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authorLinus Torvalds <torvalds@linux-foundation.org>2021-02-22 19:50:01 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2021-02-22 19:50:01 +0300
commit983e4adae0cfa4d3dfdf73b79aabc450dda8ce0e (patch)
treeaddc29bc5cf959ef4eb1258c9722d4afdfaa063e /drivers/watchdog
parent31caf8b2a847214be856f843e251fc2ed2cd1075 (diff)
parenta7d53dbbc70a81d5781da7fc905b656f41ad2381 (diff)
downloadlinux-983e4adae0cfa4d3dfdf73b79aabc450dda8ce0e.tar.xz
Merge tag 'platform-drivers-x86-v5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede: "Highlights: - Microsoft Surface devices System Aggregator Module support - SW_TABLET_MODE reporting improvements - thinkpad_acpi keyboard language setting support - platform / DPTF profile settings support: - Base / userspace API parts merged from Rafael's acpi-platform branch - thinkpad_acpi and ideapad-laptop support through pdx86 - Remove support for some obsolete Intel MID platforms through merging of the shared intel-mid-removal branch - Big cleanup of the ideapad-laptop driver - Misc other fixes / new hw support / quirks" * tag 'platform-drivers-x86-v5.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (99 commits) platform/x86: intel_scu_ipc: Increase virtual timeout from 3 to 5 seconds platform/surface: aggregator: Fix access of unaligned value tools/power/x86/intel-speed-select: Update version to 1.8 tools/power/x86/intel-speed-select: Add new command to get/set TRL tools/power/x86/intel-speed-select: Add new command turbo-mode Platform: OLPC: Constify static struct regulator_ops platform/surface: Add Surface Hot-Plug driver platform/x86: intel_scu_wdt: Drop mistakenly added const platform/x86: Kconfig: add missing selects for ideapad-laptop platform/x86: acer-wmi: Don't use ACPI_EXCEPTION() platform/x86: thinkpad_acpi: Replace ifdef CONFIG_ACPI_PLATFORM_PROFILE with depends on platform/x86: thinkpad_acpi: Fix 'warning: no previous prototype for' warnings platform/x86: msi-wmi: Fix variable 'status' set but not used compiler warning platform/surface: surface3-wmi: Fix variable 'status' set but not used compiler warning platform/x86: Move all dell drivers to their own subdirectory Documentation/ABI: sysfs-platform-ideapad-laptop: conservation_mode attribute Documentation/ABI: sysfs-platform-ideapad-laptop: update device attribute paths platform/x86: ideapad-laptop: add "always on USB charging" control support platform/x86: ideapad-laptop: add keyboard backlight control support platform/x86: ideapad-laptop: send notification about touchpad state change to sysfs ...
Diffstat (limited to 'drivers/watchdog')
-rw-r--r--drivers/watchdog/Kconfig9
-rw-r--r--drivers/watchdog/Makefile1
-rw-r--r--drivers/watchdog/intel-mid_wdt.c8
-rw-r--r--drivers/watchdog/intel_scu_watchdog.c533
-rw-r--r--drivers/watchdog/intel_scu_watchdog.h50
5 files changed, 4 insertions, 597 deletions
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 7ff941e71b79..6b9e93d8532b 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -1219,15 +1219,6 @@ config IE6XX_WDT
To compile this driver as a module, choose M here: the
module will be called ie6xx_wdt.
-config INTEL_SCU_WATCHDOG
- bool "Intel SCU Watchdog for Mobile Platforms"
- depends on X86_INTEL_MID
- help
- Hardware driver for the watchdog time built into the Intel SCU
- for Intel Mobile Platforms.
-
- To compile this driver as a module, choose M here.
