Hi Andrew,
please do a
bk pull http://linux-watchdog.bkbits.net/linux-2.6-watchdog-mm
This will update the following files:
drivers/char/watchdog/Kconfig | 14
drivers/char/watchdog/Makefile | 86 +++---
drivers/char/watchdog/i6300esb.c | 508 ++++++++++++++++++++++++++++++++++++
drivers/char/watchdog/i6300esb.h | 62 ++++
drivers/char/watchdog/i8xx_tco.c | 1
drivers/char/watchdog/ixp2000_wdt.c | 2
drivers/char/watchdog/ixp4xx_wdt.c | 2
drivers/char/watchdog/mv64x60_wdt.c | 252 +++++++++++++++++
drivers/char/watchdog/pcwd_pci.c | 6
drivers/char/watchdog/pcwd_usb.c | 6
drivers/char/watchdog/s3c2410_wdt.c | 95 ++++--
drivers/char/watchdog/sa1100_wdt.c | 2
drivers/char/watchdog/scx200_wdt.c | 2
include/asm-ppc/mv64x60.h | 8
14 files changed, 969 insertions(+), 77 deletions(-)
through these ChangeSets:
<[EMAIL PROTECTED]> (05/03/15 1.2187)
[WATCHDOG] pcwd_usb: usb_control_msg-timeout-patch
set timeout in usb_control_msg to USB_COMMAND_TIMEOUT instead of a
full second.
<[EMAIL PROTECTED]> (05/03/15 1.2188)
[WATCHDOG] s3c2410-divide-patch
The s3c2410 watchdog driver has an incorrect /2
in the timer calculation, fix this problem
Signed-off-by: Ben Dooks <[EMAIL PROTECTED]>
<[EMAIL PROTECTED]> (05/03/15 1.2189)
[WATCHDOG] pcwd_pci-register-driver-patch
convert from pci_module_init to pci_register_driver
Signed-off-by: Christophe Lucas <[EMAIL PROTECTED]>
Signed-off-by: Domen Puncer <[EMAIL PROTECTED]>
Signed-off-by: Wim Van Sebroeck <[EMAIL PROTECTED]>
<[EMAIL PROTECTED]> (05/03/15 1.2190)
[WATCHDOG] Makefile-patch
The comment at the top of the Makefile suggests that the current
ordering is incorrect.
Signed-off-by: Dave Jones <[EMAIL PROTECTED]>
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: Wim Van Sebroeck <[EMAIL PROTECTED]>
<[EMAIL PROTECTED]> (05/03/15 1.2191)
[WATCHDOG] correct sysfs name for watchdog devices
While looking for possible candidates for our udev.rules package,
I found a few odd ->name properties. /dev/watchdog has minor 130
according to devices.txt. Since all watchdog drivers use the
misc_register() call, they will end up in /sys/class/misc/$foo.
udev may create the /dev/watchdog node if the driver is loaded.
I dont have such a device, so I cant test it.
The drivers below provide names with spaces and even with / in it.
Not a big deal, but apps may expect /dev/watchdog.
Signed-off-by: Olaf Hering <[EMAIL PROTECTED]>
Signed-off-by: Wim Van Sebroeck <[EMAIL PROTECTED]>
<[EMAIL PROTECTED]> (05/03/15 1.2192)
[WATCHDOG] mv64x60_wdt.patch
Add mv64x60 (Marvell Discovery) watchdog support.
Signed-off-by: James Chapman <[EMAIL PROTECTED]>
<[EMAIL PROTECTED]> (05/03/15 1.2193)
[WATCHDOG] i6300esb.patch
From: David Hardeman <[EMAIL PROTECTED]>
I wrote earlier to the list[1] asking for a driver for the watchdog
included in the 6300ESB chipset. I got a 2.4 driver via private email
from Ross Biro which I've changed into what I hope resembles a 2.6
driver (which was done by looking a lot at the watchdog drivers
already in the 2.6 tree).
I've attached the result, and I'm hoping to get some feedback on the
coding as a first step. I can't actually test it on the hardware
right now as I won't have physical access until April. So my own tests
have been limited to "compiles-without-warnings" and
"can-be-insmodded-in-other-machine-without-oops".
[1] http://marc.theaimsgroup.com/?l=linux-kernel&m=110711079825794&w=2
[2] http://marc.theaimsgroup.com/?l=linux-kernel&m=110711973917746&w=2
Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
<[EMAIL PROTECTED]> (05/03/15 1.2194)
From: David Hardeman <[EMAIL PROTECTED]>
Add support for the intel 6300ESB chipset.
<[EMAIL PROTECTED]> (05/03/15 1.2195)
[WATCHDOG] s3c2410 watchdog power management
Patch from Dimitry Andric <[EMAIL PROTECTED]>, updated
by Ben Dooks <[EMAIL PROTECTED]>. Patch is against 2.6.11-mm2
Add power management support to the s3c2410 watchdog, so that
it is shut-down over suspend, and re-initialised on resume.
Also add Dimitry to the list of authors.
Signed-off-by: Dimitry Andric <[EMAIL PROTECTED]>
Signed-off-by: Ben Dooks <[EMAIL PROTECTED]>
<[EMAIL PROTECTED]> (05/03/15 1.2196)
[WATCHDOG] s3c2410 watchdog - replace reboot notifier
Patch from Dimitry Andric <[EMAIL PROTECTED]>
Change to using platfrom driver's .shutdown method instead
of an reboot notifier
Signed-off-by: Dimitry Andric <[EMAIL PROTECTED]>
Signed-off-by: Ben Dooks <[EMAIL PROTECTED]>
<[EMAIL PROTECTED]> (05/03/15 1.2197)
[WATCHDOG] Makefile-probe_order-patch
Re-arrange Makefile according to what we want to probe first.
The ChangeSets can also be looked at on:
http://linux-watchdog.bkbits.net:8080/linux-2.6-watchdog-mm
For completeness, I added the patches below.
Greetings,
Wim.
================================================================================
diff -Nru a/drivers/char/watchdog/pcwd_usb.c b/drivers/char/watchdog/pcwd_usb.c
--- a/drivers/char/watchdog/pcwd_usb.c 2005-03-15 22:44:05 +01:00
+++ b/drivers/char/watchdog/pcwd_usb.c 2005-03-15 22:44:05 +01:00
@@ -56,8 +56,8 @@
/* Module and Version Information */
-#define DRIVER_VERSION "1.00"
-#define DRIVER_DATE "12 Jun 2004"
+#define DRIVER_VERSION "1.01"
+#define DRIVER_DATE "15 Mar 2005"
#define DRIVER_AUTHOR "Wim Van Sebroeck <[EMAIL PROTECTED]>"
#define DRIVER_DESC "Berkshire USB-PC Watchdog driver"
#define DRIVER_LICENSE "GPL"
@@ -227,7 +227,7 @@
if (usb_control_msg(usb_pcwd->udev, usb_sndctrlpipe(usb_pcwd->udev, 0),
HID_REQ_SET_REPORT, HID_DT_REPORT,
0x0200, usb_pcwd->interface_number, buf, sizeof(buf),
- 1000) != sizeof(buf)) {
+ USB_COMMAND_TIMEOUT) != sizeof(buf)) {
dbg("usb_pcwd_send_command: error in usb_control_msg for cmd
0x%x 0x%x 0x%x\n", cmd, *msb, *lsb);
}
/* wait till the usb card processed the command,
diff -Nru a/drivers/char/watchdog/s3c2410_wdt.c
b/drivers/char/watchdog/s3c2410_wdt.c
--- a/drivers/char/watchdog/s3c2410_wdt.c 2005-03-15 22:44:08 +01:00
+++ b/drivers/char/watchdog/s3c2410_wdt.c 2005-03-15 22:44:08 +01:00
@@ -27,6 +27,8 @@
* Fixed tmr_count / wdt_count confusion
* Added configurable debug
*
+ * 11-Jan-2004 BJD Fixed divide-by-2 in timeout code
+ *
* 10-Mar-2005 LCVR Changed S3C2410_VA to S3C24XX_VA
*/
@@ -165,11 +167,7 @@
if (timeout < 1)
return -EINVAL;
- /* I think someone must have missed a divide-by-2 in the 2410,
- * as a divisor of 128 gives half the calculated delay...
