1 files changed, 0 insertions, 295 deletions
diff --git a/drivers/sbus/char/riowatchdog.c b/drivers/sbus/char/riowatchdog.c
deleted file mode 100644
index 88c0fc6395e1..000000000000
--- a/drivers/sbus/char/riowatchdog.c
+++ /dev/null
@@ -1,295 +0,0 @@
-/* $Id: riowatchdog.c,v 1.3.2.2 2002/01/23 18:48:02 davem Exp $
- * riowatchdog.c - driver for hw watchdog inside Super I/O of RIO
- *
- * Copyright (C) 2001 David S. Miller (davem@redhat.com)
- */
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/fs.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/miscdevice.h>
-#include <linux/smp_lock.h>
-
-#include <asm/io.h>
-#include <asm/ebus.h>
-#include <asm/bbc.h>
-#include <asm/oplib.h>
-#include <asm/uaccess.h>
-
-#include <asm/watchdog.h>
-
-/* RIO uses the NatSemi Super I/O power management logical device
- * as its' watchdog.
- *
- * When the watchdog triggers, it asserts a line to the BBC (Boot Bus
- * Controller) of the machine.  The BBC can only be configured to
- * trigger a power-on reset when the signal is asserted.  The BBC
- * can be configured to ignore the signal entirely as well.
- *
- * The only Super I/O device register we care about is at index
- * 0x05 (WDTO_INDEX) which is the watchdog time-out in minutes (1-255).
- * If set to zero, this disables the watchdog.  When set, the system
- * must periodically (before watchdog expires) clear (set to zero) and
- * re-set the watchdog else it will trigger.
- *
- * There are two other indexed watchdog registers inside this Super I/O
- * logical device, but they are unused.  The first, at index 0x06 is
- * the watchdog control and can be used to make the watchdog timer re-set
- * when the PS/2 mouse or serial lines show activity.  The second, at
- * index 0x07 is merely a sampling of the line from the watchdog to the
- * BBC.
- *
- * The watchdog device generates no interrupts.
- */
-
-MODULE_AUTHOR("David S. Miller <davem@redhat.com>");
-MODULE_DESCRIPTION("Hardware watchdog driver for Sun RIO");
-MODULE_SUPPORTED_DEVICE("watchdog");
-MODULE_LICENSE("GPL");
-
-#define RIOWD_NAME	"pmc"
-#define RIOWD_MINOR	215
-
-static DEFINE_SPINLOCK(riowd_lock);
-
-static void __iomem *bbc_regs;
-static void __iomem *riowd_regs;
-#define WDTO_INDEX	0x05
-
-static int riowd_timeout = 1;		/* in minutes */
-module_param(riowd_timeout, int, 0);
-MODULE_PARM_DESC(riowd_timeout, "Watchdog timeout in minutes");
-
-#if 0 /* Currently unused. */
-static u8 riowd_readreg(int index)
-{
-	unsigned long flags;
-	u8 ret;
-
-	spin_lock_irqsave(&riowd_lock, flags);
-	writeb(index, riowd_regs + 0);
-	ret = readb(riowd_regs + 1);
-	spin_unlock_irqrestore(&riowd_lock, flags);
-
-	return ret;
-}
-#endif
-
-static void riowd_writereg(u8 val, int index)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&riowd_lock, flags);
-	writeb(index, riowd_regs + 0);
-	writeb(val, riowd_regs + 1);
-	spin_unlock_irqrestore(&riowd_lock, flags);
-}
-
-static void riowd_pingtimer(void)
-{
-	riowd_writereg(riowd_timeout, WDTO_INDEX);
-}
-
-static void riowd_stoptimer(void)
-{
-	u8 val;
-
-	riowd_writereg(0, WDTO_INDEX);
-
-	val = readb(bbc_regs + BBC_WDACTION);
-	val &= ~BBC_WDACTION_RST;
-	writeb(val, bbc_regs + BBC_WDACTION);
-}
-
-static void riowd_starttimer(void)
-{
-	u8 val;
-
-	riowd_writereg(riowd_timeout, WDTO_INDEX);
-
-	val = readb(bbc_regs + BBC_WDACTION);
-	val |= BBC_WDACTION_RST;
-	writeb(val, bbc_regs + BBC_WDACTION);
-}
-
-static int riowd_open(struct inode *inode, struct file *filp)
-{
