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diff --git a/doc/board/qualcomm/iq8.rst b/doc/board/qualcomm/iq8.rst new file mode 100644 index 00000000000..f3df0ee00bc --- /dev/null +++ b/doc/board/qualcomm/iq8.rst @@ -0,0 +1,43 @@ +.. SPDX-License-Identifier: GPL-2.0 +.. sectionauthor:: Balaji Selvanathan <balaji.selvanathan@oss.qualcomm.com> + +Qualcomm DragonWing IQ8 +======================================== + +The Dragonwing IQ8 Series (which includes QCS8300) powers computeheavy and AI-based devices, and is designed +to operate in an expanded temperature range with available built-in safety features. +Dragonwing IQ8 Series delivers industrial-grade AI performance of up to 40 TOPS, an octa-core +Qualcomm Kryo Gen 6 CPU, a powerful Qualcomm Adreno 623 GPU, support for +up to 12 concurrent cameras, and 4K video encode and decode alongside multiple displays. + +More information can be found on the `Qualcomm's IQ8 product page`_. + +.. _Qualcomm's IQ8 product page: https://docs.qualcomm.com/bundle/publicresource/87-83839-1_REV_A_Qualcomm_IQ8_Series_Product_Brief________.pdf + +Installation +------------ +First, setup ``CROSS_COMPILE`` for aarch64. Then, build U-Boot for ``QCS8300``:: + + $ export CROSS_COMPILE=<aarch64 toolchain prefix> + $ make qcom_qcs8300_defconfig + $ make -j8 u-boot.mbn + +This will build the signed ``u-boot.mbn`` in the configured output directory. +The firmware expects firmware ELF images to be "signed". The signature +does not provide any security in this case, but it provides the firmware +with some required metadata. + +Then flash the resulting ``u-boot.mbn`` to the ``uefi_a`` partition +on your device with ``fastboot flash uefi_a u-boot.mbn``. + +U-Boot should be running after a reboot (``fastboot reboot``). + +Note that fastboot is not yet supported in U-Boot on Dragonwing IQ8, as a result, to flash +back the original firmware, or new versoins of the U-Boot, EDL mode must be used. + +A tool like bkerler's `edl`_ can be used for flashing. + +$ edl.py --loader /path/to/prog_firehose_ddr.elf w uefi_a u-boot.mbn + +.. _qtestsign: https://github.com/msm8916-mainline/qtestsign +.. _edl: https://github.com/bkerler/edl |