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authorMasahiro Yamada <yamada.masahiro@socionext.com>2017-04-14 11:10:24 +0900
committerTom Rini <trini@konsulko.com>2017-04-18 10:29:19 -0400
commit573a3811edc89c2ea3bf4fd077e3673b863b9a0d (patch)
tree8704ecc42d27c29d7aaef07c2f3942a67d8df476 /drivers/sysreset/Kconfig
parentc54bcf6805cc6762cb998751b8e005f39ee1dad1 (diff)
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>
Diffstat (limited to 'drivers/sysreset/Kconfig')
-rw-r--r--drivers/sysreset/Kconfig10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/sysreset/Kconfig b/drivers/sysreset/Kconfig
index 05a37b9a14..966463036f 100644
--- a/drivers/sysreset/Kconfig
+++ b/drivers/sysreset/Kconfig
@@ -13,4 +13,14 @@ config SYSRESET
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
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