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arm64: add config options for exception level startup 

Depending on the armv8 implementation the cpus could start in
EL1, EL2, or EL3.  Therefore allow the SoC to select the appropriate
mode.

BUG=chrome-os-partner:31545
BRANCH=None
TEST=Built.

Change-Id: I8787fd1bc4e14f03d829e6a5e5af915e29314770
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: bb6b092a43e34fbc64d941bb62f19a6b8ac2c5de
Original-Change-Id: Id063681ef7691097e528c105fffac5d467585e4e
Original-Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/214666
Original-Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-on: http://review.coreboot.org/9010
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Aaron Durbin 2014-08-27 10:44:32 -05:00 committed by Patrick Georgi
parent 1b315d0cde
commit 8811904439
1 changed files with 12 additions and 0 deletions
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12
src/arch/arm64/armv8/Kconfig
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@ -13,3 +13,15 @@ config ARCH_ROMSTAGE_ARMV8_64
config ARCH_RAMSTAGE_ARMV8_64
def_bool n
select ARCH_RAMSTAGE_ARM64
config ARM64_CPUS_START_IN_EL3
def_bool n
depends on ARCH_BOOTBLOCK_ARM_V8_64 || ARCH_ROMSTAGE_ARM_V8_64 || ARCH_RAMSTAGE_ARM_V8_64
config ARM64_CPUS_START_IN_EL2
def_bool n
depends on ARCH_BOOTBLOCK_ARM_V8_64 || ARCH_ROMSTAGE_ARM_V8_64 || ARCH_RAMSTAGE_ARM_V8_64
config ARM64_CPUS_START_IN_EL1
def_bool n
depends on ARCH_BOOTBLOCK_ARM_V8_64 || ARCH_ROMSTAGE_ARM_V8_64 || ARCH_RAMSTAGE_ARM_V8_64