-
config INTEL_MID_WATCHDOG
tristate "Intel MID Watchdog Timer"
depends on X86_INTEL_MID
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index 5c74ee19d441..74f61e4105d8 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -140,7 +140,6 @@ obj-$(CONFIG_W83877F_WDT) += w83877f_wdt.o
obj-$(CONFIG_W83977F_WDT) += w83977f_wdt.o
obj-$(CONFIG_MACHZ_WDT) += machzwd.o
obj-$(CONFIG_SBC_EPX_C3_WATCHDOG) += sbc_epx_c3.o
-obj-$(CONFIG_INTEL_SCU_WATCHDOG) += intel_scu_watchdog.o
obj-$(CONFIG_INTEL_MID_WATCHDOG) += intel-mid_wdt.o
obj-$(CONFIG_INTEL_MEI_WDT) += mei_wdt.o
obj-$(CONFIG_NI903X_WDT) += ni903x_wdt.o
diff --git a/drivers/watchdog/intel-mid_wdt.c b/drivers/watchdog/intel-mid_wdt.c
index 1ae03b64ef8b..9b2173f765c8 100644
--- a/drivers/watchdog/intel-mid_wdt.c
+++ b/drivers/watchdog/intel-mid_wdt.c
@@ -154,6 +154,10 @@ static int mid_wdt_probe(struct platform_device *pdev)
watchdog_set_nowayout(wdt_dev, WATCHDOG_NOWAYOUT);
watchdog_set_drvdata(wdt_dev, mid);
+ mid->scu = devm_intel_scu_ipc_dev_get(dev);
+ if (!mid->scu)
+ return -EPROBE_DEFER;
+
ret = devm_request_irq(dev, pdata->irq, mid_wdt_irq,
IRQF_SHARED | IRQF_NO_SUSPEND, "watchdog",
wdt_dev);
@@ -162,10 +166,6 @@ static int mid_wdt_probe(struct platform_device *pdev)
return ret;
}
- mid->scu = devm_intel_scu_ipc_dev_get(dev);
- if (!mid->scu)
- return -EPROBE_DEFER;
-
/*
* The firmware followed by U-Boot leaves the watchdog running
* with the default threshold which may vary. When we get here
diff --git a/drivers/watchdog/intel_scu_watchdog.c b/drivers/watchdog/intel_scu_watchdog.c
deleted file mode 100644
index 804e35940983..000000000000
--- a/drivers/watchdog/intel_scu_watchdog.c
+++ /dev/null
@@ -1,533 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Intel_SCU 0.2: An Intel SCU IOH Based Watchdog Device
- * for Intel part #(s):
- * - AF82MP20 PCH
- *
- * Copyright (C) 2009-2010 Intel Corporation. All rights reserved.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/compiler.h>
-#include <linux/kernel.h>
-#include <linux/moduleparam.h>
-#include <linux/types.h>
-#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/jiffies.h>
-#include <linux/uaccess.h>
-#include <linux/slab.h>
-#include <linux/io.h>
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/sched.h>
-#include <linux/signal.h>
-#include <linux/sfi.h>
-#include <asm/irq.h>
-#include <linux/atomic.h>
-#include <asm/intel_scu_ipc.h>
-#include <asm/apb_timer.h>
-#include <asm/intel-mid.h>
-
-#include "intel_scu_watchdog.h"
-
-/* Bounds number of times we will retry loading time count */
-/* This retry is a work around for a silicon bug. */
-#define MAX_RETRY 16
-
-#define IPC_SET_WATCHDOG_TIMER 0xF8
-
-static int timer_margin = DEFAULT_SOFT_TO_HARD_MARGIN;
-module_param(timer_margin, int, 0);
-MODULE_PARM_DESC(timer_margin,
- "Watchdog timer margin"
- "Time between interrupt and resetting the system"
- "The range is from 1 to 160"
- "This is the time for all keep alives to arrive");
-
-static int timer_set = DEFAULT_TIME;
-module_param(timer_set, int, 0);
-MODULE_PARM_DESC(timer_set,
- "Default Watchdog timer setting"
- "Complete cycle time"
- "The range is from 1 to 170"
- "This is the time for all keep alives to arrive");
-
-/* After watchdog device is closed, check force_boot. If:
- * force_boot == 0, then force boot on next watchdog interrupt after close,
- * force_boot == 1, then force boot immediately when device is closed.
- */
-static int force_boot;
-module_param(force_boot, int, 0);
-MODULE_PARM_DESC(force_boot,
- "A value of 1 means that the driver will reboot"
- "the system immediately if the /dev/watchdog device is closed"
- "A value of 0 means that when /dev/watchdog device is closed"
- "the watchdog timer will be refreshed for one more interval"
- "of length: timer_set. At the end of this interval, the"
- "watchdog timer will reset the system."
