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diff --git a/doc/board/qualcomm/dragonwing.rst b/doc/board/qualcomm/dragonwing.rst new file mode 100644 index 00000000000..d4899415309 --- /dev/null +++ b/doc/board/qualcomm/dragonwing.rst @@ -0,0 +1,49 @@ +.. SPDX-License-Identifier: GPL-2.0 +.. sectionauthor:: Balaji Selvanathan <balaji.selvanathan@oss.qualcomm.com> + +Qualcomm DragonWing +======================================== + +Qualcomm DragonWing are industrial-grade boards that provides various series +of processors such as IQ6 (QCS615), IQ8 (QCS8300) and IQ9 (QCS9100). +These SoCs are used for factory/industry based applications. +More information can be found on the `Qualcomm's IQ6 product page`_, +`Qualcomm's IQ8 product page`_ and `Qualcomm's IQ9 product page`_. + +.. _Qualcomm's IQ6 product page: https://docs.qualcomm.com/bundle/publicresource/87-83838-1_REV_A_Qualcomm_IQ6_Series_Product_Brief.pdf +.. _Qualcomm's IQ8 product page: https://docs.qualcomm.com/bundle/publicresource/87-83839-1_REV_A_Qualcomm_IQ8_Series_Product_Brief________.pdf +.. _Qualcomm's IQ9 product page: https://docs.qualcomm.com/bundle/publicresource/87-83840-1_REV_A_Qualcomm_IQ9_Series_Product_Brief.pdf + +Installation +------------ +First, setup ``CROSS_COMPILE`` for aarch64. Then, build U-Boot for ``QCS615``, ``QCS8300`` or ``QCS9100``:: + + $ export CROSS_COMPILE=<aarch64 toolchain prefix> + $ make qcom_qcs8300_defconfig + $ make -j8 u-boot.mbn + +Although the board does not have secure boot set up by default, +the firmware still 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. + +To "sign" ``u-boot.elf`` you can use e.g. `qtestsign`_:: + + $ qtestsign -v6 aboot -o u-boot.mbn u-boot.elf + +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 boards, 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 with the firehose loader (for example, for QCS9100 +the firehose loader can be obtained from `dragonwing IQ9 bootbinaries`.) :: + +$ 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 +.. _dragonwing IQ9 bootbinaries: https://artifacts.codelinaro.org/ui/native/qli-ci/flashable-binaries/qimpsdk/qcs9075-rb8-core-kit |