| Intro |
| ===== |
| |
| The default configuration described below will allow you to start |
| experimenting with the buildroot environment for the SolidRun Clearfog GT-8K |
| based on the Marvell Armada 8040 SoC. |
| |
| This default configuration will bring up the board and allow shell command |
| line access through the serial console. |
| |
| How to build |
| ============ |
| |
| $ make solidrun_clearfog_gt_8k_defconfig |
| $ make |
| |
| How to write the SD card |
| ======================== |
| |
| Once the build process is finished you will have an image file named |
| "sdcard.img" in the output/images/ directory. |
| |
| Copy the bootable "sdcard.img" onto an SD card with "dd": |
| |
| $ sudo dd if=output/images/sdcard.img of=/dev/sdX bs=1M conv=fsync |
| |
| How to boot the board |
| ===================== |
| |
| The Clearfog GT-8K can be setup to load the bootloader from different sources |
| including eMMC, SPI flash, and SD-card. |
| |
| To select boot from SD-card the DIP switches in SW6 (at the bottom of the |
| board) should be configured as follows: |
| |
| SW6: 11010 |
| |
| Insert the micro SDcard in the Cleargfog GT-8K and power it up. |
| |
| Serial console |
| ============== |
| |
| The serial console is accessible at the J27 pins header (TTL UART) with the |
| following pinout (pin #1 is marked with triangle on the PCB): |
| |
| pin #1: Ground |
| pin #2: Armada 8040 Rx |
| pin #3: Armada 8040 Tx |
| |
| Enable the switch (yellow) Ethernet ports |
| ========================================= |
| |
| To enable the Clearfog GT-8K internal switch port make sure to load the |
| 'mv88e6xxx' kernel module, and up the switch up-link port (eth2 by default): |
| |
| modprobe mv88e6xxx |
| ifconfig eth2 up |
| |
| Then you can configure each switch port separately. These port are named |
| 'lan1' to 'lan4' by default. 'lan1' is closest to the USB port, while 'lan4' |
| is closest to the blue Ethernet port. |