- */
-
- freq /= 128/2;
+ freq /= 128;
count = timeout * freq;
DBG("%s: count=%d, timeout=%d, freq=%d\n",
diff -Nru a/drivers/char/watchdog/pcwd_pci.c b/drivers/char/watchdog/pcwd_pci.c
--- a/drivers/char/watchdog/pcwd_pci.c 2005-03-15 22:44:11 +01:00
+++ b/drivers/char/watchdog/pcwd_pci.c 2005-03-15 22:44:11 +01:00
@@ -48,8 +48,8 @@
#include <asm/io.h>
/* Module and version information */
-#define WATCHDOG_VERSION "1.00"
-#define WATCHDOG_DATE "12 Jun 2004"
+#define WATCHDOG_VERSION "1.01"
+#define WATCHDOG_DATE "15 Mar 2005"
#define WATCHDOG_DRIVER_NAME "PCI-PC Watchdog"
#define WATCHDOG_NAME "pcwd_pci"
#define PFX WATCHDOG_NAME ": "
@@ -659,7 +659,7 @@
{
spin_lock_init (&pcipcwd_private.io_lock);
- return pci_module_init(&pcipcwd_driver);
+ return pci_register_driver(&pcipcwd_driver);
}
static void __exit pcipcwd_cleanup_module(void)
diff -Nru a/drivers/char/watchdog/Makefile b/drivers/char/watchdog/Makefile
--- a/drivers/char/watchdog/Makefile 2005-03-15 22:44:14 +01:00
+++ b/drivers/char/watchdog/Makefile 2005-03-15 22:44:14 +01:00
@@ -2,11 +2,6 @@
# Makefile for the WatchDog device drivers.
#
-# Only one watchdog can succeed. We probe the hardware watchdog
-# drivers first, then the softdog driver. This means if your hardware
-# watchdog dies or is 'borrowed' for some reason the software watchdog
-# still gives you some cover.
-
obj-$(CONFIG_PCWATCHDOG) += pcwd.o
obj-$(CONFIG_ACQUIRE_WDT) += acquirewdt.o
obj-$(CONFIG_ADVANTECH_WDT) += advantechwdt.o
@@ -24,7 +19,6 @@
obj-$(CONFIG_S3C2410_WATCHDOG) += s3c2410_wdt.o
obj-$(CONFIG_SA1100_WATCHDOG) += sa1100_wdt.o
obj-$(CONFIG_EUROTECH_WDT) += eurotechwdt.o
-obj-$(CONFIG_SOFT_WATCHDOG) += softdog.o
obj-$(CONFIG_W83877F_WDT) += w83877f_wdt.o
obj-$(CONFIG_W83627HF_WDT) += w83627hf_wdt.o
obj-$(CONFIG_SC520_WDT) += sc520_wdt.o
@@ -39,3 +33,10 @@
obj-$(CONFIG_IXP4XX_WATCHDOG) += ixp4xx_wdt.o
obj-$(CONFIG_IXP2000_WATCHDOG) += ixp2000_wdt.o
obj-$(CONFIG_8xx_WDT) += mpc8xx_wdt.o
+
+# Only one watchdog can succeed. We probe the hardware watchdog
+# drivers first, then the softdog driver. This means if your hardware
+# watchdog dies or is 'borrowed' for some reason the software watchdog
+# still gives you some cover.
+
+obj-$(CONFIG_SOFT_WATCHDOG) += softdog.o
diff -Nru a/drivers/char/watchdog/ixp2000_wdt.c
b/drivers/char/watchdog/ixp2000_wdt.c
--- a/drivers/char/watchdog/ixp2000_wdt.c 2005-03-15 22:44:17 +01:00
+++ b/drivers/char/watchdog/ixp2000_wdt.c 2005-03-15 22:44:17 +01:00
@@ -186,7 +186,7 @@
static struct miscdevice ixp2000_wdt_miscdev =
{
.minor = WATCHDOG_MINOR,
- .name = "IXP2000 Watchdog",
+ .name = "watchdog",
.fops = &ixp2000_wdt_fops,
};
diff -Nru a/drivers/char/watchdog/ixp4xx_wdt.c
b/drivers/char/watchdog/ixp4xx_wdt.c
--- a/drivers/char/watchdog/ixp4xx_wdt.c 2005-03-15 22:44:17 +01:00
+++ b/drivers/char/watchdog/ixp4xx_wdt.c 2005-03-15 22:44:17 +01:00
@@ -180,7 +180,7 @@
static struct miscdevice ixp4xx_wdt_miscdev =
{
.minor = WATCHDOG_MINOR,
- .name = "IXP4xx Watchdog",
+ .name = "watchdog",
.fops = &ixp4xx_wdt_fops,
};
diff -Nru a/drivers/char/watchdog/sa1100_wdt.c
b/drivers/char/watchdog/sa1100_wdt.c
--- a/drivers/char/watchdog/sa1100_wdt.c 2005-03-15 22:44:17 +01:00
+++ b/drivers/char/watchdog/sa1100_wdt.c 2005-03-15 22:44:17 +01:00
@@ -176,7 +176,7 @@
static struct miscdevice sa1100dog_miscdev =
{
.minor = WATCHDOG_MINOR,
- .name = "SA1100/PXA2xx watchdog",
+ .name = "watchdog",
.fops = &sa1100dog_fops,
};
diff -Nru a/drivers/char/watchdog/scx200_wdt.c
b/drivers/char/watchdog/scx200_wdt.c
--- a/drivers/char/watchdog/scx200_wdt.c 2005-03-15 22:44:17 +01:00
+++ b/drivers/char/watchdog/scx200_wdt.c 2005-03-15 22:44:17 +01:00
@@ -210,7 +210,7 @@
static struct miscdevice scx200_wdt_miscdev = {
.minor = WATCHDOG_MINOR,
- .name = NAME,
+ .name = "watchdog",
.fops = &scx200_wdt_fops,
};
diff -Nru a/drivers/char/watchdog/Kconfig b/drivers/char/watchdog/Kconfig
--- a/drivers/char/watchdog/Kconfig 2005-03-15 22:44:20 +01:00
+++ b/drivers/char/watchdog/Kconfig 2005-03-15 22:44:20 +01:00
@@ -346,6 +346,10 @@
tristate "MPC8xx Watchdog Timer"
depends on WATCHDOG && 8xx
+config MV64X60_WDT
+ tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
+ depends on WATCHDOG && MV64X60
+
# MIPS Architecture
config INDYDOG
diff -Nru a/drivers/char/watchdog/Makefile b/drivers/char/watchdog/Makefile
--- a/drivers/char/watchdog/Makefile 2005-03-15 22:44:20 +01:00
+++ b/drivers/char/watchdog/Makefile 2005-03-15 22:44:20 +01:00
@@ -33,6 +33,7 @@
obj-$(CONFIG_IXP4XX_WATCHDOG) += ixp4xx_wdt.o
obj-$(CONFIG_IXP2000_WATCHDOG) += ixp2000_wdt.o
obj-$(CONFIG_8xx_WDT) += mpc8xx_wdt.o
+obj-$(CONFIG_MV64X60_WDT) += mv64x60_wdt.o
# Only one watchdog can succeed. We probe the hardware watchdog
# drivers first, then the softdog driver. This means if your hardware
diff -Nru a/drivers/char/watchdog/mv64x60_wdt.c
b/drivers/char/watchdog/mv64x60_wdt.c
--- /dev/null Wed Dec 31 16:00:00 196900
+++ b/drivers/char/watchdog/mv64x60_wdt.c 2005-03-15 22:44:20 +01:00
@@ -0,0 +1,252 @@
+/*
+ * mv64x60_wdt.c - MV64X60 (Marvell Discovery) watchdog userspace interface
+ *
+ * Author: James Chapman <[EMAIL PROTECTED]>
+ *
+ * Platform-specific setup code should configure the dog to generate
+ * interrupt or reset as required. This code only enables/disables
+ * and services the watchdog.
