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diff --git a/docs/plat/arm/tc/index.rst b/docs/plat/arm/tc/index.rst new file mode 100644 index 000000000..20d3e562e --- /dev/null +++ b/docs/plat/arm/tc/index.rst @@ -0,0 +1,56 @@ +TC Total Compute Platform +========================== + +Some of the features of TC platform referenced in TF-A include: + +- A `System Control Processor <https://github.com/ARM-software/SCP-firmware>`_ + to abstract power and system management tasks away from application + processors. The RAM firmware for SCP is included in the TF-A FIP and is + loaded by AP BL2 from FIP in flash to SRAM for copying by SCP (SCP has access + to AP SRAM). +- GICv4 +- Trusted Board Boot +- SCMI +- MHUv2 + +Currently, the main difference between TC0 (TARGET_PLATFORM=0) and TC1 +(TARGET_PLATFORM=1) platforms w.r.t to TF-A is the CPUs supported. TC0 has +support for Cortex A510, Cortex A710 and Cortex X2, while TC1 has support for +Cortex A510, Cortex Makalu and Cortex Makalu ELP Arm CPUs. + + +Boot Sequence +------------- + +The execution begins from SCP_BL1. SCP_BL1 powers up the AP which starts +executing AP_BL1 and then executes AP_BL2 which loads the SCP_BL2 from +FIP to SRAM. The SCP has access to AP SRAM. The address and size of SCP_BL2 +is communicated to SCP using SDS. SCP copies SCP_BL2 from SRAM to its own +RAM and starts executing it. The AP then continues executing the rest of TF-A +stages including BL31 runtime stage and hands off executing to +Non-secure world (u-boot). + +Build Procedure (TF-A only) +~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +- Obtain arm `toolchain <https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/gnu-a/downloads>`_. + Set the CROSS_COMPILE environment variable to point to the toolchain folder. + +- Build TF-A: + + .. code:: shell + + make PLAT=tc BL33=<path_to_uboot.bin> \ + SCP_BL2=<path_to_scp_ramfw.bin> TARGET_PLATFORM={0,1} all fip + + Enable TBBR by adding the following options to the make command: + + .. code:: shell + + MBEDTLS_DIR=<path_to_mbedtls_directory> \ + TRUSTED_BOARD_BOOT=1 \ + GENERATE_COT=1 \ + ARM_ROTPK_LOCATION=devel_rsa \ + ROT_KEY=plat/arm/board/common/rotpk/arm_rotprivk_rsa.pem + +*Copyright (c) 2020-2021, Arm Limited. All rights reserved.* |