| 12345678910111213141516171819202122232425262728293031323334353637383940414243 |
- Qualcomm Technologies, Inc.
- ===========================
- Trusted Firmware-A (TF-A) implements the EL3 firmware layer for QTI SC7180,
- SC7280.
- Boot Trace
- -------------
- Bootrom --> BL1/BL2 --> BL31 --> BL33 --> Linux kernel
- BL1/2 and BL33 can currently be supplied from Coreboot + Depthcharge
- How to build
- ------------
- Code Locations
- ~~~~~~~~~~~~~~
- - Trusted Firmware-A:
- `link <https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git>`__
- Build Procedure
- ~~~~~~~~~~~~~~~
- QTI SoC expects TF-A's BL31 to get integrated with other boot software
- Coreboot, so only bl31.elf need to get build from the TF-A repository.
- The build command looks like
- make CROSS_COMPILE=aarch64-linux-gnu- PLAT=sc7180 COREBOOT=1
- update value of CROSS_COMPILE argument with your cross-compilation toolchain.
- Additional QTISECLIB_PATH=<path to qtiseclib> can be added in build command.
- if QTISECLIB_PATH is not added in build command stub implementation of qtiseclib
- is picked. qtiseclib with stub implementation doesn't boot device. This was
- added to satisfy compilation.
- QTISELIB for SC7180 is available at
- `link <https://github.com/coreboot/qc_blobs/blob/master/sc7180/qtiseclib/libqtisec.a?raw=true>`__
- QTISELIB for SC7280 is available at
- `link <https://github.com/coreboot/qc_blobs/blob/master/sc7280/qtiseclib/libqtisec.a?raw=true>`__
|