+ *
+ * Derived from mpc8xx_wdt.c, with the following copyright.
+ *
+ * 2002 (c) Florian Schirmer <[EMAIL PROTECTED]> 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/config.h>
+#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/mv64x60.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+
+/* MV64x60 WDC (config) register access definitions */
+#define MV64x60_WDC_CTL1_MASK (3 << 24)
+#define MV64x60_WDC_CTL1(val) ((val & 3) << 24)
+#define MV64x60_WDC_CTL2_MASK (3 << 26)
+#define MV64x60_WDC_CTL2(val) ((val & 3) << 26)
+
+/* Flags bits */
+#define MV64x60_WDOG_FLAG_OPENED 0
+#define MV64x60_WDOG_FLAG_ENABLED 1
+
+static unsigned long wdt_flags;
+static int wdt_status;
+static void __iomem *mv64x60_regs;
+static int mv64x60_wdt_timeout;
+
+static void mv64x60_wdt_reg_write(u32 val)
+{
+ /* Allow write only to CTL1 / CTL2 fields, retaining values in
+ * other fields.
+ */
+ u32 data = readl(mv64x60_regs + MV64x60_WDT_WDC);
+ data &= ~(MV64x60_WDC_CTL1_MASK | MV64x60_WDC_CTL2_MASK);
+ data |= val;
+ writel(data, mv64x60_regs + MV64x60_WDT_WDC);
+}
+
+static void mv64x60_wdt_service(void)
+{
+ /* Write 01 followed by 10 to CTL2 */
+ mv64x60_wdt_reg_write(MV64x60_WDC_CTL2(0x01));
+ mv64x60_wdt_reg_write(MV64x60_WDC_CTL2(0x02));
+}
+
+static void mv64x60_wdt_handler_disable(void)
+{
+ if (test_and_clear_bit(MV64x60_WDOG_FLAG_ENABLED, &wdt_flags)) {
+ /* Write 01 followed by 10 to CTL1 */
+ mv64x60_wdt_reg_write(MV64x60_WDC_CTL1(0x01));
+ mv64x60_wdt_reg_write(MV64x60_WDC_CTL1(0x02));
+ printk(KERN_NOTICE "mv64x60_wdt: watchdog deactivated\n");
+ }
+}
+
+static void mv64x60_wdt_handler_enable(void)
+{
+ if (!test_and_set_bit(MV64x60_WDOG_FLAG_ENABLED, &wdt_flags)) {
+ /* Write 01 followed by 10 to CTL1 */
+ mv64x60_wdt_reg_write(MV64x60_WDC_CTL1(0x01));
+ mv64x60_wdt_reg_write(MV64x60_WDC_CTL1(0x02));
+ printk(KERN_NOTICE "mv64x60_wdt: watchdog activated\n");
+ }
+}
+
+static int mv64x60_wdt_open(struct inode *inode, struct file *file)
+{
+ if (test_and_set_bit(MV64x60_WDOG_FLAG_OPENED, &wdt_flags))
+ return -EBUSY;
+
+ mv64x60_wdt_service();
+ mv64x60_wdt_handler_enable();
+
+ return 0;
+}
+
+static int mv64x60_wdt_release(struct inode *inode, struct file *file)
+{
+ mv64x60_wdt_service();
+
+#if !defined(CONFIG_WATCHDOG_NOWAYOUT)
+ mv64x60_wdt_handler_disable();
+#endif
+
+ clear_bit(MV64x60_WDOG_FLAG_OPENED, &wdt_flags);
+
+ return 0;
+}
+
+static ssize_t mv64x60_wdt_write(struct file *file, const char *data,
+ size_t len, loff_t * ppos)
+{
+ if (*ppos != file->f_pos)
+ return -ESPIPE;
+
+ if (len)
+ mv64x60_wdt_service();
+
+ return len;
+}
+
+static int mv64x60_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 = "MV64x60 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:
+ mv64x60_wdt_service();
+ wdt_status |= WDIOF_KEEPALIVEPING;
+ break;
+
+ case WDIOC_SETTIMEOUT:
+ return -EOPNOTSUPP;
+
+ case WDIOC_GETTIMEOUT:
+ timeout = mv64x60_wdt_timeout * HZ;
+ if (put_user(timeout, (int *)arg))
+ return -EFAULT;
+ break;
+
+ default:
+ return -ENOIOCTLCMD;
+ }
+
+ return 0;
+}
+
+static struct file_operations mv64x60_wdt_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .write = mv64x60_wdt_write,
+ .ioctl = mv64x60_wdt_ioctl,
+ .open = mv64x60_wdt_open,
+ .release = mv64x60_wdt_release,
+};
+
+static struct miscdevice mv64x60_wdt_miscdev = {
+ .minor = WATCHDOG_MINOR,
+ .name = "watchdog",
+ .fops = &mv64x60_wdt_fops,
+};
+
+static int __devinit mv64x60_wdt_probe(struct device *dev)
+{
+ struct platform_device *pd = to_platform_device(dev);
+ struct mv64x60_wdt_pdata *pdata = pd->dev.platform_data;
+ int bus_clk = 133;
+
+ mv64x60_wdt_timeout = 10;
+ if (pdata) {
+ mv64x60_wdt_timeout = pdata->timeout;
+ bus_clk = pdata->bus_clk;
+ }
+
+ mv64x60_regs = mv64x60_get_bridge_vbase();
+
+ writel((mv64x60_wdt_timeout * (bus_clk * 1000000)) >> 8,
+ mv64x60_regs + MV64x60_WDT_WDC);
+
+ return misc_register(&mv64x60_wdt_miscdev);
+}
+
+static int __devexit mv64x60_wdt_remove(struct device *dev)
+{
+ misc_deregister(&mv64x60_wdt_miscdev);
+
+ mv64x60_wdt_service();
+ mv64x60_wdt_handler_disable();
+
+ return 0;
+}
+
+static struct device_driver mv64x60_wdt_driver = {
+ .name = MV64x60_WDT_NAME,
+ .bus = &platform_bus_type,
+ .probe = mv64x60_wdt_probe,
+ .remove = __devexit_p(mv64x60_wdt_remove),
+};
+
+static struct platform_device *mv64x60_wdt_dev;
+
+static int __init mv64x60_wdt_init(void)
+{
+ int ret;
+
+ printk(KERN_INFO "MV64x60 watchdog driver\n");
+
+ mv64x60_wdt_dev = platform_device_register_simple(MV64x60_WDT_NAME,
+ -1, NULL, 0);
+ if (IS_ERR(mv64x60_wdt_dev)) {
+ ret = PTR_ERR(mv64x60_wdt_dev);
+ goto out;
