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authorAkshay Belsare <akshay.belsare@amd.com>2023-04-06 16:21:06 +0530
committerMichal Šimek <monstr@monstr.eu>2023-04-11 15:10:23 +0100
commit57536653e62765f9529d045b118ad881369bc73a (patch)
tree996aa9393e70a048475e8301e07321660f7e229f
parent07c594c5183d32563efcc87dd79824ffc217a180 (diff)
downloadarm-trusted-firmware-57536653e62765f9529d045b118ad881369bc73a.tar.gz
feat(zynqmp): make stack size configurable
If PLATFORM_STACK_SIZE not already defined, use the default value of PLATFORM_STACK_SIZE. This makes the stack size value configurable for different interface like custom packages. Signed-off-by: Amit Nagal <amit.nagal@amd.com> Signed-off-by: Akshay Belsare <akshay.belsare@amd.com> Change-Id: I87e9fcbfb4c4092378b1ac0ff8fb6d084495d320
-rw-r--r--docs/plat/xilinx-zynqmp.rst10
-rw-r--r--plat/xilinx/zynqmp/include/platform_def.h2
2 files changed, 12 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
----------------------------
diff --git a/plat/xilinx/zynqmp/include/platform_def.h b/plat/xilinx/zynqmp/include/platform_def.h
index aebce304e..fb1130ff7 100644
--- a/plat/xilinx/zynqmp/include/platform_def.h
+++ b/plat/xilinx/zynqmp/include/platform_def.h
@@ -21,7 +21,9 @@
******************************************************************************/
/* Size of cacheable stacks */
+#ifndef PLATFORM_STACK_SIZE
#define PLATFORM_STACK_SIZE 0x440
+#endif
#define PLATFORM_CORE_COUNT U(4)
#define PLAT_NUM_POWER_DOMAINS U(5)