brcm2708: remove linux 3.18 support

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 46870

1 files changed, 0 insertions, 423 deletions

diff --git a/target/linux/brcm2708/patches-3.18/0005-bcm2708-watchdog-driver.patch b/target/linux/brcm2708/patches-3.18/0005-bcm2708-watchdog-driver.patch
deleted file mode 100644
index d871c9852c..0000000000
--- a/target/linux/brcm2708/patches-3.18/0005-bcm2708-watchdog-driver.patch
+++ /dev/null
@@ -1,423 +0,0 @@
-From 633194396e40f919974dd8b81e97ddfea463b733 Mon Sep 17 00:00:00 2001
-From: popcornmix <popcornmix@gmail.com>
-Date: Wed, 1 May 2013 19:54:32 +0100
-Subject: [PATCH 005/114] bcm2708 watchdog driver
-
-Signed-off-by: popcornmix <popcornmix@gmail.com>
----
- drivers/watchdog/Kconfig        |   6 +
- drivers/watchdog/Makefile       |   1 +
- drivers/watchdog/bcm2708_wdog.c | 382 ++++++++++++++++++++++++++++++++++++++++
- 3 files changed, 389 insertions(+)
- create mode 100644 drivers/watchdog/bcm2708_wdog.c
-
---- a/drivers/watchdog/Kconfig
-+++ b/drivers/watchdog/Kconfig
-@@ -452,6 +452,12 @@ config RETU_WATCHDOG
- 	  To compile this driver as a module, choose M here: the
- 	  module will be called retu_wdt.
- 
-+config BCM2708_WDT
-+	tristate "BCM2708 Watchdog"
-+	depends on ARCH_BCM2708
-+	help
-+	  Enables BCM2708 watchdog support.
-+
- config MOXART_WDT
- 	tristate "MOXART watchdog"
- 	depends on ARCH_MOXART
---- a/drivers/watchdog/Makefile
-+++ b/drivers/watchdog/Makefile
-@@ -56,6 +56,7 @@ obj-$(CONFIG_TS72XX_WATCHDOG) += ts72xx_
- obj-$(CONFIG_IMX2_WDT) += imx2_wdt.o
- obj-$(CONFIG_UX500_WATCHDOG) += ux500_wdt.o
- obj-$(CONFIG_RETU_WATCHDOG) += retu_wdt.o
-+obj-$(CONFIG_BCM2708_WDT) += bcm2708_wdog.o
- obj-$(CONFIG_BCM2835_WDT) += bcm2835_wdt.o
- obj-$(CONFIG_MOXART_WDT) += moxart_wdt.o
- obj-$(CONFIG_SIRFSOC_WATCHDOG) += sirfsoc_wdt.o
---- /dev/null
-+++ b/drivers/watchdog/bcm2708_wdog.c
-@@ -0,0 +1,382 @@
-+/*
-+ *	Broadcom BCM2708 watchdog driver.
-+ *
-+ *	(c) Copyright 2010 Broadcom Europe Ltd
-+ *
-+ *	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.
-+ *
-+ *      BCM2708 watchdog driver. Loosely based on wdt driver.