+ }
+
+ ret = driver_register(&mv64x60_wdt_driver);
+ out:
+ return ret;
+}
+
+static void __exit mv64x60_wdt_exit(void)
+{
+ driver_unregister(&mv64x60_wdt_driver);
+ platform_device_unregister(mv64x60_wdt_dev);
+}
+
+module_init(mv64x60_wdt_init);
+module_exit(mv64x60_wdt_exit);
+
+MODULE_AUTHOR("James Chapman <[EMAIL PROTECTED]>");
+MODULE_DESCRIPTION("MV64x60 watchdog driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff -Nru a/include/asm-ppc/mv64x60.h b/include/asm-ppc/mv64x60.h
--- a/include/asm-ppc/mv64x60.h 2005-03-15 22:44:20 +01:00
+++ b/include/asm-ppc/mv64x60.h 2005-03-15 22:44:20 +01:00
@@ -119,6 +119,14 @@
#define MV64x60_64BIT_WIN_COUNT 24
+/* Watchdog Platform Device, Driver Data */
+#define MV64x60_WDT_NAME "wdt"
+
+struct mv64x60_wdt_pdata {
+ int timeout; /* watchdog expiry in seconds, default 10 */
+ int bus_clk; /* bus clock in MHz, default 133 */
+};
+
/*
* Define a structure that's used to pass in config information to the
* core routines.
diff -Nru a/drivers/char/watchdog/Kconfig b/drivers/char/watchdog/Kconfig
--- a/drivers/char/watchdog/Kconfig 2005-03-15 22:44:23 +01:00
+++ b/drivers/char/watchdog/Kconfig 2005-03-15 22:44:23 +01:00
@@ -252,6 +252,16 @@
To compile this driver as a module, choose M here: the
module will be called i8xx_tco.
+config I6300ESB_WDT
+ tristate "Intel 6300ESB Timer/Watchdog"
+ depends on WATCHDOG && X86 && PCI
+ ---help---
+ Hardware driver for the watchdog timer built into the Intel
+ 6300ESB controller hub.
+
+ To compile this driver as a module, choose M here: the
+ module will be called i6300esb.
+
config SC1200_WDT
tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
depends on WATCHDOG && X86
diff -Nru a/drivers/char/watchdog/Makefile b/drivers/char/watchdog/Makefile
--- a/drivers/char/watchdog/Makefile 2005-03-15 22:44:23 +01:00
+++ b/drivers/char/watchdog/Makefile 2005-03-15 22:44:23 +01:00
@@ -14,6 +14,7 @@
obj-$(CONFIG_21285_WATCHDOG) += wdt285.o
obj-$(CONFIG_977_WATCHDOG) += wdt977.o
obj-$(CONFIG_I8XX_TCO) += i8xx_tco.o
+obj-$(CONFIG_I6300ESB_WDT) += i6300esb.o
obj-$(CONFIG_MACHZ_WDT) += machzwd.o
obj-$(CONFIG_SH_WDT) += shwdt.o
obj-$(CONFIG_S3C2410_WATCHDOG) += s3c2410_wdt.o
diff -Nru a/drivers/char/watchdog/i6300esb.c b/drivers/char/watchdog/i6300esb.c
--- /dev/null Wed Dec 31 16:00:00 196900
+++ b/drivers/char/watchdog/i6300esb.c 2005-03-15 22:44:23 +01:00
@@ -0,0 +1,508 @@
+/*
+ * i6300esb 0.03: Watchdog timer driver for Intel 6300ESB chipset
+ *
+ * (c) Copyright 2004 Google Inc.
+ *
+ * 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.
+ *
+ * based on i810-tco.c which is
+ *
+ * (c) Copyright 2000 kernel concepts <[EMAIL PROTECTED]>
+ * developed for
+ * Jentro AG, Haar/Munich (Germany)
+ *
+ * which is in turn based on softdog.c by Alan Cox <[EMAIL PROTECTED]>
+ *
+ * The timer is implemented in the following I/O controller hubs:
+ * (See the intel documentation on http://developer.intel.com.)
+ * 6300ESB chip : document number 300641-003
+ *
+ * 2004YYZZ Ross Biro
+ * Initial version 0.01
+ * 2004YYZZ Ross Biro
+ * Version 0.02
+ * 20050210 David Härdeman <[EMAIL PROTECTED]>
+ * Ported driver to kernel 2.6
+ */
+
+/*
+ * Includes, defines, variables, module parameters, ...
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/miscdevice.h>
+#include <linux/watchdog.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/ioport.h>
+
+#include <asm/uaccess.h>
+#include <asm/io.h>
+
+#include "i6300esb.h"
+
+/* Module and version information */
+#define ESB_VERSION "0.03"
+#define ESB_MODULE_NAME "i6300ESB timer"
+#define ESB_DRIVER_NAME ESB_MODULE_NAME ", v" ESB_VERSION
+#define PFX ESB_MODULE_NAME ": "
+
+/* internal variables */
+static void __iomem *BASEADDR;
+static spinlock_t esb_lock; /* Guards the hardware */
+static unsigned long timer_alive;
+static struct pci_dev *esb_pci;
+static unsigned short triggered; /* The status of the watchdog upon boot */
+static char esb_expect_close;
+
+/* module parameters */
+#define WATCHDOG_HEARTBEAT 30 /* 30 sec default heartbeat
(1<heartbeat<2*1023) */
+static int heartbeat = WATCHDOG_HEARTBEAT; /* in seconds */
+module_param(heartbeat, int, 0);
+MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (1<heartbeat<2046,
default=" __MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
+
+#ifdef CONFIG_WATCHDOG_NOWAYOUT
+static int nowayout = 1;
+#else
+static int nowayout = 0;
+#endif
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started
(default=CONFIG_WATCHDOG_NOWAYOUT)");
+
+/*
+ * Some i6300ESB specific functions
+ */
+
+/*
+ * Prepare for reloading the timer by unlocking the proper registers.
