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Usama Ariff1513622021-04-09 17:07:41 +01001TC Total Compute Platform
Usama Arifbec5afd2020-04-17 16:13:39 +01002==========================
3
Usama Ariff1513622021-04-09 17:07:41 +01004Some of the features of TC platform referenced in TF-A include:
Usama Arifbec5afd2020-04-17 16:13:39 +01005
6- A `System Control Processor <https://github.com/ARM-software/SCP-firmware>`_
7 to abstract power and system management tasks away from application
8 processors. The RAM firmware for SCP is included in the TF-A FIP and is
9 loaded by AP BL2 from FIP in flash to SRAM for copying by SCP (SCP has access
10 to AP SRAM).
11- GICv4
12- Trusted Board Boot
13- SCMI
14- MHUv2
15
Rupinderjit Singh820b3b62022-04-04 17:28:41 +010016Currently, the main difference between TC0 (TARGET_PLATFORM=0), TC1
17(TARGET_PLATFORM=1), TC2 (TARGET_PLATFORM=2) platforms w.r.t to TF-A
18is the CPUs supported as below:
Usama Ariff1513622021-04-09 17:07:41 +010019
Rupinderjit Singh820b3b62022-04-04 17:28:41 +010020- TC0 has support for Cortex A510, Cortex A710 and Cortex X2.
Boyan Karatotevbdf953c2022-10-25 11:29:04 +010021- TC1 has support for Cortex A510, Cortex Makalu and Cortex X3.
Rupinderjit Singh820b3b62022-04-04 17:28:41 +010022- TC2 has support for Hayes and Hunter Arm CPUs.
23
Usama Ariff1513622021-04-09 17:07:41 +010024
Usama Arifbec5afd2020-04-17 16:13:39 +010025Boot Sequence
26-------------
27
28The execution begins from SCP_BL1. SCP_BL1 powers up the AP which starts
29executing AP_BL1 and then executes AP_BL2 which loads the SCP_BL2 from
30FIP to SRAM. The SCP has access to AP SRAM. The address and size of SCP_BL2
31is communicated to SCP using SDS. SCP copies SCP_BL2 from SRAM to its own
32RAM and starts executing it. The AP then continues executing the rest of TF-A
33stages including BL31 runtime stage and hands off executing to
34Non-secure world (u-boot).
35
36Build Procedure (TF-A only)
37~~~~~~~~~~~~~~~~~~~~~~~~~~~
38
Rupinderjit Singh820b3b62022-04-04 17:28:41 +010039- Obtain `Arm toolchain`_ and set the CROSS_COMPILE environment variable to
40 point to the toolchain folder.
Usama Arifbec5afd2020-04-17 16:13:39 +010041
42- Build TF-A:
43
44 .. code:: shell
45
Usama Ariff1513622021-04-09 17:07:41 +010046 make PLAT=tc BL33=<path_to_uboot.bin> \
Rupinderjit Singh820b3b62022-04-04 17:28:41 +010047 SCP_BL2=<path_to_scp_ramfw.bin> TARGET_PLATFORM={0,1,2} all fip
Usama Arifbec5afd2020-04-17 16:13:39 +010048
49 Enable TBBR by adding the following options to the make command:
50
51 .. code:: shell
52
53 MBEDTLS_DIR=<path_to_mbedtls_directory> \
54 TRUSTED_BOARD_BOOT=1 \
55 GENERATE_COT=1 \
56 ARM_ROTPK_LOCATION=devel_rsa \
57 ROT_KEY=plat/arm/board/common/rotpk/arm_rotprivk_rsa.pem
58
Rupinderjit Singh820b3b62022-04-04 17:28:41 +010059--------------
60
61*Copyright (c) 2020-2022, Arm Limited. All rights reserved.*
62
63.. _Arm Toolchain: https://developer.arm.com/tools-and-software/open-source-software/developer-tools/gnu-toolchain/downloads