MIPS: eXcite: Remove platform.

The platform has never been fully merged 

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Thomas Koeller <thomas.koeller@baslerweb.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Wim Van Sebroeck <wim@iguana.be>
Cc: linux-kernel@vger.kernel.org
Cc: linux-mtd@lists.infradead.org
Acked-by: David Woodhouse <David.Woodhouse@intel.com>
Acked-by: Wim Van Sebroeck <wim@iguana.be>

1 files changed, 0 insertions, 419 deletions

diff --git a/drivers/watchdog/rm9k_wdt.c b/drivers/watchdog/rm9k_wdt.c
deleted file mode 100644
index bb66958b9433..000000000000
--- a/drivers/watchdog/rm9k_wdt.c
+++ /dev/null
@@ -1,419 +0,0 @@
-/*
- *  Watchdog implementation for GPI h/w found on PMC-Sierra RM9xxx
- *  chips.
- *
- *  Copyright (C) 2004 by Basler Vision Technologies AG
- *  Author: Thomas Koeller <thomas.koeller@baslerweb.com>
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; either version 2 of the License, or
- *  (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program; if not, write to the Free Software
- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include <linux/platform_device.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/interrupt.h>
-#include <linux/fs.h>
-#include <linux/reboot.h>
-#include <linux/notifier.h>
-#include <linux/miscdevice.h>
-#include <linux/watchdog.h>
-#include <linux/io.h>
-#include <linux/uaccess.h>
-#include <asm/atomic.h>
-#include <asm/processor.h>
-#include <asm/system.h>
-#include <asm/rm9k-ocd.h>
-
-#include <rm9k_wdt.h>
-
-
-#define CLOCK                  125000000
-#define MAX_TIMEOUT_SECONDS    32
-#define CPCCR                  0x0080
-#define CPGIG1SR               0x0044
-#define CPGIG1ER               0x0054
-
-
-/* Function prototypes */
-static irqreturn_t wdt_gpi_irqhdl(int, void *);
-static void wdt_gpi_start(void);
-static void wdt_gpi_stop(void);
-static void wdt_gpi_set_timeout(unsigned int);
-static int wdt_gpi_open(struct inode *, struct file *);
-static int wdt_gpi_release(struct inode *, struct file *);
-static ssize_t wdt_gpi_write(struct file *, const char __user *, size_t,
-								loff_t *);
-static long wdt_gpi_ioctl(struct file *, unsigned int, unsigned long);
-static int wdt_gpi_notify(struct notifier_block *, unsigned long, void *);
-static const struct resource *wdt_gpi_get_resource(struct platform_device *,
-						const char *, unsigned int);
-static int __init wdt_gpi_probe(struct platform_device *);
-static int __exit wdt_gpi_remove(struct platform_device *);
-
-
-static const char wdt_gpi_name[] = "wdt_gpi";
-static atomic_t opencnt;
-static int expect_close;
-static int locked;
-
-
-/* These are set from device resources */
-static void __iomem *wd_regs;
-static unsigned int wd_irq, wd_ctr;
-
-
-/* Module arguments */
-static int timeout = MAX_TIMEOUT_SECONDS;
-module_param(timeout, int, 0444);
-MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds");
-
-static unsigned long resetaddr = 0xbffdc200;
-module_param(resetaddr, ulong, 0444);
-MODULE_PARM_DESC(resetaddr, "Address to write to to force a reset");
-
-static unsigned long flagaddr = 0xbffdc104;
-module_param(flagaddr, ulong, 0444);
-MODULE_PARM_DESC(flagaddr, "Address to write to boot flags to");
-
-static int powercycle;
-module_param(powercycle, bool, 0444);
-MODULE_PARM_DESC(powercycle, "Cycle power if watchdog expires");
-
-static int nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, bool, 0444);
-MODULE_PARM_DESC(nowayout, "Watchdog cannot be disabled once started");
-
-
-/* Kernel interfaces */
-static const struct file_operations fops = {
-	.owner		= THIS_MODULE,
-	.open		= wdt_gpi_open,
-	.release	= wdt_gpi_release,
-	.write		= wdt_gpi_write,
-	.unlocked_ioctl	= wdt_gpi_ioctl,
-};
-
-static struct miscdevice miscdev = {
