1 files changed, 0 insertions, 418 deletions
diff --git a/meta-amdfalconx86/recipes-kernel/amd-wdt/files/amd_wdt.c b/meta-amdfalconx86/recipes-kernel/amd-wdt/files/amd_wdt.c
deleted file mode 100644
index 82329fe3..00000000
--- a/meta-amdfalconx86/recipes-kernel/amd-wdt/files/amd_wdt.c
+++ /dev/null
@@ -1,418 +0,0 @@
-/*****************************************************************************
-*
-* Copyright (c) 2014, Advanced Micro Devices, Inc.
-* All rights reserved.
-*
-* Redistribution and use in source and binary forms, with or without
-* modification, are permitted provided that the following conditions are met:
-*     * Redistributions of source code must retain the above copyright
-*       notice, this list of conditions and the following disclaimer.
-*     * Redistributions in binary form must reproduce the above copyright
-*       notice, this list of conditions and the following disclaimer in the
-*       documentation and/or other materials provided with the distribution.
-*     * Neither the name of Advanced Micro Devices, Inc. nor the names of
-*       its contributors may be used to endorse or promote products derived
-*       from this software without specific prior written permission.
-*
-* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-* DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY
-* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*
-*
-***************************************************************************/
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/types.h>
-#include <linux/watchdog.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <linux/ioport.h>
-#include <linux/platform_device.h>
-#include <linux/io.h>
-
-#include "amd_wdt.h"
-
-/* internal variables */
-static u32 wdtbase_phys;
-static void __iomem *wdtbase;
-static DEFINE_SPINLOCK(wdt_lock);
-static struct pci_dev *amd_wdt_pci;
-
-/* watchdog platform device */
-static struct platform_device *amd_wdt_platform_device;
-
-/* module parameters */
-static int heartbeat = AMD_WDT_DEFAULT_TIMEOUT;
-module_param(heartbeat, int, 0);
-MODULE_PARM_DESC(heartbeat, "Watchdog timeout in frequency units. "
-		 "(default="  __MODULE_STRING(WATCHDOG_HEARTBEAT) ")");
-
-static char frequency[MAX_LENGTH] = "1s";
-module_param_string(frequency, frequency, MAX_LENGTH, 0);
-MODULE_PARM_DESC(frequency, "Watchdog timer frequency units (32us, "
-		 "10ms, 100ms, 1s). (default=1s)");
-
-static bool nowayout = WATCHDOG_NOWAYOUT;
-module_param(nowayout, bool, 0);
-MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started"
-		" (default=" __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
-
-static char action[MAX_LENGTH] = "reboot";
-module_param_string(action, action, MAX_LENGTH, 0);
-MODULE_PARM_DESC(action, "Watchdog action (reboot/shutdown). (default=reboot) ");
-
-/*
- * Watchdog specific functions
- */
-static int amd_wdt_set_timeout(struct watchdog_device *wdt_dev, unsigned int t)
-{
-	unsigned long flags;
-
-	/*
-	 * In ideal cases the limits will be checked by Watchdog core itself,
-	 * but there might be cases when we call this function directly from
-	 * somewhere else. So check the limits here.
