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/openbmc/linux/drivers/power/reset/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
3 bool "Board level reset or power off"
6 or shut it down, by manipulating the main power supply on the board.
8 Say Y here to enable board reset and power off
13 bool "ams AS3722 power-off driver"
14 depends on MFD_AS3722
16 This driver supports turning off board via a ams AS3722 power-off.
20 depends on ARCH_AT91
28 depends on ARCH_AT91
35 tristate "Atmel AT91 SAMA5D2-Compatible shutdown controller driver"
[all …]
/openbmc/docs/designs/
H A Dpower-recovery.md1 # OpenBMC Server Power Recovery
11 Modern computer systems have a feature, automated power-on recovery, which in
13 power to the system. If the system had a black out (i.e. power was completely
14 cut to the system), should it automatically power the system on? Should it leave
16 at before the power loss.
18 There are also instances where the user may not want automatic power recovery to
19 occur. For example, some systems have op-panels, and on these op-panels there
22 situations, the user may wish for the system to not automatically power on the
26 run once the power is restored. For example, IBM requires all LED's be toggled
30 A brownout is another scenario that commonly utilizes automated power-on
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/openbmc/openbmc-test-automation/redfish/extended/
H A Dtest_power_capping.robot2 Documentation Energy scale power capping tests.
6 # PL Power Limit
7 # OCC On Chip Controller
34 Escale System On And PL Enabled
35 [Documentation] Change active power limit with system power on and
36 ... Power limit active.
39 Set DCMI Power Limit And Verify ${max_power}
41 Redfish Power On stack_mode=skip
43 Tool Exist opal-prd
47 ${cmd}= Set Variable /tmp/occtoolp9 -p | grep -e State: -e Sensor:
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/openbmc/phosphor-power/phosphor-power-sequencer/docs/
H A DREADME.md1 # phosphor-power-sequencer
5 The phosphor-power-sequencer application powers the chassis on/off and monitors
6 the power sequencer device.
8 If the chassis power good (pgood) status changes to false unexpectedly, the
9 application uses information from the power sequencer device to determine the
14 The application is a single-threaded C++ executable. It is a 'daemon' process
16 reaches the Ready state and before the chassis is powered on.
18 The application is driven by an optional, system-specific JSON configuration
20 creates a collection of C++ objects. These objects represent the power sequencer
23 ## Power sequencer device
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/openbmc/linux/arch/arm64/boot/dts/apple/
H A Dt600x-pmgr.dtsi1 // SPDX-License-Identifier: GPL-2.0+ OR MIT
3 * PMGR Power domains for the Apple T6001 "M1 Max" SoC
9 DIE_NODE(ps_pms_bridge): power-controller@100 {
10 compatible = "apple,t6000-pmgr-pwrstate", "apple,pmgr-pwrstate";
12 #power-domain-cells = <0>;
13 #reset-cells = <0>;
15 apple,always-on; /* Core device */
18 DIE_NODE(ps_aic): power-controller@108 {
19 compatible = "apple,t6000-pmgr-pwrstate", "apple,pmgr-pwrstate";
21 #power-domain-cells = <0>;
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H A Dt8112-pmgr.dtsi1 // SPDX-License-Identifier: GPL-2.0+ OR MIT
3 * PMGR Power domains for the Apple T8112 "M2" SoC
10 ps_sbr: power-controller@100 {
11 compatible = "apple,t8112-pmgr-pwrstate", "apple,pmgr-pwrstate";
13 #power-domain-cells = <0>;
14 #reset-cells = <0>;
16 apple,always-on; /* Core device */
19 ps_aic: power-controller@108 {
20 compatible = "apple,t8112-pmgr-pwrstate", "apple,pmgr-pwrstate";
22 #power-domain-cells = <0>;
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H A Dt8103-pmgr.dtsi1 // SPDX-License-Identifier: GPL-2.0+ OR MIT
3 * PMGR Power domains for the Apple T8103 "M1" SoC
10 ps_sbr: power-controller@100 {
11 compatible = "apple,t8103-pmgr-pwrstate", "apple,pmgr-pwrstate";
13 #power-domain-cells = <0>;
14 #reset-cells = <0>;
16 apple,always-on; /* Core device */
19 ps_aic: power-controller@108 {
20 compatible = "apple,t8103-pmgr-pwrstate", "apple,pmgr-pwrstate";
22 #power-domain-cells = <0>;
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/openbmc/u-boot/drivers/power/domain/
H A DKconfig1 menu "Power Domain Support"
4 bool "Enable power domain support using Driver Model"
5 depends on DM && OF_CONTROL
7 Enable support for the power domain driver class. Many SoCs allow
8 power to be applied to or removed from portions of the SoC (power
9 domains). This may be used to save power. This API provides the
10 means to control such power management hardware.
