Thanks Mattijs
On 12/5/2025 7:22 PM, Mattijs Korpershoek wrote:
Hi Udit,
Thank you for the patch.
On Fri, Dec 05, 2025 at 10:06, Udit Kumar <[email protected]> wrote:
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 <[email protected]>
---
Test logs
https://gist.github.com/uditkumarti/b2e23151728628805a680b6eab528e7c
Changelog:
Changes in v2:
- Removed extra =
- link to v1:
https://lore.kernel.org/all/[email protected]/
doc/board/ti/j784s4_evm.rst | 24 ++++++++++++++++++++++--
1 file changed, 22 insertions(+), 2 deletions(-)
diff --git a/doc/board/ti/j784s4_evm.rst b/doc/board/ti/j784s4_evm.rst
index 22442874110..69deeee1076 100644
--- a/doc/board/ti/j784s4_evm.rst
+++ b/doc/board/ti/j784s4_evm.rst
@@ -1,8 +1,8 @@
.. SPDX-License-Identifier: GPL-2.0-or-later OR BSD-3-Clause
.. sectionauthor:: Apurva Nandan <[email protected]>
-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 +104,15 @@ Set the variables corresponding to this platform:
export UBOOT_CFG_CORTEXR=am69_sk_r5_defconfig
export UBOOT_CFG_CORTEXA=am69_sk_a72_defconfig
+.. note::
+
+ 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
+
nitpick: Can't this be grouped in the same .. note:: block as for AM69
defconfigs ?
I tend to dislike multiple notes blocks one after another.
It is fine if you don't want to change this as it's a "personal preference".
Sure, will merge alone with AM69 section
.. j784s4_evm_rst_include_start_build_steps
1. Trusted Firmware-A
@@ -146,13 +160,19 @@ variant (GP, HS-FS, HS-SE) requires a different source
for these files.
- 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>`
+.. note::
+
+ For J742S2, GP variant is not available.
+
Can't this note be in the - GP section?
Just after:
"""
* tispl.bin_unsigned, u-boot.img_unsigned from :ref:`step 3.2
<j784s4_evm_rst_u_boot_a72>`
"""
In my opinion, it would make more sense than at the end of the
Target Images section.
Sure, will do this change in v3
Image formats
-------------
--
2.34.1
