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| -rw-r--r-- | board/warp/README | 56 |
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diff --git a/board/warp/README b/board/warp/README new file mode 100644 index 0000000..0e1f076 --- /dev/null +++ b/board/warp/README @@ -0,0 +1,56 @@ +How to Update U-boot on Warp board +---------------------------------- + +Required software on the host PC: + +- imx_usb_loader: https://github.com/boundarydevices/imx_usb_loader + +- dfu-util: http://dfu-util.sourceforge.net/releases/ + +Build U-boot for Warp: + +$ make mrproper +$ make warp_config +$ make + +This will generate the U-boot binary called u-boot.imx. + +Put warp board in USB download mode + +Connect a USB to serial adapter between the host PC and warp + +Connect a USB cable between the OTG warp port and the host PC + +Open a terminal program such as minicom + +Copy u-boot.imx to the imx_usb_loader folder. + +Load u-boot.imx via USB: + +$ sudo ./imx_usb u-boot.imx + +Then U-boot should start and its messages will appear in the console program. + +Use the default environment variables: + +=> env default -f -a +=> save + +Run the DFU command: +=> dfu 0 mmc 0 + +Transfer u-boot.imx that will be flashed into the eMMC: + +$ sudo dfu-util -D u-boot.imx -a boot + +Then on the U-boot prompt the following message should be seen after a succesful +upgrade: + +#DOWNLOAD ... OK +Ctrl+C to exit ... + +Remove power from the warp board. + +Put warp board into normal boot mode + +Power up the board and the new updated U-boot should boot from eMMC |