board/amlogic/p212/README.libretech-ac

   1 U-Boot for LibreTech AC
   2 =======================
   3
   4 LibreTech AC is a single board computer manufactured by Libre Technology
   5 with the following specifications:
   6
   7  - Amlogic S805X ARM Cortex-A53 quad-core SoC @ 1.2GHz
   8  - ARM Mali 450 GPU
   9  - 512MiB DDR4 SDRAM
  10  - 10/100 Ethernet
  11  - HDMI 2.0 4K/60Hz display
  12  - 40-pin GPIO header
  13  - 4 x USB 2.0 Host
  14  - eMMC, SPI NOR Flash
  15  - Infrared receiver
  16
  17 Schematics are available on the manufacturer website.
  18
  19 Currently the U-Boot port supports the following devices:
  20  - serial
  21  - eMMC
  22  - Ethernet
  23  - USB
  24
  25 U-Boot compilation
  26 ==================
  27
  28  > export ARCH=arm
  29  > export CROSS_COMPILE=aarch64-none-elf-
  30  > make libretech-ac_defconfig
  31  > make
  32
  33 Image creation
  34 ==============
  35
  36 Amlogic doesn't provide sources for the firmware and for tools needed
  37 to create the bootloader image, so it is necessary to obtain them from
  38 the git tree published by the board vendor:
  39
  40  > wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz
  41  > wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
  42  > tar xvfJ gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz
  43  > tar xvfJ gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
  44  > 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:$PATH
  45  > git clone https://github.com/BayLibre/u-boot.git -b libretech-ac amlogic-u-boot
  46  > cd amlogic-u-boot
  47  > wget https://raw.githubusercontent.com/BayLibre/u-boot/libretech-cc/fip/blx_fix.sh
  48  > make libretech_ac_defconfig
  49  > make
  50  > export UBOOTDIR=$PWD
  51
  52 Download the latest Amlogic Buildroot package, and extract it :
  53  > wget http://openlinux2.amlogic.com:8000/ARM/filesystem/Linux_BSP/buildroot_openlinux_kernel_4.9_fbdev_20180418.tar.gz
  54  > tar xfz buildroot_openlinux_kernel_4.9_fbdev_20180418.tar.gz buildroot_openlinux_kernel_4.9_fbdev_20180418/bootloader
  55  > export BRDIR=$PWD/buildroot_openlinux_kernel_4.9_fbdev_20180418
  56
  57 Go back to mainline U-Boot source tree then :
  58  > mkdir fip
  59
  60  > cp $UBOOTDIR/build/scp_task/bl301.bin fip/
  61  > cp $UBOOTDIR/build/board/amlogic/libretech_ac/firmware/bl21.bin fip/
  62  > cp $UBOOTDIR/build/board/amlogic/libretech_ac/firmware/acs.bin fip/
  63  > cp $BRDIR/bootloader/uboot-repo/bl2/bin/gxl/bl2.bin fip/
  64  > cp $BRDIR/bootloader/uboot-repo/bl30/bin/gxl/bl30.bin fip/
  65  > cp $BRDIR/bootloader/uboot-repo/bl31/bin/gxl/bl31.img fip/
  66  > cp u-boot.bin fip/bl33.bin
  67
  68  > sh $UBOOTDIR/blx_fix.sh \
  69         fip/bl30.bin \
  70         fip/zero_tmp \
  71         fip/bl30_zero.bin \
  72         fip/bl301.bin \
  73         fip/bl301_zero.bin \
  74         fip/bl30_new.bin \
  75         bl30
  76
  77  > $BRDIR/bootloader/uboot-repo/fip/acs_tool.pyc fip/bl2.bin fip/bl2_acs.bin fip/acs.bin 0
  78
  79  > sh $UBOOTDIR/blx_fix.sh \
  80         fip/bl2_acs.bin \
  81         fip/zero_tmp \
  82         fip/bl2_zero.bin \
  83         fip/bl21.bin \
  84         fip/bl21_zero.bin \
  85         fip/bl2_new.bin \
  86         bl2
  87
  88  > $BRDIR/bootloader/uboot-repo/fip/gxl/aml_encrypt_gxl --bl3enc --input fip/bl30_new.bin
  89  > $BRDIR/bootloader/uboot-repo/fip/gxl/aml_encrypt_gxl --bl3enc --input fip/bl31.img
  90  > $BRDIR/bootloader/uboot-repo/fip/gxl/aml_encrypt_gxl --bl3enc --input fip/bl33.bin
  91  > $BRDIR/bootloader/uboot-repo/fip/gxl/aml_encrypt_gxl --bl2sig --input fip/bl2_new.bin --output fip/bl2.n.bin.sig
  92  > $BRDIR/bootloader/uboot-repo/fip/gxl/aml_encrypt_gxl --bootmk \
  93                 --output fip/u-boot.bin \
  94                 --bl2 fip/bl2.n.bin.sig \
  95                 --bl30 fip/bl30_new.bin.enc \
  96                 --bl31 fip/bl31.img.enc \
  97                 --bl33 fip/bl33.bin.enc
  98
  99 and then write the image to SD with:
 100
 101  > DEV=/dev/your_sd_device
 102  > dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=512 skip=1 seek=1
 103  > dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=1 count=444