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Diffstat (limited to 'drivers/watchdog/m548x_wdt.c')
-rw-r--r--drivers/watchdog/m548x_wdt.c50
1 files changed, 25 insertions, 25 deletions
diff --git a/drivers/watchdog/m548x_wdt.c b/drivers/watchdog/m548x_wdt.c
index cabbcfe1c847..4d43286074aa 100644
--- a/drivers/watchdog/m548x_wdt.c
+++ b/drivers/watchdog/m548x_wdt.c
@@ -1,7 +1,7 @@
1/* 1/*
2 * drivers/watchdog/m548x_wdt.c 2 * drivers/watchdog/m54xx_wdt.c
3 * 3 *
4 * Watchdog driver for ColdFire MCF548x processors 4 * Watchdog driver for ColdFire MCF547x & MCF548x processors
5 * Copyright 2010 (c) Philippe De Muyter <phdm@macqel.be> 5 * Copyright 2010 (c) Philippe De Muyter <phdm@macqel.be>
6 * 6 *
7 * Adapted from the IXP4xx watchdog driver, which carries these notices: 7 * Adapted from the IXP4xx watchdog driver, which carries these notices:
@@ -29,8 +29,8 @@
29#include <linux/uaccess.h> 29#include <linux/uaccess.h>
30 30
31#include <asm/coldfire.h> 31#include <asm/coldfire.h>
32#include <asm/m548xsim.h> 32#include <asm/m54xxsim.h>
33#include <asm/m548xgpt.h> 33#include <asm/m54xxgpt.h>
34 34
35static int nowayout = WATCHDOG_NOWAYOUT; 35static int nowayout = WATCHDOG_NOWAYOUT;
36static unsigned int heartbeat = 30; /* (secs) Default is 0.5 minute */ 36static unsigned int heartbeat = 30; /* (secs) Default is 0.5 minute */
@@ -76,7 +76,7 @@ static void wdt_keepalive(void)
76 __raw_writel(gms0, MCF_MBAR + MCF_GPT_GMS0); 76 __raw_writel(gms0, MCF_MBAR + MCF_GPT_GMS0);
77} 77}
78 78
79static int m548x_wdt_open(struct inode *inode, struct file *file) 79static int m54xx_wdt_open(struct inode *inode, struct file *file)
80{ 80{
81 if (test_and_set_bit(WDT_IN_USE, &wdt_status)) 81 if (test_and_set_bit(WDT_IN_USE, &wdt_status))
82 return -EBUSY; 82 return -EBUSY;
@@ -86,7 +86,7 @@ static int m548x_wdt_open(struct inode *inode, struct file *file)
86 return nonseekable_open(inode, file); 86 return nonseekable_open(inode, file);
87} 87}
88 88
89static ssize_t m548x_wdt_write(struct file *file, const char *data, 89static ssize_t m54xx_wdt_write(struct file *file, const char *data,
90 size_t len, loff_t *ppos) 90 size_t len, loff_t *ppos)
91{ 91{
92 if (len) { 92 if (len) {
@@ -112,10 +112,10 @@ static ssize_t m548x_wdt_write(struct file *file, const char *data,
112static const struct watchdog_info ident = { 112static const struct watchdog_info ident = {
113 .options = WDIOF_MAGICCLOSE | WDIOF_SETTIMEOUT | 113 .options = WDIOF_MAGICCLOSE | WDIOF_SETTIMEOUT |
114 WDIOF_KEEPALIVEPING, 114 WDIOF_KEEPALIVEPING,
115 .identity = "Coldfire M548x Watchdog", 115 .identity = "Coldfire M54xx Watchdog",
116}; 116};
117 117
118static long m548x_wdt_ioctl(struct file *file, unsigned int cmd, 118static long m54xx_wdt_ioctl(struct file *file, unsigned int cmd,
119 unsigned long arg) 119 unsigned long arg)
120{ 120{
121 int ret = -ENOTTY; 121 int ret = -ENOTTY;
