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/common/arm_common.mk b/plat/arm/common/arm_common.mk
index 03b9fe4..0b961ea7 100644
--- a/plat/arm/common/arm_common.mk
+++ b/plat/arm/common/arm_common.mk
@@ -28,24 +28,31 @@
# POSSIBILITY OF SUCH DAMAGE.
#
-# On ARM standard platorms, the TSP can execute from Trusted SRAM, Trusted
-# DRAM (if available) or the TZC secured area of DRAM.
-# Trusted SRAM is the default.
+ifeq (${ARCH}, aarch64)
+ # On ARM standard platorms, the TSP can execute from Trusted SRAM, Trusted
+ # DRAM (if available) or the TZC secured area of DRAM.
+ # Trusted SRAM is the default.
-ARM_TSP_RAM_LOCATION := tsram
-ifeq (${ARM_TSP_RAM_LOCATION}, tsram)
- ARM_TSP_RAM_LOCATION_ID = ARM_TRUSTED_SRAM_ID
-else ifeq (${ARM_TSP_RAM_LOCATION}, tdram)
- ARM_TSP_RAM_LOCATION_ID = ARM_TRUSTED_DRAM_ID
-else ifeq (${ARM_TSP_RAM_LOCATION}, dram)
- ARM_TSP_RAM_LOCATION_ID = ARM_DRAM_ID
-else
- $(error "Unsupported ARM_TSP_RAM_LOCATION value")
+ ARM_TSP_RAM_LOCATION := tsram
+ ifeq (${ARM_TSP_RAM_LOCATION}, tsram)
+ ARM_TSP_RAM_LOCATION_ID = ARM_TRUSTED_SRAM_ID
+ else ifeq (${ARM_TSP_RAM_LOCATION}, tdram)
+ ARM_TSP_RAM_LOCATION_ID = ARM_TRUSTED_DRAM_ID
+ else ifeq (${ARM_TSP_RAM_LOCATION}, dram)
+ ARM_TSP_RAM_LOCATION_ID = ARM_DRAM_ID
+ else
+ $(error "Unsupported ARM_TSP_RAM_LOCATION value")
+ endif
+
+ # Process flags
+ $(eval $(call add_define,ARM_TSP_RAM_LOCATION_ID))
+
+ # Process ARM_BL31_IN_DRAM flag
+ ARM_BL31_IN_DRAM := 0
+ $(eval $(call assert_boolean,ARM_BL31_IN_DRAM))
+ $(eval $(call add_define,ARM_BL31_IN_DRAM))
endif
-# Process flags
-$(eval $(call add_define,ARM_TSP_RAM_LOCATION_ID))
-
# For the original power-state parameter format, the State-ID can be encoded
# according to the recommended encoding or zero. This flag determines which
# State-ID encoding to be parsed.
@@ -83,7 +90,7 @@
$(eval $(call add_define,ARM_BL31_IN_DRAM))
# Enable PSCI_STAT_COUNT/RESIDENCY APIs on ARM platforms
-ENABLE_PSCI_STAT = 1
+ENABLE_PSCI_STAT := 1
# On ARM platforms, separate the code and read-only data sections to allow
# mapping the former as executable and the latter as execute-never.
@@ -91,15 +98,17 @@
PLAT_INCLUDES += -Iinclude/common/tbbr \
- -Iinclude/plat/arm/common \
- -Iinclude/plat/arm/common/aarch64
+ -Iinclude/plat/arm/common
+ifeq (${ARCH}, aarch64)
+PLAT_INCLUDES += -Iinclude/plat/arm/common/aarch64
+endif
PLAT_BL_COMMON_SOURCES += lib/xlat_tables/xlat_tables_common.c \
- lib/xlat_tables/aarch64/xlat_tables.c \
- plat/arm/common/aarch64/arm_helpers.S \
+ lib/xlat_tables/${ARCH}/xlat_tables.c \
+ plat/arm/common/${ARCH}/arm_helpers.S \
plat/arm/common/arm_common.c \
- plat/common/aarch64/plat_common.c
+ plat/common/${ARCH}/plat_common.c
BL1_SOURCES += drivers/arm/sp805/sp805.c \
drivers/io/io_fip.c \