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- .. SPDX-License-Identifier: GPL-2.0+
- U-Boot for ODROID-C2 (S905)
- ===========================
- ODROID-C2 is a single board computer manufactured by Hardkernel with the following
- specifications:
- - Amlogic S905 ARM Cortex-A53 quad-core SoC @ 1.5GHz
- - 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: https://wiki.odroid.com
- U-Boot Compilation
- ------------------
- .. code-block:: bash
- $ export CROSS_COMPILE=aarch64-none-elf-
- $ make odroid-c2_defconfig
- $ make
- U-Boot Signing with Pre-Built FIP repo
- --------------------------------------
- .. code-block:: bash
- $ git clone https://github.com/LibreELEC/amlogic-boot-fip --depth=1
- $ cd amlogic-boot-fip
- $ mkdir my-output-dir
- $ ./build-fip.sh odroid-c2 /path/to/u-boot/u-boot.bin my-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:
- .. code-block:: bash
- $ 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
- Then write U-Boot to SD or eMMC with:
- .. code-block:: bash
- $ DEV=/dev/your_boot_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
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