From 054bd3f053de54c81b20df11f354476389826e61 Mon Sep 17 00:00:00 2001
From: Thomas Reitmayr <treitmayr@devbase.at>
Date: Mon, 1 Jun 2009 13:38:34 +0200
Subject: [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>
---
 arch/arm/mach-kirkwood/common.c                   | 25 +++++++++++++++++++++++
 arch/arm/mach-kirkwood/include/mach/bridge-regs.h |  3 +++
 2 files changed, 28 insertions(+)

(limited to 'arch/arm/mach-kirkwood')

diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
index d127731f47dc..a053184bdee5 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"
 
@@ -767,6 +768,29 @@ static void __init kirkwood_xor1_init(void)
 }
 
 
+/*****************************************************************************
+ * 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
  ****************************************************************************/
@@ -859,6 +883,7 @@ void __init kirkwood_init(void)
 
 	/* 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 00d96abb718c..9e80d9232c83 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
-- 
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