AArch32: Common changes needed for BL1/BL2
This patch adds common changes to support AArch32 state in
BL1 and BL2. Following are the changes:
* Added functions for disabling MMU from Secure state.
* Added AArch32 specific SMC function.
* Added semihosting support.
* Added reporting of unhandled exceptions.
* Added uniprocessor stack support.
* Added `el3_entrypoint_common` macro that can be
shared by BL1 and BL32 (SP_MIN) BL stages. The
`el3_entrypoint_common` is similar to the AArch64
counterpart with the main difference in the assembly
instructions and the registers that are relevant to
AArch32 execution state.
* Enabled `LOAD_IMAGE_V2` flag in Makefile for
`ARCH=aarch32` and added check to make sure that
platform has not overridden to disable it.
Change-Id: I33c6d8dfefb2e5d142fdfd06a0f4a7332962e1a3
diff --git a/Makefile b/Makefile
index 376db8d..15b1ac8 100644
--- a/Makefile
+++ b/Makefile
@@ -188,6 +188,10 @@
FWU_FIP_DEPS += fwu_certificates
endif
+# For AArch32, enable new version of image loading.
+ifeq (${ARCH},aarch32)
+ LOAD_IMAGE_V2 := 1
+endif
################################################################################
# Toolchain
@@ -364,6 +368,14 @@
endif
endif
+# For AArch32, LOAD_IMAGE_V2 must be enabled.
+ifeq (${ARCH},aarch32)
+ ifeq (${LOAD_IMAGE_V2}, 0)
+ $(error "For AArch32, LOAD_IMAGE_V2 must be enabled.")
+ endif
+endif
+
+
################################################################################
# Process platform overrideable behaviour
################################################################################