-+ */
-+
-+#include <linux/interrupt.h>
-+#include <linux/module.h>
-+#include <linux/moduleparam.h>
-+#include <linux/types.h>
-+#include <linux/miscdevice.h>
-+#include <linux/watchdog.h>
-+#include <linux/fs.h>
-+#include <linux/ioport.h>
-+#include <linux/notifier.h>
-+#include <linux/reboot.h>
-+#include <linux/init.h>
-+#include <linux/io.h>
-+#include <linux/uaccess.h>
-+#include <mach/platform.h>
-+
-+#define SECS_TO_WDOG_TICKS(x) ((x) << 16)
-+#define WDOG_TICKS_TO_SECS(x) ((x) >> 16)
-+
-+static unsigned long wdog_is_open;
-+static uint32_t wdog_ticks;	       /* Ticks to load into wdog timer */
-+static char expect_close;
-+
-+/*
-+ *	Module parameters
-+ */
-+
-+#define WD_TIMO 10		       /* Default heartbeat = 60 seconds */
-+static int heartbeat = WD_TIMO;	       /* Heartbeat in seconds */
-+
-+module_param(heartbeat, int, 0);
-+MODULE_PARM_DESC(heartbeat,
-+	"Watchdog heartbeat in seconds. (0 < heartbeat < 65536, default="
-+				__MODULE_STRING(WD_TIMO) ")");
-+
-+static int nowayout = WATCHDOG_NOWAYOUT;
-+module_param(nowayout, int, 0);
-+MODULE_PARM_DESC(nowayout,
-+	"Watchdog cannot be stopped once started (default="
-+				__MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
-+
-+static DEFINE_SPINLOCK(wdog_lock);
-+
-+/**
-+ *	Start the watchdog driver.
-+ */
-+
-+static int wdog_start(unsigned long timeout)
-+{
-+	uint32_t cur;
-+	unsigned long flags;
-+	spin_lock_irqsave(&wdog_lock, flags);
-+
-+	/* enable the watchdog */
-+	iowrite32(PM_PASSWORD | (timeout & PM_WDOG_TIME_SET),
-+		  __io_address(PM_WDOG));
-+	cur = ioread32(__io_address(PM_RSTC));
-+	iowrite32(PM_PASSWORD | (cur & PM_RSTC_WRCFG_CLR) |
-+		  PM_RSTC_WRCFG_FULL_RESET, __io_address(PM_RSTC));
-+
-+	spin_unlock_irqrestore(&wdog_lock, flags);
-+	return 0;
-+}
-+
-+/**
-+ *	Stop the watchdog driver.
-+ */
-+
-+static int wdog_stop(void)
-+{
-+	iowrite32(PM_PASSWORD | PM_RSTC_RESET, __io_address(PM_RSTC));
-+	printk(KERN_INFO "watchdog stopped\n");
-+	return 0;
-+}
-+
-+/**
-+ *	Reload counter one with the watchdog heartbeat. We don't bother
-+ *	reloading the cascade counter.
-+ */
-+
-+static void wdog_ping(void)
-+{
-+	wdog_start(wdog_ticks);
-+}
-+
-+/**
-+ *	@t:		the new heartbeat value that needs to be set.
-+ *
-+ *	Set a new heartbeat value for the watchdog device. If the heartbeat
-+ *	value is incorrect we keep the old value and return -EINVAL. If
-+ *	successful we return 0.
-+ */
-+
-+static int wdog_set_heartbeat(int t)
-+{
-+	if (t < 1 || t > WDOG_TICKS_TO_SECS(PM_WDOG_TIME_SET))
-+		return -EINVAL;
-+
-+	heartbeat = t;
-+	wdog_ticks = SECS_TO_WDOG_TICKS(t);
-+	return 0;
-+}
-+
-+/**
-+ *	@file: file handle to the watchdog
-+ *	@buf: buffer to write (unused as data does not matter here
-+ *	@count: count of bytes
-+ *	@ppos: pointer to the position to write. No seeks allowed
-+ *
-+ *	A write to a watchdog device is defined as a keepalive signal.
-+ *
-+ *      if 'nowayout' is set then normally a close() is ignored. But
-+ *      if you write 'V' first then the close() will stop the timer.
