|  | U-Boot for SolidRun Hummingboard | 
|  | -------------------------------- | 
|  |  | 
|  | This file contains information for the port of U-Boot to the Hummingboard. | 
|  |  | 
|  | For more details about Hummingboard, please refer to: | 
|  | http://imx.solid-run.com/wiki/index.php?title=Carrier-One_Hardware | 
|  |  | 
|  | (Carrier-One was the previous name of Hummingboard). | 
|  |  | 
|  | Building U-boot for Hummingboard | 
|  | -------------------------------- | 
|  |  | 
|  | To build U-Boot for the Hummingboard Solo version: | 
|  |  | 
|  | $ make hummingboard_solo_config | 
|  | $ make | 
|  |  | 
|  | Flashing U-boot into the SD card | 
|  | -------------------------------- | 
|  |  | 
|  | - After the 'make' command completes, the generated 'u-boot.imx' binary must be | 
|  | flashed into the SD card: | 
|  |  | 
|  | $ sudo dd if=u-boot.imx of=/dev/mmcblk0 bs=1k seek=1; sync | 
|  |  | 
|  | (Note - the SD card node may vary, so adjust this as needed). | 
|  |  | 
|  | Also, a more detailed explanation on how to format the SD card is available | 
|  | at doc/README.imximage. | 
|  |  | 
|  | - Insert the micro SD card into the slot located in the bottom of the board | 
|  |  | 
|  | - Connect a 3.3V USB to serial converter cable to the host PC. The MX6 UART | 
|  | signals are available in the 26 pin connector as shown at: | 
|  | http://imx.solid-run.com/wiki/index.php?title=Carrier-One_Hardware | 
|  | (Check for "26 pin header layout"). | 
|  |  | 
|  | - Power up the board via USB cable (CON201) and U-boot messages will appear in | 
|  | the serial console. |