| .. SPDX-License-Identifier: GPL-2.0+ |
| |
| U-Boot for Libre Computer AML-A311D-CC 'Alta' (A311D) |
| ===================================================== |
| |
| AML-A311D-CC is a Single Board Computer manufactured by Libre Computer Technology with |
| the following specifications: |
| |
| - Amlogic A311D Arm Cortex-A53 dual-core + Cortex-A73 quad-core SoC |
| - 2 or 4GB LPDDR4 SDRAM |
| - Gigabit Ethernet |
| - HDMI 2.1 display |
| - 40-pin GPIO header |
| - 4 x USB 3.0 Host, 1 x USB 2.0 Type-C |
| - eMMC 5.x SM Interface for Libre Computer Modules |
| - microSD |
| - Infrared receiver |
| |
| Schematics are available on the manufacturer website. |
| |
| U-Boot Compilation |
| ------------------ |
| |
| .. code-block:: bash |
| |
| $ export CROSS_COMPILE=aarch64-none-elf- |
| $ make aml-a311d-cc_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 aml-a311d-cc /path/to/u-boot/u-boot.bin my-output-dir |
| |
| Then write U-Boot to SD or eMMC with: |
| |
| .. code-block:: bash |
| |
| $ DEV=/dev/boot_device |
| $ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=512 skip=1 seek=1 |
| $ dd if=fip/u-boot.bin.sd.bin of=$DEV conv=fsync,notrunc bs=1 count=440 |