13 bool "Enable the BCM6328 power domain driver"
14 depends on POWER_DOMAIN && ARCH_BMIPS
16 Enable support for manipulating BCM6345 power domains via MMIO
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/openbmc/linux/drivers/powercap/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
3 # Generic power capping sysfs interface configuration
9 The power capping sysfs interface allows kernel subsystems to expose power
12 power zones representing parts of the system that can be subject to power
21 depends on PCI
26 depends on X86 && PCI
29 This enables support for the Intel Running Average Power Limit (RAPL)
30 technology via MSR interface, which allows power limits to be enforced
31 and monitored on modern Intel processors (Sandy Bridge and later).
35 controller, CPU core (Power Plane 0), graphics uncore (Power Plane
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/openbmc/openbmc-test-automation/ipmi/
H A Dtest_ipmi_chassis.robot27 IPMI Chassis Status On
28 [Documentation] This test case verifies system power on status
32 Redfish Power On stack_mode=skip quiet=1
34 ${power_status}= Get Lines Containing String ${resp} System Power
35 Should Contain ${power_status} on
38 [Documentation] This test case verifies system power off status
42 Redfish Power Off stack_mode=skip quiet=1
44 ${power_status}= Get Lines Containing String ${resp} System Power
48 [Documentation] Verify host power off operation using external IPMI command.
51 IPMI Power Off
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/openbmc/phosphor-dbus-interfaces/yaml/xyz/openbmc_project/State/
H A DChassis.interface.yaml1 description: Implement to provide the chassis power management
4 - name: RequestedPowerTransition
8 The desired power transition to start on this chassis. This will be
9 preserved across AC power cycles of the BMC.
11 - xyz.openbmc_project.State.Chassis.Error.BMCNotReady
12 - xyz.openbmc_project.Common.Error.Unavailable
14 - name: CurrentPowerState
17 A read-only property describing the current chassis power state. A
21 - name: CurrentPowerStatus
24 A read-only property describing the current chassis power status. This
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/openbmc/openbmc-test-automation/openpower/
H A Dtest_timed_power_on.robot2 Documentation This suite tests Timed Power On(TPO) feature via busctl command
3 ... and verify the power status of the system.
5 ... System can be scheduled to Power ON at a specified time by using this feature.
21 ${CMD_ENABLE_TPO} busctl set-property xyz.openbmc_project.State.ScheduledHostTransition
23 ... ScheduledTransition s "xyz.openbmc_project.State.Host.Transition.On"
25 ${CMD_SET_TPO_TIME} busctl set-property xyz.openbmc_project.State.ScheduledHostTransition
28 ${CMD_GET_TPO_TIME} busctl get-property xyz.openbmc_project.State.ScheduledHostTransition
35 # - Red Hat Enterprise Linux
36 # - SUSE Linux Enterprise Server
37 # Tested on RHEL 8.4.
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/openbmc/openbmc-test-automation/gui/gui_test/operations_menu/
H A Dtest_server_power_operations_sub_menu.robot3 Documentation Test OpenBMC GUI "Server power operations" sub-menu of "Operations".
