On June 18, 2024 thus sayeth Dhruva Gole:
> Add support for packaging the TIFS Stub as it's required for basic Low
> Power Modes like Deep Sleep.
>
> Acked-by: Neha Malcom Francis <n-fran...@ti.com>
> Signed-off-by: Dhruva Gole <d-g...@ti.com>
> ---
>
> No changes from v1, just picked Neha's ack and rebased on master again.
> Link to v1:
> https://lore.kernel.org/u-boot/20240612062351.3690091-1-d-g...@ti.com/
>
> arch/arm/dts/k3-am625-beagleplay-u-boot.dtsi | 33 +++++++++++++++++++-
> 1 file changed, 32 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/dts/k3-am625-beagleplay-u-boot.dtsi
> b/arch/arm/dts/k3-am625-beagleplay-u-boot.dtsi
> index fb2032068d1c..5e2248a4a668 100644
> --- a/arch/arm/dts/k3-am625-beagleplay-u-boot.dtsi
> +++ b/arch/arm/dts/k3-am625-beagleplay-u-boot.dtsi
> @@ -69,6 +69,23 @@
> };
> };
>
> + tifsstub-gp {
> + filename = "tifsstub.bin_gp";
> + ti-secure-rom {
> + content = <&tifsstub_gp>;
> + core = "secure";
> + load = <0x60000>;
> + sw-rev = <CONFIG_K3_X509_SWRV>;
> + keyfile = "ti-degenerate-key.pem";
> + tifsstub;
> + };
> + tifsstub_gp: tifsstub-gp.bin {
> + filename = "ti-sysfw/ti-fs-stub-firmware-am62x-gp.bin";
> + type = "blob-ext";
> + optional;
> + };
> + };
> +
> ti-spl_unsigned {
> filename = "tispl.bin_unsigned";
> pad-byte = <0xff>;
> @@ -105,6 +122,19 @@
> };
> };
>
> + tifsstub-gp {
> + description = "tifsstub";
> + type = "firmware";
> + arch = "arm32";
> + compression = "none";
> + os = "tifsstub-gp";
> + load = <0x9dc00000>;
> + entry = <0x9dc00000>;
Is this stub position independent? Or is this address compiled in at
build time? We have some variants of 62x that don't have these addresses
backed by DRAM.
~Bryan
> + blob-ext {
> + filename = "tifsstub.bin_gp";
> + };
> + };
> +
> dm {
> description = "DM binary";
> type = "firmware";
> @@ -148,7 +178,8 @@
> conf-0 {
> description = "k3-am625-beagleplay";
> firmware = "atf";
> - loadables = "tee", "dm", "spl";
> + loadables = "tee", "dm", "spl",
> + "tifsstub-gp";
> fdt = "fdt-0";
> };
> };
>
> base-commit: 16324b43db3f2b4fbbc3b701893fcfc4104f33fb
> --
> 2.34.1
>
