1Broadcom Stingray 2================= 3 4Description 5----------- 6Broadcom's Stingray(BCM958742t) is a multi-core processor with 8 Cortex-A72 cores. 7Trusted Firmware-A (TF-A) is used to implement secure world firmware, supporting 8BL2 and BL31 for Broadcom Stingray SoCs. 9 10On Poweron, Boot ROM will load bl2 image and Bl2 will initialize the hardware, 11then loads bl31 and bl33 into DDR and boots to bl33. 12 13Boot Sequence 14------------- 15 16Bootrom --> TF-A BL2 --> TF-A BL31 --> BL33(u-boot) 17 18Code Locations 19~~~~~~~~~~~~~~ 20- Trusted Firmware-A: 21 `link <https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git/>`__ 22 23How to build 24------------ 25 26Build Procedure 27~~~~~~~~~~~~~~~ 28 29- Prepare AARCH64 toolchain. 30 31- Build u-boot first, and get the binary image: u-boot.bin, 32 33- Build TF-A 34 35 Build fip: 36 37 .. code:: shell 38 39 make CROSS_COMPILE=aarch64-linux-gnu- PLAT=stingray BOARD_CFG=bcm958742t all fip BL33=u-boot.bin 40 41Deploy TF-A Images 42~~~~~~~~~~~~~~~~~~ 43The u-boot will be upstreamed soon, this doc will be updated once they are ready, and the link will be posted. 44