-	.minor		= WATCHDOG_MINOR,
-	.name		= wdt_gpi_name,
-	.fops		= &fops,
-};
-
-static struct notifier_block wdt_gpi_shutdown = {
-	.notifier_call	= wdt_gpi_notify,
-};
-
-
-/* Interrupt handler */
-static irqreturn_t wdt_gpi_irqhdl(int irq, void *ctxt)
-{
-	if (!unlikely(__raw_readl(wd_regs + 0x0008) & 0x1))
-		return IRQ_NONE;
-	__raw_writel(0x1, wd_regs + 0x0008);
-
-
-	printk(KERN_CRIT "%s: watchdog expired - resetting system\n",
-		wdt_gpi_name);
-
-	*(volatile char *) flagaddr |= 0x01;
-	*(volatile char *) resetaddr = powercycle ? 0x01 : 0x2;
-	iob();
-	while (1)
-		cpu_relax();
-}
-
-
-/* Watchdog functions */
-static void wdt_gpi_start(void)
-{
-	u32 reg;
-
-	lock_titan_regs();
-	reg = titan_readl(CPGIG1ER);
-	titan_writel(reg | (0x100 << wd_ctr), CPGIG1ER);
-	iob();
-	unlock_titan_regs();
-}
-
-static void wdt_gpi_stop(void)
-{
-	u32 reg;
-
-	lock_titan_regs();
-	reg = titan_readl(CPCCR) & ~(0xf << (wd_ctr * 4));
-	titan_writel(reg, CPCCR);
-	reg = titan_readl(CPGIG1ER);
-	titan_writel(reg & ~(0x100 << wd_ctr), CPGIG1ER);
-	iob();
-	unlock_titan_regs();
-}
-
-static void wdt_gpi_set_timeout(unsigned int to)
-{
-	u32 reg;
-	const u32 wdval = (to * CLOCK) & ~0x0000000f;
-
-	lock_titan_regs();
-	reg = titan_readl(CPCCR) & ~(0xf << (wd_ctr * 4));
-	titan_writel(reg, CPCCR);
-	wmb();
-	__raw_writel(wdval, wd_regs + 0x0000);
-	wmb();
-	titan_writel(reg | (0x2 << (wd_ctr * 4)), CPCCR);
-	wmb();
-	titan_writel(reg | (0x5 << (wd_ctr * 4)), CPCCR);
-	iob();
-	unlock_titan_regs();
-}
-
-
-/* /dev/watchdog operations */
-static int wdt_gpi_open(struct inode *inode, struct file *file)
-{
-	int res;
-
-	if (unlikely(atomic_dec_if_positive(&opencnt) < 0))
-		return -EBUSY;
-
-	expect_close = 0;
-	if (locked) {
-		module_put(THIS_MODULE);
-		free_irq(wd_irq, &miscdev);
-		locked = 0;
-	}
-
-	res = request_irq(wd_irq, wdt_gpi_irqhdl, IRQF_SHARED | IRQF_DISABLED,
-			  wdt_gpi_name, &miscdev);
-	if (unlikely(res))
-		return res;
-
-	wdt_gpi_set_timeout(timeout);
-	wdt_gpi_start();
-
-	printk(KERN_INFO "%s: watchdog started, timeout = %u seconds\n",
-		wdt_gpi_name, timeout);
-	return nonseekable_open(inode, file);
-}
-
-static int wdt_gpi_release(struct inode *inode, struct file *file)
-{
-	if (nowayout) {
-		printk(KERN_INFO "%s: no way out - watchdog left running\n",
-			wdt_gpi_name);
-		__module_get(THIS_MODULE);
-		locked = 1;
-	} else {
-		if (expect_close) {
-			wdt_gpi_stop();
-			free_irq(wd_irq, &miscdev);
-			printk(KERN_INFO "%s: watchdog stopped\n",
-							wdt_gpi_name);
-		} else {
-			printk(KERN_CRIT "%s: unexpected close() -"
-				" watchdog left running\n",
-				wdt_gpi_name);
-			wdt_gpi_set_timeout(timeout);
-			__module_get(THIS_MODULE);
-			locked = 1;
-		}
-	}
-
-	atomic_inc(&opencnt);
-	return 0;
-}
-
-static ssize_t wdt_gpi_write(struct file *f, const char __user *d, size_t s,
-								loff_t *o)
-{
-	char val;
-
-	wdt_gpi_set_timeout(timeout);
-	expect_close = (s > 0) && !get_user(val, d) && (val == 'V');
-	return s ? 1 : 0;
-}
-
-static long wdt_gpi_ioctl(struct file *f, unsigned int cmd, unsigned long arg)
-{
-	long res = -ENOTTY;
-	const long size = _IOC_SIZE(cmd);
-	int stat;
-	void __user *argp = (void __user *)arg;
-	static struct watchdog_info wdinfo = {
-		.identity               = "RM9xxx/GPI watchdog",
-		.firmware_version       = 0,
-		.options                = WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING
-	};
-
-	if (unlikely(_IOC_TYPE(cmd) != WATCHDOG_IOCTL_BASE))
-		return -ENOTTY;
-
-	if ((_IOC_DIR(cmd) & _IOC_READ)
-	    && !access_ok(VERIFY_WRITE, arg, size))
-		return -EFAULT;
-
-	if ((_IOC_DIR(cmd) & _IOC_WRITE)
-	    && !access_ok(VERIFY_READ, arg, size))
-		return -EFAULT;
-
-	expect_close = 0;
-
-	switch (cmd) {
-	case WDIOC_GETSUPPORT:
-		wdinfo.options = nowayout ?
