| .. SPDX-License-Identifier: GPL-2.0+ |
| |
| U-Boot for Beelink GT1 Ultimate (S912) |
| ====================================== |
| |
| Beelink GT1 Ultimate is an Android STB manufactured by Shenzen AZW (Beelink) with the |
| following specification: |
| |
| - 2GB or 3GB DDR3 RAM |
| - 32GB eMMC |
| - HDMI 2.1 video |
| - S/PDIF optical output |
| - 10/100/1000 Ethernet |
| - AP6356S Wireless (802.11 a/b/g/n/ac, BT 4.2) |
| - 3x USB 2.0 ports |
| - IR receiver |
| - 1x micro SD card slot |
| - 1x Power LED (white) |
| - 1x Reset button (internal) |
| |
| The GT1 (non-ultimate) board has QCA9377 WiFi/BT but is otherwise identical and should |
| be capable of booting images prepared for the Ultimate box (NB: there are known clones |
| of both boxes which may differ in specifications). |
| |
| Beelink do not provide public schematics, but have been willing to share them with known |
| distro developers on request. |
| |
| U-Boot Compilation |
| ------------------ |
| |
| .. code-block:: bash |
| |
| $ export CROSS_COMPILE=aarch64-none-elf- |
| $ make beelink-gt1-ultimate_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 beelink-gt1 /path/to/u-boot/u-boot.bin my-output-dir |
| |
| U-Boot Manual Signing |
| --------------------- |
| |
| Amlogic does not provide firmware sources or tools needed to create the bootloader image |
| and Beelink has not publicly shared the U-Boot sources needed to build the FIP binaries |
| for signing. However you can download them from the amlogic-fip-repo. |
| |
| .. code-block:: bash |
| |
| $ git clone https://github.com/LibreELEC/amlogic-boot-fip --depth=1 |
| $ cd amlogic-boot-fip/beelink-gt1 |
| $ export FIPDIR=$PWD |
| |
| Go back to the mainline U-Boot source tree then: |
| |
| .. code-block:: bash |
| |
| $ mkdir fip |
| $ cp $FIPDIR/bl2.bin fip/ |
| $ cp $FIPDIR/acs.bin fip/ |
| $ cp $FIPDIR/bl21.bin fip/ |
| $ cp $FIPDIR/bl30.bin fip/ |
| $ cp $FIPDIR/bl301.bin fip/ |
| $ cp $FIPDIR/bl31.img fip/ |
| $ cp u-boot.bin fip/bl33.bin |
| |
| $ $FIPDIR/blx_fix.sh \ |
| fip/bl30.bin \ |
| fip/zero_tmp \ |
| fip/bl30_zero.bin \ |
| fip/bl301.bin \ |
| fip/bl301_zero.bin \ |
| fip/bl30_new.bin \ |
| bl30 |
| |
| $ python $FIPDIR/acs_tool.pyc fip/bl2.bin fip/bl2_acs.bin fip/acs.bin 0 |
| |
| $ $FIPDIR/blx_fix.sh \ |
| fip/bl2_acs.bin \ |
| fip/zero_tmp \ |
| fip/bl2_zero.bin \ |
| fip/bl21.bin \ |
| fip/bl21_zero.bin \ |
| fip/bl2_new.bin \ |
| bl2 |
| |
| $ $FIPDIR/aml_encrypt_gxl --bl3enc --input fip/bl30_new.bin |
| $ $FIPDIR/aml_encrypt_gxl --bl3enc --input fip/bl31.img |
| $ $FIPDIR/aml_encrypt_gxl --bl3enc --input fip/bl33.bin |
| $ $FIPDIR/aml_encrypt_gxl --bl2sig --input fip/bl2_new.bin --output fip/bl2.n.bin.sig |
| $ $FIPDIR/aml_encrypt_gxl --bootmk \ |
| --output fip/u-boot.bin \ |
| --bl2 fip/bl2.n.bin.sig \ |
| --bl30 fip/bl30_new.bin.enc \ |
| --bl31 fip/bl31.img.enc \ |
| --bl33 fip/bl33.bin.enc |
| |
| 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 |