| /kernel/linux/linux-6.6/Documentation/ABI/stable/ |
| D | sysfs-driver-firmware-zynqmp | 1 What: /sys/devices/platform/firmware\:zynqmp-firmware/ggs*
11 The register is reset during system or power-on
17 # cat /sys/devices/platform/firmware\:zynqmp-firmware/ggs0
18 # echo <value> > /sys/devices/platform/firmware\:zynqmp-firmware/ggs0
22 # cat /sys/devices/platform/firmware\:zynqmp-firmware/ggs0
23 # echo 0x1234ABCD > /sys/devices/platform/firmware\:zynqmp-firmware/ggs0
27 What: /sys/devices/platform/firmware\:zynqmp-firmware/pggs*
38 This register is only reset by the power-on reset
46 # cat /sys/devices/platform/firmware\:zynqmp-firmware/pggs0
47 # echo <value> > /sys/devices/platform/firmware\:zynqmp-firmware/pggs0
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| /kernel/linux/linux-6.6/drivers/watchdog/ |
| D | smsc37b787_wdt.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * SMsC 37B787 Watchdog Timer driver for Linux 2.6.x.x
9 * any of this software. This material is provided "AS-IS" in
12 * (C) Copyright 2003-2006 Sven Anders <anders@anduras.de>
15 * 2003 - Created version 1.0 for Linux 2.4.x.
16 * 2006 - Ported to Linux 2.6, added nowayout and MAGICCLOSE
21 * A Watchdog Timer (WDT) is a hardware circuit that can
26 * via the /dev/watchdog special device file that userspace is
28 * occurs, the driver will usually tell the hardware watchdog
29 * that everything is in order, and that the watchdog should wait
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| D | starfive-wdt.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Starfive Watchdog driver
15 #include <linux/watchdog.h>
17 /* JH7100 Watchdog register define */
31 /* JH7110 Watchdog register define */
35 * [0]: reset enable;
36 * [1]: interrupt enable && watchdog enable
56 #define STARFIVE_WDT_JH7100_INTCLR_AVA_SHIFT 1 /* Watchdog can clear interrupt when 0 */
74 MODULE_PARM_DESC(heartbeat, "Watchdog heartbeat in seconds. (default="
77 "Watchdog is started at boot time if set to 1, default="
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| D | pc87413_wdt.c | 1 // SPDX-License-Identifier: GPL-2.0+
3 * NS pc87413-wdt Watchdog Timer driver for Linux 2.6.x.x
12 * This material is provided "AS-IS" and at no charge.
22 #include <linux/watchdog.h>
42 #define DPFX MODNAME " - DEBUG: "
48 #define WDCTL 0x10 /* Watchdog-Timer-Control-Register */
49 #define WDTO 0x11 /* Watchdog timeout register */
50 #define WDCFG 0x12 /* Watchdog config register */
55 static int swc_base_addr = -1;
66 /* -- Low level function ----------------------------------------*/
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| D | at91sam9_wdt.h | 1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * drivers/watchdog/at91sam9_wdt.h
9 * Watchdog Timer (WDT) - System peripherals regsters.
20 #define AT91_WDT_CR 0x00 /* Watchdog Control Register */
24 #define AT91_WDT_MR 0x04 /* Watchdog Mode Register */
29 #define AT91_WDT_WDFIEN BIT(12) /* Fault Interrupt Enable */
30 #define AT91_SAM9X60_WDDIS BIT(12) /* Watchdog Disable */
33 #define AT91_WDT_WDDIS BIT(15) /* Watchdog Disable */
39 #define AT91_WDT_SR 0x08 /* Watchdog Status Register */
40 #define AT91_WDT_WDUNF BIT(0) /* Watchdog Underflow */
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| D | sa1100_wdt.c | 1 // SPDX-License-Identifier: GPL-2.0+
3 * Watchdog driver for the SA11x0/PXA2xx
10 * "AS-IS" and at no charge.
