[U-Boot] [PATCH v4 0/6] Add ARMv8 PSCI framework

[york sun]

On 11/28/2016 06:06 PM, Hongbo Zhang wrote:
> Hi York,
> This generic PSCI is controlled by CONFIG_ARMV8_PSCI, if enabled, any
> platform can implement their own PSCI functions under this framework,
> this is all similar with ARMv7's.
>
> While PPA is controlled by CONFIG_FSL_LS_PPA, and the private PSCI
> inside the PPA is controlled by FSL_PPA_ARMV8_PSCI,  this macro
> depends on and selected by CONFIG_FSL_LS_PPA.
>
> That is to say, they are using separate configs, and only one of them
> can be enabled at one time.
>

That's what I am looking for. So these two options are mutually 
exclusive. But you don't have that in Kconfig. I can run menuconfig and 
get this result in .config file

#
# Layerscape PPA
#
CONFIG_FSL_LS_PPA=y
CONFIG_FSL_PPA_ARMV8_PSCI=y
CONFIG_SYS_FSL_ERRATUM_A010539=y
CONFIG_ARMV8_MULTIENTRY=y
# CONFIG_ARMV8_SPIN_TABLE is not set
CONFIG_ARMV8_PSCI=y
CONFIG_ARMV8_PSCI_NR_CPUS=4
CONFIG_ARMV8_PSCI_CPUS_PER_CLUSTER=0
CONFIG_IDENT_STRING=""
# CONFIG_PRE_CONSOLE_BUFFER is not set
# CONFIG_VIDEO is not set

You can see both options can be enabled from menuconfig. Please see 
comments in other patches as well.

York