u-boot/arch/arm/cpu/armv8/bcmns3
Abhishek Shah ef7192e404 board: ns3: add api to save boot parameters passed from BL31
Add API to save boot parameters passed from BL31

Use assembly implementation of save_boot_params instead of c function.
Because generally ATF does not set up SP_EL2 on exiting.
Thus, usage of a C function immediately after exiting with no stack
setup done by ATF explicitly, may cause SP_EL2 to be not sane,
which in turn causes a crash if this boot was not lucky to get
an SP_EL2 in valid range. Replace C implementation with assembly one
which does not use stack this early, and let u-boot to set up its stack
later.

Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
Signed-off-by: Rajesh Ravi <rajesh.ravi@broadcom.com>
Signed-off-by: Vladimir Olovyannikov <vladimir.olovyannikov@broadcom.com>
Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2020-07-29 10:13:41 -04:00
..
lowlevel.S board: ns3: add api to save boot parameters passed from BL31 2020-07-29 10:13:41 -04:00
Makefile arm: cpu: armv8: add L3 memory flush support 2020-07-29 10:13:40 -04:00