27 #include <linux/watchdog.h>
40 #define REG_OWER 0x0018 /* OS timer Watch-dog Enable Reg. */
41 #define REG_OIER 0x001C /* OS timer Interrupt Enable Reg. */
48 #define OWER_WME (1 << 0) /* Watchdog Match Enable */
50 #define OIER_E3 (1 << 3) /* Interrupt enable channel 3 */
51 #define OIER_E2 (1 << 2) /* Interrupt enable channel 2 */
52 #define OIER_E1 (1 << 1) /* Interrupt enable channel 1 */
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| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
4 # Watchdog device configuration
7 menuconfig WATCHDOG config
8 bool "Watchdog Timer Support"
11 character special file /dev/watchdog with major number 10 and minor
12 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
16 on-line as fast as possible after a lock-up. There's both a watchdog
18 reboot the machine) and a driver for hardware watchdog boards, which
21 <file:Documentation/watchdog/watchdog-api.rst> in the kernel source.
23 The watchdog is usually used together with the watchdog daemon
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| D | via_wdt.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * VIA Chipset Watchdog Driver
10 * Caveat: PnP must be enabled in BIOS to allow full access to watchdog
11 * control registers. If not, the watchdog must be configured in BIOS manually.
22 #include <linux/watchdog.h>
26 #define VIA_WDT_CONF 0xec /* watchdog enable state */
29 #define VIA_WDT_CONF_ENABLE 0x01 /* 1: enable watchdog */
30 #define VIA_WDT_CONF_MMIO 0x02 /* 1: enable watchdog MMIO */
33 * The MMIO region contains the watchdog control register and the
42 #define VIA_WDT_FIRED 0x02 /* 1: restarted by expired watchdog */
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| D | cadence_wdt.c | 1 // SPDX-License-Identifier: GPL-2.0+
3 * Cadence WDT driver - Used by Xilinx Zynq
5 * Copyright (C) 2010 - 2014 Xilinx, Inc.
18 #include <linux/watchdog.h>
21 /* Supports 1 - 516 sec */
54 "Watchdog time in seconds. (default="
59 "Watchdog cannot be stopped once started (default="
63 * struct cdns_wdt - Watchdog device structure
70 * @cdns_wdt_device: watchdog device structure
72 * Structure containing parameters specific to cadence watchdog.
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| D | imx2_wdt.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Watchdog driver for IMX2 and later processors
11 * NOTE: MX1 has a slightly different Watchdog than MX2 and later:
14 * ---- -----
15 * Registers: 32-bit 16-bit
17 * Need to enable clk: No Yes
32 #include <linux/watchdog.h>
34 #define DRIVER_NAME "imx2-wdt"
37 #define IMX2_WDT_WCR_WT (0xFF << 8) /* -> Watchdog Timeout Field */
38 #define IMX2_WDT_WCR_WDW BIT(7) /* -> Watchdog disable for WAIT */
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| /kernel/linux/linux-5.10/drivers/watchdog/ |
| D | smsc37b787_wdt.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * SMsC 37B787 Watchdog Timer driver for Linux 2.6.x.x
9 * any of this software. This material is provided "AS-IS" in
12 * (C) Copyright 2003-2006 Sven Anders <anders@anduras.de>
15 * 2003 - Created version 1.0 for Linux 2.4.x.
16 * 2006 - Ported to Linux 2.6, added nowayout and MAGICCLOSE
21 * A Watchdog Timer (WDT) is a hardware circuit that can
26 * via the /dev/watchdog special device file that userspace is
28 * occurs, the driver will usually tell the hardware watchdog
29 * that everything is in order, and that the watchdog should wait
[all …]
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| D | pc87413_wdt.c | 1 // SPDX-License-Identifier: GPL-2.0+
3 * NS pc87413-wdt Watchdog Timer driver for Linux 2.6.x.x
12 * This material is provided "AS-IS" and at no charge.
22 #include <linux/watchdog.h>
42 #define DPFX MODNAME " - DEBUG: "
48 #define WDCTL 0x10 /* Watchdog-Timer-Control-Register */
49 #define WDTO 0x11 /* Watchdog timeout register */
50 #define WDCFG 0x12 /* Watchdog config register */
55 static int swc_base_addr = -1;
66 /* -- Low level function ----------------------------------------*/
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| D | at91sam9_wdt.h | 1 /* SPDX-License-Identifier: GPL-2.0+ */
3 * drivers/watchdog/at91sam9_wdt.h
9 * Watchdog Timer (WDT) - System peripherals regsters.
