On Tue May 6, 2025 at 4:11 PM IST, Beleswar Padhi wrote:
> Pack the HSM firmware in tispl.bin fit image so that it can be unloaded
> and used by R5 SPL to boot the HSM core. By default, point to the
> firmware for HS-SE device type. This needs to be changed to point to
> appropriate firmware when using a different device type.
>
> Signed-off-by: Beleswar Padhi <b-pa...@ti.com>
> ---
> v2: Changelog:
> None to this patch.
>
> Link to v1:
> https://lore.kernel.org/all/20250422095430.363792-4-b-pa...@ti.com/
>
> arch/arm/dts/k3-j721s2-binman.dtsi | 12 ++++++++++++
> arch/arm/dts/k3-j784s4-binman.dtsi | 14 ++++++++++++++
> 2 files changed, 26 insertions(+)
>
> diff --git a/arch/arm/dts/k3-j721s2-binman.dtsi
> b/arch/arm/dts/k3-j721s2-binman.dtsi
> index 73af184d27e..9c8b29f53bb 100644
> --- a/arch/arm/dts/k3-j721s2-binman.dtsi
> +++ b/arch/arm/dts/k3-j721s2-binman.dtsi
> @@ -273,6 +273,14 @@
>
> };
> };
> +#ifdef CONFIG_K3_HSM_FW
> + hsm {
> + hsm: blob-ext {
> + filename =
> "ti-hsm/hsm-demo-firmware-j721s2-hs.bin";
> + };
> + };
> +#endif
> +
Why do we have the hsm binaries pre-signed? Having a common binary like
the DM with signing using ti-secure might be a better option.
Regards,
> dm {
> ti-secure {
> content = <&dm>;
> @@ -306,7 +314,11 @@
> conf-0 {
> description =
> "k3-j721s2-common-proc-board";
> firmware = "atf";
> +#ifdef CONFIG_K3_HSM_FW
> + loadables = "hsm", "tee", "dm", "spl";
> +#else
> loadables = "tee", "dm", "spl";
> +#endif
> fdt = "fdt-0";
> };
> };
> diff --git a/arch/arm/dts/k3-j784s4-binman.dtsi
> b/arch/arm/dts/k3-j784s4-binman.dtsi
> index cb1fbc65923..7c8e580a8a3 100644
> --- a/arch/arm/dts/k3-j784s4-binman.dtsi
> +++ b/arch/arm/dts/k3-j784s4-binman.dtsi
> @@ -159,6 +159,16 @@
>
> fit {
> images {
> +
> +#ifdef CONFIG_K3_HSM_FW
> + hsm {
> + hsm: blob-ext {
> + filename =
> "ti-hsm/hsm-demo-firmware-j784s4-hs.bin";
> + };
> + };
> +
> +#endif
> +
> dm {
> ti-secure {
> content = <&dm>;
> @@ -194,7 +204,11 @@
> conf-0 {
> description = BOARD_DESCRIPTION;
> firmware = "atf";
> +#ifdef CONFIG_K3_HSM_FW
> + loadables = "hsm", "tee", "dm", "spl";
> +#else
> loadables = "tee", "dm", "spl";
> +#endif
> fdt = "fdt-0";
> };
> };
