LS1043ARDB - How to deploy TF-A binaries in NAND flash

Trusted Firmware for Cortex-A (TF-A) is an implementation of EL3 secure firmware. TF-A replaces PPA in secure firmware role.

Please note the steps listed in this topic can only be performed with LSDK 18.12 and newer releases.

To migrate to the TF-A boot flow from the previous boot flow (with PPA), you need to compile the TF-A binaries, bl2_<boot_mode>.pbl and fip.bin, and flash these binaries on the specific boot medium on the board.

For NAND boot, you need to compile the following TF-A binaries.

TF-A binary name	Components
bl2_nand	BL2 binary: Platform initialization binary RCW binary for NAND boot
fip.bin	BL31: Secure runtime firmware BL32: Trusted OS, for example, OPTEE (optional) BL33: U-Boot/UEFI image

Follow these steps to compile and deploy TF-A binaries (bl2_nand.pbl and fip.bin) on the NAND flash.

Compile PBL binary from RCW source file
Compile U-Boot binary
[Optional] Compile OPTEE binary
Compile TF-A binaries (bl2_nand.pbl and fip.bin) for NAND boot
Program TF-A binaries to the NAND flash

Step 1: Compile PBL binary from RCW source file

You need to compile the rcw_1600_nandboot.bin binary to build the bl2_nand.pbl binary.

Clone the  rcw repository and compile the PBL binary.

$ git clone https://source.codeaurora.org/external/qoriq/qoriq-components/rcw
$ cd rcw
$ git checkout -b <new branch name> <LSDK tag>. For example, $ git checkout -b LSDK-19.03 LSDK-19.03
$ cd ls1043ardb
If required, make changes to the rcw files.
$ make

The compiled PBL binary for NAND boot on LS1043ARDB, rcw_1600_nandboot.bin, is available at rcw/ls1043ardb/RR_FQPP_1455/.

See the rcw/ls1043ardb/README file for an explanation of the naming convention for the directories that contain the RCW source and binary files.

Step 2: Compile U-Boot binary

You need to compile the u-boot.bin binary to build the fip.bin binary.

Clone the u-boot repository and compile the U-Boot binary for TF-A.

$ git clone https://source.codeaurora.org/external/qoriq/qoriq-components/u-boot.git
$ cd u-boot
$ git checkout -b <new branch name> LSDK-<LSDK version>. For example, $ git checkout -b LSDK-19.03 LSDK-19.03
$ export ARCH=arm64
$ export CROSS_COMPILE=aarch64-linux-gnu-
$ make distclean
$ make ls1043ardb_tfa_defconfig
$ make

If the make command shows the error "*** Your GCC is older than 6.0 and is not supported", ensure that you are using Ubuntu 18.04 64-bit version for building the LSDK 18.12 U-Boot binary.

The compiled U-Boot binary, u-boot.bin, is available at u-boot/.

Step 3: [Optional] Compile OPTEE binary

You need to compile the tee.bin binary to build fip.bin with OPTEE. However, OPTEE is optional, you can skip the procedure to compile OPTEE if you want to build the FIP binary without OPTEE.

Clone the optee_os repository and build the OPTEE binary.

$ git clone https://source.codeaurora.org/external/qoriq/qoriq-components/optee_os
$ cd optee_os
$ git checkout -b <new branch name> LSDK-<LSDK version>. For example, $ git checkout -b LSDK-19.03 LSDK-19.03
$ export ARCH=arm
$ export CROSS_COMPILE=aarch64-linux-gnu-
$ make CFG_ARM64_core=y PLATFORM=ls-ls1043ardb
$ aarch64-linux-gnu-objcopy -v -O binary out/arm-plat-ls/core/tee.elf out/arm-plat-ls/core/tee.bin

The compiled OPTEE image, tee.bin, is available at optee_os/out/arm-plat-ls/core/.

Step 4: Compile TF-A binaries for NAND boot

Clone the atf repository and compile the TF-A binaries, bl2_nand.pbl and fip.bin.

$ git clone https://source.codeaurora.org/external/qoriq/qoriq-components/atf
$ cd atf
$ git checkout -b <new branch name> LSDK-<LSDK version>. For example, $ git checkout -b LSDK-19.03 LSDK-19.03
$ export ARCH=arm64
$ export CROSS_COMPILE=aarch64-linux-gnu-
Build BL2 binary with OPTEE.
- $ make PLAT=ls1043ardb bl2 SPD=opteed BOOT_MODE=nand BL32=<path_to_optee_binary>/tee.bin pbl RCW=<path_to_rcw_binary>/rcw_1600_nandboot.bin
  The compiled BL2 images, bl2.bin and bl2_nand.pbl are available at atf/build/ls1043ardb/release/.
  For any update in the BL2 source code or RCW binary, the bl2_nand.pbl binary needs to be recompiled.
```
To compile the BL2 binary without OPTEE:
$ make PLAT=ls1043ardb bl2 BOOT_MODE=nand pbl RCW=<path_to_rcw_binary>/rcw_1600_nandboot.bin
                           
```

Build FIP binary with OPTEE and without trusted board boot.