20 #define AT91_WDT_CR 0x00 /* Watchdog Control Register */
24 #define AT91_WDT_MR 0x04 /* Watchdog Mode Register */
29 #define AT91_WDT_WDFIEN BIT(12) /* Fault Interrupt Enable */
30 #define AT91_SAM9X60_WDDIS BIT(12) /* Watchdog Disable */
33 #define AT91_WDT_WDDIS BIT(15) /* Watchdog Disable */
39 #define AT91_WDT_SR 0x08 /* Watchdog Status Register */
40 #define AT91_WDT_WDUNF BIT(0) /* Watchdog Underflow */
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| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
4 # Watchdog device configuration
7 menuconfig WATCHDOG config
8 bool "Watchdog Timer Support"
11 character special file /dev/watchdog with major number 10 and minor
12 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
16 on-line as fast as possible after a lock-up. There's both a watchdog
18 reboot the machine) and a driver for hardware watchdog boards, which
21 <file:Documentation/watchdog/watchdog-api.rst> in the kernel source.
23 The watchdog is usually used together with the watchdog daemon
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| D | via_wdt.c | 1 // SPDX-License-Identifier: GPL-2.0-only
3 * VIA Chipset Watchdog Driver
10 * Caveat: PnP must be enabled in BIOS to allow full access to watchdog
11 * control registers. If not, the watchdog must be configured in BIOS manually.
22 #include <linux/watchdog.h>
26 #define VIA_WDT_CONF 0xec /* watchdog enable state */
29 #define VIA_WDT_CONF_ENABLE 0x01 /* 1: enable watchdog */
30 #define VIA_WDT_CONF_MMIO 0x02 /* 1: enable watchdog MMIO */
33 * The MMIO region contains the watchdog control register and the
42 #define VIA_WDT_FIRED 0x02 /* 1: restarted by expired watchdog */
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| D | cadence_wdt.c | 1 // SPDX-License-Identifier: GPL-2.0+
3 * Cadence WDT driver - Used by Xilinx Zynq
5 * Copyright (C) 2010 - 2014 Xilinx, Inc.
18 #include <linux/watchdog.h>
21 /* Supports 1 - 516 sec */
54 "Watchdog time in seconds. (default="
59 "Watchdog cannot be stopped once started (default="
63 * struct cdns_wdt - Watchdog device structure
70 * @cdns_wdt_device: watchdog device structure
72 * Structure containing parameters specific to cadence watchdog.
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| D | imx2_wdt.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Watchdog driver for IMX2 and later processors
11 * NOTE: MX1 has a slightly different Watchdog than MX2 and later:
14 * ---- -----
15 * Registers: 32-bit 16-bit
17 * Need to enable clk: No Yes
32 #include <linux/watchdog.h>
34 #define DRIVER_NAME "imx2-wdt"
37 #define IMX2_WDT_WCR_WT (0xFF << 8) /* -> Watchdog Timeout Field */
38 #define IMX2_WDT_WCR_WDA BIT(5) /* -> External Reset WDOG_B */
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| D | coh901327_wdt.c | 1 // SPDX-License-Identifier: GPL-2.0
5 * Copyright (C) 2008-2009 ST-Ericsson AB
6 * Watchdog driver for the ST-Ericsson AB COH 901 327 IP core
12 #include <linux/watchdog.h>
28 /* WDOG_FEED Register 32bit (-/W) */
34 /* WDOG_DISABLE1 Register 32bit (-/W) */
47 /* WDOG_COUNT Register 32bit (R/-) */
56 /* WDOG_RESTART Register 32bit (-/W) */
105 /* Enable the watchdog interrupt */ in coh901327_enable()
107 /* Activate the watchdog timer */ in coh901327_enable()
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| D | bd70528_wdt.c | 1 // SPDX-License-Identifier: GPL-2.0
3 // ROHM BD70528MWV watchdog driver
7 #include <linux/mfd/rohm-bd70528.h>
12 #include <linux/watchdog.h>
18 #define WDT_MAX_MS ((2 * 60 * 60 - 1) * 1000)
33 * bd70528_wdt_set - arm or disarm watchdog timer
36 * @enable: new state of WDT. zero to disable, non zero to enable
43 int bd70528_wdt_set(struct rohm_regmap_dev *data, int enable, int *old_state) in bd70528_wdt_set() argument