-	 */
-	if (t < AMD_WDT_MIN_TIMEOUT)
-		heartbeat = t = AMD_WDT_MIN_TIMEOUT;
-	else if (t > AMD_WDT_MAX_TIMEOUT)
-		heartbeat = t = AMD_WDT_MAX_TIMEOUT;
-
-	/* Write new timeout value to watchdog */
-	spin_lock_irqsave(&wdt_lock, flags);
-	writel(t, AMD_WDT_COUNT(wdtbase));
-	spin_unlock_irqrestore(&wdt_lock, flags);
-
-	wdt_dev->timeout = t;
-
-	return 0;
-}
-
-static int amd_wdt_ping(struct watchdog_device *wdt_dev)
-{
-	u32 val;
-	unsigned long flags;
-
-	/* Trigger watchdog */
-	spin_lock_irqsave(&wdt_lock, flags);
-
-	val = readl(AMD_WDT_CONTROL(wdtbase));
-	val |= AMD_WDT_TRIGGER_BIT;
-	writel(val, AMD_WDT_CONTROL(wdtbase));
-
-	spin_unlock_irqrestore(&wdt_lock, flags);
-
-	return 0;
-}
-
-static int amd_wdt_start(struct watchdog_device *wdt_dev)
-{
-	u32 val;
-	unsigned long flags;
-
-	/* Enable the watchdog timer */
-	spin_lock_irqsave(&wdt_lock, flags);
-
-	val = readl(AMD_WDT_CONTROL(wdtbase));
-	val |= AMD_WDT_START_STOP_BIT;
-	writel(val, AMD_WDT_CONTROL(wdtbase));
-
-	spin_unlock_irqrestore(&wdt_lock, flags);
-
-	/* Trigger the watchdog timer */
-	amd_wdt_ping(wdt_dev);
-
-	return 0;
-}
-
-static int amd_wdt_stop(struct watchdog_device *wdt_dev)
-{
-	u32 val;
-	unsigned long flags;
-
-	/* Disable the watchdog timer */
-	spin_lock_irqsave(&wdt_lock, flags);
-
-	val = readl(AMD_WDT_CONTROL(wdtbase));
-	val &= ~AMD_WDT_START_STOP_BIT; 
-	writel(val, AMD_WDT_CONTROL(wdtbase));
-
-	spin_unlock_irqrestore(&wdt_lock, flags);
-
-	return 0;
-}
-
-static unsigned int amd_wdt_get_timeleft(struct watchdog_device *wdt_dev)
-{
-	u32 val;
-	unsigned long flags;
-
-	spin_lock_irqsave(&wdt_lock, flags);
-	val = readl(AMD_WDT_COUNT(wdtbase));
-	spin_unlock_irqrestore(&wdt_lock, flags);
-
-	/* Mask out the upper 16-bits and return */
-	return val & AMD_WDT_COUNT_MASK;
-}
-
-static unsigned int amd_wdt_status(struct watchdog_device *wdt_dev)
-{
-	return wdt_dev->status;
-}
-
-static struct watchdog_ops amd_wdt_ops = {
-	.owner		= THIS_MODULE,
-	.start		= amd_wdt_start,
-	.stop		= amd_wdt_stop,
-	.ping		= amd_wdt_ping,
-	.status		= amd_wdt_status,
-	.set_timeout	= amd_wdt_set_timeout,
-	.get_timeleft	= amd_wdt_get_timeleft,
-};
-static struct watchdog_info amd_wdt_info = {
-	.options		= WDIOF_SETTIMEOUT |
-				  WDIOF_MAGICCLOSE |
-				  WDIOF_KEEPALIVEPING,
-	.firmware_version	= 0,
-	.identity		= WDT_MODULE_NAME,
-};
-
-static struct watchdog_device amd_wdt_dev = {
-	.info		= &amd_wdt_info,
-	.ops		= &amd_wdt_ops,
-};
-
-/*
- * The PCI Device ID table below is used to identify the platform
- * the driver is supposed to work for. Since this is a platform
- * device, we need a way for us to be able to find the correct
- * platform when the driver gets loaded, otherwise we should
- * bail out.
