Docs: Update FP support document
Signed-off-by: Feder Liang <Feder.Liang@arm.com>
Change-Id: Ia61f33ab3f7565a4ac418fa3f66df3e2ef86a519
diff --git a/docs/integration_guide/tfm_fpu_support.rst b/docs/integration_guide/tfm_fpu_support.rst
index fcd511c..0884418 100644
--- a/docs/integration_guide/tfm_fpu_support.rst
+++ b/docs/integration_guide/tfm_fpu_support.rst
@@ -12,13 +12,14 @@
hardware.
* Support lazy stacking on/off.
* Support Inter-Process Communication (IPC) [5]_ model in TF-M, and doesn't
- support LIBRARY model.
+ support LIBRARY or SFN model.
* Support Armv8-M [6]_ mainline or later.
* Support isolation level 1,2,3.
+* Does not support use FPU in First-Level Interrupt Handling (FLIH) [7]_ at
+ current stage.
-FP support is enabled on Arm musca S1 [7]_ platform as a reference
-implementation. Please refer to musca s1 platform code when FP support is
-enabled on other platforms.
+Please refer to Arm musca S1 [8]_ platform as a reference implementation when
+you enable FP support on your platforms.
Secure libraries are compiled with ``COMPILER_CP_FLAG`` and linked with
``LINKER_CP_OPTION`` for different FP ABI types. All those libraries shall be
@@ -95,7 +96,9 @@
.. [6] `Armv8-M Architecture Reference Manual <https://developer.arm.com/documentation/ddi0553/latest>`_
-.. [7] `Musca-S1 Test Chip Board <https://developer.arm.com/tools-and-software/development-boards/iot-test-chips-and-boards/musca-s1-test-chip-board>`_
+.. [7] :doc:`Secure Interrupt Integration Guide </docs/integration_guide/tfm_secure_irq_integration_guide>`
+
+.. [8] `Musca-S1 Test Chip Board <https://developer.arm.com/tools-and-software/development-boards/iot-test-chips-and-boards/musca-s1-test-chip-board>`_
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