readme.txt
1**********************
2SolidRun Clearfog Base
3**********************
4
5This file documents Buildroot's support for the Clearfog Base by Solid Run.
6
7Vendor's documentation:
8https://wiki.solid-run.com/doku.php?id=products:a38x:documents
9
10Warning for eMMC variant of the MicroSoM
11========================================
12
13If you bought a MicroSoM version that includes an on-board eMMC flash, the
14built-in microSD card slot *WILL NOT WORK*. The Internet says that you have to
15upload the first bootloader via UART. This manual does not cover these steps;
16only MicroSoMs without the eMMC are supported.
17
18Build
19=====
20
21Start with the default Buildroot's configuration for Clearfog:
22
23 make solidrun_clearfog_defconfig
24
25Build all components:
26
27 make
28
29The results of the build are available in ./output/images.
30
31Create a bootable SD card
32=========================
33
34To determine the device associated to the SD card have a look in the
35/proc/partitions file:
36
37 cat /proc/partitions
38
39Buildroot prepares a bootable "sdcard.img" image in the output/images/
40directory, ready to be dumped on a microSD card. Launch the following
41command as root:
42
43 dd if=output/images/sdcard.img of=/dev/<your-microsd-device> conv=fdatasync
44
45*** WARNING! The dd command will destroy all the card content. Use with care! ***
46
47For details about the medium image layout, see the definition in
48board/solidrun/clearfog/genimage.cfg.
49
50Boot the Clearfog board
51=======================
52
53Here's how to boot the board:
54
55- Set up the DIP switches for microSD boot. The correct values are:
56 1: off, 2: off, 3: ON, 4: ON, 5: ON. In this scheme, switch #1" is closer to
57 the ethernet ports and #5 is closer to the microSD card, "ON" means towards
58 the SOM, and "off" means towards the SFP cage.
59- Connect to the board's console over the microUSB port.
60- Insert the SD card into the slot on the board (pins up).
61- Power up the board.
62