tree e1e06e5dfe96e167bfd7355a6048712a1e1e230c
parent 4a95253b53f4295f3fa9d790ac689ead9c90613c
author Yann Gautier <yann.gautier@foss.st.com> 1704998064 +0100
committer Maxime Méré <maxime.mere@foss.st.com> 1729589098 +0200

feat(stm32mp2): boot BL33 at EL1 or EL2

STM32 MPUs use U-Boot as BL33. It can handle being booted at EL2.
Add a new STM32MP_BL33_EL1 config boolean. If defined BL33 will start
at EL1 and with INIT_UNUSED_NS_EL2 defined to Iiitialize the unused EL2
registers.

Change BL33 spsr parameter in bl2_mem_params_descs[] to use MODE_EL2
or MODE_EL1 depending on this flag. Default to MODE_EL1 as kernel
isn't able to boot at EL2 yet.

Change-Id: I6a8b35280d454d8140d7b28f0a5fc9b9a5093d6d
Signed-off-by: Yann Gautier <yann.gautier@foss.st.com>
Signed-off-by: Christian Bruel <christian.bruel@foss.st.com>