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+.. SPDX-License-Identifier: GPL-2.0+
+
+Librem5
+==========
+
+U-Boot for the Purism Librem5 phone
+
+Quick Start
+-----------
+
+- Build the ARM Trusted firmware binary
+- Get ddr and hdmi firmware
+- Build U-Boot
+
+Get and Build the ARM Trusted firmware
+--------------------------------------
+
+Note: srctree is U-Boot source directory
+Get ATF from: https://source.puri.sm/Librem5/arm-trusted-firmware
+branch: librem5
+
+.. code-block:: bash
+
+   $ make PLAT=imx8mq CROSS_COMPILE=aarch64-linux-gnu- bl31
+   $ cp build/imx8mq/release/bl31.bin $(builddir)
+
+Get the ddr and display port firmware
+-------------------------------------
+
+.. code-block:: bash
+
+   $ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-8.15.bin
+   $ chmod +x firmware-imx-8.15.bin
+   $ ./firmware-imx-8.15.bin
+   $ cp firmware-imx-8.15/firmware/hdmi/cadence/signed_dp_imx8m.bin $(builddir)
+   $ cp firmware-imx-8.15/firmware/ddr/synopsys/lpddr4*.bin $(builddir)
+
+Build U-Boot
+------------
+
+.. code-block:: bash
+
+   $ export CROSS_COMPILE=aarch64-linux-gnu-
+   $ make librem5_defconfig
+   $ make ARCH=arm
+
+Burn the flash.bin
+------------------
+
+Use uuu to burn flash.bin. Power on the phone while holding vol+ to get it
+into uuu mode.
+
+.. code-block:: bash
+
+   $ git clone https://source.puri.sm/Librem5/librem5-devkit-tools.git
+   $ cd librem5-devkit-tools
+   $ cp $(builddir)/flash.bin files/u-boot-librem5.imx
+   $ uuu uuu_scripts/u-boot_flash_librem5.lst
+
+Reboot the phone.