/* mv64360_init_irq()
*
* This function initializes the interrupt controller. It assigns
* all interrupts from IRQ0 to IRQ95 to the mv64360 interrupt controller.
*
* Input Variable(s):
* None.
*
* Outpu. Variable(s):
* None.
*
* Returns:
* void
*
* Note:
* We register all GPP inputs as interrupt source, but disable them.
*/
void __init
mv64360_init_irq(void)
{
int i;
if (ppc_md.progress)
ppc_md.progress("mv64360_init_irq: enter", 0x0);
bh.v_base = mv64x60_get_bridge_vbase();
ppc_cached_irq_mask[0] = 0;
ppc_cached_irq_mask[1] = 0x0f000000; /* Enable GPP intrs */
ppc_cached_irq_mask[2] = 0;
/* disable all interrupts and clear current interrupts */
mv64x60_write(&bh, MV64x60_GPP_INTR_CAUSE, 0);
mv64x60_write(&bh, MV64x60_GPP_INTR_MASK, ppc_cached_irq_mask[2]);
mv64x60_write(&bh, MV64360_IC_CPU0_INTR_MASK_LO,ppc_cached_irq_mask[0]);
mv64x60_write(&bh, MV64360_IC_CPU0_INTR_MASK_HI,ppc_cached_irq_mask[1]);
/* All interrupts are level interrupts */
for (i = mv64360_irq_base; i < (mv64360_irq_base + 96); i++) {
irq_desc[i].status |= IRQ_LEVEL;
irq_desc[i].chip = &mv64360_pic;
}
if (ppc_md.progress)
ppc_md.progress("mv64360_init_irq: exit", 0x0);
}
/* gt64260_init_irq()
*
* This function initializes the interrupt controller. It assigns
* all interrupts from IRQ0 to IRQ95 to the gt64260 interrupt controller.
*
* Note:
* We register all GPP inputs as interrupt source, but disable them.
*/
void __init
gt64260_init_irq(void)
{
int i;
if (ppc_md.progress)
ppc_md.progress("gt64260_init_irq: enter", 0x0);
bh.v_base = mv64x60_get_bridge_vbase();
ppc_cached_irq_mask[0] = 0;
ppc_cached_irq_mask[1] = 0x0f000000; /* Enable GPP intrs */
ppc_cached_irq_mask[2] = 0;
/* disable all interrupts and clear current interrupts */
mv64x60_write(&bh, MV64x60_GPP_INTR_MASK, ppc_cached_irq_mask[2]);
mv64x60_write(&bh, MV64x60_GPP_INTR_CAUSE, 0);
mv64x60_write(&bh, GT64260_IC_CPU_INTR_MASK_LO, ppc_cached_irq_mask[0]);
mv64x60_write(&bh, GT64260_IC_CPU_INTR_MASK_HI, ppc_cached_irq_mask[1]);
/* use the gt64260 for all (possible) interrupt sources */
for (i = gt64260_irq_base; i < (gt64260_irq_base + 96); i++)
irq_desc[i].handler = >64260_pic;
if (ppc_md.progress)
ppc_md.progress("gt64260_init_irq: exit", 0x0);
}
static int mv64x60_wdt_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
int timeout;
void __user *argp = (void __user *)arg;
static struct watchdog_info info = {
.options = WDIOF_KEEPALIVEPING,
.firmware_version = 0,
.identity = "MV64x60 watchdog",
};
switch (cmd) {
case WDIOC_GETSUPPORT:
if (copy_to_user(argp, &info, sizeof(info)))
return -EFAULT;
break;
case WDIOC_GETSTATUS:
case WDIOC_GETBOOTSTATUS:
if (put_user(wdt_status, (int __user *)argp))
return -EFAULT;
wdt_status &= ~WDIOF_KEEPALIVEPING;
break;
case WDIOC_GETTEMP:
return -EOPNOTSUPP;
case WDIOC_SETOPTIONS:
return -EOPNOTSUPP;
case WDIOC_KEEPALIVE:
mv64x60_wdt_service();
wdt_status |= WDIOF_KEEPALIVEPING;
break;
case WDIOC_SETTIMEOUT:
return -EOPNOTSUPP;
case WDIOC_GETTIMEOUT:
timeout = mv64x60_wdt_timeout * HZ;
if (put_user(timeout, (int __user *)argp))
return -EFAULT;
break;
default:
return -ENOIOCTLCMD;
}
return 0;
}
static struct file_operations mv64x60_wdt_fops = {
.owner = THIS_MODULE,
.llseek = no_llseek,
.write = mv64x60_wdt_write,
.ioctl = mv64x60_wdt_ioctl,
.open = mv64x60_wdt_open,
.release = mv64x60_wdt_release,
};
static struct miscdevice mv64x60_wdt_miscdev = {
.minor = WATCHDOG_MINOR,
.name = "watchdog",
.fops = &mv64x60_wdt_fops,
};
static int __devinit mv64x60_wdt_probe(struct platform_device *dev)
{
struct mv64x60_wdt_pdata *pdata = dev->dev.platform_data;
int bus_clk = 133;
mv64x60_wdt_timeout = 10;
if (pdata) {
mv64x60_wdt_timeout = pdata->timeout;
bus_clk = pdata->bus_clk;
}
mv64x60_regs = mv64x60_get_bridge_vbase();
writel((mv64x60_wdt_timeout * (bus_clk * 1000000)) >> 8,
mv64x60_regs + MV64x60_WDT_WDC);
return misc_register(&mv64x60_wdt_miscdev);
}
static int __devexit mv64x60_wdt_remove(struct platform_device *dev)
{
misc_deregister(&mv64x60_wdt_miscdev);
mv64x60_wdt_service();
mv64x60_wdt_handler_disable();
return 0;
}
static struct platform_driver mv64x60_wdt_driver = {
.probe = mv64x60_wdt_probe,
.remove = __devexit_p(mv64x60_wdt_remove),
.driver = {
.owner = THIS_MODULE,
.name = MV64x60_WDT_NAME,
},
};
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_register_simple(MV64x60_WDT_NAME,
-1, NULL, 0);
if (IS_ERR(mv64x60_wdt_dev)) {
ret = PTR_ERR(mv64x60_wdt_dev);
goto out;
}
ret = platform_driver_register(&mv64x60_wdt_driver);
out:
return ret;
}
