u-boot/arch/arm/cpu/armv7/Kconfig
Icenowy Zheng 7f772fbcc0 ARM: add Kconfig option for PSCI 0.1
We still have some platforms that only implements functionalities in
PSCI 0.1 (e.g. Allwinner ARMv7 SoCs).

Add a Kconfig option for exporting only PSCI 0.1. The code to export
PSCI 0.1 is still available and gets activated by this patch.

In addition, default ARCH_SUNXI U-Boot PSCI implementation to export
PSCI 0.1, to fix poweroff/reboot regression on Allwinner multi-core
ARMv7 SoCs.

Signed-off-by: Icenowy Zheng <icenowy@aosc.io>
2020-08-05 08:18:34 -04:00

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1.9 KiB
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if CPU_V7A
config CPU_V7_HAS_NONSEC
bool
config CPU_V7_HAS_VIRT
bool
config ARCH_SUPPORT_PSCI
bool
config ARMV7_NONSEC
bool "Enable support for booting in non-secure mode" if EXPERT
depends on CPU_V7_HAS_NONSEC
default y
---help---
Say Y here to enable support for booting in non-secure / SVC mode.
config ARMV7_BOOT_SEC_DEFAULT
bool "Boot in secure mode by default" if EXPERT
depends on ARMV7_NONSEC
default y if ARCH_TEGRA
---help---
Say Y here to boot in secure mode by default even if non-secure mode
is supported. This option is useful to boot kernels which do not
suppport booting in non-secure mode. Only set this if you need it.
This can be overridden at run-time by setting the bootm_boot_mode env.
variable to "sec" or "nonsec".
config ARMV7_VIRT
bool "Enable support for hardware virtualization" if EXPERT
depends on CPU_V7_HAS_VIRT && ARMV7_NONSEC
default y
---help---
Say Y here to boot in hypervisor (HYP) mode when booting non-secure.
config ARMV7_PSCI
bool "Enable PSCI support" if EXPERT
depends on ARMV7_NONSEC && ARCH_SUPPORT_PSCI
default y
help
Say Y here to enable PSCI support.
choice
prompt "Supported PSCI version"
depends on ARMV7_PSCI
default ARMV7_PSCI_0_1 if ARCH_SUNXI
default ARMV7_PSCI_1_0
help
Select the supported PSCI version.
config ARMV7_PSCI_1_0
bool "PSCI V1.0"
config ARMV7_PSCI_0_2
bool "PSCI V0.2"
config ARMV7_PSCI_0_1
bool "PSCI V0.1"
endchoice
config ARMV7_PSCI_NR_CPUS
int "Maximum supported CPUs for PSCI"
depends on ARMV7_NONSEC
default 4
help
The maximum number of CPUs supported in the PSCI firmware.
It is no problem to set a larger value than the number of
CPUs in the actual hardware implementation.
config ARMV7_LPAE
bool "Use LPAE page table format" if EXPERT
depends on CPU_V7A
default y if ARMV7_VIRT
---help---
Say Y here to use the long descriptor page table format. This is
required if U-Boot runs in HYP mode.
endif