8 Test Setup Run Keywords Launch Browser And Login GUI AND Navigate to Server Power Operation…
15 ${xpath_server_power_heading} //h1[text()="Server power operations"]
16 ${xpath_enable_onetime_boot_checkbox} //*[contains(@class,'custom-checkbox')]
17 ${xpath_boot_option_select} //*[@id='boot-option']
18 ${xpath_shutdown_button} //*[@data-test-id='serverPowerOperations-button-shutDown…
19 ${xpath_reboot_button} //*[@data-test-id='serverPowerOperations-button-reboot']
20 ${xpath_poweron_button} //*[@data-test-id='serverPowerOperations-button-powerOn']
22 ${xpath_shutdown_orderly_radio} //*[@data-test-id='serverPowerOperations-radio-shutdownO…
23 ${xpath_shutdown_immediate_radio} //*[@data-test-id='serverPowerOperations-radio-shutdownI…
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/openbmc/linux/drivers/mfd/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
17 depends on PCI && (X86_32 || (X86 && COMPILE_TEST))
18 depends on !UML
25 depends on ARCH_INTEL_SOCFPGA && SPI_MASTER=y && OF
32 power supply alarms (hwmon).
36 depends on ARCH_INTEL_SOCFPGA && OF
45 tristate "Active-semi ACT8945A"
48 depends on I2C && OF
50 Support for the ACT8945A PMIC from Active-semi. This device
51 features three step-down DC/DC converters and four low-dropout
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/openbmc/linux/drivers/pinctrl/qcom/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
6 depends on GPIOLIB
8 depends on OF
21 depends on OF && SPMI
37 depends on OF
56 depends on GPIOLIB
59 Qualcomm Technologies Inc LPASS (Low Power Audio SubSystem) LPI
60 (Low Power Island) found on the Qualcomm Technologies Inc SoCs.
64 depends on ARM64 || COMPILE_TEST
65 depends on PINCTRL_LPASS_LPI
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/openbmc/linux/drivers/regulator/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
15 output in order to save power and prolong battery life. This applies
38 managed regulators and simple non-configurable regulators.
55 control power supplies for such devices.
61 depends on I2C
65 They provide two I2C-controlled DC/DC step-down converters with
69 tristate "Marvell 88PM800 Power regulators"
70 depends on MFD_88PM800
79 tristate "Marvell 88PM8607 Power regulators"
80 depends on MFD_88PM860X=y
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/openbmc/docs/architecture/
H A Dopenbmc-systemd.md5 which processes are started. There is a lot of documentation on systemd and to
9 [Unit](https://www.freedesktop.org/software/systemd/man/systemd.unit.html#) -
11 [Service](https://www.freedesktop.org/software/systemd/man/systemd.service.html) -
13 [Target](https://www.freedesktop.org/software/systemd/man/systemd.target.html) -
19 On an OpenBMC system, you can go to /lib/systemd/system/ and see all of the
20 systemd units on the system. You can easily cat these files to start looking at
27 ---
29 ## Initial Power
31 When an OpenBMC system first has power applied, it starts the "default.target"
32 unless an alternate target is specified on the kernel command line. In Phosphor
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/openbmc/openbmc-test-automation/gui/test/server_control/
H A Dtest_obmc_gui_server_power_operations.robot3 Documentation Test OpenBMC GUI "Server power operation" sub-menu of
13 ${xpath_power_indicator_bar} //*[@id='power-indicator-bar']
16 ${xpath_power_on_button} //button[contains(text(), "Power on")]
17 ${xpath_tpm_toggle_switch} //label[@for="toggle__switch-round"]
18 ${xpath_select_boot_override} //select[@id="boot-selected"]
19 ${xpath_select_one_time_boot} //label[@id="one-time-label"]
23 Verify System State At Power Off
24 [Documentation] Verify system state at power off.
31 Verify BMC IP In Server Power Operation Page
32 [Documentation] Verify BMC IP in server power operation page.