$ make PLAT=ls1043ardb fip BL33=<path_to_u-boot_binary>/u-boot.bin SPD=opteed BL32=<path_to_optee_binary>/tee.bin

The compiled BL31 and FIP binaries, bl31.bin, fip.bin, are available at atf/build/ls1043ardb/release/.

For any update in the BL31, BL32, or BL33 binaries, the fip.bin binary needs to be recompiled.

To compile the FIP binary without OPTEE and without trusted board boot:

$ make PLAT=ls1043ardb fip BOOT_MODE=nand BL33=<path_to_u-boot_binary>/u-boot.bin

To compile the FIP binary with trusted board boot, refer the read me at <atf repository>/plat/nxp/README.TRUSTED_BOOT

Step 5: Program TF-A binaries to NAND flash

Boot LS1043ARDB from NOR flash. Ensure that the switches are set to boot the board from NOR bank 0. For booting from NOR bank 0, switch settings are as follows:
- SW3[1:8] = 10110011
- SW4[1:8] = 00010010
- SW5[1:8] = 10100010
Boot from NOR bank 0: => cpld reset
For LS1043ARDB, in boot log, you'll see:
Board: LS1043ARDB, boot from vBank 0

Set up Ethernet connection

When board boots up, U-Boot prints a list of enabled Ethernet interfaces.

FM1@DTSEC1, FM1@DTSEC2, FM1@DTSEC3 [PRIME], FM1@DTSEC4, FM1@DTSEC5

Set server IP address to the IP address of the host machine on which you have configured the TFTP server.
=> setenv serverip <ipaddress1>

Set ethact and ethprime as the Ethernet interface connected to the TFTP server.

See LS1043ARDB Ethernet and FMC port mapping for the mapping of Ethernet port names appearing on the chassis front panel with the port names in U-Boot and Linux.

=> setenv ethprime <name of interface connected to TFTP server>

For example:

=> setenv ethprime FM1@DTSEC4

=> setenv ethact <name of interface connected to TFTP server>

For example:

=> setenv ethact FM1@DTSEC4

Set IP address of the board. You can set a static IP address or, if the board can connect to a dhcp server, you can use the dhcp command.
Static IP address assignment:
=> setenv ipaddr <ipaddress2>
=> setenv netmask <subnet mask>
Dynamic IP address assignment:
=> dhcp
Save the settings. => saveenv
Check the connection between the board and the TFTP server.

=> ping $serverip

Using FM1@DTSEC4 device

host 192.168.1.1 is alive

Load TF-A binaries from the TFTP server

For details about the flash image layout for TF-A binaries, refer LSDK memory layout for TF-A boot flow.

Flash bl2_nand.pbl:
- => tftp 82000000 bl2_nand.pbl
- => nand erase 0x0 $filesize;nand write 0x82000000 0x0 $filesize;
Flash fip.bin:
- => tftp 82000000 fip.bin
- => nand erase 0x100000 $filesize;nand write 0x82000000 0x100000 $filesize;
Boot from NAND flash: => cpld reset nand
LS1043ARDB will boot with TF-A. In the boot log, you will see:
Fixed DDR on board
NOTICE: 2 GB DDR4, 32-bit, CL=11, ECC off
NOTICE: BL2: v1.5(release):LSDK-19.03
NOTICE: BL2: Built : 14:46:39, Jun 13 2019
NOTICE: BL31: v1.5(release):LSDK-19.03
NOTICE: BL31: Built : 14:52:37, Jun 13 2019
NOTICE: Welcome to LS1043 BL31 Phase

U-Boot 2018.09 (Jun 13 2019 - 12:27:15 +0530)
SoC: LS1043AE Rev1.1 (0x87920011)
Clock Configuration:
CPU0(A53):1600 MHz CPU1(A53):1600 MHz CPU2(A53):1600 MHz
CPU3(A53):1600 MHz
Bus: 400 MHz DDR: 1600 MT/s FMAN: 500 MHz
Reset Configuration Word (RCW):
00000000: 08100010 0a000000 00000000 00000000
00000010: 14550002 80004012 e0106000 c1002000
00000020: 00000000 00000000 00000000 00038800
00000030: 00000000 00001100 00000096 00000001
Model: LS1043A RDB Board
Board: LS1043ARDB, boot from NAND

LS1043ARDB - How to deploy TF-A binaries in NAND flash

LS1043ARDB - How to deploy TF-A binaries in NAND flash