52 ret = regmap_read(bd70528->chip.regmap, BD70528_REG_WDT_CTRL, &tmp); in bd70528_wdt_set()
63 if ((!enable) == (!(*old_state & BD70528_WDT_STATE_BIT))) in bd70528_wdt_set()
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| D | f71808e_wdt.c | 1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Copyright (C) 2007-2009 Hans de Goede <hdegoede@redhat.com> *
22 #include <linux/watchdog.h>
26 #define SIO_F71808FG_LD_WDT 0x07 /* Watchdog timer logical device */
27 #define SIO_UNLOCK_KEY 0x87 /* Key to enable Super-I/O */
28 #define SIO_LOCK_KEY 0xAA /* Key to disable Super-I/O */
36 #define SIO_F81866_REG_PORT_SEL 0x27 /* F81866 Multi-Function Register */
41 #define SIO_F81866_REG_GPIO1 0x2c /* F81866 GPIO1 Enable Register */
42 #define SIO_REG_ENABLE 0x30 /* Logical device enable */
76 watchdog signal */
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| /kernel/linux/linux-6.6/Documentation/devicetree/bindings/mfd/ |
| D | rohm,bd9576-pmic.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/mfd/rohm,bd9576-pmic.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Matti Vaittinen <mazziesaccount@gmail.com>
14 powering the R-Car series processors.
16 monitoring. A watchdog logic with slow ping/windowed modes is also included.
21 - rohm,bd9576
22 - rohm,bd9573
32 rohm,vout1-en-low:
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/watchdog/ |
| D | atmel-sama5d4-wdt.txt | 1 * Atmel SAMA5D4 Watchdog Timer (WDT) Controller
4 - compatible: "atmel,sama5d4-wdt" or "microchip,sam9x60-wdt"
5 - reg: base physical address and length of memory mapped region.
8 - timeout-sec: watchdog timeout value (in seconds).
9 - interrupts: interrupt number to the CPU.
10 - atmel,watchdog-type: should be "hardware" or "software".
11 "hardware": enable watchdog fault reset. A watchdog fault triggers
12 watchdog reset.
13 "software": enable watchdog fault interrupt. A watchdog fault asserts
14 watchdog interrupt.
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| /kernel/linux/linux-6.6/Documentation/devicetree/bindings/watchdog/ |
| D | atmel,sama5d4-wdt.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/watchdog/atmel,sama5d4-wdt.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Atmel SAMA5D4 Watchdog Timer (WDT) Controller
10 - Eugen Hristev <eugen.hristev@microchip.com>
13 - $ref: watchdog.yaml#
18 - atmel,sama5d4-wdt
19 - microchip,sam9x60-wdt
20 - microchip,sama7g5-wdt
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| D | xlnx,xps-timebase-wdt.yaml | 1 # SPDX-License-Identifier: GPL-2.0-or-later OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/watchdog/xlnx,xps-timebase-wdt.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Xilinx AXI/PLB softcore and window Watchdog Timer
10 - Shubhrajyoti Datta <shubhrajyoti.datta@amd.com>
11 - Srinivas Neeli <srinivas.neeli@amd.com>
14 The Timebase watchdog timer(WDT) is a free-running 32 bit counter.
15 WDT uses a dual-expiration architecture. After one expiration of
22 - $ref: watchdog.yaml#
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| /kernel/linux/linux-5.10/tools/testing/selftests/watchdog/ |
| D | watchdog-test.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Watchdog Driver Test Program
16 #include <linux/watchdog.h>
26 {"enable", no_argument, NULL, 'e'},
41 * the PC Watchdog card to reset its internal timer so it doesn't trigger
55 * The main program. Run the program with "-d" to disable the card,
56 * or "-e" to enable the card.
65 printf("\nStopping watchdog ticks failed (%d)...\n", errno); in term()
67 printf("\nStopping watchdog ticks...\n"); in term()
74 printf(" -f, --file\t\tOpen watchdog device file\n"); in usage()
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