+ * This is performed by first writing 0x80 followed by 0x86 to the
+ * reload register. After this the appropriate registers can be written
+ * to once before they need to be unlocked again.
+ */
+static inline void esb_unlock_registers(void) {
+ writeb(ESB_UNLOCK1, ESB_RELOAD_REG);
+ writeb(ESB_UNLOCK2, ESB_RELOAD_REG);
+}
+
+static void esb_timer_start(void)
+{
+ u8 val;
+
+ /* Enable or Enable + Lock? */
+ val = 0x02 | nowayout ? 0x01 : 0x00;
+
+ pci_write_config_byte(esb_pci, ESB_LOCK_REG, val);
+}
+
+static int esb_timer_stop(void)
+{
+ u8 val;
+
+ spin_lock(&esb_lock);
+ /* First, reset timers as suggested by the docs */
+ esb_unlock_registers();
+ writew(0x10, ESB_RELOAD_REG);
+ /* Then disable the WDT */
+ pci_write_config_byte(esb_pci, ESB_LOCK_REG, 0x0);
+ pci_read_config_byte(esb_pci, ESB_LOCK_REG, &val);
+ spin_unlock(&esb_lock);
+
+ /* Returns 0 if the timer was disabled, non-zero otherwise */
+ return (val & 0x01);
+}
+
+static void esb_timer_keepalive(void)
+{
+ spin_lock(&esb_lock);
+ esb_unlock_registers();
+ writew(0x10, ESB_RELOAD_REG);
+ /* FIXME: Do we need to flush anything here? */
+ spin_unlock(&esb_lock);
+}
+
+static int esb_timer_set_heartbeat(int time)
+{
+ u32 val;
+
+ if (time < 0x1 || time > (2 * 0x03ff))
+ return -EINVAL;
+
+ spin_lock(&esb_lock);
+
+ /* We shift by 9, so if we are passed a value of 1 sec,
+ * val will be 1 << 9 = 512, then write that to two
+ * timers => 2 * 512 = 1024 (which is decremented at 1KHz)
+ */
+ val = time << 9;
+
+ /* Write timer 1 */
+ esb_unlock_registers();
+ writel(val, ESB_TIMER1_REG);
+
+ /* Write timer 2 */
+ esb_unlock_registers();
+ writel(val, ESB_TIMER2_REG);
+
+ /* Reload */
+ esb_unlock_registers();
+ writew(0x10, ESB_RELOAD_REG);
+
+ /* FIXME: Do we need to flush everything out? */
+
+ /* Done */
+ heartbeat = time;
+ spin_unlock(&esb_lock);
+ return 0;
+}
+
+static int esb_timer_read (void)
+{
+ u32 count;
+
+ /* This isn't documented, and doesn't take into
+ * acount which stage is running, but it looks
+ * like a 20 bit count down, so we might as well report it.
+ */
+ pci_read_config_dword(esb_pci, 0x64, &count);
+ return (int)count;
+}
+
+/*
+ * /dev/watchdog handling
+ */
+
+static int esb_open (struct inode *inode, struct file *file)
+{
+ /* /dev/watchdog can only be opened once */
+ if (test_and_set_bit(0, &timer_alive))
+ return -EBUSY;
+
+ /* Reload and activate timer */
+ esb_timer_keepalive ();
+ esb_timer_start ();
+
+ return nonseekable_open(inode, file);
+}
+
+static int esb_release (struct inode *inode, struct file *file)
+{
+ /* Shut off the timer. */
+ if (esb_expect_close == 42) {
+ esb_timer_stop ();
+ } else {
+ printk(KERN_CRIT PFX "Unexpected close, not stopping
watchdog!\n");
+ esb_timer_keepalive ();
+ }
+ clear_bit(0, &timer_alive);
+ esb_expect_close = 0;
+ return 0;
+}
+
+static ssize_t esb_write (struct file *file, const char __user *data,
+ size_t len, loff_t * ppos)
+{
+ /* See if we got the magic character 'V' and reload the timer */
+ if (len) {
+ if (!nowayout) {
+ size_t i;
+
+ /* note: just in case someone wrote the magic character
+ * five months ago... */
+ esb_expect_close = 0;
+
+ /* scan to see whether or not we got the magic
character */
+ for (i = 0; i != len; i++) {
+ char c;
+ if(get_user(c, data+i))
+ return -EFAULT;
+ if (c == 'V')
+ esb_expect_close = 42;
+ }
+ }
+
+ /* someone wrote to us, we should reload the timer */
+ esb_timer_keepalive ();
+ }
+ return len;
+}
+
+static int esb_ioctl (struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ int new_options, retval = -EINVAL;
+ int new_heartbeat;
+ void __user *argp = (void __user *)arg;
+ int __user *p = argp;
+ static struct watchdog_info ident = {
+ .options = WDIOF_SETTIMEOUT |
+ WDIOF_KEEPALIVEPING |
+ WDIOF_MAGICCLOSE,
+ .firmware_version = 0,
+ .identity = ESB_MODULE_NAME,
+ };
+
+ switch (cmd) {
+ case WDIOC_GETSUPPORT:
+ return copy_to_user(argp, &ident,
+ sizeof (ident)) ? -EFAULT : 0;
+
+ case WDIOC_GETSTATUS:
+ return put_user (esb_timer_read(), p);
+
+ case WDIOC_GETBOOTSTATUS:
+ return put_user (triggered, p);
+
+ case WDIOC_KEEPALIVE:
+ esb_timer_keepalive ();
+ return 0;
+
+ case WDIOC_SETOPTIONS:
+ {
+ if (get_user (new_options, p))
+ return -EFAULT;
+
+ if (new_options & WDIOS_DISABLECARD) {
+ esb_timer_stop ();
+ retval = 0;
+ }
+
+ if (new_options & WDIOS_ENABLECARD) {
+ esb_timer_keepalive ();
+ esb_timer_start ();
+ retval = 0;
+ }
+
+ return retval;
+ }
+
+ case WDIOC_SETTIMEOUT:
+ {
+ if (get_user(new_heartbeat, p))
+ return -EFAULT;
+
+ if (esb_timer_set_heartbeat(new_heartbeat))
+ return -EINVAL;
+
+ esb_timer_keepalive ();
+ /* Fall */
+ }
+
+ case WDIOC_GETTIMEOUT:
+ return put_user(heartbeat, p);
+
+ default:
+ return -ENOIOCTLCMD;
+ }
+}
+
+/*
+ * Notify system
+ */
+
+static int esb_notify_sys (struct notifier_block *this, unsigned long code,
void *unused)
+{
+ if (code==SYS_DOWN || code==SYS_HALT) {
+ /* Turn the WDT off */
+ esb_timer_stop ();
+ }
+
+ return NOTIFY_DONE;
+}
+
+/*
+ * Kernel Interfaces
+ */
+
+static struct file_operations esb_fops = {
+ .owner = THIS_MODULE,
+ .llseek = no_llseek,
+ .write = esb_write,
+ .ioctl = esb_ioctl,
+ .open = esb_open,
+ .release = esb_release,
+};
+
+static struct miscdevice esb_miscdev = {
+ .minor = WATCHDOG_MINOR,
+ .name = "watchdog",
+ .fops = &esb_fops,
+};
+
+static struct notifier_block esb_notifier = {
+ .notifier_call = esb_notify_sys,
+};
+
+/*
+ * Data for PCI driver interface
+ *
+ * This data only exists for exporting the supported
+ * PCI ids via MODULE_DEVICE_TABLE. We do not actually
+ * register a pci_driver, because someone else might one day
+ * want to register another driver on the same PCI id.
