rpi3: update documentation for OP-TEE support
Describe how to use BL32 build variable to load OP-TEE into FIP.
Signed-off-by: Ying-Chun Liu (PaulLiu) <paulliu@debian.org>
diff --git a/docs/plat/rpi3.rst b/docs/plat/rpi3.rst
index b7879a8..f9d1d1c 100644
--- a/docs/plat/rpi3.rst
+++ b/docs/plat/rpi3.rst
@@ -122,7 +122,7 @@
0x10000000 +-----------------+
| Secure SRAM | BL2, BL31
0x10100000 +-----------------+
- | Secure DRAM |
+ | Secure DRAM | BL32 (Secure payload)
0x10300000 +-----------------+
| Non-secure DRAM | BL33
0x11000000 +-----------------+
@@ -237,6 +237,12 @@
in AArch64 mode. If set to 1, it will jump to BL33 in Hypervisor in AArch32
mode.
+- ``BL32``: This port can load and run OP-TEE. The OP-TEE image is optional.
+ Please use the code from `here <https://github.com/OP-TEE/optee_os>`__.
+ Build the Trusted Firmware with option ``BL32=tee-header_v2.bin
+ BL32_EXTRA1=tee-pager_v2.bin BL32_EXTRA2=tee-pageable_v2.bin``
+ to put the binaries into the FIP.
+
The following is not currently supported:
- AArch32 for TF-A itself.