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doc: board: ti: Add J742S2 support

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J742S2 SOC is derivative of J784S4, most of build infra of j784s4 is used
to build u-boot for J742S2 EVM board.

Add guide users on how to build for that board.

Signed-off-by: Udit Kumar <u-kumar1@ti.com>
Reviewed-by: Mattijs Korpershoek <mkorpershoek@kernel.org>
This commit is contained in:
Udit Kumar
2025-12-07 18:52:30 +05:30
committed by Heinrich Schuchardt
parent f9f4f8df57
commit 1205204a43
1 changed files with 21 additions and 2 deletions
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23
doc/board/ti/j784s4_evm.rst
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@@ -1,8 +1,8 @@
.. SPDX-License-Identifier: GPL-2.0-or-later OR BSD-3-Clause
.. sectionauthor:: Apurva Nandan <a-nandan@ti.com>
J784S4 and AM69 Platforms
=========================
J742S2, J784S4 and AM69 Platforms
=================================
Introduction
------------
@@ -37,6 +37,11 @@ Platform information:
* https://www.ti.com/tool/J784S4XEVM
* https://www.ti.com/tool/SK-AM69
J742S2 is derivative of J784S24 SOC, More info can be found in
* TRM : https://www.ti.com/lit/ug/spruje3/spruje3.pdf
* Platform Information : https://www.ti.com/tool/J742S2XH01EVM
Boot Flow
---------
Below is the pictorial representation of boot flow:
@@ -99,6 +104,13 @@ Set the variables corresponding to this platform:
export UBOOT_CFG_CORTEXR=am69_sk_r5_defconfig
export UBOOT_CFG_CORTEXA=am69_sk_a72_defconfig
For J742S2-EVM, use the following U_BOOT_CFG instead:
.. prompt:: bash
export UBOOT_CFG_CORTEXR=j742s2_evm_r5_defconfig
export UBOOT_CFG_CORTEXA=j742s2_evm_a72_defconfig
.. j784s4_evm_rst_include_start_build_steps
1. Trusted Firmware-A
@@ -143,14 +155,21 @@ variant (GP, HS-FS, HS-SE) requires a different source for these files.
* tiboot3-j784s4-gp-evm.bin from :ref:`step 3.1 <j784s4_evm_rst_u_boot_r5>`
* tispl.bin_unsigned, u-boot.img_unsigned from :ref:`step 3.2 <j784s4_evm_rst_u_boot_a72>`
.. note::
For J742S2, GP variant is not available.
- HS-FS
* tiboot3-j784s4-hs-fs-evm.bin from :ref:`step 3.1 <j784s4_evm_rst_u_boot_r5>`
* tiboot3-j742s2-hs-fs-evm.bin from :ref:`step 3.1 <j784s4_evm_rst_u_boot_r5>`
* tispl.bin, u-boot.img from :ref:`step 3.2 <j784s4_evm_rst_u_boot_a72>`
- HS-SE
* tiboot3-j784s4-hs-evm.bin from :ref:`step 3.1 <j784s4_evm_rst_u_boot_r5>`
* tiboot3-j742s2-hs-evm.bin from :ref:`step 3.1 <j784s4_evm_rst_u_boot_r5>`
* tispl.bin, u-boot.img from :ref:`step 3.2 <j784s4_evm_rst_u_boot_a72>`
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