-+ */
-+
-+static ssize_t wdog_write(struct file *file, const char __user *buf,
-+						size_t count, loff_t *ppos)
-+{
-+	if (count) {
-+		if (!nowayout) {
-+			size_t i;
-+
-+			/* In case it was set long ago */
-+			expect_close = 0;
-+
-+			for (i = 0; i != count; i++) {
-+				char c;
-+				if (get_user(c, buf + i))
-+					return -EFAULT;
-+				if (c == 'V')
-+					expect_close = 42;
-+			}
-+		}
-+		wdog_ping();
-+	}
-+	return count;
-+}
-+
-+static int wdog_get_status(void)
-+{
-+	unsigned long flags;
-+	int status = 0;
-+	spin_lock_irqsave(&wdog_lock, flags);
-+	/* FIXME: readback reset reason */
-+	spin_unlock_irqrestore(&wdog_lock, flags);
-+	return status;
-+}
-+
-+static uint32_t wdog_get_remaining(void)
-+{
-+	uint32_t ret = ioread32(__io_address(PM_WDOG));
-+	return ret & PM_WDOG_TIME_SET;
-+}
-+
-+/**
-+ *	@file: file handle to the device
-+ *	@cmd: watchdog command
-+ *	@arg: argument pointer
-+ *
-+ *	The watchdog API defines a common set of functions for all watchdogs
-+ *	according to their available features. We only actually usefully support
-+ *	querying capabilities and current status.
-+ */
-+
-+static long wdog_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
-+{
-+	void __user *argp = (void __user *)arg;
-+	int __user *p = argp;
-+	int new_heartbeat;
-+	int status;
-+	int options;
-+	uint32_t remaining;
-+
-+	struct watchdog_info ident = {
-+		.options =		WDIOF_SETTIMEOUT|
-+					WDIOF_MAGICCLOSE|
-+					WDIOF_KEEPALIVEPING,
-+		.firmware_version =	1,
-+		.identity =		"BCM2708",
-+	};
-+
-+	switch (cmd) {
-+	case WDIOC_GETSUPPORT:
-+		return copy_to_user(argp, &ident, sizeof(ident)) ? -EFAULT : 0;
-+	case WDIOC_GETSTATUS:
-+		status = wdog_get_status();
-+		return put_user(status, p);
-+	case WDIOC_GETBOOTSTATUS:
-+		return put_user(0, p);
-+	case WDIOC_KEEPALIVE:
-+		wdog_ping();
-+		return 0;
-+	case WDIOC_SETTIMEOUT:
-+		if (get_user(new_heartbeat, p))
-+			return -EFAULT;
-+		if (wdog_set_heartbeat(new_heartbeat))
-+			return -EINVAL;
-+		wdog_ping();
-+		/* Fall */
-+	case WDIOC_GETTIMEOUT:
-+		return put_user(heartbeat, p);
-+	case WDIOC_GETTIMELEFT:
-+		remaining = WDOG_TICKS_TO_SECS(wdog_get_remaining());
-+		return put_user(remaining, p);
-+	case WDIOC_SETOPTIONS:
-+		if (get_user(options, p))
-+			return -EFAULT;
-+		if (options & WDIOS_DISABLECARD)
-+			wdog_stop();
-+		if (options & WDIOS_ENABLECARD)
-+			wdog_start(wdog_ticks);
-+		return 0;
-+	default:
-+		return -ENOTTY;
-+	}
-+}
-+
-+/**
-+ *	@inode: inode of device
-+ *	@file: file handle to device
-+ *
-+ *	The watchdog device has been opened. The watchdog device is single
-+ *	open and on opening we load the counters.
-+ */
-+
-+static int wdog_open(struct inode *inode, struct file *file)
-+{
-+	if (test_and_set_bit(0, &wdog_is_open))
-+		return -EBUSY;
-+	/*
-+	 *	Activate
-+	 */
-+	wdog_start(wdog_ticks);
-+	return nonseekable_open(inode, file);
-+}
-+
-+/**
-+ *	@inode: inode to board
-+ *	@file: file handle to board
-+ *
-+ *	The watchdog has a configurable API. There is a religious dispute
-+ *	between people who want their watchdog to be able to shut down and
-+ *	those who want to be sure if the watchdog manager dies the machine
-+ *	reboots. In the former case we disable the counters, in the latter
-+ *	case you have to open it again very soon.
