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cb14cc8867
There are two different implementations to do a secure monitor call: smc_call() and arm_smccc_smc(). The former is defined in fwcall.c and seems to be an ad-hoc implementation. The latter is imported from linux. smc_call() is also only available if CONFIG_ARMV8_PSCI is not defined. This makes it impossible to have both PSCI calls and PSCI implementation in one u-boot build. The layerscape SoC code decide at runtime via check_psci() if there is a PSCI support. Therefore, this is a prerequisite patch to add PSCI implementation support for the layerscape SoCs. Note, for the TFA part, this is only compile time tested with (ls1028ardb_tfa_defconfig). Signed-off-by: Michael Walle <michael@walle.cc> [Rebased] Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>