[WATHDOG] delete unused driver mpc8xx_wdt.c

The watchdog driver mpc8xx_wdt.c was a device interface to
arch/ppc/syslib/m8xx_wdt.c for MPC8xx hardware. Now that ARCH=ppc is
gone, this driver is of no more use. For ARCH=powerpc, MPC8xx hardware
is supported by mpc8xxx_wdt.c.

Signed-off-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Acked-by: Vitaly Bordug <vitb@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

3 files changed, 0 insertions, 175 deletions

diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index db20542796bf..a8e80f2eb8ae 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -692,10 +692,6 @@ config MPC5200_WDT
         tristate "MPC5200 Watchdog Timer"
         depends on PPC_MPC52xx
 
-config 8xx_WDT
-        tristate "MPC8xx Watchdog Timer"
-        depends on 8xx
-
 config 8xxx_WDT
         tristate "MPC8xxx Platform Watchdog Timer"
         depends on PPC_8xx || PPC_83xx || PPC_86xx
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index ca3dc043d786..1b5c0118cfe6 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -104,7 +104,6 @@ obj-$(CONFIG_TXX9_WDT) += txx9wdt.o
 # PARISC Architecture
 
 # POWERPC Architecture
-obj-$(CONFIG_8xx_WDT) += mpc8xx_wdt.o
 obj-$(CONFIG_MPC5200_WDT) += mpc5200_wdt.o
 obj-$(CONFIG_8xxx_WDT) += mpc8xxx_wdt.o
 obj-$(CONFIG_MV64X60_WDT) += mv64x60_wdt.o
diff --git a/drivers/watchdog/mpc8xx_wdt.c b/drivers/watchdog/mpc8xx_wdt.c
deleted file mode 100644
index 1336425acf20..000000000000
--- a/drivers/watchdog/mpc8xx_wdt.c
+++ /dev/null
@@ -1,170 +0,0 @@
-/*
- * mpc8xx_wdt.c - MPC8xx watchdog userspace interface
- *
- * Author: Florian Schirmer <jolt@tuxbox.org>
- *
- * 2002 (c) Florian Schirmer <jolt@tuxbox.org> This file is licensed under
- * the terms of the GNU General Public License version 2. This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-
-#include <linux/fs.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/miscdevice.h>
-#include <linux/module.h>
-#include <linux/watchdog.h>
-#include <asm/8xx_immap.h>
-#include <linux/uaccess.h>
-#include <linux/io.h>
-#include <syslib/m8xx_wdt.h>
-
-static unsigned long wdt_opened;
-static int wdt_status;
-static spinlock_t wdt_lock;
-
-static void mpc8xx_wdt_handler_disable(void)
-{
-        volatile uint __iomem *piscr;
-        piscr = (uint *)&((immap_t *)IMAP_ADDR)->im_sit.sit_piscr;
-
-        if (!m8xx_has_internal_rtc)
-                m8xx_wdt_stop_timer();
-        else
-                out_be32(piscr, in_be32(piscr) & ~(PISCR_PIE | PISCR_PTE));
-        printk(KERN_NOTICE "mpc8xx_wdt: keep-alive handler deactivated\n");
-}
-
-static void mpc8xx_wdt_handler_enable(void)
-{
-        volatile uint __iomem *piscr;
-        piscr = (uint *)&((immap_t *)IMAP_ADDR)->im_sit.sit_piscr;
-
-        if (!m8xx_has_internal_rtc)
-                m8xx_wdt_install_timer();
-        else
-                out_be32(piscr, in_be32(piscr) | PISCR_PIE | PISCR_PTE);
-        printk(KERN_NOTICE "mpc8xx_wdt: keep-alive handler activated\n");
-}
-
-static int mpc8xx_wdt_open(struct inode *inode, struct file *file)
-{
-        if (test_and_set_bit(0, &wdt_opened))
-                return -EBUSY;
-        m8xx_wdt_reset();
-        mpc8xx_wdt_handler_disable();
-        return nonseekable_open(inode, file);
-}
-
-static int mpc8xx_wdt_release(struct inode *inode, struct file *file)
-{
-        m8xx_wdt_reset();
-#if !defined(CONFIG_WATCHDOG_NOWAYOUT)
-        mpc8xx_wdt_handler_enable();
-#endif
-        clear_bit(0, &wdt_opened);
-        return 0;
-}
-
-static ssize_t mpc8xx_wdt_write(struct file *file, const char *data,
-                                                size_t len, loff_t *ppos)
-{
-        if (len) {
-                spin_lock(&wdt_lock);
-                m8xx_wdt_reset();
-                spin_unlock(&wdt_lock);
-        }
-        return len;
-}
-
-static long mpc8xx_wdt_ioctl(struct file *file,
-                                        unsigned int cmd, unsigned long arg)
-{
-        int timeout;
-        static struct watchdog_info info = {
-                .options = WDIOF_KEEPALIVEPING,
-                .firmware_version = 0,
-                .identity = "MPC8xx watchdog",
-        };
-
-        switch (cmd) {
-        case WDIOC_GETSUPPORT:
-                if (copy_to_user((void *)arg, &info, sizeof(info)))
-                        return -EFAULT;
-                break;
-
-        case WDIOC_GETSTATUS:
-        case WDIOC_GETBOOTSTATUS:
-                if (put_user(wdt_status, (int *)arg))
-                        return -EFAULT;
-                wdt_status &= ~WDIOF_KEEPALIVEPING;
-                break;
-
-        case WDIOC_GETTEMP:
-                return -EOPNOTSUPP;
-
-        case WDIOC_SETOPTIONS:
-                return -EOPNOTSUPP;
-
-        case WDIOC_KEEPALIVE:
-                spin_lock(&wdt_lock);
-                m8xx_wdt_reset();
-                wdt_status |= WDIOF_KEEPALIVEPING;
-                spin_unlock(&wdt_lock);
-                break;
-
-        case WDIOC_SETTIMEOUT:
-                return -EOPNOTSUPP;
-
-        case WDIOC_GETTIMEOUT:
-                spin_lock(&wdt_lock);
-                timeout = m8xx_wdt_get_timeout();
-                spin_unlock(&wdt_lock);
-                if (put_user(timeout, (int *)arg))
-                        return -EFAULT;
-                break;
-
-        default:
-                return -ENOTTY;
-        }
-
-        return 0;
-}
-
-static const struct file_operations mpc8xx_wdt_fops = {
-        .owner = THIS_MODULE,
-        .llseek = no_llseek,
-        .write = mpc8xx_wdt_write,
-        .unlocked_ioctl = mpc8xx_wdt_ioctl,
-        .open = mpc8xx_wdt_open,
-        .release = mpc8xx_wdt_release,
-};
-
-static struct miscdevice mpc8xx_wdt_miscdev = {
-        .minor = WATCHDOG_MINOR,
-        .name = "watchdog",
-        .fops = &mpc8xx_wdt_fops,
-};
-
-static int __init mpc8xx_wdt_init(void)
-{
-        spin_lock_init(&wdt_lock);
-        return misc_register(&mpc8xx_wdt_miscdev);
-}
-
-static void __exit mpc8xx_wdt_exit(void)
-{
-        misc_deregister(&mpc8xx_wdt_miscdev);
-
-        m8xx_wdt_reset();
-        mpc8xx_wdt_handler_enable();
-}
-
-module_init(mpc8xx_wdt_init);
-module_exit(mpc8xx_wdt_exit);
-
-MODULE_AUTHOR("Florian Schirmer <jolt@tuxbox.org>");
-MODULE_DESCRIPTION("MPC8xx watchdog driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);