menuconfig POWER_RESET bool "Board level reset or power off" help Provides a number of drivers which either reset a complete board or shut it down, by manipulating the main power supply on the board. Say Y here to enable board reset and power off config POWER_RESET_GPIO bool "GPIO power-off driver" depends on OF_GPIO && POWER_RESET help This driver supports turning off your board via a GPIO line. If your board needs a GPIO high/low to power down, say Y and create a binding in your devicetree. config POWER_RESET_MSM bool "Qualcomm MSM power-off driver" depends on POWER_RESET && ARCH_MSM help Power off and restart support for Qualcomm boards. config MSM_DLOAD_MODE bool "Qualcomm download mode" depends on POWER_RESET_MSM help This makes the SoC enter download mode when it resets due to a kernel panic. Note that this doesn't by itself make the kernel reboot on a kernel panic - that must be enabled via another mechanism. config POWER_RESET_QNAP bool "QNAP power-off driver" depends on OF_GPIO && POWER_RESET && PLAT_ORION help This driver supports turning off QNAP NAS devices by sending commands to the microcontroller which controls the main power. Say Y if you have a QNAP NAS. config POWER_RESET_RESTART bool "Restart power-off driver" depends on ARM help Some boards don't actually have the ability to power off. Instead they restart, and u-boot holds the SoC until the user presses a key. u-boot then boots into Linux. config POWER_RESET_VEXPRESS bool depends on POWER_RESET help Power off and reset support for the ARM Ltd. Versatile Express boards.