+ */
+static struct pci_device_id esb_pci_tbl[] = {
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_9, PCI_ANY_ID,
PCI_ANY_ID, },
+ { 0, }, /* End of list */
+};
+MODULE_DEVICE_TABLE (pci, esb_pci_tbl);
+
+/*
+ * Init & exit routines
+ */
+
+static unsigned char __init esb_getdevice (void)
+{
+ u8 val1;
+ unsigned short val2;
+
+ struct pci_dev *dev = NULL;
+ /*
+ * Find the PCI device
+ */
+
+ while ((dev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
+ if (pci_match_device(esb_pci_tbl, dev)) {
+ esb_pci = dev;
+ break;
+ }
+ }
+
+ if (esb_pci) {
+ if (pci_enable_device(esb_pci)) {
+ printk (KERN_ERR PFX "failed to enable device\n");
+ goto out;
+ }
+
+ if (pci_request_region(esb_pci, 0, ESB_MODULE_NAME)) {
+ printk (KERN_ERR PFX "failed to request region\n");
+ goto err_disable;
+ }
+
+ BASEADDR = ioremap(pci_resource_start(esb_pci, 0),
+ pci_resource_len(esb_pci, 0));
+ if (BASEADDR == NULL) {
+ /* Something's wrong here, BASEADDR has to be set */
+ printk (KERN_ERR PFX "failed to get BASEADDR\n");
+ goto err_release;
+ }
+
+ /*
+ * The watchdog has two timers, it can be setup so that the
+ * expiry of timer1 results in an interrupt and the expiry of
+ * timer2 results in a reboot. We set it to not generate
+ * any interrupts as there is not much we can do with it
+ * right now.
+ *
+ * We also enable reboots and set the timer frequency to
+ * the PCI clock divided by 2^15 (approx 1KHz).
+ */
+ pci_write_config_word(esb_pci, ESB_CONFIG_REG, 0x0003);
+
+ /* Check that the WDT isn't already locked */
+ pci_read_config_byte(esb_pci, ESB_LOCK_REG, &val1);
+ if (val1 & ESB_WDT_LOCK)
+ printk (KERN_WARNING PFX "nowayout already set\n");
+
+ /* Set the timer to watchdog mode and disable it for now */
+ pci_write_config_byte(esb_pci, ESB_LOCK_REG, 0x00);
+
+ /* Check if the watchdog was previously triggered */
+ esb_unlock_registers();
+ val2 = readw(ESB_RELOAD_REG);
+ triggered = (val2 & (0x01 << 9) >> 9);
+
+ /* Reset trigger flag and timers */
+ esb_unlock_registers();
+ writew((0x11 << 8), ESB_RELOAD_REG);
+
+ /* Done */
+ return 1;
+
+err_release:
+ pci_release_region(esb_pci, 0);
+err_disable:
+ pci_disable_device(esb_pci);
+ }
+out:
+ return 0;
+}
+
+static int __init watchdog_init (void)
+{
+ int ret;
+
+ spin_lock_init(&esb_lock);
+
+ /* Check whether or not the hardware watchdog is there */
+ if (!esb_getdevice () || esb_pci == NULL)
+ return -ENODEV;
+
+ /* Check that the heartbeat value is within it's range ; if not reset
to the default */
+ if (esb_timer_set_heartbeat (heartbeat)) {
+ esb_timer_set_heartbeat (WATCHDOG_HEARTBEAT);
+ printk(KERN_INFO PFX "heartbeat value must be
1<heartbeat<2046, using %d\n",
+ heartbeat);
+ }
+
+ ret = register_reboot_notifier(&esb_notifier);
+ if (ret != 0) {
+ printk(KERN_ERR PFX "cannot register reboot notifier
(err=%d)\n",
+ ret);
+ goto err_unmap;
+ }
+
+ ret = misc_register(&esb_miscdev);
+ if (ret != 0) {
+ printk(KERN_ERR PFX "cannot register miscdev on minor=%d
(err=%d)\n",
+ WATCHDOG_MINOR, ret);
+ goto err_notifier;
+ }
+
+ esb_timer_stop ();
+
+ printk (KERN_INFO PFX "initialized (0x%p). heartbeat=%d sec
(nowayout=%d)\n",
+ BASEADDR, heartbeat, nowayout);
+
+ return 0;
+
+err_notifier:
+ unregister_reboot_notifier(&esb_notifier);
+err_unmap:
+ iounmap(BASEADDR);
+/* err_release: */
+ pci_release_region(esb_pci, 0);
+/* err_disable: */
+ pci_disable_device(esb_pci);
+/* out: */
+ return ret;
+}
+
+static void __exit watchdog_cleanup (void)
+{
+ /* Stop the timer before we leave */
+ if (!nowayout)
+ esb_timer_stop ();
+
+ /* Deregister */
+ misc_deregister(&esb_miscdev);
+ unregister_reboot_notifier(&esb_notifier);
+ iounmap(BASEADDR);
+ pci_release_region(esb_pci, 0);
+ pci_disable_device(esb_pci);
+}
+
+module_init(watchdog_init);
+module_exit(watchdog_cleanup);
+
+MODULE_AUTHOR("Ross Biro and David Härdeman");
+MODULE_DESCRIPTION("Watchdog driver for Intel 6300ESB chipsets");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff -Nru a/drivers/char/watchdog/i6300esb.h b/drivers/char/watchdog/i6300esb.h
--- /dev/null Wed Dec 31 16:00:00 196900
+++ b/drivers/char/watchdog/i6300esb.h 2005-03-15 22:44:23 +01:00
@@ -0,0 +1,62 @@
+/*
+ * i8xx_tco: TCO timer driver for i8xx chipsets
+ *
+ * (c) Copyright 2000 kernel concepts <[EMAIL PROTECTED]>, All Rights
Reserved.
+ * http://www.kernelconcepts.de
+ *
+ * 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.
+ *
+ * Neither kernel concepts nor Nils Faerber admit liability nor provide
+ * warranty for any of this software. This material is provided
+ * "AS-IS" and at no charge.
