1U-Boot for ODROID-C2 2==================== 3 4ODROID-C2 is a single board computer manufactured by Hardkernel 5Co. Ltd with the following specifications: 6 7 - Amlogic S905 ARM Cortex-A53 quad-core SoC @ 2GHz 8 - ARM Mali 450 GPU 9 - 2GB DDR3 SDRAM 10 - Gigabit Ethernet 11 - HDMI 2.0 4K/60Hz display 12 - 40-pin GPIO header 13 - 4 x USB 2.0 Host, 1 x USB OTG 14 - eMMC, microSD 15 - Infrared receiver 16 17Schematics are available on the manufacturer website. 18 19Currently the u-boot port supports the following devices: 20 - serial 21 - Ethernet 22 23u-boot compilation 24================== 25 26 > export ARCH=arm 27 > export CROSS_COMPILE=aarch64-none-elf- 28 > make odroid-c2_defconfig 29 > make 30 31Image creation 32============== 33 34Amlogic doesn't provide sources for the firmware and for tools needed 35to create the bootloader image, so it is necessary to obtain them from 36the git tree published by the board vendor: 37 38 > DIR=odroid-c2 39 > git clone --depth 1 \ 40 https://github.com/hardkernel/u-boot.git -b odroidc2-v2015.01 \ 41 $DIR 42 > $DIR/fip/fip_create --bl30 $DIR/fip/gxb/bl30.bin \ 43 --bl301 $DIR/fip/gxb/bl301.bin \ 44 --bl31 $DIR/fip/gxb/bl31.bin \ 45 --bl33 u-boot.bin \ 46 $DIR/fip.bin 47 > $DIR/fip/fip_create --dump $DIR/fip.bin 48 > cat $DIR/fip/gxb/bl2.package $DIR/fip.bin > $DIR/boot_new.bin 49 > $DIR/fip/gxb/aml_encrypt_gxb --bootsig \ 50 --input $DIR/boot_new.bin \ 51 --output $DIR/u-boot.img 52 > dd if=$DIR/u-boot.img of=$DIR/u-boot.gxbb bs=512 skip=96 53 54and then write the image to SD with: 55 56 > DEV=/dev/your_sd_device 57 > BL1=$DIR/sd_fuse/bl1.bin.hardkernel 58 > dd if=$BL1 of=$DEV conv=fsync bs=1 count=442 59 > dd if=$BL1 of=$DEV conv=fsync bs=512 skip=1 seek=1 60 > dd if=$DIR/u-boot.gxbb of=$DEV conv=fsync bs=512 seek=97 61