- );
-
-/* there is only one device in the system now; this can be made into
- * an array in the future if we have more than one device */
-
-static struct intel_scu_watchdog_dev watchdog_device;
-
-/* Forces restart, if force_reboot is set */
-static void watchdog_fire(void)
-{
- if (force_boot) {
- pr_crit("Initiating system reboot\n");
- emergency_restart();
- pr_crit("Reboot didn't ?????\n");
- }
-
- else {
- pr_crit("Immediate Reboot Disabled\n");
- pr_crit("System will reset when watchdog timer times out!\n");
- }
-}
-
-static int check_timer_margin(int new_margin)
-{
- if ((new_margin < MIN_TIME_CYCLE) ||
- (new_margin > MAX_TIME - timer_set)) {
- pr_debug("value of new_margin %d is out of the range %d to %d\n",
- new_margin, MIN_TIME_CYCLE, MAX_TIME - timer_set);
- return -EINVAL;
- }
- return 0;
-}
-
-/*
- * IPC operations
- */
-static int watchdog_set_ipc(int soft_threshold, int threshold)
-{
- u32 *ipc_wbuf;
- u8 cbuf[16] = { '\0' };
- int ipc_ret = 0;
-
- ipc_wbuf = (u32 *)&cbuf;
- ipc_wbuf[0] = soft_threshold;
- ipc_wbuf[1] = threshold;
-
- ipc_ret = intel_scu_ipc_command(
- IPC_SET_WATCHDOG_TIMER,
- 0,
- ipc_wbuf,
- 2,
- NULL,
- 0);
-
- if (ipc_ret != 0)
- pr_err("Error setting SCU watchdog timer: %x\n", ipc_ret);
-
- return ipc_ret;
-};
-
-/*
- * Intel_SCU operations
- */
-
-/* timer interrupt handler */
-static irqreturn_t watchdog_timer_interrupt(int irq, void *dev_id)
-{
- int int_status;
- int_status = ioread32(watchdog_device.timer_interrupt_status_addr);
-
- pr_debug("irq, int_status: %x\n", int_status);
-
- if (int_status != 0)
- return IRQ_NONE;
-
- /* has the timer been started? If not, then this is spurious */
- if (watchdog_device.timer_started == 0) {
- pr_debug("spurious interrupt received\n");
- return IRQ_HANDLED;
- }
-
- /* temporarily disable the timer */
- iowrite32(0x00000002, watchdog_device.timer_control_addr);
-
- /* set the timer to the threshold */
- iowrite32(watchdog_device.threshold,
- watchdog_device.timer_load_count_addr);
-
- /* allow the timer to run */
- iowrite32(0x00000003, watchdog_device.timer_control_addr);
-
- return IRQ_HANDLED;
-}
-
-static int intel_scu_keepalive(void)
-{
-
- /* read eoi register - clears interrupt */
- ioread32(watchdog_device.timer_clear_interrupt_addr);
-
- /* temporarily disable the timer */
- iowrite32(0x00000002, watchdog_device.timer_control_addr);
-
- /* set the timer to the soft_threshold */
- iowrite32(watchdog_device.soft_threshold,
- watchdog_device.timer_load_count_addr);
-
- /* allow the timer to run */
- iowrite32(0x00000003, watchdog_device.timer_control_addr);
-
- return 0;
-}
-
-static int intel_scu_stop(void)
-{
- iowrite32(0, watchdog_device.timer_control_addr);
- return 0;
-}
-
-static int intel_scu_set_heartbeat(u32 t)
-{
- int ipc_ret;
- int retry_count;
- u32 soft_value;
- u32 hw_value;
-
- watchdog_device.timer_set = t;
- watchdog_device.threshold =
- timer_margin * watchdog_device.timer_tbl_ptr->freq_hz;
- watchdog_device.soft_threshold =
