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Date: Thu, 24 Jul 2008 12:22:05 +0200
From: Jochen Friedrich <jochen@...am.de>
To: wim@...ana.be
CC: linuxppc-dev list <linuxppc-dev@...abs.org>,
Kumar Gala <galak@...nel.crashing.org>,
Anton Vorontsov <avorontsov@...mvista.com>,
"Kernel, Linux" <linux-kernel@...r.kernel.org>
Subject: [PATCH] watchdog: 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@...am.de>
---
drivers/watchdog/Kconfig | 4 -
drivers/watchdog/Makefile | 1 -
drivers/watchdog/mpc8xx_wdt.c | 169 -----------------------------------------
3 files changed, 0 insertions(+), 174 deletions(-)
delete mode 100644 drivers/watchdog/mpc8xx_wdt.c
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index a7a8285..ac54ad5 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -691,10 +691,6 @@ 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 73fd301..11defe0 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -101,7 +101,6 @@ 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 85b5734..0000000
--- a/drivers/watchdog/mpc8xx_wdt.c
+++ /dev/null
@@ -1,169 +0,0 @@
-/*
- * mpc8xx_wdt.c - MPC8xx watchdog userspace interface
- *
- * Author: Florian Schirmer <jolt@...box.org>
- *
- * 2002 (c) Florian Schirmer <jolt@...box.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 <asm/uaccess.h>
-#include <asm/io.h>
-#include <syslib/m8xx_wdt.h>
-
-static unsigned long wdt_opened;
-static int wdt_status;
-
-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)
- m8xx_wdt_reset();
-
- return len;
-}
-
-static int mpc8xx_wdt_ioctl(struct inode *inode, 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:
- m8xx_wdt_reset();
- wdt_status |= WDIOF_KEEPALIVEPING;
- break;
-
- case WDIOC_SETTIMEOUT:
- return -EOPNOTSUPP;
-
- case WDIOC_GETTIMEOUT:
- timeout = m8xx_wdt_get_timeout();
- 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,
- .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)
-{
- 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@...box.org>");
-MODULE_DESCRIPTION("MPC8xx watchdog driver");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
--
1.5.6.3
--
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