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Diffstat (limited to 'doc/board/purism/librem5.rst')
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diff --git a/doc/board/purism/librem5.rst b/doc/board/purism/librem5.rst new file mode 100644 index 0000000..fb050c6 --- /dev/null +++ b/doc/board/purism/librem5.rst @@ -0,0 +1,60 @@ +.. 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. |