- */
-static DEFINE_PCI_DEVICE_TABLE(amd_wdt_pci_tbl) = {
-	{ PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_CARRIZO_SMBUS, PCI_ANY_ID,
-	  PCI_ANY_ID, },
-	{ 0, },
-};
-MODULE_DEVICE_TABLE(pci, amd_wdt_pci_tbl);
-
-static unsigned char amd_wdt_setupdevice(void)
-{
-	struct pci_dev *dev = NULL;
-	u32 val;
-
-	/* Match the PCI device */
-	for_each_pci_dev(dev) {
-		if (pci_match_id(amd_wdt_pci_tbl, dev) != NULL) {
-			amd_wdt_pci = dev;
-			break;
-		}
-	}
-
-	if (!amd_wdt_pci)
-		return 0;
-
-	/* Watchdog Base Address starts from ACPI MMIO Base Address + 0xB00 */
-	wdtbase_phys = AMD_ACPI_MMIO_BASE + AMD_WDT_MEM_MAP_OFFSET;
-	if (!request_mem_region_exclusive(wdtbase_phys, AMD_WDT_MEM_MAP_SIZE,
-					  "AMD Watchdog")) {
-		pr_err("mmio address 0x%04x already in use\n", wdtbase_phys);
-		goto exit;
-	}
-
-	wdtbase = ioremap(wdtbase_phys, AMD_WDT_MEM_MAP_SIZE);
-	if (!wdtbase) {
-		pr_err("failed to get wdtbase address\n");
-		goto unreg_mem_region;
-	}
-
-	/* Enable watchdog timer and decode bit */
-	outb(AMD_PM_WATCHDOG_EN_REG, AMD_IO_PM_INDEX_REG);
-	val = inb(AMD_IO_PM_DATA_REG);
-	val |= AMD_PM_WATCHDOG_TIMER_EN;
-	outb(val, AMD_IO_PM_DATA_REG);
-
-	/* Set the watchdog timer resolution */
-	outb(AMD_PM_WATCHDOG_CONFIG_REG, AMD_IO_PM_INDEX_REG);
-	val = inb(AMD_IO_PM_DATA_REG);
-	/* Clear the previous frequency setting, if any */
-	val &= ~AMD_PM_WATCHDOG_CONFIG_MASK;
-
-	/*
-	 * Now set the frequency depending on the module load parameter.
-	 * In case the user passes an invalid argument, we consider the
-	 * frequency to be of 1 second resolution.
-	 */
-	if (strncmp(frequency, "32us", 4) == 0)
-		val |= AMD_PM_WATCHDOG_32USEC_RES;
-	else if (strncmp(frequency, "10ms", 4) == 0)
-		val |= AMD_PM_WATCHDOG_10MSEC_RES;
-	else if (strncmp(frequency, "100ms", 5) == 0)
-		val |= AMD_PM_WATCHDOG_100MSEC_RES;
-	else {
-		val |= AMD_PM_WATCHDOG_1SEC_RES;
-		if (strncmp(frequency, "1s", 2) != 0)
-			strncpy(frequency, "1s", 2);
-	}
-
-	outb(val, AMD_IO_PM_DATA_REG);
-
-	/* Check to see if last reboot was due to watchdog timeout */
-	val = readl(AMD_WDT_CONTROL(wdtbase));
-	if (val & AMD_WDT_FIRED_BIT)
-		amd_wdt_dev.bootstatus |= WDIOF_CARDRESET;
-	else
-		amd_wdt_dev.bootstatus &= ~WDIOF_CARDRESET;
-
-	pr_info("Watchdog reboot %sdetected\n",
-		(val & AMD_WDT_FIRED_BIT) ? "" : "not ");
-
-	/* Clear out the old status */
-	val |= AMD_WDT_FIRED_BIT;
-
-	/*
-	 * Set the watchdog action depending on module load parameter.
-	 *
-	 * If action is specified anything other than reboot or shutdown,
-	 * we default it to reboot.
-	 */
-	if (strncmp(action, "shutdown", 8) == 0)
-		val |= AMD_WDT_ACTION_RESET_BIT;
-	else {
-		val &= ~AMD_WDT_ACTION_RESET_BIT;
-		/* The statement below is required for when the action
-		 * is set anything other than reboot.
