| 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 |
| - Ethernet |
| |
| 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 |
