u-boot/drivers/sysreset/Kconfig
Masahiro Yamada 573a3811ed sysreset: psci: support system reset in a generic way with PSCI
If the system is running PSCI firmware, the System Reset function
(func ID: 0x80000009) is supposed to be handled by PSCI, that is,
the SoC/board specific reset implementation should be moved to PSCI.
U-Boot should call the PSCI service according to the arm-smccc
manner.

The arm-smccc is supported on ARMv7 or later.  Especially, ARMv8
generation SoCs are likely to run ARM Trusted Firmware BL31.  In
this case, U-Boot is a non-secure world boot loader, so it should
not be able to reset the system directly.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-04-18 10:29:19 -04:00

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#
# System reset devices
#
menu "System reset device drivers"
config SYSRESET
bool "Enable support for system reset drivers"
depends on DM
help
Enable system reset drivers which can be used to reset the CPU or
board. Each driver can provide a reset method which will be called
to effect a reset. The uclass will try all available drivers when
reset_walk() is called.
if SYSRESET
config SYSRESET_PSCI
bool "Enable support for PSCI System Reset"
depends on ARM_PSCI_FW
help
Enable PSCI SYSTEM_RESET function call. To use this, PSCI firmware
must be running on your system.
endif
endmenu