On 8/31/2026 2:03 PM, Beleswar Padhi wrote:
> Add a concise section for loading and booting the HSM M4F core in TI K3
> SoCs like J721S2 and J784S4.
>
> Signed-off-by: Beleswar Padhi <[email protected]>
> ---
> v6: Changelog:
> 1. New patch. Adds documentation for loading and booting the TI K3 HSM
> M4F remote processor.
>
> doc/board/ti/k3.rst | 134 ++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 134 insertions(+)
>
> diff --git a/doc/board/ti/k3.rst b/doc/board/ti/k3.rst
> index d3ecaf59909..d9603ef796d 100644
> --- a/doc/board/ti/k3.rst
> +++ b/doc/board/ti/k3.rst
> @@ -755,6 +755,140 @@ resorts to enabling for the entire DDR region:
> bootph-all;
> };
>
> +HSM M4F Loading
> +----------------
> +
> +Some K3 SoCs like J721S2 and J784S4 have a High Security Module (HSM) M4F
J742S2 as well
instead of adding as default please add a label and include in target SOC
https://elixir.bootlin.com/u-boot/v2026.10-rc2/source/doc/board/ti/k3.rst#L169
https://elixir.bootlin.com/u-boot/v2026.10-rc2/source/doc/board/ti/j784s4_evm.rst#L65
with these changes, for whole series
Reviewed-by: Udit Kumar <[email protected]>
> +core in the Wakeup Voltage Domain. The HSM M4 core is loaded at R5 SPL
>[..]
