U-Boot for BananaPi BPI-M5 (S905X3)

BananaPi BPI-M5 is a Single Board Computer manufactured by Sinovoip with the following specification:

Amlogic S905X3 Arm Cortex-A55 quad-core SoC

4GB DDR4 SDRAM

16GB eMMC

Gigabit Ethernet

HDMI 2.1 display

40-pin GPIO header

4x USB 3.0 Host

1x USB-C (power)

microSD

UART serial

Infrared receiver

Schematics are available from the manufacturer: https://wiki.banana-pi.org/Banana_Pi_BPI-M5

U-Boot Compilation

$exportCROSS_COMPILE=aarch64-none-elf-
$makebananapi-m5_defconfig
$make

U-Boot Signing with Pre-Built FIP repo

$gitclonehttps://github.com/LibreELEC/amlogic-boot-fip--depth=1
$cdamlogic-boot-fip
$mkdirmy-output-dir
$./build-fip.shbananapi-m5/path/to/u-boot/u-boot.binmy-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:

$wgethttps://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz
$wgethttps://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
$tarxvfJgcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz
$tarxvfJgcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
$exportPATH=$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
$DIR=bananapi-m5
$gitclone--depth1https://github.com/Dangku/amlogic-u-boot.git-bodroidg12-v2015.01-c4-m5$DIR
$cd$DIR
$makebananapi_m5_defconfig
$make
$exportUBOOTDIR=$PWD

Go back to the mainline U-Boot source tree then:

$mkdirfip
$wgethttps://github.com/BayLibre/u-boot/releases/download/v2017.11-libretech-cc/blx_fix_g12a.sh-Ofip/blx_fix.sh
$cp$UBOOTDIR/build/scp_task/bl301.binfip/
$cp$UBOOTDIR/build/board/bananapi/bananpi_m5/firmware/acs.binfip/
$cp$UBOOTDIR/fip/g12a/bl2.binfip/
$cp$UBOOTDIR/fip/g12a/bl30.binfip/
$cp$UBOOTDIR/fip/g12a/bl31.imgfip/
$cp$UBOOTDIR/fip/g12a/ddr3_1d.fwfip/
$cp$UBOOTDIR/fip/g12a/ddr4_1d.fwfip/
$cp$UBOOTDIR/fip/g12a/ddr4_2d.fwfip/
$cp$UBOOTDIR/fip/g12a/diag_lpddr4.fwfip/
$cp$UBOOTDIR/fip/g12a/lpddr3_1d.fwfip/
$cp$UBOOTDIR/fip/g12a/lpddr4_1d.fwfip/
$cp$UBOOTDIR/fip/g12a/lpddr4_2d.fwfip/
$cp$UBOOTDIR/fip/g12a/piei.fwfip/
$cp$UBOOTDIR/fip/g12a/aml_ddr.fwfip/
$cpu-boot.binfip/bl33.bin
$shfip/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
$shfip/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
$$UBOOTDIR/fip/g12a/aml_encrypt_g12a--bl30sig--inputfip/bl30_new.bin\
--outputfip/bl30_new.bin.g12a.enc\
--levelv3
$$UBOOTDIR/fip/g12a/aml_encrypt_g12a--bl3sig--inputfip/bl30_new.bin.g12a.enc\
--outputfip/bl30_new.bin.enc\
--levelv3--typebl30
$$UBOOTDIR/fip/g12a/aml_encrypt_g12a--bl3sig--inputfip/bl31.img\
--outputfip/bl31.img.enc\
--levelv3--typebl31
$$UBOOTDIR/fip/g12a/aml_encrypt_g12a--bl3sig--inputfip/bl33.bin--compresslz4\
--outputfip/bl33.bin.enc\
--levelv3--typebl33--compresslz4
$$UBOOTDIR/fip/g12a/aml_encrypt_g12a--bl2sig--inputfip/bl2_new.bin\
--outputfip/bl2.n.bin.sig
$$UBOOTDIR/fip/g12a/aml_encrypt_g12a--bootmk\
--outputfip/u-boot.bin\
--bl2fip/bl2.n.bin.sig\
--bl30fip/bl30_new.bin.enc\
--bl31fip/bl31.img.enc\
--bl33fip/bl33.bin.enc\
--ddrfw1fip/ddr4_1d.fw\
--ddrfw2fip/ddr4_2d.fw\
--ddrfw3fip/ddr3_1d.fw\
--ddrfw4fip/piei.fw\
--ddrfw5fip/lpddr4_1d.fw\
--ddrfw6fip/lpddr4_2d.fw\
--ddrfw7fip/diag_lpddr4.fw\
--ddrfw8fip/aml_ddr.fw\
--ddrfw9fip/lpddr3_1d.fw\
--levelv3

Then write the image to SD or eMMC with:

$DEV=/dev/boot_device
$ddif=fip/u-boot.bin.sd.binof=$DEVconv=fsync,notruncbs=512skip=1seek=1
$ddif=fip/u-boot.bin.sd.binof=$DEVconv=fsync,notruncbs=1count=440