SK-AM62B: BL31.bin / BL32.bin for AM62 HS-FS.

Rio Chan

Part Number: SK-AM62B

Champs:

In this doc: https://software-dl.ti.com/processor-sdk-linux/esd/AM62X/08_06_00_42/exports/docs/linux/Foundational_Components/U-Boot/UG-General-Info.html?highlight=am62x_evm_r5_defconfig

There is a section telling us as the following.

Sign bl31.bin binary found in $OPTEE_DIR/out/arm-plat-k3/core,
Sign tee-pager_v2.bin (bl32.bin) found in $TFA_DIR/build/k3/lite/release,
Sign ipc_echo_testb_mcu1_0_release_strip.xer5f found in $DMFW_DIR.

my question:

Q1. Are you sure the BL31.bin / BL32.bin will exist there even we never copy them from other place?

Q2. If we need to use the BL31/BL32.bin resident in those spec path, how to we generate them before doing signing?

BR Rio

over 2 years ago

0 Judith Mendez over 2 years ago

TI__Expert 8510 points

Hi BR,

Those instructions are for building U-boot directly from source.

So the following line:

Sign bl31.bin binary found in $OPTEE_DIR/out/arm-plat-k3/core, sign tee-pager_v2.bin (bl32.bin) found in $TFA_DIR/build/k3/lite/release, and ipc_echo_testb_mcu1_0_release_strip.xer5f found in $DMFW_DIR.

Assumes you build ATF: https://software-dl.ti.com/processor-sdk-linux/esd/AM62X/08_06_00_42/exports/docs/linux/Foundational_Components_ATF.html
and OPTEE: https://software-dl.ti.com/processor-sdk-linux/esd/AM62X/08_06_00_42/exports/docs/linux/Foundational_Components_OPTEE.html

Then you will have bl31.bin and bl323.bin in the correct output directories of their respective repos.

You do not have to build FW: ipc_echo_testb_mcu1_0_release_strip.xer5f, it will already be in the repo here: ti-linux-firmware Branch: ti-linux-firmware

This is to build all the components "manually". if you wish to quickly build and boot the board you could follow the steps here: https://software-dl.ti.com/processor-sdk-linux/esd/AM62X/08_06_00_42/exports/docs/linux/Overview/Top_Level_Makefile.html, to build the SDK.

~ Judith

Processors

Processors forum

SK-AM62B: BL31.bin / BL32.bin for AM62 HS-FS.