[ARM] Kirkwood: Add the watchdog timer as a platform device.
The Kirkwood architecture uses the same watchdog device as the Orion
architecture. This patch adds orion5x_wdt as a platform device for
Kirkwood.
Signed-off-by: Thomas Reitmayr <treitmayr@devbase.at>
Tested-by: Martin Michlmayr <tbm@cyrius.com>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
index d127731..a053184 100644
--- a/arch/arm/mach-kirkwood/common.c
+++ b/arch/arm/mach-kirkwood/common.c
@@ -30,6 +30,7 @@
#include <plat/mvsdio.h>
#include <plat/mv_xor.h>
#include <plat/orion_nand.h>
+#include <plat/orion5x_wdt.h>
#include <plat/time.h>
#include "common.h"
@@ -768,6 +769,29 @@
/*****************************************************************************
+ * Watchdog
+ ****************************************************************************/
+static struct orion5x_wdt_platform_data kirkwood_wdt_data = {
+ .tclk = 0,
+};
+
+static struct platform_device kirkwood_wdt_device = {
+ .name = "orion5x_wdt",
+ .id = -1,
+ .dev = {
+ .platform_data = &kirkwood_wdt_data,
+ },
+ .num_resources = 0,
+};
+
+static void __init kirkwood_wdt_init(void)
+{
+ kirkwood_wdt_data.tclk = kirkwood_tclk;
+ platform_device_register(&kirkwood_wdt_device);
+}
+
+
+/*****************************************************************************
* Time handling
****************************************************************************/
int kirkwood_tclk;
@@ -859,6 +883,7 @@
/* internal devices that every board has */
kirkwood_rtc_init();
+ kirkwood_wdt_init();
kirkwood_xor0_init();
kirkwood_xor1_init();
}
diff --git a/arch/arm/mach-kirkwood/include/mach/bridge-regs.h b/arch/arm/mach-kirkwood/include/mach/bridge-regs.h
index 00d96ab..9e80d92 100644
--- a/arch/arm/mach-kirkwood/include/mach/bridge-regs.h
+++ b/arch/arm/mach-kirkwood/include/mach/bridge-regs.h
@@ -17,12 +17,15 @@
#define CPU_RESET 0x00000002
#define RSTOUTn_MASK (BRIDGE_VIRT_BASE | 0x0108)
+#define WDT_RESET_OUT_EN 0x00000002
#define SOFT_RESET_OUT_EN 0x00000004
#define SYSTEM_SOFT_RESET (BRIDGE_VIRT_BASE | 0x010c)
#define SOFT_RESET 0x00000001
#define BRIDGE_CAUSE (BRIDGE_VIRT_BASE | 0x0110)
+#define WDT_INT_REQ 0x0008
+
#define BRIDGE_MASK (BRIDGE_VIRT_BASE | 0x0114)
#define BRIDGE_INT_TIMER0 0x0002
#define BRIDGE_INT_TIMER1 0x0004
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 5eb8f21..1e983b1 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -233,10 +233,10 @@
config ORION5X_WATCHDOG
tristate "Orion5x watchdog"
- depends on ARCH_ORION5X
+ depends on ARCH_ORION5X || ARCH_KIRKWOOD
help
Say Y here if to include support for the watchdog timer
- in the Orion5x ARM SoCs.
+ in the Orion5x and Kirkwood ARM SoCs.
To compile this driver as a module, choose M here: the
module will be called orion5x_wdt.