[PATCH v3 3/3] board/qualcomm: Introduce TF-A and OP-TEE config fragment

[Sumit Garg <sumit.garg@kernel.org>]

From: Sumit Garg <sumit.garg@oss.qualcomm.com>

Recently upstream TF-A/OP-TEE has started gaining support for Qcom
platforms. RB3Gen2 being the first one and more to come. U-Boot in
corresponding boot flow is packaged as a position independent executable.

So, lets add a generic U-Boot config fragment for Qcom platforms to
support TF-A/OP-TEE based TrustZone stack. Build command:

$ ./scripts/kconfig/merge_config.sh \
       configs/qcom_defconfig \
       board/qualcomm/tfa-optee.config
$ make -j`nproc` DEVICE_TREE=qcom/qcs6490-rb3gen2

For more information refer here:
https://trustedfirmware-a.readthedocs.io/en/latest/plat/qti/rb3gen2.html

Signed-off-by: Sumit Garg <sumit.garg@oss.qualcomm.com>
---
 board/qualcomm/tfa-optee.config | 4 ++++
 1 file changed, 4 insertions(+)
 create mode 100644 board/qualcomm/tfa-optee.config

diff --git a/board/qualcomm/tfa-optee.config b/board/qualcomm/tfa-optee.config
new file mode 100644
index 00000000000..1e8364c114f
--- /dev/null
+++ b/board/qualcomm/tfa-optee.config
@@ -0,0 +1,4 @@
+# Enables support for TF-A based OP-TEE as the open
+# source TrustZone stack on Qcom platforms
+CONFIG_TEE=y
+CONFIG_OPTEE=y
-- 
2.51.0