3.1.1.2. Build

Build BL-1

Note

The following commands are intended to be run from the root of the TF-A tree unless otherwise specified. The root of the TF-A tree is the top-level directory and can be identified by looking for the “licenses” directory.

$ cd <path to tf-a dir>

$ make CROSS_COMPILE="$CROSS_COMPILE_64" ARCH=aarch64 PLAT=k3 TARGET_BOARD=am62l am62l_bl1

<or to build bl-1 and bl-31 binaries from TF-A repo>

     $ make CROSS_COMPILE="$CROSS_COMPILE_64" ARCH=aarch64 PLAT=k3 TARGET_BOARD=am62l

3.1.1.2.1. Build U-Boot

Note

The following commands are intended to be run from the root of the U-Boot tree unless otherwise specified. The root of the U-Boot tree is the top-level directory and can be identified by looking for the “MAINTAINERS” file.

Prebuilt Images

Several prebuilt images are required from the TI Processor SDK for building U-Boot on K3 based platforms.

TF-A (BL-1 and BL-31): Refer to ARM Trusted Firmware-A for more information
ti-linux-firmware (BINMAN_INDIRS): Prebuilt TIFS binaries are available in ti-linux-firmware.

All of these binaries are available in the SDK at <path to tisdk>/board-support/prebuilt-images>

Board	SD / eMMC / UART / OSPI / USB DFU / USB MSC
AM62LX EVM	`am62lx_evm_defconfig`

Note

Where to get the sources: Getting the Source Code

$ export UBOOT_DIR=<path-to-ti-u-boot>
$ export TI_LINUX_FW_DIR=<path-to-ti-linux-firmware>
$ export TFA_DIR=<path-to-arm-trusted-firmware>
$ export OPTEE_DIR=<path-to-ti-optee-os>

Note

The instructions below assume all binaries are built manually. For instructions to build bl1.bin or bl31.bin go to: ARM Trusted Firmware-A.

BINMAN_INDIRS can point to <path-to-tisdk>/board-support/prebuilt-images to use the pre-built binaries that come in the pre-built SDK.

$ cd $UBOOT_DIR
$ make CROSS_COMPILE="$CROSS_COMPILE_64" am62lx_evm_defconfig
$ make CROSS_COMPILE="$CROSS_COMPILE_64" \
   BL1=$TFA_DIR/build/k3/am62l/release/bl1.bin \
   BL31=$TFA_DIR/build/k3/am62l/release/bl31.bin \
   BINMAN_INDIRS=$TI_LINUX_FW_DIR \
   TEE=$OPTEE_DIR/out/arm-plat-k3/core/tee-pager_v2.bin

Note

BINMAN_INDIRS is used to fetch the TIFS binaries from <path to ti-linux-firmware>/ti-sysfw/. If using the SDK, BINMAN_INDIRS can point to <path to SDK>/board-support/prebuilt-images. Else any folder where SYSFW binaries are present in <path to folder>/ti-sysfw/ can be used. Please make sure to use the absolute path.