --git a/arch/arm/mach-davinci/devices.c b/arch/arm/mach-davinci/devices.c
index a31370b..7fdc408 100644
--- a/arch/arm/mach-davinci/devices.c
+++ b/arch/arm/mach-davinci/devices.c
@@ -54,3 +54,38 @@
(void) platform_device_register(&davinci_i2c_device);
}
+/*-------------------------------------------------------------------------*/
+
+static struct resource wdt_resources[] = {
+ {
+ .start = 0x01c21c00,
+ .end = 0x01c21fff,
+ .flags = IORESOURCE_MEM,
+ },
+};
+
+struct platform_device davinci_wdt_device = {
+ .name = "watchdog",
+ .id = -1,
+ .num_resources = ARRAY_SIZE(wdt_resources),
+ .resource = wdt_resources,
+};
+
+static void davinci_init_wdt(void)
+{
+ platform_device_register(&davinci_wdt_device);
+}
+
+/*-------------------------------------------------------------------------*/
+
+static int __init davinci_init_devices(void)
+{
+ /* please keep these calls, and their implementations above,
+ * in alphabetical order so they're easier to sort through.
+ */
+ davinci_init_wdt();
+
+ return 0;
+}
+arch_initcall(davinci_init_devices);
+
diff --git a/arch/arm/mach-davinci/time.c b/arch/arm/mach-davinci/time.c
index 494e01b..efbbc2a 100644
--- a/arch/arm/mach-davinci/time.c
+++ b/arch/arm/mach-davinci/time.c
@@ -19,6 +19,7 @@
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/device.h>
+#include <linux/platform_device.h>
#include <mach/hardware.h>
#include <asm/system.h>
@@ -349,15 +350,13 @@
/* reset board using watchdog timer */
-void davinci_watchdog_reset(void) {
+void davinci_watchdog_reset(void)
+{
u32 tgcr, wdtcr;
void __iomem *base = IO_ADDRESS(DAVINCI_WDOG_BASE);
- struct device dev;
struct clk *wd_clk;
- char *name = "watchdog";
- dev_set_name(&dev, name);
- wd_clk = clk_get(&dev, NULL);
+ wd_clk = clk_get(&davinci_wdt_device.dev, NULL);
if (WARN_ON(IS_ERR(wd_clk)))
return;
clk_enable(wd_clk);