plat/arm: change the default option of ARM_TSP_RAM_LOCATION
On Arm standard platforms, it runs out of SRAM space when TBB is
enabled, so the TSP default location is changed to dram when TBB
is enabled.
Change-Id: I516687013ad436ef454d2055d4e6fce06e467044
Signed-off-by: Qixiang Xu <qixiang.xu@arm.com>
diff --git a/docs/user-guide.rst b/docs/user-guide.rst
index 28483f2..d7ac2bd 100644
--- a/docs/user-guide.rst
+++ b/docs/user-guide.rst
@@ -664,9 +664,10 @@
- ``ARM_TSP_RAM_LOCATION``: location of the TSP binary. Options:
- - ``tsram`` : Trusted SRAM (default option)
+ - ``tsram`` : Trusted SRAM (default option when TBB is not enabled)
- ``tdram`` : Trusted DRAM (if available)
- - ``dram`` : Secure region in DRAM (configured by the TrustZone controller)
+ - ``dram`` : Secure region in DRAM (default option when TBB is enabled,
+ configured by the TrustZone controller)
- ``ARM_XLAT_TABLES_LIB_V1``: boolean option to compile the Trusted Firmware
with version 1 of the translation tables library instead of version 2. It is
diff --git a/plat/arm/common/arm_common.mk b/plat/arm/common/arm_common.mk
index 82f02b1..e1484d7 100644
--- a/plat/arm/common/arm_common.mk
+++ b/plat/arm/common/arm_common.mk
@@ -9,7 +9,12 @@
# DRAM (if available) or the TZC secured area of DRAM.
# Trusted SRAM is the default.
- ARM_TSP_RAM_LOCATION := tsram
+ ifneq (${TRUSTED_BOARD_BOOT},0)
+ ARM_TSP_RAM_LOCATION ?= dram
+ else
+ ARM_TSP_RAM_LOCATION ?= tsram
+ endif
+
ifeq (${ARM_TSP_RAM_LOCATION}, tsram)
ARM_TSP_RAM_LOCATION_ID = ARM_TRUSTED_SRAM_ID
else ifeq (${ARM_TSP_RAM_LOCATION}, tdram)