+ *
+ * (c) Copyright 2000 kernel concepts <[EMAIL PROTECTED]>
+ * developed for
+ * Jentro AG, Haar/Munich (Germany)
+ *
+ * TCO timer driver for i8xx chipsets
+ * based on softdog.c by Alan Cox <[EMAIL PROTECTED]>
+ *
+ * For history and the complete list of supported I/O Controller Hub's
+ * see i8xx_tco.c
+ */
+
+
+/*
+ * Some address definitions for the TCO
+ */
+
+/* PCI configuration registers */
+#define ESB_CONFIG_REG 0x60 /* Config register */
+#define ESB_LOCK_REG 0x68 /* WDT lock register */
+
+/* Memory mapped registers */
+#define ESB_TIMER1_REG BASEADDR + 0x00 /* Timer1 value after each reset */
+#define ESB_TIMER2_REG BASEADDR + 0x04 /* Timer2 value after each reset */
+#define ESB_GINTSR_REG BASEADDR + 0x08 /* General Interrupt Status Register */
+#define ESB_RELOAD_REG BASEADDR + 0x0c /* Reload register */
+
+
+/*
+ * Some register bits
+ */
+
+/* Lock register bits */
+#define ESB_WDT_FUNC ( 0x01 << 2 ) /* Watchdog functionality */
+#define ESB_WDT_ENABLE ( 0x01 << 1 ) /* Enable WDT */
+#define ESB_WDT_LOCK ( 0x01 << 0 ) /* Lock (nowayout) */
+
+/* Config register bits */
+#define ESB_WDT_REBOOT ( 0x01 << 5 ) /* Enable reboot on timeout */
+#define ESB_WDT_FREQ ( 0x01 << 2 ) /* Decrement frequency */
+#define ESB_WDT_INTTYPE ( 0x11 << 0 ) /* Interrupt type on timer1 timeout */
+
+
+/*
+ * Some magic constants
+ */
+#define ESB_UNLOCK1 0x80 /* Step 1 to unlock reset registers */
+#define ESB_UNLOCK2 0x86 /* Step 2 to unlock reset registers */
diff -Nru a/drivers/char/watchdog/i8xx_tco.c b/drivers/char/watchdog/i8xx_tco.c
--- a/drivers/char/watchdog/i8xx_tco.c 2005-03-15 22:44:26 +01:00
+++ b/drivers/char/watchdog/i8xx_tco.c 2005-03-15 22:44:26 +01:00
@@ -382,6 +382,7 @@
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH6_2, PCI_ANY_ID,
PCI_ANY_ID, },
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_0, PCI_ANY_ID,
PCI_ANY_ID, },
{ PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ICH7_1, PCI_ANY_ID,
PCI_ANY_ID, },
+ { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_ESB_1, PCI_ANY_ID,
PCI_ANY_ID, },
{ 0, }, /* End of list */
};
MODULE_DEVICE_TABLE (pci, i8xx_tco_pci_tbl);
diff -Nru a/drivers/char/watchdog/s3c2410_wdt.c
b/drivers/char/watchdog/s3c2410_wdt.c
--- a/drivers/char/watchdog/s3c2410_wdt.c 2005-03-15 22:44:29 +01:00
+++ b/drivers/char/watchdog/s3c2410_wdt.c 2005-03-15 22:44:29 +01:00
@@ -27,7 +27,9 @@
* Fixed tmr_count / wdt_count confusion
* Added configurable debug
*
- * 11-Jan-2004 BJD Fixed divide-by-2 in timeout code
+ * 11-Jan-2005 BJD Fixed divide-by-2 in timeout code
+ *
+ * 25-Jan-2005 DA Added suspend/resume support
*
* 10-Mar-2005 LCVR Changed S3C2410_VA to S3C24XX_VA
*/
@@ -484,15 +486,57 @@
return 0;
}
+#ifdef CONFIG_PM
+
+static unsigned long wtcon_save;
+static unsigned long wtdat_save;
+
+static int s3c2410wdt_suspend(struct device *dev, u32 state, u32 level)
+{
+ if (level == SUSPEND_POWER_DOWN) {
+ /* Save watchdog state, and turn it off. */
+ wtcon_save = readl(wdt_base + S3C2410_WTCON);
+ wtdat_save = readl(wdt_base + S3C2410_WTDAT);
+
+ /* Note that WTCNT doesn't need to be saved. */
+ s3c2410wdt_stop();
+ }
+
+ return 0;
+}
+
+static int s3c2410wdt_resume(struct device *dev, u32 level)
+{
+ if (level == RESUME_POWER_ON) {
+ /* Restore watchdog state. */
+
+ writel(wtdat_save, wdt_base + S3C2410_WTDAT);
+ writel(wtdat_save, wdt_base + S3C2410_WTCNT); /* Reset count */
+ writel(wtcon_save, wdt_base + S3C2410_WTCON);
+
+ printk(KERN_INFO PFX "watchdog %sabled\n",
+ (wtcon_save & S3C2410_WTCON_ENABLE) ? "en" : "dis");
+ }
+
+ return 0;
+}
+
+#else
+#define s3c2410wdt_suspend NULL
+#define s3c2410wdt_resume NULL
+#endif /* CONFIG_PM */
+
+
static struct device_driver s3c2410wdt_driver = {
.name = "s3c2410-wdt",
.bus = &platform_bus_type,
.probe = s3c2410wdt_probe,
.remove = s3c2410wdt_remove,
+ .suspend = s3c2410wdt_suspend,
+ .resume = s3c2410wdt_resume,
};
-
static char banner[] __initdata = KERN_INFO "S3C2410 Watchdog Timer, (c) 2004
Simtec Electronics\n";
static int __init watchdog_init(void)
@@ -510,7 +554,8 @@
module_init(watchdog_init);
module_exit(watchdog_exit);
-MODULE_AUTHOR("Ben Dooks <[EMAIL PROTECTED]>");
+MODULE_AUTHOR("Ben Dooks <[EMAIL PROTECTED]>, "
+ "Dimitry Andric <[EMAIL PROTECTED]>");
MODULE_DESCRIPTION("S3C2410 Watchdog Device Driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR);
diff -Nru a/drivers/char/watchdog/s3c2410_wdt.c
b/drivers/char/watchdog/s3c2410_wdt.c
--- a/drivers/char/watchdog/s3c2410_wdt.c 2005-03-15 22:44:31 +01:00
+++ b/drivers/char/watchdog/s3c2410_wdt.c 2005-03-15 22:44:31 +01:00
@@ -30,6 +30,7 @@
* 11-Jan-2005 BJD Fixed divide-by-2 in timeout code
*
* 25-Jan-2005 DA Added suspend/resume support
+ * Replaced reboot notifier with .shutdown method
*
* 10-Mar-2005 LCVR Changed S3C2410_VA to S3C24XX_VA
*/
@@ -42,8 +43,6 @@
#include <linux/miscdevice.h>
#include <linux/watchdog.h>
#include <linux/fs.h>
-#include <linux/notifier.h>
-#include <linux/reboot.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/interrupt.h>
@@ -324,20 +323,6 @@
}
}
-/*
- * Notifier for system down
- */
-
-static int s3c2410wdt_notify_sys(struct notifier_block *this, unsigned long
code,
- void *unused)
-{
- if(code==SYS_DOWN || code==SYS_HALT) {
- /* Turn the WDT off */
- s3c2410wdt_stop();
- }
- return NOTIFY_DONE;
-}
-
/* kernel interface */
static struct file_operations s3c2410wdt_fops = {
@@ -355,10 +340,6 @@
.fops = &s3c2410wdt_fops,
};
-static struct notifier_block s3c2410wdt_notifier = {
- .notifier_call = s3c2410wdt_notify_sys,
-};
-
/* interrupt handler code */
static irqreturn_t s3c2410wdt_irq(int irqno, void *param,
@@ -439,18 +420,10 @@
}
}
- ret = register_reboot_notifier(&s3c2410wdt_notifier);
- if (ret) {
- printk (KERN_ERR PFX "cannot register reboot notifier (%d)\n",
- ret);
- return ret;
- }
-
ret = misc_register(&s3c2410wdt_miscdev);
if (ret) {
printk (KERN_ERR PFX "cannot register miscdev on minor=%d
(%d)\n",
WATCHDOG_MINOR, ret);
- unregister_reboot_notifier(&s3c2410wdt_notifier);
return ret;
}
@@ -486,6 +459,11 @@
return 0;
}
+static void s3c2410wdt_shutdown(struct device *dev)
+{
+ s3c2410wdt_stop();
+}
+
#ifdef CONFIG_PM
static unsigned long wtcon_save;
@@ -532,6 +510,7 @@
.bus = &platform_bus_type,
.probe = s3c2410wdt_probe,
.remove = s3c2410wdt_remove,
+ .shutdown = s3c2410wdt_shutdown,
.suspend = s3c2410wdt_suspend,
.resume = s3c2410wdt_resume,
};
@@ -548,7 +527,6 @@
static void __exit watchdog_exit(void)
{
driver_unregister(&s3c2410wdt_driver);
- unregister_reboot_notifier(&s3c2410wdt_notifier);
}
module_init(watchdog_init);
