Introducing documentation support for Qualcomm Dragonwing IQ8 QCS8300 board. Documents the build and flashing steps.
Signed-off-by: Balaji Selvanathan <balaji.selvanat...@oss.qualcomm.com> --- v5: - Renamed doc/board/qualcomm/dragonwing.rst to doc/board/qualcomm/iq8.rst v4: - Updated the flashing steps in the documentation v3: - No changes to this patch in v3 v2: - This file is newly added in v2 based on suggestion from reviewer --- doc/board/qualcomm/iq8.rst | 44 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 doc/board/qualcomm/iq8.rst diff --git a/doc/board/qualcomm/iq8.rst b/doc/board/qualcomm/iq8.rst new file mode 100644 index 00000000000..3e875c33622 --- /dev/null +++ b/doc/board/qualcomm/iq8.rst @@ -0,0 +1,44 @@ +.. SPDX-License-Identifier: GPL-2.0 +.. sectionauthor:: Balaji Selvanathan <balaji.selvanat...@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. More information +about image signing can be found in :doc:`signing`. + +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 -- 2.34.1