-		 */
-		if (strncmp(action, "reboot", 6) != 0)
-			strncpy(action, "reboot", 6);
-	}
-
-	writel(val, AMD_WDT_CONTROL(wdtbase));
-
-	return 1;
-
-unreg_mem_region:
-	release_mem_region(wdtbase_phys, AMD_WDT_MEM_MAP_SIZE);
-exit:
-	return 0;
-}
-
-static int amd_wdt_init(struct platform_device *dev)
-{
-	int ret;
-	u32 val;
-
-	/* Identify our device and initialize watchdog hardware */
-	if (!amd_wdt_setupdevice())
-		return -ENODEV;
-
-	amd_wdt_dev.timeout = heartbeat;
-	amd_wdt_dev.min_timeout = AMD_WDT_MIN_TIMEOUT;
-	amd_wdt_dev.max_timeout = AMD_WDT_MAX_TIMEOUT;
-	watchdog_set_nowayout(&amd_wdt_dev, nowayout);
-
-	/* Make sure watchdog is not running */
-	amd_wdt_stop(&amd_wdt_dev);
-
-	/* Set Watchdog timeout */
-	amd_wdt_set_timeout(&amd_wdt_dev, heartbeat);
-
-	ret = watchdog_register_device(&amd_wdt_dev);
-	if (ret != 0) {
-		pr_err("Watchdog timer: cannot register watchdog device"
-		       " (err=%d)\n", ret);
-		goto exit;
-	}
-
-		pr_info("initialized (0x%p). (timeout=%d units) (frequency=%s) "
-		"(nowayout=%d) (action=%s)\n", wdtbase, heartbeat, frequency,
-		nowayout, action);
-
-	return 0;
-
-exit:
-	iounmap(wdtbase);
-	release_mem_region(wdtbase_phys, AMD_WDT_MEM_MAP_SIZE);
-	return ret;
-}
-
-static void amd_wdt_cleanup(void)
-{
-	/* Stop the timer before we leave */
-	if (!nowayout)
-		amd_wdt_stop(NULL);
-
-	watchdog_unregister_device(&amd_wdt_dev);
-	iounmap(wdtbase);
-	release_mem_region(wdtbase_phys, AMD_WDT_MEM_MAP_SIZE);
-}
-
-static int amd_wdt_remove(struct platform_device *dev)
-{
-	if (wdtbase)
-		amd_wdt_cleanup();
-
-	return 0;
-}
-
-static void amd_wdt_shutdown(struct platform_device *dev)
-{
-	amd_wdt_stop(NULL);
-}
-
-static struct platform_driver amd_wdt_driver = {
-	.probe		= amd_wdt_init,
-	.remove		= amd_wdt_remove,
-	.shutdown	= amd_wdt_shutdown,
-	.driver		= {
-		.owner	= THIS_MODULE,
-		.name	= WDT_MODULE_NAME,
-	},
-};
-
-static int __init amd_wdt_init_module(void)
-{
-	int err;
-
-	pr_info("AMD WatchDog Timer Driver v%s\n", WDT_VERSION);
-
-	err = platform_driver_register(&amd_wdt_driver);
-	if (err)
-		return err;
-
-	amd_wdt_platform_device = platform_device_register_simple(
-					WDT_MODULE_NAME, -1, NULL, 0);
-	if (IS_ERR(amd_wdt_platform_device)) {
-		err = PTR_ERR(amd_wdt_platform_device);
-		goto unreg_platform_driver;
-	}
-
-	return 0;
-
-unreg_platform_driver:
-	platform_driver_unregister(&amd_wdt_driver);
-	return err;
-}
-
-static void __exit amd_wdt_cleanup_module(void)
-{
-	platform_device_unregister(amd_wdt_platform_device);
-	platform_driver_unregister(&amd_wdt_driver);
-	pr_info("AMD Watchdog Module Unloaded\n");
-}
-
-module_init(amd_wdt_init_module);
-module_exit(amd_wdt_cleanup_module);
-
-MODULE_AUTHOR("Arindam Nath <arindam.nath@amd.com>");
-MODULE_DESCRIPTION("Watchdog timer driver for AMD chipsets");
-MODULE_LICENSE("Dual BSD/GPL");