@@ -161,7 +161,7 @@ static long m548x_wdt_ioctl(struct file *file, unsigned int cmd,
161 return ret; 161 return ret;
162} 162}
163 163
164static int m548x_wdt_release(struct inode *inode, struct file *file) 164static int m54xx_wdt_release(struct inode *inode, struct file *file)
165{ 165{
166 if (test_bit(WDT_OK_TO_CLOSE, &wdt_status)) 166 if (test_bit(WDT_OK_TO_CLOSE, &wdt_status))
167 wdt_disable(); 167 wdt_disable();
@@ -177,45 +177,45 @@ static int m548x_wdt_release(struct inode *inode, struct file *file)
177} 177}
178 178
179 179
180static const struct file_operations m548x_wdt_fops = { 180static const struct file_operations m54xx_wdt_fops = {
181 .owner = THIS_MODULE, 181 .owner = THIS_MODULE,
182 .llseek = no_llseek, 182 .llseek = no_llseek,
183 .write = m548x_wdt_write, 183 .write = m54xx_wdt_write,
184 .unlocked_ioctl = m548x_wdt_ioctl, 184 .unlocked_ioctl = m54xx_wdt_ioctl,
185 .open = m548x_wdt_open, 185 .open = m54xx_wdt_open,
186 .release = m548x_wdt_release, 186 .release = m54xx_wdt_release,
187}; 187};
188 188
189static struct miscdevice m548x_wdt_miscdev = { 189static struct miscdevice m54xx_wdt_miscdev = {
190 .minor = WATCHDOG_MINOR, 190 .minor = WATCHDOG_MINOR,
191 .name = "watchdog", 191 .name = "watchdog",
192 .fops = &m548x_wdt_fops, 192 .fops = &m54xx_wdt_fops,
193}; 193};
194 194
195static int __init m548x_wdt_init(void) 195static int __init m54xx_wdt_init(void)
196{ 196{
197 if (!request_mem_region(MCF_MBAR + MCF_GPT_GCIR0, 4, 197 if (!request_mem_region(MCF_MBAR + MCF_GPT_GCIR0, 4,
198 "Coldfire M548x Watchdog")) { 198 "Coldfire M54xx Watchdog")) {
199 printk(KERN_WARNING 199 printk(KERN_WARNING
200 "Coldfire M548x Watchdog : I/O region busy\n"); 200 "Coldfire M54xx Watchdog : I/O region busy\n");
201 return -EBUSY; 201 return -EBUSY;
202 } 202 }
203 printk(KERN_INFO "ColdFire watchdog driver is loaded.\n"); 203 printk(KERN_INFO "ColdFire watchdog driver is loaded.\n");
204 204
205 return misc_register(&m548x_wdt_miscdev); 205 return misc_register(&m54xx_wdt_miscdev);
206} 206}
207 207
208static void __exit m548x_wdt_exit(void) 208static void __exit m54xx_wdt_exit(void)
209{ 209{
210 misc_deregister(&m548x_wdt_miscdev); 210 misc_deregister(&m54xx_wdt_miscdev);
211 release_mem_region(MCF_MBAR + MCF_GPT_GCIR0, 4); 211 release_mem_region(MCF_MBAR + MCF_GPT_GCIR0, 4);
212} 212}
213 213
214module_init(m548x_wdt_init); 214module_init(m54xx_wdt_init);
215module_exit(m548x_wdt_exit); 215module_exit(m54xx_wdt_exit);
216 216
217MODULE_AUTHOR("Philippe De Muyter <phdm@macqel.be>"); 217MODULE_AUTHOR("Philippe De Muyter <phdm@macqel.be>");
218MODULE_DESCRIPTION("Coldfire M548x Watchdog"); 218MODULE_DESCRIPTION("Coldfire M54xx Watchdog");
219 219
220module_param(heartbeat, int, 0); 220module_param(heartbeat, int, 0);
221MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds (default 30s)"); 221MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds (default 30s)");