| Broadcom Stingray |
| ================= |
| |
| Description |
| ----------- |
| Broadcom's Stingray(BCM958742t) is a multi-core processor with 8 Cortex-A72 cores. |
| Trusted Firmware-A (TF-A) is used to implement secure world firmware, supporting |
| BL2 and BL31 for Broadcom Stingray SoCs. |
| |
| On Poweron, Boot ROM will load bl2 image and Bl2 will initialize the hardware, |
| then loads bl31 and bl33 into DDR and boots to bl33. |
| |
| Boot Sequence |
| ------------- |
| |
| Bootrom --> TF-A BL2 --> TF-A BL31 --> BL33(u-boot) |
| |
| Code Locations |
| ~~~~~~~~~~~~~~ |
| - Trusted Firmware-A: |
| `link <https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git/>`__ |
| |
| How to build |
| ------------ |
| |
| Build Procedure |
| ~~~~~~~~~~~~~~~ |
| |
| - Prepare AARCH64 toolchain. |
| |
| - Build u-boot first, and get the binary image: u-boot.bin, |
| |
| - Build TF-A |
| |
| Build fip: |
| |
| .. code:: shell |
| |
| make CROSS_COMPILE=aarch64-linux-gnu- PLAT=stingray BOARD_CFG=bcm958742t all fip BL33=u-boot.bin |
| |
| Deploy TF-A Images |
| ~~~~~~~~~~~~~~~~~~ |
| The u-boot will be upstreamed soon, this doc will be updated once they are ready, and the link will be posted. |