- (watchdog_device.timer_set - timer_margin)
- * watchdog_device.timer_tbl_ptr->freq_hz;
-
- pr_debug("set_heartbeat: timer freq is %d\n",
- watchdog_device.timer_tbl_ptr->freq_hz);
- pr_debug("set_heartbeat: timer_set is %x (hex)\n",
- watchdog_device.timer_set);
- pr_debug("set_heartbeat: timer_margin is %x (hex)\n", timer_margin);
- pr_debug("set_heartbeat: threshold is %x (hex)\n",
- watchdog_device.threshold);
- pr_debug("set_heartbeat: soft_threshold is %x (hex)\n",
- watchdog_device.soft_threshold);
-
- /* Adjust thresholds by FREQ_ADJUSTMENT factor, to make the */
- /* watchdog timing come out right. */
- watchdog_device.threshold =
- watchdog_device.threshold / FREQ_ADJUSTMENT;
- watchdog_device.soft_threshold =
- watchdog_device.soft_threshold / FREQ_ADJUSTMENT;
-
- /* temporarily disable the timer */
- iowrite32(0x00000002, watchdog_device.timer_control_addr);
-
- /* send the threshold and soft_threshold via IPC to the processor */
- ipc_ret = watchdog_set_ipc(watchdog_device.soft_threshold,
- watchdog_device.threshold);
-
- if (ipc_ret != 0) {
- /* Make sure the watchdog timer is stopped */
- intel_scu_stop();
- return ipc_ret;
- }
-
- /* Soft Threshold set loop. Early versions of silicon did */
- /* not always set this count correctly. This loop checks */
- /* the value and retries if it was not set correctly. */
-
- retry_count = 0;
- soft_value = watchdog_device.soft_threshold & 0xFFFF0000;
- do {
-
- /* Make sure timer is stopped */
- intel_scu_stop();
-
- if (MAX_RETRY < retry_count++) {
- /* Unable to set timer value */
- pr_err("Unable to set timer\n");
- return -ENODEV;
- }
-
- /* set the timer to the soft threshold */
- iowrite32(watchdog_device.soft_threshold,
- watchdog_device.timer_load_count_addr);
-
- /* read count value before starting timer */
- ioread32(watchdog_device.timer_load_count_addr);
-
- /* Start the timer */
- iowrite32(0x00000003, watchdog_device.timer_control_addr);
-
- /* read the value the time loaded into its count reg */
- hw_value = ioread32(watchdog_device.timer_load_count_addr);
- hw_value = hw_value & 0xFFFF0000;
-
-
- } while (soft_value != hw_value);
-
- watchdog_device.timer_started = 1;
-
- return 0;
-}
-
-/*
- * /dev/watchdog handling
- */
-
-static int intel_scu_open(struct inode *inode, struct file *file)
-{
-
- /* Set flag to indicate that watchdog device is open */
- if (test_and_set_bit(0, &watchdog_device.driver_open))
- return -EBUSY;
-
- /* Check for reopen of driver. Reopens are not allowed */
- if (watchdog_device.driver_closed)
- return -EPERM;
-
- return stream_open(inode, file);
-}
-
-static int intel_scu_release(struct inode *inode, struct file *file)
-{
- /*
- * This watchdog should not be closed, after the timer
- * is started with the WDIPC_SETTIMEOUT ioctl
- * If force_boot is set watchdog_fire() will cause an
- * immediate reset. If force_boot is not set, the watchdog
- * timer is refreshed for one more interval. At the end
- * of that interval, the watchdog timer will reset the system.
