**********************
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SolidRun Clearfog Base
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**********************
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This file documents Buildroot's support for the Clearfog Base by Solid Run.
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Vendor's documentation:
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https://wiki.solid-run.com/doku.php?id=products:a38x:documents
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Warning for eMMC variant of the MicroSoM
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========================================
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If you bought a MicroSoM version that includes an on-board eMMC flash, the
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built-in microSD card slot *WILL NOT WORK*. The Internet says that you have to
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upload the first bootloader via UART. This manual does not cover these steps;
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only MicroSoMs without the eMMC are supported.
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Build
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=====
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Start with the default Buildroot's configuration for Clearfog:
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make solidrun_clearfog_defconfig
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Build all components:
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make
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The results of the build are available in ./output/images.
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Create a bootable SD card
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=========================
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To determine the device associated to the SD card have a look in the
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/proc/partitions file:
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cat /proc/partitions
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Buildroot prepares a bootable "sdcard.img" image in the output/images/
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directory, ready to be dumped on a microSD card. Launch the following
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command as root:
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dd if=output/images/sdcard.img of=/dev/<your-microsd-device> conv=fdatasync
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*** WARNING! The dd command will destroy all the card content. Use with care! ***
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For details about the medium image layout, see the definition in
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board/solidrun/clearfog/genimage.cfg.
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Boot the Clearfog board
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=======================
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Here's how to boot the board:
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- Set up the DIP switches for microSD boot. The correct values are:
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1: off, 2: off, 3: ON, 4: ON, 5: ON. In this scheme, switch #1" is closer to
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the ethernet ports and #5 is closer to the microSD card, "ON" means towards
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the SOM, and "off" means towards the SFP cage.
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- Connect to the board's console over the microUSB port.
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- Insert the SD card into the slot on the board (pins up).
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- Power up the board.
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