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/openbmc/linux/Documentation/driver-api/thermal/
H A Dpower_allocator.rst2 Power allocator governor tunables
6 -----------
10 1. "switch on" trip point: temperature above which the governor
15 "switch on" trip point. This the target temperature the governor
20 --------------
22 The power allocator governor implements a
23 Proportional-Integral-Derivative controller (PID controller) with
24 temperature as the control input and power as the controlled output:
29 - e = desired_temperature - current_temperature
30 - err_integral is the sum of previous errors
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/openbmc/openbmc/meta-facebook/meta-yosemite4/recipes-phosphor/state/phosphor-state-manager/
H A Dchassis-poweron6 # shellcheck source=meta-facebook/meta-yosemite4/recipes-phosphor/state/phosphor-state-manager/powe…
7 source /usr/libexec/phosphor-state-manager/power-cmd
8 # shellcheck source=meta-facebook/meta-yosemite4/recipes-yosemite4/plat-tool/files/yosemite4-common…
9 source /usr/libexec/yosemite4-common-functions
11 #IO 0:7 input port for showing slot 1:8 power status
12 #IO 8:16 output port for controlling slot 1:8 power status
15 IO_EXP_SLOT_PWR_STATUS=$((CHASSIS_ID - 1))
19 GPIOCHIP_IO_EXP_SLOT_PWR_CTRL=$(basename "/sys/bus/i2c/devices/$SPIDER_BOARD_IO_EXP_BUS_NUM-00$IO_E…
20 …TATUS_CTRL=$(basename "/sys/bus/i2c/devices/$MANAGEMENT_BOARD_IO_EXP_BUS_NUM-00$IO_EXP_SLED_PWR_CT…
21 GPIOCHIP_IO_EXP_HOST_POWER_STATUS=$(basename "/sys/bus/i2c/devices/$IO_EXP_SLOT_PWR_STATUS-0023/"*g…
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H A Dhost-poweron4 # shellcheck source=meta-facebook/meta-yosemite4/recipes-phosphor/state/phosphor-state-manager/powe…
5 source /usr/libexec/phosphor-state-manager/power-cmd
7 CHASSIS_BUS=$(($1 - 1))
9 GPIOCHIP_IO_EXP_HOST_POWER_STATUS=$(basename "/sys/bus/i2c/devices/$CHASSIS_BUS-0023/"*gpiochip*)
24 echo "Already host$1 power on."
28 # Check if PRSNT_SB_SLOT{1~8}_N is exist, if not exist, continues power-on process
29 if [ ! -f "/tmp/gpio/PRSNT_SB_SLOT${1}_N" ]; then
30 echo "PRSNT_SB_SLOT${1}_N is not exist, continue power-on process"
33 if [ "$slot_presence" -ne 0 ]; then
34 echo "Host$1 is not present, skip power-on process"
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/openbmc/linux/drivers/input/misc/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
18 depends on MFD_88PM860X
21 reporting power button status.
28 depends on MFD_88PM800
31 reporting power button status.
38 depends on AB8500_CORE
40 Say Y here to use the PowerOn Key for ST-Ericsson's AB8500
41 Mix-Sig PMIC.
44 will be called ab8500-ponkey.
58 depends on INPUT_AD714X && I2C
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/openbmc/openbmc/meta-ibm/recipes-phosphor/dbus/power-supply-policy/
H A Dpower-supply-policy.yaml1 # Machine power supply policy for PDM.
3 # Create an error if a power supply is removed while the system is powered on
5 - name: power supply0
9 - meta: POWER SUPPLY
12 - name: power supply1
16 - meta: POWER SUPPLY
19 - name: power supplies
21 'The machine has two power supplies to monitor.'
25 - meta: POWER SUPPLY
27 - meta: POWER SUPPLY
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/openbmc/linux/drivers/soc/qcom/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
9 depends on ARCH_QCOM || COMPILE_TEST
10 depends on MAILBOX
11 depends on COMMON_CLK && PM
15 the low-power state for resources related to the remoteproc
16 subsystems as well as controlling the debug clocks exposed by the Always On
21 depends on ARCH_QCOM || COMPILE_TEST
22 depends on OF_RESERVED_MEM
26 resource on a RPM-hardened platform must use this database to get
30 tristate "QCOM Core Power Reduction (CPR) support"
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/openbmc/openbmc-test-automation/xcat/
H A Dtest_power_operation.robot17 Verify Power On Via XCAT
18 [Documentation] Power on system via XCAT and verify using REST.
21 Execute Command On XCAT rpower on
25 Verify Power Off Via XCAT
26 [Documentation] Power off system via XCAT and verify using REST.
29 Execute Command On XCAT rpower off
37 ${xcat_resp}= Execute Command On XCAT rpower bmcstate
42 Verify Soft Power Off Followed With Power On
43 [Documentation] Verify soft power off system followed with power on.
47 Execute Command On XCAT rpower softoff
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