Verdin AM62P Module

Quick Start

  • Setup environment variables

  • Get binary-only TI Linux firmware

  • Build the ARM trusted firmware binary

  • Build the OPTEE binary

  • Build U-Boot for the R5

  • Build U-Boot for the A53

  • Flash to eMMC

  • Boot

Setup environment

Suggested current toolchains are ARM 11.3 (https://developer.arm.com/downloads/-/arm-gnu-toolchain-downloads):

$ export CROSS_COMPILE_32=<path/to/arm/toolchain/bin/>arm-none-linux-gnueabihf-
$ export CROSS_COMPILE_64=<path/to/arm64/toolchain/bin/>aarch64-none-linux-gnu-

Get the TI Linux Firmware

$ echo "Downloading TI Linux Firmware..."
$ git clone -b ti-linux-firmware https://git.ti.com/git/processor-firmware/ti-linux-firmware.git

Get and Build the ARM Trusted Firmware (Trusted Firmware A)

$ echo "Downloading and building TF-A..."
$ git clone https://git.trustedfirmware.org/TF-A/trusted-firmware-a.git
$ cd trusted-firmware-a

Then build ATF (TF-A):

$ export CROSS_COMPILE="$CROSS_COMPILE_64"
$ make PLAT=k3 K3_PM_SYSTEM_SUSPEND=1 TARGET_BOARD=lite SPD=opteed

Get and Build OPTEE

$ echo "Downloading and building OPTEE..."
$ git clone https://github.com/OP-TEE/optee_os.git
$ cd optee_os

Then build OPTEE:

$ export CROSS_COMPILE="$CROSS_COMPILE_32"
$ export CROSS_COMPILE64="$CROSS_COMPILE_64"
$ make PLATFORM=k3-am62px CFG_ARM64_core=y

Build U-Boot for R5

$ export CROSS_COMPILE="$CROSS_COMPILE_32"
$ export BINMAN_INDIRS=<path/to/ti-linux-firmware>
$ make O=/tmp/verdin-am62p-r5 verdin-am62p_r5_defconfig
$ make O=/tmp/verdin-am62p-r5

Build U-Boot for A53

$ export CROSS_COMPILE=$CROSS_COMPILE_64
$ export BL31=<path/to/atf>/build/k3/lite/release/bl31.bin
$ export TEE=<path/to/optee>/out/arm-plat-k3/core/tee-pager_v2.bin
$ export BINMAN_INDIRS="<path/to/ti-linux-firmware> /tmp/verdin-am62p-r5"
$ make O=/tmp/verdin-am62p-a53 verdin-am62p_a53_defconfig
$ make O=/tmp/verdin-am62p-a53

Flash to eMMC

=> 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

As a convenience, instead of having to remember all those addresses and sizes, one may also use the update U-Boot wrappers:

=> tftpboot ${loadaddr} tiboot3.bin
=> run update_tiboot3

=> tftpboot ${loadaddr} tispl.bin
=> run update_tispl

=> tftpboot ${loadaddr} u-boot.img
=> run update_uboot

Boot

Output:

U-Boot SPL 2025.04-00006-g51dc98d36470 (May 12 2025 - 15:46:57 +0100) SYSFW ABI: 4.0 (firmware rev 0x000b ‘11.0.7–v11.00.07 (Fancy Rat)’) Changed A53 CPU frequency to 1250000000Hz (U grade) in DT SPL initial stack usage: 17080 bytes Trying to boot from MMC1 Authentication passed Authentication passed Authentication passed Loading Environment from nowhere… OK init_env from device 9 not supported! Authentication passed Authentication passed Starting ATF on ARM64 core…

NOTICE: BL31: v2.12.0(release):v2.12.0-1106-g4301798db096 NOTICE: BL31: Built : 10:57:58, May 9 2025 I/TC: I/TC: OP-TEE version: 4.6.0-18-g76d920d354df (gcc version 12.3.1 20230626 (Arm GNU Toolchain 12.3.Rel1 (Build arm-12.35))) #4 Tue May 6 19:48:13 UTC 2025 aarch64 I/TC: WARNING: This OP-TEE configuration might be insecure! I/TC: WARNING: Please check https://optee.readthedocs.io/en/latest/architecture/porting_guidelines.html I/TC: Primary CPU initializing I/TC: GIC redistributor base address not provided I/TC: Assuming default GIC group status and modifier I/TC: SYSFW ABI: 4.0 (firmware rev 0x000b ‘11.0.7–v11.00.07 (Fancy Rat)’) I/TC: Activated SA2UL device I/TC: Enabled firewalls for SA2UL TRNG device I/TC: SA2UL TRNG initialized I/TC: SA2UL Drivers initialized I/TC: HUK Initialized I/TC: Primary CPU switching to normal world boot

U-Boot SPL 2025.04-00006-g51dc98d36470 (May 12 2025 - 15:47:54 +0100) SYSFW ABI: 4.0 (firmware rev 0x000b ‘11.0.7–v11.00.07 (Fancy Rat)’) SPL initial stack usage: 1760 bytes HW CFG: 0x00 Trying to boot from MMC1 Authentication passed Authentication passed

U-Boot 2025.04-00006-g51dc98d36470 (May 12 2025 - 15:47:54 +0100)

SoC: AM62PX SR1.0 HS-FS DRAM: 2 GiB Core: 147 devices, 31 uclasses, devicetree: separate MMC: mmc@fa10000: 0, mmc@fa00000: 1 Loading Environment from MMC… Reading from MMC(0)… OK In: serial@2800000 Out: serial@2800000 Err: serial@2800000 Model: Toradex 0099 Verdin AM62P Quad 2GB WB IT V1.0A Serial#: 15664919 Carrier: Toradex Dahlia V1.1D, Serial# 11287149 am65_cpsw_nuss ethernet@8000000: K3 CPSW: nuss_ver: 0x6BA01903 cpsw_ver: 0x6BA81903 ale_ver: 0x00290105 Ports:2 Setting variant to wifi Net: Warning: ethernet@8000000port@1 MAC addresses don’t match: Address in ROM is 58:a1:5f:b8:93:f9 Address in environment is 00:14:2d:ef:07:17 eth0: ethernet@8000000port@1 [PRIME]Could not get PHY for mdio@f00: addr 7 am65_cpsw_nuss_port ethernet@8000000port@2: phy_connect() failed

Hit any key to stop autoboot: 0 Verdin AM62P #