[PATCH 01/17] armv8: Fix SMCC and ARM_PSCI_FW dependencies

[Peng Fan]

> Subject: [PATCH 01/17] armv8: Fix SMCC and ARM_PSCI_FW dependencies
> 
> From: Oleksandr Andrushchenko <oleksandr_andrushchenko at epam.com>
> 
> Currently SMCC selects ARM_PSCI_FW if enabled which is not correct as
> there are cases that PSCI can function without firmware at all.
> ARM_PSCI_FW itself is built with driver model approach, so it cannot be
> enabled if DM is off.
> Fix this by making PSCI reset functionality depend on ARM_PSCI_FW and only
> in case if DM is enabled.

I think this might break others, see drivers/firmware/psci.c

Regards,
Peng.

> 
> Signed-off-by: Oleksandr Andrushchenko
> <oleksandr_andrushchenko at epam.com>
> Signed-off-by: Anastasiia Lukianenko <anastasiia_lukianenko at epam.com>
> Suggested-by: Volodymyr Babchuk <volodymyr_babchuk at epam.com>
> ---
>  arch/arm/Kconfig           | 1 -
>  arch/arm/cpu/armv8/Kconfig | 2 ++
>  2 files changed, 2 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index
> 54d65f8488..e9ad716aaa 100644
> --- a/arch/arm/Kconfig
> +++ b/arch/arm/Kconfig
> @@ -387,7 +387,6 @@ config SYS_ARCH_TIMER  config ARM_SMCCC
>  	bool "Support for ARM SMC Calling Convention (SMCCC)"
>  	depends on CPU_V7A || ARM64
> -	select ARM_PSCI_FW
>  	help
>  	  Say Y here if you want to enable ARM SMC Calling Convention.
>  	  This should be enabled if U-Boot needs to communicate with system
> diff --git a/arch/arm/cpu/armv8/Kconfig b/arch/arm/cpu/armv8/Kconfig
> index 3655990772..c8727f4175 100644
> --- a/arch/arm/cpu/armv8/Kconfig
> +++ b/arch/arm/cpu/armv8/Kconfig
> @@ -103,6 +103,8 @@ config PSCI_RESET
>  	bool "Use PSCI for reset and shutdown"
>  	default y
>  	select ARM_SMCCC if OF_CONTROL
> +	select ARM_PSCI_FW if DM
> +
>  	depends on !ARCH_EXYNOS7 && !ARCH_BCM283X && \
>  		   !TARGET_LS2080A_SIMU && !TARGET_LS2080AQDS && \
>  		   !TARGET_LS2080ARDB && !TARGET_LS2080A_EMU && \
> --
> 2.17.1