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.. SPDX-License-Identifier: GPL-2.0+
U-Boot for Amlogic SEI610 (S905X3)
==================================
SEI610 is a customer board manufactured by SEI Robotics with the following specification:
- Amlogic S905X3 ARM Cortex-A55 quad-core SoC
- 2GB DDR4 SDRAM
- 10/100 Ethernet (Internal PHY)
- 1x USB 3.0 Host
- 1x USB Type-C DRD
- 1x FTDI USB Serial Debug Interface
- eMMC
- SDcard
- Infrared receiver
- SDIO WiFi Module
U-Boot Compilation
------------------
.. code-block:: bash
$ export CROSS_COMPILE=aarch64-none-elf-
$ make sei610_defconfig
$ make
U-Boot Signing with Pre-Built FIP repo
--------------------------------------
.. code-block:: bash
$ git clone https://github.com/LibreELEC/amlogic-boot-fip --depth=1
$ cd amlogic-boot-fip
$ mkdir my-output-dir
$ ./build-fip.sh sei610 /path/to/u-boot/u-boot.bin my-output-dir
U-Boot Manual Signing
---------------------
Amlogic does not provide sources for the firmware and tools needed to create a bootloader
image so it is necessary to obtain binaries from sources published by the board vendor:
.. code-block:: bash
$ wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz
$ wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
$ tar xvfJ gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz
$ tar xvfJ gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
$ export PATH=$PWD/gcc-linaro-aarch64-none-elf-4.8-2013.11_linux/bin:$PWD/gcc-linaro-arm-none-eabi-4.8-2013.11_linux/bin:$PATH
$ git clone https://github.com/BayLibre/u-boot.git -b buildroot-openlinux-4.9-g12a-201904 amlogic-u-boot
$ cd amlogic-u-boot
$ make sm1_ac200_v1_defconfig
$ make
$ export UBOOTDIR=$PWD
Download the latest Amlogic buildroot package and extract it:
.. code-block:: bash
$ wget http://openlinux2.amlogic.com:8000/ARM/filesystem/buildroot-openlinux-A113-201901.tgz
$ tar xfz buildroot-openlinux-A113-201901.tgz buildroot-openlinux-A113-201901/bootloader
$ export BRDIR=$PWD/buildroot-openlinux-A113-201901
$ export FIPDIR=$BRDIR/bootloader/uboot-repo/fip
Go back to the mainline U-Boot source tree then:
.. code-block:: bash
$ mkdir fip
$ wget https://github.com/BayLibre/u-boot/releases/download/v2017.11-libretech-cc/blx_fix_g12a.sh -O fip/blx_fix.sh
$ cp $UBOOTDIR/build/scp_task/bl301.bin fip/
$ cp $UBOOTDIR/build/board/amlogic/g12a_u200_v1/firmware/acs.bin fip/
$ cp $BRDIR/bootloader/uboot-repo/bl2/bin/g12a/bl2.bin fip/
$ cp $BRDIR/bootloader/uboot-repo/bl30/bin/g12a/bl30.bin fip/
$ cp $BRDIR/bootloader/uboot-repo/bl31_1.3/bin/g12a/bl31.img fip/
$ cp $FIPDIR/g12a/ddr3_1d.fw fip/
$ cp $FIPDIR/g12a/ddr4_1d.fw fip/
$ cp $FIPDIR/g12a/ddr4_2d.fw fip/
$ cp $FIPDIR/g12a/diag_lpddr4.fw fip/
$ cp $FIPDIR/g12a/lpddr4_1d.fw fip/
$ cp $FIPDIR/g12a/lpddr4_2d.fw fip/
$ cp $FIPDIR/g12a/piei.fw fip/
$ cp u-boot.bin fip/bl33.bin
$ sh fip/blx_fix.sh \
fip/bl30.bin \
fip/zero_tmp \
fip/bl30_zero.bin \
fip/bl301.bin \
fip/bl301_zero.bin \
fip/bl30_new.bin \
bl30
$ sh fip/blx_fix.sh \
fip/bl2.bin \
fip/zero_tmp \
fip/bl2_zero.bin \
fip/acs.bin \
fip/bl21_zero.bin \
fip/bl2_new.bin \
bl2
$ $FIPDIR/g12a/aml_encrypt_g12a --bl30sig --input fip/bl30_new.bin \
--output fip/bl30_new.bin.g12a.enc \
--level v3
$ $FIPDIR/g12a/aml_encrypt_g12a --bl3sig --input fip/bl30_new.bin.g12a.enc \
--output fip/bl30_new.bin.enc \
--level v3 --type bl30
$ $FIPDIR/g12a/aml_encrypt_g12a --bl3sig --input fip/bl31.img \
--output fip/bl31.img.enc \
--level v3 --type bl31
$ $FIPDIR/g12a/aml_encrypt_g12a --bl3sig --input fip/bl33.bin --compress lz4 \
--output fip/bl33.bin.enc \
--level v3 --type bl33
$ $FIPDIR/g12a/aml_encrypt_g12a --bl2sig --input fip/bl2_new.bin \
--output fip/bl2.n.bin.sig
$ $FIPDIR/g12a/aml_encrypt_g12a --bootmk \
--output fip/u-boot.bin \
--bl2 fip/bl2.n.bin.sig \
--bl30 fip/bl30_new.bin.enc \
--bl31 fip/bl31.img.enc \
--bl33 fip/bl33.bin.enc \
--ddrfw1 fip/ddr4_1d.fw \
--ddrfw2 fip/ddr4_2d.fw \
--ddrfw3 fip/ddr3_1d.fw \
--ddrfw4 fip/piei.fw \
--ddrfw5 fip/lpddr4_1d.fw \
--ddrfw6 fip/lpddr4_2d.fw \
--ddrfw7 fip/diag_lpddr4.fw \
--level v3
Then write U-Boot to SD or eMMC with:
.. code-block:: bash
$ DEV=/dev/boot_device
$ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=512 skip=1 seek=1
$ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=1 count=440
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