- */
-
- if (!test_and_clear_bit(0, &watchdog_device.driver_open)) {
- pr_debug("intel_scu_release, without open\n");
- return -ENOTTY;
- }
-
- if (!watchdog_device.timer_started) {
- /* Just close, since timer has not been started */
- pr_debug("closed, without starting timer\n");
- return 0;
- }
-
- pr_crit("Unexpected close of /dev/watchdog!\n");
-
- /* Since the timer was started, prevent future reopens */
- watchdog_device.driver_closed = 1;
-
- /* Refresh the timer for one more interval */
- intel_scu_keepalive();
-
- /* Reboot system (if force_boot is set) */
- watchdog_fire();
-
- /* We should only reach this point if force_boot is not set */
- return 0;
-}
-
-static ssize_t intel_scu_write(struct file *file,
- char const *data,
- size_t len,
- loff_t *ppos)
-{
-
- if (watchdog_device.timer_started)
- /* Watchdog already started, keep it alive */
- intel_scu_keepalive();
- else
- /* Start watchdog with timer value set by init */
- intel_scu_set_heartbeat(watchdog_device.timer_set);
-
- return len;
-}
-
-static long intel_scu_ioctl(struct file *file,
- unsigned int cmd,
- unsigned long arg)
-{
- void __user *argp = (void __user *)arg;
- u32 __user *p = argp;
- u32 new_margin;
-
-
- static const struct watchdog_info ident = {
- .options = WDIOF_SETTIMEOUT
- | WDIOF_KEEPALIVEPING,
- .firmware_version = 0, /* @todo Get from SCU via
- ipc_get_scu_fw_version()? */
- .identity = "Intel_SCU IOH Watchdog" /* len < 32 */
- };
-
- switch (cmd) {
- case WDIOC_GETSUPPORT:
- return copy_to_user(argp,
- &ident,
- sizeof(ident)) ? -EFAULT : 0;
- case WDIOC_GETSTATUS:
- case WDIOC_GETBOOTSTATUS:
- return put_user(0, p);
- case WDIOC_KEEPALIVE:
- intel_scu_keepalive();
-
- return 0;
- case WDIOC_SETTIMEOUT:
- if (get_user(new_margin, p))
- return -EFAULT;
-
- if (check_timer_margin(new_margin))
- return -EINVAL;
-
- if (intel_scu_set_heartbeat(new_margin))
- return -EINVAL;
- return 0;
- case WDIOC_GETTIMEOUT:
- return put_user(watchdog_device.soft_threshold, p);
-
- default:
- return -ENOTTY;
- }
-}
-
-/*
- * Notifier for system down
- */
-static int intel_scu_notify_sys(struct notifier_block *this,
- unsigned long code,
- void *another_unused)
-{
- if (code == SYS_DOWN || code == SYS_HALT)
- /* Turn off the watchdog timer. */
- intel_scu_stop();
- return NOTIFY_DONE;
-}
-
-/*
- * Kernel Interfaces
- */
-static const struct file_operations intel_scu_fops = {
- .owner = THIS_MODULE,
- .llseek = no_llseek,
- .write = intel_scu_write,
- .unlocked_ioctl = intel_scu_ioctl,
- .compat_ioctl = compat_ptr_ioctl,
- .open = intel_scu_open,
- .release = intel_scu_release,
-};
-
-static int __init intel_scu_watchdog_init(void)
-{
- int ret;
- u32 __iomem *tmp_addr;
-
- /*
- * We don't really need to check this as the SFI timer get will fail
- * but if we do so we can exit with a clearer reason and no noise.
- *
- * If it isn't an intel MID device then it doesn't have this watchdog
- */
- if (!intel_mid_identify_cpu())
- return -ENODEV;
-
- /* Check boot parameters to verify that their initial values */
- /* are in range. */
- /* Check value of timer_set boot parameter */
- if ((timer_set < MIN_TIME_CYCLE) ||
- (timer_set > MAX_TIME - MIN_TIME_CYCLE)) {
- pr_err("value of timer_set %x (hex) is out of range from %x to %x (hex)\n",
- timer_set, MIN_TIME_CYCLE, MAX_TIME - MIN_TIME_CYCLE);
- return -EINVAL;
- }
-
- /* Check value of timer_margin boot parameter */
- if (check_timer_margin(timer_margin))
- return -EINVAL;
-
- watchdog_device.timer_tbl_ptr = sfi_get_mtmr(sfi_mtimer_num-1);
-
- if (watchdog_device.timer_tbl_ptr == NULL) {
- pr_debug("timer is not available\n");
- return -ENODEV;
- }
- /* make sure the timer exists */
- if (watchdog_device.timer_tbl_ptr->phys_addr == 0) {
