| .. SPDX-License-Identifier: GPL-2.0+ |
| |
| U-Boot for Amlogic W400 (S922X) |
| =============================== |
| |
| W400 is a reference board manufactured by Amlogic with the following specification: |
| |
| - Amlogic S922X ARM Cortex-A53 dual-core + Cortex-A73 quad-core SoC |
| - 2GB DDR4 SDRAM |
| - 10/100 Ethernet (Internal PHY) |
| - 1x USB 3.0 Host |
| - eMMC |
| - SDcard |
| - Infrared receiver |
| - SDIO WiFi Module |
| - MIPI DSI Connector |
| - Audio HAT Connector |
| - PCI-E M.2 Connector |
| |
| Schematics are available from Amlogic on demand. |
| |
| U-Boot Compilation |
| ------------------ |
| |
| .. code-block:: bash |
| |
| $ export CROSS_COMPILE=aarch64-none-elf- |
| $ make w400_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 jethub-j100 /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-20180418 amlogic-u-boot |
| $ cd amlogic-u-boot |
| $ make g12b_w400_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/Linux_BSP/buildroot_openlinux_kernel_4.9_fbdev_20180706.tar.gz |
| $ tar xfz buildroot_openlinux_kernel_4.9_fbdev_20180706.tar.gz buildroot_openlinux_kernel_4.9_fbdev_20180706/bootloader |
| $ export BRDIR=$PWD/buildroot_openlinux_kernel_4.9_fbdev_20180706 |
| $ 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/g12b_w400_v1/firmware/acs.bin fip/ |
| $ cp $BRDIR/bootloader/uboot-repo/bl2/bin/g12b/bl2.bin fip/ |
| $ cp $BRDIR/bootloader/uboot-repo/bl30/bin/g12b/bl30.bin fip/ |
| $ cp $BRDIR/bootloader/uboot-repo/bl31_1.3/bin/g12b/bl31.img fip/ |
| $ cp $FIPDIR/g12b/ddr3_1d.fw fip/ |
| $ cp $FIPDIR/g12b/ddr4_1d.fw fip/ |
| $ cp $FIPDIR/g12b/ddr4_2d.fw fip/ |
| $ cp $FIPDIR/g12b/diag_lpddr4.fw fip/ |
| $ cp $FIPDIR/g12b/lpddr4_1d.fw fip/ |
| $ cp $FIPDIR/g12b/lpddr4_2d.fw fip/ |
| $ cp $FIPDIR/g12b/piei.fw fip/ |
| $ cp $FIPDIR/g12b/aml_ddr.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/g12b/aml_encrypt_g12b --bl30sig --input fip/bl30_new.bin \ |
| --output fip/bl30_new.bin.g12a.enc \ |
| --level v3 |
| $ $FIPDIR/g12b/aml_encrypt_g12b --bl3sig --input fip/bl30_new.bin.g12a.enc \ |
| --output fip/bl30_new.bin.enc \ |
| --level v3 --type bl30 |
| $ $FIPDIR/g12b/aml_encrypt_g12b --bl3sig --input fip/bl31.img \ |
| --output fip/bl31.img.enc \ |
| --level v3 --type bl31 |
| $ $FIPDIR/g12b/aml_encrypt_g12b --bl3sig --input fip/bl33.bin --compress lz4 \ |
| --output fip/bl33.bin.enc \ |
| --level v3 --type bl33 |
| $ $FIPDIR/g12b/aml_encrypt_g12b --bl2sig --input fip/bl2_new.bin \ |
| --output fip/bl2.n.bin.sig |
| $ $FIPDIR/g12b/aml_encrypt_g12b --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 \ |
| --ddrfw8 fip/aml_ddr.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 |
