2022-08-25 13:46:02 +00:00
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.. SPDX-License-Identifier: GPL-2.0+
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Librem5
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2023-10-28 09:59:32 +00:00
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=======
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2022-08-25 13:46:02 +00:00
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U-Boot for the Purism Librem5 phone
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Quick Start
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-----------
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- Build the ARM Trusted firmware binary
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- Get ddr and hdmi firmware
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- Build U-Boot
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Get and Build the ARM Trusted firmware
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--------------------------------------
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Note: srctree is U-Boot source directory
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Get ATF from: https://source.puri.sm/Librem5/arm-trusted-firmware
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branch: librem5
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.. code-block:: bash
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$ make PLAT=imx8mq CROSS_COMPILE=aarch64-linux-gnu- bl31
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$ cp build/imx8mq/release/bl31.bin $(builddir)
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Get the ddr and display port firmware
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-------------------------------------
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.. code-block:: bash
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$ wget https://www.nxp.com/lgfiles/NMG/MAD/YOCTO/firmware-imx-8.15.bin
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$ chmod +x firmware-imx-8.15.bin
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$ ./firmware-imx-8.15.bin
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$ cp firmware-imx-8.15/firmware/hdmi/cadence/signed_dp_imx8m.bin $(builddir)
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$ cp firmware-imx-8.15/firmware/ddr/synopsys/lpddr4*.bin $(builddir)
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Build U-Boot
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------------
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.. code-block:: bash
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$ export CROSS_COMPILE=aarch64-linux-gnu-
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$ make librem5_defconfig
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$ make ARCH=arm
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Burn the flash.bin
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------------------
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Use uuu to burn flash.bin. Power on the phone while holding vol+ to get it
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into uuu mode.
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.. code-block:: bash
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$ git clone https://source.puri.sm/Librem5/librem5-devkit-tools.git
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$ cd librem5-devkit-tools
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$ cp $(builddir)/flash.bin files/u-boot-librem5.imx
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$ uuu uuu_scripts/u-boot_flash_librem5.lst
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Reboot the phone.
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