-			WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING :
-			WDIOF_SETTIMEOUT | WDIOF_KEEPALIVEPING |
-			WDIOF_MAGICCLOSE;
-		res = __copy_to_user(argp, &wdinfo, size) ?  -EFAULT : size;
-		break;
-
-	case WDIOC_GETSTATUS:
-		break;
-
-	case WDIOC_GETBOOTSTATUS:
-		stat = (*(volatile char *) flagaddr & 0x01)
-			? WDIOF_CARDRESET : 0;
-		res = __copy_to_user(argp, &stat, size) ?
-			-EFAULT : size;
-		break;
-
-	case WDIOC_SETOPTIONS:
-		break;
-
-	case WDIOC_KEEPALIVE:
-		wdt_gpi_set_timeout(timeout);
-		res = size;
-		break;
-
-	case WDIOC_SETTIMEOUT:
-		{
-			int val;
-			if (unlikely(__copy_from_user(&val, argp, size))) {
-				res = -EFAULT;
-				break;
-			}
-
-			if (val > MAX_TIMEOUT_SECONDS)
-				val = MAX_TIMEOUT_SECONDS;
-			timeout = val;
-			wdt_gpi_set_timeout(val);
-			res = size;
-			printk(KERN_INFO "%s: timeout set to %u seconds\n",
-				wdt_gpi_name, timeout);
-		}
-		break;
-
-	case WDIOC_GETTIMEOUT:
-		res = __copy_to_user(argp, &timeout, size) ?
-			-EFAULT : size;
-		break;
-	}
-
-	return res;
-}
-
-
-/* Shutdown notifier */
-static int wdt_gpi_notify(struct notifier_block *this, unsigned long code,
-			  void *unused)
-{
-	if (code == SYS_DOWN || code == SYS_HALT)
-		wdt_gpi_stop();
-
-	return NOTIFY_DONE;
-}
-
-
-/* Init & exit procedures */
-static const struct resource *wdt_gpi_get_resource(struct platform_device *pdv,
-					const char *name, unsigned int type)
-{
-	char buf[80];
-	if (snprintf(buf, sizeof(buf), "%s_0", name) >= sizeof(buf))
-		return NULL;
-	return platform_get_resource_byname(pdv, type, buf);
-}
-
-/* No hotplugging on the platform bus - use __devinit */
-static int __devinit wdt_gpi_probe(struct platform_device *pdv)
-{
-	int res;
-	const struct resource
-		* const rr = wdt_gpi_get_resource(pdv, WDT_RESOURCE_REGS,
-						  IORESOURCE_MEM),
-		* const ri = wdt_gpi_get_resource(pdv, WDT_RESOURCE_IRQ,
-						  IORESOURCE_IRQ),
-		* const rc = wdt_gpi_get_resource(pdv, WDT_RESOURCE_COUNTER,
-						  0);
-
-	if (unlikely(!rr || !ri || !rc))
-		return -ENXIO;
-
-	wd_regs = ioremap_nocache(rr->start, rr->end + 1 - rr->start);
-	if (unlikely(!wd_regs))
-		return -ENOMEM;
-	wd_irq = ri->start;
-	wd_ctr = rc->start;
-	res = misc_register(&miscdev);
-	if (res)
-		iounmap(wd_regs);
-	else
-		register_reboot_notifier(&wdt_gpi_shutdown);
-	return res;
-}
-
-static int __devexit wdt_gpi_remove(struct platform_device *dev)
-{
-	int res;
-
-	unregister_reboot_notifier(&wdt_gpi_shutdown);
-	res = misc_deregister(&miscdev);
-	iounmap(wd_regs);
-	wd_regs = NULL;
-	return res;
-}
-
-
-/* Device driver init & exit */
-static struct platform_driver wgt_gpi_driver = {
-	.driver = {
-		.name		= wdt_gpi_name,
-		.owner		= THIS_MODULE,
-	},
-	.probe		= wdt_gpi_probe,
-	.remove		= __devexit_p(wdt_gpi_remove),
-};
-
-static int __init wdt_gpi_init_module(void)
-{
-	atomic_set(&opencnt, 1);
-	if (timeout > MAX_TIMEOUT_SECONDS)
-		timeout = MAX_TIMEOUT_SECONDS;
-	return platform_driver_register(&wdt_gpi_driver);
-}
-
-static void __exit wdt_gpi_cleanup_module(void)
-{
-	platform_driver_unregister(&wdt_gpi_driver);
-}
-
-module_init(wdt_gpi_init_module);
-module_exit(wdt_gpi_cleanup_module);
-
-MODULE_AUTHOR("Thomas Koeller <thomas.koeller@baslerweb.com>");
-MODULE_DESCRIPTION("Basler eXcite watchdog driver for gpi devices");
-MODULE_VERSION("0.1");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-