Watchdog: allow orion_wdt to be built for Dove

The watchdog infrastructure in Dove is no different from that in
Orion5x or Kirkwood, so let's enable it for Dove.  The only things
missing are a few register settings in Dove's bridge-regs.h.

Rather than duplicating the same register bit masks for the RSTOUTn_MASK
and BRIDGE_CAUSE registers, move the definitions into the watchdog
driver itself.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>

diff --git a/arch/arm/mach-dove/include/mach/bridge-regs.h b/arch/arm/mach-dove/include/mach/bridge-regs.h
index 99f259e..5362df3 100644 (file)
--- a/arch/arm/mach-dove/include/mach/bridge-regs.h
+++ b/arch/arm/mach-dove/include/mach/bridge-regs.h
@@ -26,6 +26,7 @@
 #define SYSTEM_SOFT_RESET      (BRIDGE_VIRT_BASE + 0x010c)
 #define  SOFT_RESET            0x00000001
 
+#define BRIDGE_CAUSE           (BRIDGE_VIRT_BASE + 0x0110)
 #define  BRIDGE_INT_TIMER1_CLR (~0x0004)
 
 #define IRQ_VIRT_BASE          (BRIDGE_VIRT_BASE + 0x0200)

diff --git a/arch/arm/mach-kirkwood/include/mach/bridge-regs.h b/arch/arm/mach-kirkwood/include/mach/bridge-regs.h
index d4cbe5e..91242c9 100644 (file)
--- a/arch/arm/mach-kirkwood/include/mach/bridge-regs.h
+++ b/arch/arm/mach-kirkwood/include/mach/bridge-regs.h
@@ -21,14 +21,12 @@
 #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_INT_TIMER1_CLR  (~0x0004)
 

diff --git a/arch/arm/mach-orion5x/include/mach/bridge-regs.h b/arch/arm/mach-orion5x/include/mach/bridge-regs.h
index 461fd69..f727d03 100644 (file)
--- a/arch/arm/mach-orion5x/include/mach/bridge-regs.h
+++ b/arch/arm/mach-orion5x/include/mach/bridge-regs.h
@@ -18,7 +18,6 @@
 #define CPU_CTRL               (ORION5X_BRIDGE_VIRT_BASE + 0x104)
 
 #define RSTOUTn_MASK           (ORION5X_BRIDGE_VIRT_BASE + 0x108)
-#define WDT_RESET_OUT_EN       0x0002
 
 #define CPU_SOFT_RESET         (ORION5X_BRIDGE_VIRT_BASE + 0x10c)
 
@@ -26,8 +25,6 @@
 
 #define POWER_MNG_CTRL_REG     (ORION5X_BRIDGE_VIRT_BASE + 0x11C)
 
-#define WDT_INT_REQ            0x0008
-
 #define BRIDGE_INT_TIMER1_CLR  (~0x0004)
 
 #define MAIN_IRQ_CAUSE         (ORION5X_BRIDGE_VIRT_BASE + 0x200)

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index f17ffdb..b69e482 100644 (file)
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -282,7 +282,7 @@ config DAVINCI_WATCHDOG
 
 config ORION_WATCHDOG
        tristate "Orion watchdog"
-       depends on ARCH_ORION5X || ARCH_KIRKWOOD
+       depends on ARCH_ORION5X || ARCH_KIRKWOOD || ARCH_DOVE
        select WATCHDOG_CORE
        help
          Say Y here if to include support for the watchdog timer

diff --git a/drivers/watchdog/orion_wdt.c b/drivers/watchdog/orion_wdt.c
index da57798..4074244 100644 (file)
--- a/drivers/watchdog/orion_wdt.c
+++ b/drivers/watchdog/orion_wdt.c
@@ -38,6 +38,9 @@
 #define WDT_IN_USE             0
 #define WDT_OK_TO_CLOSE                1
 
+#define WDT_RESET_OUT_EN       BIT(1)
+#define WDT_INT_REQ            BIT(3)
+
 static bool nowayout = WATCHDOG_NOWAYOUT;
 static int heartbeat = -1;             /* module parameter (seconds) */
 static unsigned int wdt_max_duration;  /* (seconds) */