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| 1 | +// SPDX-License-Identifier: GPL-2.0-or-later |
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1 | 2 | /* |
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2 | 3 | * Watchdog timer for PowerPC Book-E systems |
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3 | 4 | * |
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.. | .. |
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5 | 6 | * Maintainer: Kumar Gala <galak@kernel.crashing.org> |
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6 | 7 | * |
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7 | 8 | * Copyright 2005, 2008, 2010-2011 Freescale Semiconductor Inc. |
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8 | | - * |
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9 | | - * This program is free software; you can redistribute it and/or modify it |
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10 | | - * under the terms of the GNU General Public License as published by the |
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11 | | - * Free Software Foundation; either version 2 of the License, or (at your |
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12 | | - * option) any later version. |
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13 | 9 | */ |
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14 | 10 | |
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15 | 11 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
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.. | .. |
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25 | 21 | /* If the kernel parameter wdt=1, the watchdog will be enabled at boot. |
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26 | 22 | * Also, the wdt_period sets the watchdog timer period timeout. |
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27 | 23 | * For E500 cpus the wdt_period sets which bit changing from 0->1 will |
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28 | | - * trigger a watchog timeout. This watchdog timeout will occur 3 times, the |
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| 24 | + * trigger a watchdog timeout. This watchdog timeout will occur 3 times, the |
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29 | 25 | * first time nothing will happen, the second time a watchdog exception will |
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30 | 26 | * occur, and the final time the board will reset. |
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31 | 27 | */ |
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.. | .. |
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43 | 39 | module_param(booke_wdt_enabled, bool, 0); |
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44 | 40 | static int booke_wdt_period = CONFIG_BOOKE_WDT_DEFAULT_TIMEOUT; |
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45 | 41 | module_param(booke_wdt_period, int, 0); |
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| 42 | +static bool nowayout = WATCHDOG_NOWAYOUT; |
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| 43 | +module_param(nowayout, bool, 0); |
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| 44 | +MODULE_PARM_DESC(nowayout, |
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| 45 | + "Watchdog cannot be stopped once started (default=" |
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| 46 | + __MODULE_STRING(WATCHDOG_NOWAYOUT) ")"); |
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46 | 47 | |
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47 | 48 | #ifdef CONFIG_PPC_FSL_BOOK3E |
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48 | 49 | |
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.. | .. |
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219 | 220 | static int __init booke_wdt_init(void) |
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220 | 221 | { |
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221 | 222 | int ret = 0; |
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222 | | - bool nowayout = WATCHDOG_NOWAYOUT; |
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223 | 223 | |
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224 | 224 | pr_info("powerpc book-e watchdog driver loaded\n"); |
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225 | 225 | booke_wdt_info.firmware_version = cur_cpu_spec->pvr_value; |
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