- pr_debug("timer %d does not have valid physical memory\n",
- sfi_mtimer_num);
- return -ENODEV;
- }
-
- if (watchdog_device.timer_tbl_ptr->irq == 0) {
- pr_debug("timer %d invalid irq\n", sfi_mtimer_num);
- return -ENODEV;
- }
-
- tmp_addr = ioremap(watchdog_device.timer_tbl_ptr->phys_addr,
- 20);
-
- if (tmp_addr == NULL) {
- pr_debug("timer unable to ioremap\n");
- return -ENOMEM;
- }
-
- watchdog_device.timer_load_count_addr = tmp_addr++;
- watchdog_device.timer_current_value_addr = tmp_addr++;
- watchdog_device.timer_control_addr = tmp_addr++;
- watchdog_device.timer_clear_interrupt_addr = tmp_addr++;
- watchdog_device.timer_interrupt_status_addr = tmp_addr++;
-
- /* Set the default time values in device structure */
-
- watchdog_device.timer_set = timer_set;
- watchdog_device.threshold =
- timer_margin * watchdog_device.timer_tbl_ptr->freq_hz;
- watchdog_device.soft_threshold =
- (watchdog_device.timer_set - timer_margin)
- * watchdog_device.timer_tbl_ptr->freq_hz;
-
-
- watchdog_device.intel_scu_notifier.notifier_call =
- intel_scu_notify_sys;
-
- ret = register_reboot_notifier(&watchdog_device.intel_scu_notifier);
- if (ret) {
- pr_err("cannot register notifier %d)\n", ret);
- goto register_reboot_error;
- }
-
- watchdog_device.miscdev.minor = WATCHDOG_MINOR;
- watchdog_device.miscdev.name = "watchdog";
- watchdog_device.miscdev.fops = &intel_scu_fops;
-
- ret = misc_register(&watchdog_device.miscdev);
- if (ret) {
- pr_err("cannot register miscdev %d err =%d\n",
- WATCHDOG_MINOR, ret);
- goto misc_register_error;
- }
-
- ret = request_irq((unsigned int)watchdog_device.timer_tbl_ptr->irq,
- watchdog_timer_interrupt,
- IRQF_SHARED, "watchdog",
- &watchdog_device.timer_load_count_addr);
- if (ret) {
- pr_err("error requesting irq %d\n", ret);
- goto request_irq_error;
- }
- /* Make sure timer is disabled before returning */
- intel_scu_stop();
- return 0;
-
-/* error cleanup */
-
-request_irq_error:
- misc_deregister(&watchdog_device.miscdev);
-misc_register_error:
- unregister_reboot_notifier(&watchdog_device.intel_scu_notifier);
-register_reboot_error:
- intel_scu_stop();
- iounmap(watchdog_device.timer_load_count_addr);
- return ret;
-}
-late_initcall(intel_scu_watchdog_init);
diff --git a/drivers/watchdog/intel_scu_watchdog.h b/drivers/watchdog/intel_scu_watchdog.h
deleted file mode 100644
index fb12a25ee417..000000000000
--- a/drivers/watchdog/intel_scu_watchdog.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-only */
-/*
- * Intel_SCU 0.2: An Intel SCU IOH Based Watchdog Device
- * for Intel part #(s):
- * - AF82MP20 PCH
- *
- * Copyright (C) 2009-2010 Intel Corporation. All rights reserved.
- */
-
-#ifndef __INTEL_SCU_WATCHDOG_H
-#define __INTEL_SCU_WATCHDOG_H
-
-#define WDT_VER "0.3"
-
-/* minimum time between interrupts */
-#define MIN_TIME_CYCLE 1
-
-/* Time from warning to reboot is 2 seconds */
-#define DEFAULT_SOFT_TO_HARD_MARGIN 2
-
-#define MAX_TIME 170
-
-#define DEFAULT_TIME 5
-
-#define MAX_SOFT_TO_HARD_MARGIN (MAX_TIME-MIN_TIME_CYCLE)
-
-/* Ajustment to clock tick frequency to make timing come out right */
-#define FREQ_ADJUSTMENT 8
-
-struct intel_scu_watchdog_dev {
- ulong driver_open;
- ulong driver_closed;
- u32 timer_started;
- u32 timer_set;
- u32 threshold;
- u32 soft_threshold;
- u32 __iomem *timer_load_count_addr;
- u32 __iomem *timer_current_value_addr;
- u32 __iomem *timer_control_addr;
- u32 __iomem *timer_clear_interrupt_addr;
- u32 __iomem *timer_interrupt_status_addr;
- struct sfi_timer_table_entry *timer_tbl_ptr;
- struct notifier_block intel_scu_notifier;
- struct miscdevice miscdev;
-};
-
-extern int sfi_mtimer_num;
-
-/* extern struct sfi_timer_table_entry *sfi_get_mtmr(int hint); */
-#endif /* __INTEL_SCU_WATCHDOG_H */