diff -Nru a/drivers/char/watchdog/Makefile b/drivers/char/watchdog/Makefile
--- a/drivers/char/watchdog/Makefile 2005-03-15 22:44:34 +01:00
+++ b/drivers/char/watchdog/Makefile 2005-03-15 22:44:34 +01:00
@@ -2,43 +2,66 @@
# Makefile for the WatchDog device drivers.
#
+# Only one watchdog can succeed. We probe the ISA/PCI/USB based
+# watchdog-cards first, then the architecture specific watchdog
+# drivers and then the architecture independant "softdog" driver.
+# This means that if your ISA/PCI/USB card isn't detected that
+# you can fall back to an architecture specific driver and if
+# that also fails then you can fall back to the software watchdog
+# to give you some cover.
+
+# ISA-based Watchdog Cards
obj-$(CONFIG_PCWATCHDOG) += pcwd.o
-obj-$(CONFIG_ACQUIRE_WDT) += acquirewdt.o
-obj-$(CONFIG_ADVANTECH_WDT) += advantechwdt.o
-obj-$(CONFIG_IB700_WDT) += ib700wdt.o
obj-$(CONFIG_MIXCOMWD) += mixcomwd.o
-obj-$(CONFIG_SCx200_WDT) += scx200_wdt.o
-obj-$(CONFIG_60XX_WDT) += sbc60xxwdt.o
obj-$(CONFIG_WDT) += wdt.o
+
+# PCI-based Watchdog Cards
+obj-$(CONFIG_PCIPCWATCHDOG) += pcwd_pci.o
obj-$(CONFIG_WDTPCI) += wdt_pci.o
+
+# USB-based Watchdog Cards
+obj-$(CONFIG_USBPCWATCHDOG) += pcwd_usb.o
+
+# ARM Architecture
obj-$(CONFIG_21285_WATCHDOG) += wdt285.o
obj-$(CONFIG_977_WATCHDOG) += wdt977.o
-obj-$(CONFIG_I8XX_TCO) += i8xx_tco.o
-obj-$(CONFIG_I6300ESB_WDT) += i6300esb.o
-obj-$(CONFIG_MACHZ_WDT) += machzwd.o
-obj-$(CONFIG_SH_WDT) += shwdt.o
+obj-$(CONFIG_IXP4XX_WATCHDOG) += ixp4xx_wdt.o
+obj-$(CONFIG_IXP2000_WATCHDOG) += ixp2000_wdt.o
obj-$(CONFIG_S3C2410_WATCHDOG) += s3c2410_wdt.o
obj-$(CONFIG_SA1100_WATCHDOG) += sa1100_wdt.o
-obj-$(CONFIG_EUROTECH_WDT) += eurotechwdt.o
-obj-$(CONFIG_W83877F_WDT) += w83877f_wdt.o
-obj-$(CONFIG_W83627HF_WDT) += w83627hf_wdt.o
-obj-$(CONFIG_SC520_WDT) += sc520_wdt.o
-obj-$(CONFIG_ALIM7101_WDT) += alim7101_wdt.o
+
+# X86 (i386 + ia64 + x86_64) Architecture
+obj-$(CONFIG_ACQUIRE_WDT) += acquirewdt.o
+obj-$(CONFIG_ADVANTECH_WDT) += advantechwdt.o
obj-$(CONFIG_ALIM1535_WDT) += alim1535_wdt.o
-obj-$(CONFIG_SC1200_WDT) += sc1200wdt.o
+obj-$(CONFIG_ALIM7101_WDT) += alim7101_wdt.o
+obj-$(CONFIG_SC520_WDT) += sc520_wdt.o
+obj-$(CONFIG_EUROTECH_WDT) += eurotechwdt.o
+obj-$(CONFIG_IB700_WDT) += ib700wdt.o
obj-$(CONFIG_WAFER_WDT) += wafer5823wdt.o
+obj-$(CONFIG_I8XX_TCO) += i8xx_tco.o
+obj-$(CONFIG_I6300ESB_WDT) += i6300esb.o
+obj-$(CONFIG_SC1200_WDT) += sc1200wdt.o
+obj-$(CONFIG_SCx200_WDT) += scx200_wdt.o
+obj-$(CONFIG_60XX_WDT) += sbc60xxwdt.o
obj-$(CONFIG_CPU5_WDT) += cpu5wdt.o
-obj-$(CONFIG_INDYDOG) += indydog.o
-obj-$(CONFIG_PCIPCWATCHDOG) += pcwd_pci.o
-obj-$(CONFIG_USBPCWATCHDOG) += pcwd_usb.o
-obj-$(CONFIG_IXP4XX_WATCHDOG) += ixp4xx_wdt.o
-obj-$(CONFIG_IXP2000_WATCHDOG) += ixp2000_wdt.o
+obj-$(CONFIG_W83627HF_WDT) += w83627hf_wdt.o
+obj-$(CONFIG_W83877F_WDT) += w83877f_wdt.o
+obj-$(CONFIG_MACHZ_WDT) += machzwd.o
+
+# PowerPC Architecture
obj-$(CONFIG_8xx_WDT) += mpc8xx_wdt.o
obj-$(CONFIG_MV64X60_WDT) += mv64x60_wdt.o
-# Only one watchdog can succeed. We probe the hardware watchdog
-# drivers first, then the softdog driver. This means if your hardware
-# watchdog dies or is 'borrowed' for some reason the software watchdog
-# still gives you some cover.
+# MIPS Architecture
+obj-$(CONFIG_INDYDOG) += indydog.o
+
+# S390 Architecture
+
+# SUPERH Architecture
+obj-$(CONFIG_SH_WDT) += shwdt.o
+
+# SPARC64 Architecture
+# Architecture Independant
obj-$(CONFIG_SOFT_WATCHDOG) += softdog.o
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
