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+.. SPDX-License-Identifier: GPL-2.0+
+
+U-Boot for Amlogic Q200 (S912)
+==============================
+
+Q200 is a reference board manufactured by Amlogic with the following specifications:
+
+ - Amlogic S912 ARM Cortex-A53 octo-core SoC @ 1.5GHz
+ - ARM Mali T860 GPU
+ - 2/3GB DDR4 SDRAM
+ - 10/100/1000 Ethernet
+ - HDMI 2.0 4K/60Hz display
+ - 2x USB 2.0 Host
+ - 1x USB 2.0 Device
+ - 16GB/32GB/64GB eMMC
+ - 2MB SPI Flash
+ - microSD
+ - SDIO Wifi Module, Bluetooth
+ - IR receiver
+
+U-Boot Compilation
+------------------
+
+.. code-block:: bash
+
+    $ export CROSS_COMPILE=aarch64-none-elf-
+    $ make khadas-vim2_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 q200 /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 but sources have been shared by Linux development contractor, Baylibre:
+
+.. code-block:: bash
+
+    $ wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz
+    $ wget https://releases.linaro.org/archive/13.11/components/toolchain/binaries/gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
+    $ tar xvfJ gcc-linaro-aarch64-none-elf-4.8-2013.11_linux.tar.xz
+    $ tar xvfJ gcc-linaro-arm-none-eabi-4.8-2013.11_linux.tar.xz
+    $ export PATH=$PWD/gcc-linaro-aarch64-none-elf-4.8-2013.11_linux/bin:$PWD/gcc-linaro-arm-none-eabi-4.8-2013.11_linux/bin:$PATH
+    $ git clone https://github.com/BayLibre/u-boot.git -b n-amlogic-openlinux-20170606 amlogic-u-boot
+    $ cd amlogic-u-boot
+    $ make gxm_q200_v1_defconfig
+    $ make
+    $ export FIPDIR=$PWD/fip
+
+Go back to the mainline U-Boot source tree then:
+
+.. code-block:: bash
+
+    $ mkdir fip
+
+    $ cp $FIPDIR/gxl/bl2.bin fip/
+    $ cp $FIPDIR/gxl/acs.bin fip/
+    $ cp $FIPDIR/gxl/bl21.bin fip/
+    $ cp $FIPDIR/gxl/bl30.bin fip/
+    $ cp $FIPDIR/gxl/bl301.bin fip/
+    $ cp $FIPDIR/gxl/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/gxl/aml_encrypt_gxl --bl3enc --input fip/bl30_new.bin
+    $ $FIPDIR/gxl/aml_encrypt_gxl --bl3enc --input fip/bl31.img
+    $ $FIPDIR/gxl/aml_encrypt_gxl --bl3enc --input fip/bl33.bin
+    $ $FIPDIR/gxl/aml_encrypt_gxl --bl2sig --input fip/bl2_new.bin --output fip/bl2.n.bin.sig
+    $ $FIPDIR/gxl/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