-+ */
-+
-+static int wdog_release(struct inode *inode, struct file *file)
-+{
-+	if (expect_close == 42) {
-+		wdog_stop();
-+	} else {
-+		printk(KERN_CRIT
-+		 "wdt: WDT device closed unexpectedly.  WDT will not stop!\n");
-+		wdog_ping();
-+	}
-+	clear_bit(0, &wdog_is_open);
-+	expect_close = 0;
-+	return 0;
-+}
-+
-+/**
-+ *	@this: our notifier block
-+ *	@code: the event being reported
-+ *	@unused: unused
-+ *
-+ *	Our notifier is called on system shutdowns. Turn the watchdog
-+ *	off so that it does not fire during the next reboot.
-+ */
-+
-+static int wdog_notify_sys(struct notifier_block *this, unsigned long code,
-+	void *unused)
-+{
-+	if (code == SYS_DOWN || code == SYS_HALT)
-+		wdog_stop();
-+	return NOTIFY_DONE;
-+}
-+
-+/*
-+ *	Kernel Interfaces
-+ */
-+
-+
-+static const struct file_operations wdog_fops = {
-+	.owner		= THIS_MODULE,
-+	.llseek		= no_llseek,
-+	.write		= wdog_write,
-+	.unlocked_ioctl	= wdog_ioctl,
-+	.open		= wdog_open,
-+	.release	= wdog_release,
-+};
-+
-+static struct miscdevice wdog_miscdev = {
-+	.minor	= WATCHDOG_MINOR,
-+	.name	= "watchdog",
-+	.fops	= &wdog_fops,
-+};
-+
-+/*
-+ *	The WDT card needs to learn about soft shutdowns in order to
-+ *	turn the timebomb registers off.
-+ */
-+
-+static struct notifier_block wdog_notifier = {
-+	.notifier_call = wdog_notify_sys,
-+};
-+
-+/**
-+ *	cleanup_module:
-+ *
-+ *	Unload the watchdog. You cannot do this with any file handles open.
-+ *	If your watchdog is set to continue ticking on close and you unload
-+ *	it, well it keeps ticking. We won't get the interrupt but the board
-+ *	will not touch PC memory so all is fine. You just have to load a new
-+ *	module in 60 seconds or reboot.
-+ */
-+
-+static void __exit wdog_exit(void)
-+{
-+	misc_deregister(&wdog_miscdev);
-+	unregister_reboot_notifier(&wdog_notifier);
-+}
-+
-+static int __init wdog_init(void)
-+{
-+	int ret;
-+
-+	/* Check that the heartbeat value is within it's range;
-+	   if not reset to the default */
-+	if (wdog_set_heartbeat(heartbeat)) {
-+		wdog_set_heartbeat(WD_TIMO);
-+		printk(KERN_INFO "bcm2708_wdog: heartbeat value must be "
-+			"0 < heartbeat < %d, using %d\n",
-+				WDOG_TICKS_TO_SECS(PM_WDOG_TIME_SET),
-+				WD_TIMO);
-+	}
-+
-+	ret = register_reboot_notifier(&wdog_notifier);
-+	if (ret) {
-+		printk(KERN_ERR
-+		      "wdt: cannot register reboot notifier (err=%d)\n", ret);
-+		goto out_reboot;
-+	}
-+
-+	ret = misc_register(&wdog_miscdev);
-+	if (ret) {
-+		printk(KERN_ERR
-+			"wdt: cannot register miscdev on minor=%d (err=%d)\n",
-+							WATCHDOG_MINOR, ret);
-+		goto out_misc;
-+	}
-+
-+	printk(KERN_INFO "bcm2708 watchdog, heartbeat=%d sec (nowayout=%d)\n",
-+		heartbeat, nowayout);
-+	return 0;
-+
-+out_misc:
-+	unregister_reboot_notifier(&wdog_notifier);
-+out_reboot:
-+	return ret;
-+}
-+
-+module_init(wdog_init);
-+module_exit(wdog_exit);
-+
-+MODULE_AUTHOR("Luke Diamand");
-+MODULE_DESCRIPTION("Driver for BCM2708 watchdog");
-+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
-+MODULE_ALIAS_MISCDEV(TEMP_MINOR);
-+MODULE_LICENSE("GPL");