|
|
|
|
U-Boot for ODROID-C2
|
|
|
|
|
====================
|
|
|
|
|
|
|
|
|
|
ODROID-C2 is a single board computer manufactured by Hardkernel
|
|
|
|
|
Co. Ltd with the following specifications:
|
|
|
|
|
|
|
|
|
|
- Amlogic S905 ARM Cortex-A53 quad-core SoC @ 2GHz
|
|
|
|
|
- ARM Mali 450 GPU
|
|
|
|
|
- 2GB DDR3 SDRAM
|
|
|
|
|
- Gigabit Ethernet
|
|
|
|
|
- HDMI 2.0 4K/60Hz display
|
|
|
|
|
- 40-pin GPIO header
|
|
|
|
|
- 4 x USB 2.0 Host, 1 x USB OTG
|
|
|
|
|
- eMMC, microSD
|
|
|
|
|
- Infrared receiver
|
|
|
|
|
|
|
|
|
|
Schematics are available on the manufacturer website.
|
|
|
|
|
|
|
|
|
|
Currently the u-boot port supports the following devices:
|
|
|
|
|
- serial
|
|
|
|
|
- eMMC, microSD
|
|
|
|
|
- Ethernet
|
|
|
|
|
- I2C
|
|
|
|
|
- Regulators
|
|
|
|
|
- Reset controller
|
|
|
|
|
- Clock controller
|
|
|
|
|
- ADC
|
|
|
|
|
|
|
|
|
|
u-boot compilation
|
|
|
|
|
==================
|
|
|
|
|
|
|
|
|
|
> export ARCH=arm
|
|
|
|
|
> export CROSS_COMPILE=aarch64-none-elf-
|
|
|
|
|
> make odroid-c2_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:
|
|
|
|
|
|
|
|
|
|
> DIR=odroid-c2
|
|
|
|
|
> git clone --depth 1 \
|
|
|
|
|
https://github.com/hardkernel/u-boot.git -b odroidc2-v2015.01 \
|
|
|
|
|
$DIR
|
|
|
|
|
> $DIR/fip/fip_create --bl30 $DIR/fip/gxb/bl30.bin \
|
|
|
|
|
--bl301 $DIR/fip/gxb/bl301.bin \
|
|
|
|
|
--bl31 $DIR/fip/gxb/bl31.bin \
|
|
|
|
|
--bl33 u-boot.bin \
|
|
|
|
|
$DIR/fip.bin
|
|
|
|
|
> $DIR/fip/fip_create --dump $DIR/fip.bin
|
|
|
|
|
> cat $DIR/fip/gxb/bl2.package $DIR/fip.bin > $DIR/boot_new.bin
|
|
|
|
|
> $DIR/fip/gxb/aml_encrypt_gxb --bootsig \
|
|
|
|
|
--input $DIR/boot_new.bin \
|
|
|
|
|
--output $DIR/u-boot.img
|
|
|
|
|
> dd if=$DIR/u-boot.img of=$DIR/u-boot.gxbb bs=512 skip=96
|
|
|
|
|
|
|
|
|
|
and then write the image to SD with:
|
|
|
|
|
|
|
|
|
|
> DEV=/dev/your_sd_device
|
|
|
|
|
> BL1=$DIR/sd_fuse/bl1.bin.hardkernel
|
|
|
|
|
> dd if=$BL1 of=$DEV conv=fsync bs=1 count=442
|
|
|
|
|
> dd if=$BL1 of=$DEV conv=fsync bs=512 skip=1 seek=1
|
|
|
|
|
> dd if=$DIR/u-boot.gxbb of=$DEV conv=fsync bs=512 seek=97
|