-	cycle_kernel_lock();
-	nonseekable_open(inode, filp);
-	return 0;
-}
-
-static int riowd_release(struct inode *inode, struct file *filp)
-{
-	return 0;
-}
-
-static int riowd_ioctl(struct inode *inode, struct file *filp,
-		       unsigned int cmd, unsigned long arg)
-{
-	static struct watchdog_info info = {
-	       	WDIOF_SETTIMEOUT, 0, "Natl. Semiconductor PC97317"
-	};
-	void __user *argp = (void __user *)arg;
-	unsigned int options;
-	int new_margin;
-
-	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(0, (int __user *)argp))
-			return -EFAULT;
-		break;
-
-	case WDIOC_KEEPALIVE:
-		riowd_pingtimer();
-		break;
-
-	case WDIOC_SETOPTIONS:
-		if (copy_from_user(&options, argp, sizeof(options)))
-			return -EFAULT;
-
-		if (options & WDIOS_DISABLECARD)
-			riowd_stoptimer();
-		else if (options & WDIOS_ENABLECARD)
-			riowd_starttimer();
-		else
-			return -EINVAL;
-
-		break;
-
-	case WDIOC_SETTIMEOUT:
-		if (get_user(new_margin, (int __user *)argp))
-			return -EFAULT;
-		if ((new_margin < 60) || (new_margin > (255 * 60)))
-		    return -EINVAL;
-		riowd_timeout = (new_margin + 59) / 60;
-		riowd_pingtimer();
-		/* Fall */
-
-	case WDIOC_GETTIMEOUT:
-		return put_user(riowd_timeout * 60, (int __user *)argp);
-
-	default:
-		return -EINVAL;
-	};
-
-	return 0;
-}
-
-static ssize_t riowd_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos)
-{
-	if (count) {
-		riowd_pingtimer();
-		return 1;
-	}
-
-	return 0;
-}
-
-static const struct file_operations riowd_fops = {
-	.owner =	THIS_MODULE,
-	.ioctl =	riowd_ioctl,
-	.open =		riowd_open,
-	.write =	riowd_write,
-	.release =	riowd_release,
-};
-
-static struct miscdevice riowd_miscdev = { RIOWD_MINOR, RIOWD_NAME, &riowd_fops };
-
-static int __init riowd_bbc_init(void)
-{
-	struct 	linux_ebus *ebus = NULL;
-	struct 	linux_ebus_device *edev = NULL;
-	u8 val;
-
-	for_each_ebus(ebus) {
-		for_each_ebusdev(edev, ebus) {
-			if (!strcmp(edev->ofdev.node->name, "bbc"))
-				goto found_bbc;
-		}
-	}
-
-found_bbc:
-	if (!edev)
-		return -ENODEV;
-	bbc_regs = ioremap(edev->resource[0].start, BBC_REGS_SIZE);
-	if (!bbc_regs)
-		return -ENODEV;
-
-	/* Turn it off. */
-	val = readb(bbc_regs + BBC_WDACTION);
-	val &= ~BBC_WDACTION_RST;
-	writeb(val, bbc_regs + BBC_WDACTION);
-
-	return 0;
-}
-
-static int __init riowd_init(void)
-{
-	struct 	linux_ebus *ebus = NULL;
-	struct 	linux_ebus_device *edev = NULL;
-
-	for_each_ebus(ebus) {
-		for_each_ebusdev(edev, ebus) {
-			if (!strcmp(edev->ofdev.node->name, RIOWD_NAME))
-				goto ebus_done;
-		}
-	}
-
-ebus_done:
-	if (!edev)
-		goto fail;
-
-	riowd_regs = ioremap(edev->resource[0].start, 2);
-	if (riowd_regs == NULL) {
-		printk(KERN_ERR "pmc: Cannot map registers.\n");
-		return -ENODEV;
-	}
-
-	if (riowd_bbc_init()) {
-		printk(KERN_ERR "pmc: Failure initializing BBC config.\n");
-		goto fail;
-	}
-
-	if (misc_register(&riowd_miscdev)) {
-		printk(KERN_ERR "pmc: Cannot register watchdog misc device.\n");
-		goto fail;
-	}
-
-	printk(KERN_INFO "pmc: Hardware watchdog [%i minutes], "
-	       "regs at %p\n", riowd_timeout, riowd_regs);
-
-	return 0;
-
-fail:
-	if (riowd_regs) {
-		iounmap(riowd_regs);
-		riowd_regs = NULL;
-	}
-	if (bbc_regs) {
-		iounmap(bbc_regs);
-		bbc_regs = NULL;
-	}
-	return -ENODEV;
-}
-
-static void __exit riowd_cleanup(void)
-{
-	misc_deregister(&riowd_miscdev);
-	iounmap(riowd_regs);
-	riowd_regs = NULL;
-	iounmap(bbc_regs);
-	bbc_regs = NULL;
-}
-
-module_init(riowd_init);
-module_exit(riowd_cleanup);