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-rw-r--r--docs/plat/xilinx-zynqmp.rst10
1 files changed, 10 insertions, 0 deletions
diff --git a/docs/plat/xilinx-zynqmp.rst b/docs/plat/xilinx-zynqmp.rst
index 81f4fbecc..4fe0d2f84 100644
--- a/docs/plat/xilinx-zynqmp.rst
+++ b/docs/plat/xilinx-zynqmp.rst
@@ -89,6 +89,16 @@ the build command example is;
make CROSS_COMPILE=aarch64-none-elf- PLAT=zynqmp RESET_TO_BL31=1 DEBUG=1 \
ZYNQMP_ATF_MEM_BASE=0x40000 ZYNQMP_ATF_MEM_SIZE=<size>
+Configurable Stack Size
+-----------------------
+
+The stack size in TF-A for ZynqMP platform is configurable.
+The custom package can define the desired stack size as per the requirement in
+the make file as follows,
+
+PLATFORM_STACK_SIZE := <value>
+$(eval $(call add_define,PLATFORM_STACK_SIZE))
+
FSBL->TF-A Parameter Passing
----------------------------