mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-21 02:33:07 +00:00
111 lines
3.8 KiB
ReStructuredText
111 lines
3.8 KiB
ReStructuredText
|
.. SPDX-License-Identifier: GPL-2.0+
|
||
|
|
|
||
|
|
U-Boot for LibreTech AC
|
||
|
|
=======================
|
||
|
|
|
||
|
|
LibreTech AC is a single board computer manufactured by Libre Technology
|
||
|
|
with the following specifications:
|
||
|
|
|
||
|
|
- Amlogic S805X ARM Cortex-A53 quad-core SoC @ 1.2GHz
|
||
|
|
- ARM Mali 450 GPU
|
||
|
|
- 512MiB DDR4 SDRAM
|
||
|
|
- 10/100 Ethernet
|
||
|
|
- HDMI 2.0 4K/60Hz display
|
||
|
|
- 40-pin GPIO header
|
||
|
|
- 4 x USB 2.0 Host
|
||
|
|
- eMMC, SPI NOR Flash
|
||
|
|
- Infrared receiver
|
||
|
|
|
||
|
|
Schematics are available on the manufacturer website.
|
||
|
|
|
||
|
|
U-Boot compilation
|
||
|
|
------------------
|
||
|
|
|
||
|
|
.. code-block:: bash
|
||
|
|
|
||
|
|
$ export CROSS_COMPILE=aarch64-none-elf-
|
||
|
|
$ make libretech-ac_defconfig
|
||
|
|
$ make
|
||
|
|
|
||
|
|
Image creation
|
||
|
|
--------------
|
||
|
|
|
||
|
|
Amlogic doesn't provide sources for the firmware and for tools needed
|
||
|
|
to create the bootloader image, so it is necessary to obtain them from
|
||
|
|
the git tree 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 libretech-ac amlogic-u-boot
|
||
|
|
$ cd amlogic-u-boot
|
||
|
|
$ wget https://raw.githubusercontent.com/BayLibre/u-boot/libretech-cc/fip/blx_fix.sh
|
||
|
|
$ make libretech_ac_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_20180418.tar.gz
|
||
|
|
$ tar xfz buildroot_openlinux_kernel_4.9_fbdev_20180418.tar.gz buildroot_openlinux_kernel_4.9_fbdev_20180418/bootloader
|
||
|
|
$ export BRDIR=$PWD/buildroot_openlinux_kernel_4.9_fbdev_20180418
|
||
|
|
|
||
|
|
Go back to mainline U-Boot source tree then :
|
||
|
|
|
||
|
|
.. code-block:: bash
|
||
|
|
|
||
|
|
$ mkdir fip
|
||
|
|
|
||
|
|
$ cp $UBOOTDIR/build/scp_task/bl301.bin fip/
|
||
|
|
$ cp $UBOOTDIR/build/board/amlogic/libretech_ac/firmware/bl21.bin fip/
|
||
|
|
$ cp $UBOOTDIR/build/board/amlogic/libretech_ac/firmware/acs.bin fip/
|
||
|
|
$ cp $BRDIR/bootloader/uboot-repo/bl2/bin/gxl/bl2.bin fip/
|
||
|
|
$ cp $BRDIR/bootloader/uboot-repo/bl30/bin/gxl/bl30.bin fip/
|
||
|
|
$ cp $BRDIR/bootloader/uboot-repo/bl31/bin/gxl/bl31.img fip/
|
||
|
|
$ cp u-boot.bin fip/bl33.bin
|
||
|
|
|
||
|
|
$ sh $UBOOTDIR/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
|
||
|
|
|
||
|
|
$ $BRDIR/bootloader/uboot-repo/fip/acs_tool.pyc fip/bl2.bin fip/bl2_acs.bin fip/acs.bin 0
|
||
|
|
|
||
|
|
$ sh $UBOOTDIR/blx_fix.sh \
|
||
|
|
fip/bl2_acs.bin \
|
||
|
|
fip/zero_tmp \
|
||
|
|
fip/bl2_zero.bin \
|
||
|
|
fip/bl21.bin \
|
||
|
|
fip/bl21_zero.bin \
|
||
|
|
fip/bl2_new.bin \
|
||
|
|
bl2
|
||
|
|
|
||
|
|
$ $BRDIR/bootloader/uboot-repo/fip/gxl/aml_encrypt_gxl --bl3enc --input fip/bl30_new.bin
|
||
|
|
$ $BRDIR/bootloader/uboot-repo/fip/gxl/aml_encrypt_gxl --bl3enc --input fip/bl31.img
|
||
|
|
$ $BRDIR/bootloader/uboot-repo/fip/gxl/aml_encrypt_gxl --bl3enc --input fip/bl33.bin
|
||
|
|
$ $BRDIR/bootloader/uboot-repo/fip/gxl/aml_encrypt_gxl --bl2sig --input fip/bl2_new.bin --output fip/bl2.n.bin.sig
|
||
|
|
$ $BRDIR/bootloader/uboot-repo/fip/gxl/aml_encrypt_gxl --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
|
||
|
|
|
||
|
|
and then write the image to SD with:
|
||
|
|
|
||
|
|
.. code-block:: bash
|
||
|
|
|
||
|
|
$ DEV=/dev/your_sd_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=444
|