forked from OERV-BSP/u-boot
9fe50b5a0a
Introducing documentation support for Qualcomm Dragonwing IQ8 QCS8300 board. Documents the build and flashing steps. Signed-off-by: Balaji Selvanathan <balaji.selvanathan@oss.qualcomm.com>
44 lines
1.9 KiB
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44 lines
1.9 KiB
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.. SPDX-License-Identifier: GPL-2.0
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.. sectionauthor:: Balaji Selvanathan <balaji.selvanathan@oss.qualcomm.com>
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Qualcomm DragonWing IQ8
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========================================
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The Dragonwing IQ8 Series (which includes QCS8300) powers computeheavy and AI-based devices, and is designed
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to operate in an expanded temperature range with available built-in safety features.
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Dragonwing IQ8 Series delivers industrial-grade AI performance of up to 40 TOPS, an octa-core
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Qualcomm Kryo Gen 6 CPU, a powerful Qualcomm Adreno 623 GPU, support for
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up to 12 concurrent cameras, and 4K video encode and decode alongside multiple displays.
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More information can be found on the `Qualcomm's IQ8 product page`_.
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.. _Qualcomm's IQ8 product page: https://docs.qualcomm.com/bundle/publicresource/87-83839-1_REV_A_Qualcomm_IQ8_Series_Product_Brief________.pdf
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Installation
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------------
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First, setup ``CROSS_COMPILE`` for aarch64. Then, build U-Boot for ``QCS8300``::
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$ export CROSS_COMPILE=<aarch64 toolchain prefix>
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$ make qcom_qcs8300_defconfig
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$ make -j8 u-boot.mbn
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This will build the signed ``u-boot.mbn`` in the configured output directory.
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The firmware expects firmware ELF images to be "signed". The signature
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does not provide any security in this case, but it provides the firmware
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with some required metadata.
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Then flash the resulting ``u-boot.mbn`` to the ``uefi_a`` partition
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on your device with ``fastboot flash uefi_a u-boot.mbn``.
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U-Boot should be running after a reboot (``fastboot reboot``).
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Note that fastboot is not yet supported in U-Boot on Dragonwing IQ8, as a result, to flash
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back the original firmware, or new versoins of the U-Boot, EDL mode must be used.
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A tool like bkerler's `edl`_ can be used for flashing.
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$ edl.py --loader /path/to/prog_firehose_ddr.elf w uefi_a u-boot.mbn
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.. _qtestsign: https://github.com/msm8916-mainline/qtestsign
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.. _edl: https://github.com/bkerler/edl
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