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+SolidRun Clearfog Base
+This file documents Buildroot's support for the Clearfog Base by Solid Run.
+Warning for eMMC variant of the MicroSoM
+If you bought a MicroSoM version that includes an on-board eMMC flash, the
+built-in microSD card slot *WILL NOT WORK*. The Internet says that you have to
+upload the first bootloader via UART. This manual does not cover these steps;
+only MicroSoMs without the eMMC are supported.
+There's no access to the SPI flash in this combination of kernel/uboot/dts.
+There is no support for the SFP.
+Start with the default Buildroot's configuration for Clearfog:
+ make solidrun_clearfog_defconfig
+Build all components:
+The results of the build are available in ./output/images.
+Create a bootable SD card
+To determine the device associated to the SD card have a look in the
+ cat /proc/partitions
+Buildroot prepares a bootable "sdcard.img" image in the output/images/
+directory, ready to be dumped on a microSD card. Launch the following
+command as root:
+ dd if=./output/images/sdcard.img of=/dev/<your-microsd-device>
+*** WARNING! The script will destroy all the card content. Use with care! ***
+For details about the medium image layout, see the definition in
+Boot the Clearfog board
+Here's how to boot the board:
+- Set up the DIP switches for microSD boot. The correct values are:
+ 1: off, 2: off, 3: ON, 4: ON, 5: ON. In this scheme, switch #1" is closer to
+ the ethernet ports and #5 is closer to the microSD card, "ON" means towards
+ the SOM, and "off" means towards the SFP cage.
+- Connect to the board's console over the microUSB port.
+- Insert the SD card into the slot on the board (pins up).
+- Power up the board.