#include <linux/watchdog.h>
#include <linux/platform_device.h>
-#include <asm/mv64x60.h>
+#include <linux/mv643xx.h>
#include <asm/uaccess.h>
#include <asm/io.h>
+#define MV64x60_WDT_WDC_OFFSET 0
+
/* MV64x60 WDC (config) register access definitions */
#define MV64x60_WDC_CTL1_MASK (3 << 24)
#define MV64x60_WDC_CTL1(val) ((val & 3) << 24)
static unsigned long wdt_flags;
static int wdt_status;
-static void __iomem *mv64x60_regs;
+static void __iomem *mv64x60_wdt_regs;
static int mv64x60_wdt_timeout;
static void mv64x60_wdt_reg_write(u32 val)
/* Allow write only to CTL1 / CTL2 fields, retaining values in
* other fields.
*/
- u32 data = readl(mv64x60_regs + MV64x60_WDT_WDC);
+ u32 data = readl(mv64x60_wdt_regs + MV64x60_WDT_WDC_OFFSET);
data &= ~(MV64x60_WDC_CTL1_MASK | MV64x60_WDC_CTL2_MASK);
data |= val;
- writel(data, mv64x60_regs + MV64x60_WDT_WDC);
+ writel(data, mv64x60_wdt_regs + MV64x60_WDT_WDC_OFFSET);
}
static void mv64x60_wdt_service(void)
break;
default:
- return -ENOIOCTLCMD;
+ return -ENOTTY;
}
return 0;
{
struct mv64x60_wdt_pdata *pdata = dev->dev.platform_data;
int bus_clk = 133;
+ struct resource *r;
mv64x60_wdt_timeout = 10;
if (pdata) {
bus_clk = pdata->bus_clk;
}
- mv64x60_regs = mv64x60_get_bridge_vbase();
+ r = platform_get_resource(dev, IORESOURCE_MEM, 0);
+ if (!r)
+ return -ENODEV;
+
+ mv64x60_wdt_regs = ioremap(r->start, r->end - r->start + 1);
+ if (mv64x60_wdt_regs == NULL)
+ return -ENOMEM;
writel((mv64x60_wdt_timeout * (bus_clk * 1000000)) >> 8,
- mv64x60_regs + MV64x60_WDT_WDC);
+ mv64x60_wdt_regs + MV64x60_WDT_WDC_OFFSET);
return misc_register(&mv64x60_wdt_miscdev);
}
mv64x60_wdt_service();
mv64x60_wdt_handler_disable();
+ iounmap(mv64x60_wdt_regs);
+
return 0;
}
},
};
-static struct platform_device *mv64x60_wdt_dev;
-
static int __init mv64x60_wdt_init(void)
{
- int ret;
-
printk(KERN_INFO "MV64x60 watchdog driver\n");
- mv64x60_wdt_dev = platform_device_alloc(MV64x60_WDT_NAME, -1);
- if (!mv64x60_wdt_dev) {
- ret = -ENOMEM;
- goto out;
- }
-
- ret = platform_device_add(mv64x60_wdt_dev);
- if (ret) {
- platform_device_put(mv64x60_wdt_dev);
- goto out;
- }
-
- ret = platform_driver_register(&mv64x60_wdt_driver);
- if (ret) {
- platform_device_unregister(mv64x60_wdt_dev);
- goto out;
- }
-
- out:
- return ret;
+ return platform_driver_register(&mv64x60_wdt_driver);
}
static void __exit mv64x60_wdt_exit(void)
{
platform_driver_unregister(&mv64x60_wdt_driver);
- platform_device_unregister(mv64x60_wdt_dev);
}
module_init(mv64x60_wdt_init);