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969e3dd13e
Support for Schneider Electric HMIBSC. Features: - Qualcomm Snapdragon 410C SoC - APQ8016 (4xCortex A53, Adreno 306) - 2GiB RAM - 64GiB eMMC, SD slot - WiFi and Bluetooth - 2x Host, 1x Device USB port - HDMI - Discrete TPM2 chip over SPI Features enabled in U-Boot: - RAUC updates - Environment protection - USB based ethernet adaptors Signed-off-by: Sumit Garg <sumit.garg@linaro.org> Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
46 lines
1.6 KiB
ReStructuredText
46 lines
1.6 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0+
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.. sectionauthor:: Sumit Garg <sumit.garg@linaro.org>
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HMIBSC
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======
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The HMIBSC is an IIoT Edge Box Core board based on the Qualcomm APQ8016E SoC.
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More information can be found on the `SE product page`_.
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U-Boot can be used as a replacement for Qualcomm's original Android bootloader
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(a fork of Little Kernel/LK). Like LK, it is installed directly into the ``aboot``
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partition. Note that the U-Boot port used to be loaded as an Android boot image
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through LK. This is no longer the case, now U-Boot can replace LK entirely.
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.. _SE product page: https://www.se.com/us/en/product/HMIBSCEA53D1L0T/iiot-edge-box-core-harmony-ipc-emmc-dc-linux-tpm/
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Build steps
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-----------
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First, setup ``CROSS_COMPILE`` for aarch64. Then, build U-Boot for ``hmibsc``::
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$ export CROSS_COMPILE=<aarch64 toolchain prefix>
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$ make hmibsc_defconfig
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$ make
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This will build ``u-boot.elf`` in the configured output directory.
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Installation
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------------
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Although the HMIBSC does not have secure boot set up by default, the firmware
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still expects firmware ELF images to be "signed". The signature does not provide
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any security in this case, but it provides the firmware with some required
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metadata.
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To "sign" ``u-boot.elf`` you can use e.g. `qtestsign`_::
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$ ./qtestsign.py aboot u-boot.elf
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Then install the resulting ``u-boot-test-signed.mbn`` to the ``aboot`` partition
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on your device, e.g. with ``fastboot flash aboot u-boot-test-signed.mbn``.
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U-Boot should be running after a reboot (``fastboot reboot``).
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.. _qtestsign: https://github.com/msm8916-mainline/qtestsign
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