AArch32: Add essential ARM platform and FVP support
This patch adds AArch32 support for FVP and implements common platform APIs
like `plat_get_my_stack`, `plat_set_my_stack`, `plat_my_core_cos` for AArch32.
Only Multi Processor(MP) implementations of these functions are considered in
this patch. The ARM Standard platform layer helpers are implemented for
AArch32 and the common makefiles are modified to cater for both AArch64 and
AArch32 builds. Compatibility with the deprecated platform API is not
supported for AArch32.
Change-Id: Iad228400613eec91abf731b49e21a15bcf2833ea
diff --git a/plat/arm/board/fvp/platform.mk b/plat/arm/board/fvp/platform.mk
index 1ea9822..2865569 100644
--- a/plat/arm/board/fvp/platform.mk
+++ b/plat/arm/board/fvp/platform.mk
@@ -69,6 +69,9 @@
plat/common/plat_gicv2.c \
plat/arm/common/arm_gicv2.c
else ifeq (${FVP_USE_GIC_DRIVER}, FVP_GICV3_LEGACY)
+ ifeq (${ARCH}, aarch32)
+ $(error "GICV3 Legacy driver not supported for AArch32 build")
+ endif
FVP_GIC_SOURCES := drivers/arm/gic/arm_gic.c \
drivers/arm/gic/gic_v2.c \
drivers/arm/gic/gic_v3.c \
@@ -98,12 +101,15 @@
PLAT_BL_COMMON_SOURCES := plat/arm/board/fvp/fvp_common.c
-FVP_CPU_LIBS := lib/cpus/aarch64/aem_generic.S \
- lib/cpus/aarch64/cortex_a35.S \
+FVP_CPU_LIBS := lib/cpus/${ARCH}/aem_generic.S
+
+ifeq (${ARCH}, aarch64)
+FVP_CPU_LIBS += lib/cpus/aarch64/cortex_a35.S \
lib/cpus/aarch64/cortex_a53.S \
lib/cpus/aarch64/cortex_a57.S \
lib/cpus/aarch64/cortex_a72.S \
lib/cpus/aarch64/cortex_a73.S
+endif
BL1_SOURCES += drivers/io/io_semihosting.c \
lib/semihosting/semihosting.c \