diff options
Diffstat (limited to 'drivers/watchdog/m54xx_wdt.c')
-rw-r--r-- | drivers/watchdog/m54xx_wdt.c | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/drivers/watchdog/m54xx_wdt.c b/drivers/watchdog/m54xx_wdt.c index 663cad86c63..173494a681e 100644 --- a/drivers/watchdog/m54xx_wdt.c +++ b/drivers/watchdog/m54xx_wdt.c | |||
@@ -46,17 +46,17 @@ static void wdt_enable(void) | |||
46 | unsigned int gms0; | 46 | unsigned int gms0; |
47 | 47 | ||
48 | /* preserve GPIO usage, if any */ | 48 | /* preserve GPIO usage, if any */ |
49 | gms0 = __raw_readl(MCF_MBAR + MCF_GPT_GMS0); | 49 | gms0 = __raw_readl(MCF_GPT_GMS0); |
50 | if (gms0 & MCF_GPT_GMS_TMS_GPIO) | 50 | if (gms0 & MCF_GPT_GMS_TMS_GPIO) |
51 | gms0 &= (MCF_GPT_GMS_TMS_GPIO | MCF_GPT_GMS_GPIO_MASK | 51 | gms0 &= (MCF_GPT_GMS_TMS_GPIO | MCF_GPT_GMS_GPIO_MASK |
52 | | MCF_GPT_GMS_OD); | 52 | | MCF_GPT_GMS_OD); |
53 | else | 53 | else |
54 | gms0 = MCF_GPT_GMS_TMS_GPIO | MCF_GPT_GMS_OD; | 54 | gms0 = MCF_GPT_GMS_TMS_GPIO | MCF_GPT_GMS_OD; |
55 | __raw_writel(gms0, MCF_MBAR + MCF_GPT_GMS0); | 55 | __raw_writel(gms0, MCF_GPT_GMS0); |
56 | __raw_writel(MCF_GPT_GCIR_PRE(heartbeat*(MCF_BUSCLK/0xffff)) | | 56 | __raw_writel(MCF_GPT_GCIR_PRE(heartbeat*(MCF_BUSCLK/0xffff)) | |
57 | MCF_GPT_GCIR_CNT(0xffff), MCF_MBAR + MCF_GPT_GCIR0); | 57 | MCF_GPT_GCIR_CNT(0xffff), MCF_GPT_GCIR0); |
58 | gms0 |= MCF_GPT_GMS_OCPW(0xA5) | MCF_GPT_GMS_WDEN | MCF_GPT_GMS_CE; | 58 | gms0 |= MCF_GPT_GMS_OCPW(0xA5) | MCF_GPT_GMS_WDEN | MCF_GPT_GMS_CE; |
59 | __raw_writel(gms0, MCF_MBAR + MCF_GPT_GMS0); | 59 | __raw_writel(gms0, MCF_GPT_GMS0); |
60 | } | 60 | } |
61 | 61 | ||
62 | static void wdt_disable(void) | 62 | static void wdt_disable(void) |
@@ -64,18 +64,18 @@ static void wdt_disable(void) | |||
64 | unsigned int gms0; | 64 | unsigned int gms0; |
65 | 65 | ||
66 | /* disable watchdog */ | 66 | /* disable watchdog */ |
67 | gms0 = __raw_readl(MCF_MBAR + MCF_GPT_GMS0); | 67 | gms0 = __raw_readl(MCF_GPT_GMS0); |
68 | gms0 &= ~(MCF_GPT_GMS_WDEN | MCF_GPT_GMS_CE); | 68 | gms0 &= ~(MCF_GPT_GMS_WDEN | MCF_GPT_GMS_CE); |
69 | __raw_writel(gms0, MCF_MBAR + MCF_GPT_GMS0); | 69 | __raw_writel(gms0, MCF_GPT_GMS0); |
70 | } | 70 | } |
71 | 71 | ||
72 | static void wdt_keepalive(void) | 72 | static void wdt_keepalive(void) |
73 | { | 73 | { |
74 | unsigned int gms0; | 74 | unsigned int gms0; |
75 | 75 | ||
76 | gms0 = __raw_readl(MCF_MBAR + MCF_GPT_GMS0); | 76 | gms0 = __raw_readl(MCF_GPT_GMS0); |
77 | gms0 |= MCF_GPT_GMS_OCPW(0xA5); | 77 | gms0 |= MCF_GPT_GMS_OCPW(0xA5); |
78 | __raw_writel(gms0, MCF_MBAR + MCF_GPT_GMS0); | 78 | __raw_writel(gms0, MCF_GPT_GMS0); |
79 | } | 79 | } |
80 | 80 | ||
81 | static int m54xx_wdt_open(struct inode *inode, struct file *file) | 81 | static int m54xx_wdt_open(struct inode *inode, struct file *file) |
@@ -195,8 +195,7 @@ static struct miscdevice m54xx_wdt_miscdev = { | |||
195 | 195 | ||
196 | static int __init m54xx_wdt_init(void) | 196 | static int __init m54xx_wdt_init(void) |
197 | { | 197 | { |
198 | if (!request_mem_region(MCF_MBAR + MCF_GPT_GCIR0, 4, | 198 | if (!request_mem_region(MCF_GPT_GCIR0, 4, "Coldfire M54xx Watchdog")) { |
199 | "Coldfire M54xx Watchdog")) { | ||
200 | pr_warn("I/O region busy\n"); | 199 | pr_warn("I/O region busy\n"); |
201 | return -EBUSY; | 200 | return -EBUSY; |
202 | } | 201 | } |
@@ -208,7 +207,7 @@ static int __init m54xx_wdt_init(void) | |||
208 | static void __exit m54xx_wdt_exit(void) | 207 | static void __exit m54xx_wdt_exit(void) |
209 | { | 208 | { |
210 | misc_deregister(&m54xx_wdt_miscdev); | 209 | misc_deregister(&m54xx_wdt_miscdev); |
211 | release_mem_region(MCF_MBAR + MCF_GPT_GCIR0, 4); | 210 | release_mem_region(MCF_GPT_GCIR0, 4); |
212 | } | 211 | } |
213 | 212 | ||
214 | module_init(m54xx_wdt_init); | 213 | module_init(m54xx_wdt_init); |