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feat(zynqmp): make stack size configurable

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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
This commit is contained in:
Akshay Belsare 2023-04-06 16:21:06 +05:30 • committed by Michal Šimek
parent 07c594c518
commit 57536653e6
2 changed files with 12 additions and 0 deletions
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10
docs/plat/xilinx-zynqmp.rst
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@ -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
----------------------------

2
plat/xilinx/zynqmp/include/platform_def.h
View file

@ -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)