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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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0b0408745e
LPDDR memories can only handle up to 400 uncontrolled power off. Ensure the proper power off sequence is used before shutting down the platform. Cc: <stable@vger.kernel.org> # 4.4+ Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Sebastian Reichel <sre@kernel.org>
223 lines
6.0 KiB
Plaintext
223 lines
6.0 KiB
Plaintext
menuconfig POWER_RESET
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bool "Board level reset or power off"
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help
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Provides a number of drivers which either reset a complete board
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or shut it down, by manipulating the main power supply on the board.
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Say Y here to enable board reset and power off
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if POWER_RESET
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config POWER_RESET_AS3722
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bool "ams AS3722 power-off driver"
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depends on MFD_AS3722
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help
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This driver supports turning off board via a ams AS3722 power-off.
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config POWER_RESET_AT91_POWEROFF
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tristate "Atmel AT91 poweroff driver"
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depends on ARCH_AT91
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default SOC_AT91SAM9 || SOC_SAMA5
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help
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This driver supports poweroff for Atmel AT91SAM9 and SAMA5
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SoCs
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config POWER_RESET_AT91_RESET
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tristate "Atmel AT91 reset driver"
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depends on ARCH_AT91
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default SOC_AT91SAM9 || SOC_SAMA5
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help
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This driver supports restart for Atmel AT91SAM9 and SAMA5
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SoCs
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config POWER_RESET_AT91_SAMA5D2_SHDWC
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tristate "Atmel AT91 SAMA5D2-Compatible shutdown controller driver"
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depends on ARCH_AT91
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default SOC_SAMA5
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help
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This driver supports the alternate shutdown controller for some Atmel
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SAMA5 SoCs. It is present for example on SAMA5D2 SoC.
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config POWER_RESET_AXXIA
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bool "LSI Axxia reset driver"
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depends on ARCH_AXXIA
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help
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This driver supports restart for Axxia SoC.
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Say Y if you have an Axxia family SoC.
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config POWER_RESET_BRCMKONA
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bool "Broadcom Kona reset driver"
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depends on ARM || COMPILE_TEST
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default ARCH_BCM_MOBILE
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help
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This driver provides restart support for Broadcom Kona chips.
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Say Y here if you have a Broadcom Kona-based board and you wish
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to have restart support.
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config POWER_RESET_BRCMSTB
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bool "Broadcom STB reset driver"
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depends on ARM || MIPS || COMPILE_TEST
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depends on MFD_SYSCON
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default ARCH_BRCMSTB
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help
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This driver provides restart support for Broadcom STB boards.
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Say Y here if you have a Broadcom STB board and you wish
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to have restart support.
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config POWER_RESET_GPIO
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bool "GPIO power-off driver"
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depends on OF_GPIO
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help
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This driver supports turning off your board via a GPIO line.
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If your board needs a GPIO high/low to power down, say Y and
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create a binding in your devicetree.
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config POWER_RESET_GPIO_RESTART
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bool "GPIO restart driver"
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depends on OF_GPIO
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help
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This driver supports restarting your board via a GPIO line.
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If your board needs a GPIO high/low to restart, say Y and
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create a binding in your devicetree.
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config POWER_RESET_HISI
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bool "Hisilicon power-off driver"
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depends on ARCH_HISI
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help
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Reboot support for Hisilicon boards.
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config POWER_RESET_IMX
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bool "IMX6 power-off driver"
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depends on POWER_RESET && SOC_IMX6
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help
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This driver support power off external PMIC by PMIC_ON_REQ on i.mx6
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boards.If you want to use other pin to control external power,please
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say N here or disable in dts to make sure pm_power_off never be
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overwrote wrongly by this driver.
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config POWER_RESET_MSM
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bool "Qualcomm MSM power-off driver"
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depends on ARCH_QCOM
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help
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Power off and restart support for Qualcomm boards.
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config POWER_RESET_PIIX4_POWEROFF
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tristate "Intel PIIX4 power-off driver"
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depends on PCI
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depends on MIPS || COMPILE_TEST
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help
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This driver supports powering off a system using the Intel PIIX4
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southbridge, for example the MIPS Malta development board. The
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southbridge SOff state is entered in response to a request to
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power off the system.
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config POWER_RESET_LTC2952
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bool "LTC2952 PowerPath power-off driver"
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depends on OF_GPIO
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help
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This driver supports an external powerdown trigger and board power
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down via the LTC2952. Bindings are made in the device tree.
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config POWER_RESET_QNAP
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bool "QNAP power-off driver"
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depends on OF_GPIO && PLAT_ORION
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help
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This driver supports turning off QNAP NAS devices by sending
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commands to the microcontroller which controls the main power.
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Say Y if you have a QNAP NAS.
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config POWER_RESET_RESTART
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bool "Restart power-off driver"
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help
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Some boards don't actually have the ability to power off.
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Instead they restart, and u-boot holds the SoC until the
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user presses a key. u-boot then boots into Linux.
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config POWER_RESET_ST
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bool "ST restart driver"
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depends on ARCH_STI
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help
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Reset support for STMicroelectronics boards.
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config POWER_RESET_VERSATILE
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bool "ARM Versatile family reboot driver"
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depends on ARM
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depends on MFD_SYSCON
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depends on OF
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help
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Power off and restart support for ARM Versatile family of
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reference boards.
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config POWER_RESET_VEXPRESS
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bool "ARM Versatile Express power-off and reset driver"
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depends on ARM || ARM64
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depends on VEXPRESS_CONFIG
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help
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Power off and reset support for the ARM Ltd. Versatile
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Express boards.
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config POWER_RESET_XGENE
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bool "APM SoC X-Gene reset driver"
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depends on ARM64
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help
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Reboot support for the APM SoC X-Gene Eval boards.
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config POWER_RESET_KEYSTONE
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bool "Keystone reset driver"
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depends on ARCH_KEYSTONE || COMPILE_TEST
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depends on HAS_IOMEM
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select MFD_SYSCON
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help
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Reboot support for the KEYSTONE SoCs.
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config POWER_RESET_SYSCON
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bool "Generic SYSCON regmap reset driver"
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depends on OF
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depends on HAS_IOMEM
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select MFD_SYSCON
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help
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Reboot support for generic SYSCON mapped register reset.
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config POWER_RESET_SYSCON_POWEROFF
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bool "Generic SYSCON regmap poweroff driver"
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depends on OF
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depends on HAS_IOMEM
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select MFD_SYSCON
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help
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Poweroff support for generic SYSCON mapped register poweroff.
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config POWER_RESET_RMOBILE
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tristate "Renesas R-Mobile reset driver"
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depends on ARCH_RMOBILE || COMPILE_TEST
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depends on HAS_IOMEM
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help
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Reboot support for Renesas R-Mobile and SH-Mobile SoCs.
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config POWER_RESET_ZX
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tristate "ZTE SoCs reset driver"
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depends on ARCH_ZX || COMPILE_TEST
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depends on HAS_IOMEM
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help
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Reboot support for ZTE SoCs.
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config REBOOT_MODE
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tristate
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config SYSCON_REBOOT_MODE
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tristate "Generic SYSCON regmap reboot mode driver"
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depends on OF
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depends on MFD_SYSCON
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select REBOOT_MODE
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help
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Say y here will enable reboot mode driver. This will
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get reboot mode arguments and store it in SYSCON mapped
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register, then the bootloader can read it to take different
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action according to the mode.
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endif
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