tree ead9a6012f806050f68efc5e343e2924a0efb9ba
parent c91a26dcbb2691a0b86ff648b692ae0260b8bf58
author Etienne Carriere <etienne.carriere@st.com> 1502286533 +0200
committer Etienne Carriere <etienne.carriere@st.com> 1502286533 +0200

bl32: add secure interrupt handling in AArch32 sp_min

Add support for a minimal secure interrupt service in sp_min for
the AArch32 implementation. Hard code that only FIQs are handled.

Introduce bolean build directive SP_MIN_WITH_SECURE_FIQ to enable
FIQ handling from SP_MIN.

Configure SCR[FIQ] and SCR[FW] from generic code for both cold and
warm boots to handle FIQ in secure state from monitor.

Since SP_MIN architecture, FIQ are always trapped when system executes
in non secure state. Hence discard relay of the secure/non-secure
state in the FIQ handler.

Change-Id: I1f7d1dc7b21f6f90011b7f3fcd921e455592f5e7
Signed-off-by: Etienne Carriere <etienne.carriere@st.com>