1. Installing the PSDKLA:

wget https://software-dl.ti.com/jacinto7/esd/processor-sdk-linux-jacinto7/08_00_00_08/exports/ti-processor-sdk-linux-j7-evm-08_00_00_08-Linux-x86-Install.bin
chmod+x ti-processor-sdk-linux-j7-evm-08_00_00_08-Linux-x86-Install.bin
./ti-processor-sdk-linux-j7-evm-08_00_00_08-Linux-x86-Install.bin

From here on the installation directory will be referred to as $PSDKLA

2. Building U-Boot for HS devices:

cd $PSDKLA

Open the file: Rules.make & Change the below variables:

From PLATFORM=j7-evm to PLATFORM=j7-hs-evm
From UBOOT_MACHINE=j721e_evm_a72_defconfig to UBOOT_MACHINE=j721e_hs_evm_a72_defconfig
From UBOOT_MACHINE_R5=j721e_evm_r5_defconfig to UBOOT_MACHINE=j721e_hs_evm_r5_defconfig

Building the u-boot using the below command (this is the same as GP device building):

make u-boot

Output: The above command will generate 3 binaries:

$PSDKLA/board-support/u-boot_build/a72/u-boot.img_HS
$PSDKLA/board-support/u-boot_build/a72/tispl.bin_HS
$PSDKLA/board-support/u-boot_build/r5/tiboot3.bin

3. Building sysfw.itb for HS devices:

cd $PSDKLA
make sysfw-image_clean
make sysfw-image HS=1 ENABLE_TRACE=1


HS=1 specifies that build is for HS Devices
ENABLE_TRACE=1 enables debug traces that will be useful for any DMSC related debug

Output:
The above command generates the binary:

$PSDKLA/board-support/k3-image-gen-2021.05/sysfw.itb

4. Copying the binaries to SD card

cp $PSDKLA/board-support/u-boot_build/a72/u-boot.img_HS /media/$USER/boot/u-boot.img
cp $PSDKLA/board-support/u-boot_build/a72/tispl.bin_HS /media/$USER/boot/tispl.bin
cp $PSDKLA/board-support/u-boot_build/r5/tiboot3.bin /media/$USER/boot/tiboot3.bin
cp $PSDKLA/board-support/k3-image-gen-2021.05/sysfw.itb /media/$USER/boot/sysfw.itb

DIP Switch settings for SD boot

Power on the EVM & connect the MAIN_UART micro USB port. You should see the traces on the first instance.

5. Booting from eMMC Boot0 Partition:

By default the u-boot j721e_hs_evm_a72_defconfig does not support the eMMC. We need to enable eMMC support in the j721e_hs_evm_a72_defconfig.

Apply the below patch:

2625.0001-configs-j721e_hs_evm_a72_defconfig-Enable-eMMC-booti.patch

cd $PSDKLA/board-support/u-boot-2021.01+gitAUTOINC+53e79d0e89-g53e79d0e89/
git am 0001-configs-j721e_hs_evm_a72_defconfig-Enable-eMMC-booti.patch
cd ../..
make u-boot

#Copy binaries to SD card
cp $PSDKLA/board-support/u-boot_build/a72/u-boot.img_HS /media/$USER/boot/u-boot.img
cp $PSDKLA/board-support/u-boot_build/a72/tispl.bin_HS /media/$USER/boot/tispl.bin
cp $PSDKLA/board-support/u-boot_build/r5/tiboot3.bin /media/$USER/boot/tiboot3.bin
cp $PSDKLA/board-support/k3-image-gen-2021.05/sysfw.itb /media/$USER/boot/sysfw.itb

mmc dev 0 1
fatload mmc 1 ${loadaddr} tiboot3.bin
mmc write ${loadaddr} 0x0 0x400
fatload mmc 1 ${loadaddr} tispl.bin
mmc write ${loadaddr} 0x400 0x1000
fatload mmc 1 ${loadaddr} u-boot.img
mmc write ${loadaddr} 0x1400 0x2000
fatload mmc 1 ${loadaddr} sysfw.itb
mmc write ${loadaddr} 0x3600 0x800

mmc partconf 0 1 1 1
mmc bootbus 0 2 0 0

#Power OFF the board

Change the dip switch settings for eMMC boot

6. Booting using UART

Copy below binaries to home directory of your Linux machine:

cp $PSDKLA/board-support/u-boot_build/a72/u-boot.img_HS ~/u-boot.img
cp $PSDKLA/board-support/u-boot_build/a72/tispl.bin_HS ~/tispl.bin
cp $PSDKLA/board-support/u-boot_build/r5/tiboot3.bin ~/tiboot3.bin
cp $PSDKLA/board-support/k3-image-gen-2021.05/sysfw.itb ~/sysfw.itb

Follow the FAQ: https://e2e.ti.com/support/processors/f/791/t/1003471

7. Booting from OSPI:

8.0 SDK OSPI boot is broken on HS devices. We need to apply the below patch to get OSPI boot functional.

8345.0001-ARM-mach-k3-sysfw-loader-Copy-sysfw.itb-to-OCRAM-in-.patch

cd $PSDKLA/board-support/u-boot-2021.01+gitAUTOINC+53e79d0e89-g53e79d0e89/
git am 0001-ARM-mach-k3-sysfw-loader-Copy-sysfw.itb-to-OCRAM-in-.patch
cd ../..
make u-boot

cp $PSDKLA/board-support/u-boot_build/a72/u-boot.img_HS /media/$USER/boot/u-boot.img
cp $PSDKLA/board-support/u-boot_build/a72/tispl.bin_HS /media/$USER/boot/tispl.bin
cp $PSDKLA/board-support/u-boot_build/r5/tiboot3.bin /media/$USER/boot/tiboot3.bin
cp $PSDKLA/board-support/k3-image-gen-2021.05/sysfw.itb /media/$USER/boot/sysfw.itb

Boot using SD card & halt at U-Boot prompt.
Execute the following commands - this will burn the boot images from MMC-SD to OSPI

sf probe
sf erase 0x0 0x4000000

sf probe
fatload mmc 1 ${loadaddr} tiboot3.bin
sf update $loadaddr 0x0 $filesize
fatload mmc 1 ${loadaddr} tispl.bin
sf update $loadaddr 0x80000 $filesize
fatload mmc 1 ${loadaddr} u-boot.img
sf update $loadaddr 0x280000 $filesize
fatload mmc 1 ${loadaddr} sysfw.itb
sf update $loadaddr 0x6C0000 $filesize

Change the dip switch settings for OSPI boot.
SW8: 00000000
SW9: 01000000