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path: root/drivers/watchdog/geodewdt.c
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Diffstat (limited to 'drivers/watchdog/geodewdt.c')
-rw-r--r--drivers/watchdog/geodewdt.c40
1 files changed, 19 insertions, 21 deletions
diff --git a/drivers/watchdog/geodewdt.c b/drivers/watchdog/geodewdt.c
index 9acf0015a1e7..38252ff828ca 100644
--- a/drivers/watchdog/geodewdt.c
+++ b/drivers/watchdog/geodewdt.c
@@ -1,6 +1,7 @@
-/* Watchdog timer for the Geode GX/LX with the CS5535/CS5536 companion chip
+/* Watchdog timer for machines with the CS5535/CS5536 companion chip
*
* Copyright (C) 2006-2007, Advanced Micro Devices, Inc.
+ * Copyright (C) 2009 Andres Salomon <dilinger@collabora.co.uk>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -19,7 +20,7 @@
#include <linux/reboot.h>
#include <linux/uaccess.h>
-#include <asm/geode.h>
+#include <linux/cs5535.h>
#define GEODEWDT_HZ 500
#define GEODEWDT_SCALE 6
@@ -46,25 +47,25 @@ MODULE_PARM_DESC(nowayout,
static struct platform_device *geodewdt_platform_device;
static unsigned long wdt_flags;
-static int wdt_timer;
+static struct cs5535_mfgpt_timer *wdt_timer;
static int safe_close;
static void geodewdt_ping(void)
{
/* Stop the counter */
- geode_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, 0);
+ cs5535_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, 0);
/* Reset the counter */
- geode_mfgpt_write(wdt_timer, MFGPT_REG_COUNTER, 0);
+ cs5535_mfgpt_write(wdt_timer, MFGPT_REG_COUNTER, 0);
/* Enable the counter */
- geode_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, MFGPT_SETUP_CNTEN);
+ cs5535_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, MFGPT_SETUP_CNTEN);
}
static void geodewdt_disable(void)
{
- geode_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, 0);
- geode_mfgpt_write(wdt_timer, MFGPT_REG_COUNTER, 0);
+ cs5535_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, 0);
+ cs5535_mfgpt_write(wdt_timer, MFGPT_REG_COUNTER, 0);
}
static int geodewdt_set_heartbeat(int val)
@@ -72,10 +73,10 @@ static int geodewdt_set_heartbeat(int val)
if (val < 1 || val > GEODEWDT_MAX_SECONDS)
return -EINVAL;
- geode_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, 0);
- geode_mfgpt_write(wdt_timer, MFGPT_REG_CMP2, val * GEODEWDT_HZ);
- geode_mfgpt_write(wdt_timer, MFGPT_REG_COUNTER, 0);
- geode_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, MFGPT_SETUP_CNTEN);
+ cs5535_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, 0);
+ cs5535_mfgpt_write(wdt_timer, MFGPT_REG_CMP2, val * GEODEWDT_HZ);
+ cs5535_mfgpt_write(wdt_timer, MFGPT_REG_COUNTER, 0);
+ cs5535_mfgpt_write(wdt_timer, MFGPT_REG_SETUP, MFGPT_SETUP_CNTEN);
timeout = val;
return 0;
@@ -215,28 +216,25 @@ static struct miscdevice geodewdt_miscdev = {
static int __devinit geodewdt_probe(struct platform_device *dev)
{
- int ret, timer;
-
- timer = geode_mfgpt_alloc_timer(MFGPT_TIMER_ANY, MFGPT_DOMAIN_WORKING);
+ int ret;
- if (timer == -1) {
+ wdt_timer = cs5535_mfgpt_alloc_timer(MFGPT_TIMER_ANY, MFGPT_DOMAIN_WORKING);
+ if (!wdt_timer) {
printk(KERN_ERR "geodewdt: No timers were available\n");
return -ENODEV;
}
- wdt_timer = timer;
-
/* Set up the timer */
- geode_mfgpt_write(wdt_timer, MFGPT_REG_SETUP,
+ cs5535_mfgpt_write(wdt_timer, MFGPT_REG_SETUP,
GEODEWDT_SCALE | (3 << 8));
/* Set up comparator 2 to reset when the event fires */
- geode_mfgpt_toggle_event(wdt_timer, MFGPT_CMP2, MFGPT_EVENT_RESET, 1);
+ cs5535_mfgpt_toggle_event(wdt_timer, MFGPT_CMP2, MFGPT_EVENT_RESET, 1);
/* Set up the initial timeout */
- geode_mfgpt_write(wdt_timer, MFGPT_REG_CMP2,
+ cs5535_mfgpt_write(wdt_timer, MFGPT_REG_CMP2,
timeout * GEODEWDT_HZ);
ret = misc_register(&geodewdt_miscdev);