[PATCH 01/17] armv8: Fix SMCC and ARM_PSCI_FW dependencies
Peng Fan
peng.fan at nxp.com
Thu Jul 2 03:14:55 CEST 2020
> 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
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