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1f9d1cf6 FE |
1 | How to Update U-boot on Warp board |
2 | ---------------------------------- | |
3 | ||
4 | Required software on the host PC: | |
5 | ||
6 | - imx_usb_loader: https://github.com/boundarydevices/imx_usb_loader | |
7 | ||
8 | - dfu-util: http://dfu-util.sourceforge.net/releases/ | |
9 | ||
10 | Build U-boot for Warp: | |
11 | ||
12 | $ make mrproper | |
13 | $ make warp_config | |
14 | $ make | |
15 | ||
16 | This will generate the U-boot binary called u-boot.imx. | |
17 | ||
18 | Put warp board in USB download mode | |
19 | ||
20 | Connect a USB to serial adapter between the host PC and warp | |
21 | ||
22 | Connect a USB cable between the OTG warp port and the host PC | |
23 | ||
24 | Open a terminal program such as minicom | |
25 | ||
26 | Copy u-boot.imx to the imx_usb_loader folder. | |
27 | ||
28 | Load u-boot.imx via USB: | |
29 | ||
30 | $ sudo ./imx_usb u-boot.imx | |
31 | ||
32 | Then U-boot should start and its messages will appear in the console program. | |
33 | ||
34 | Use the default environment variables: | |
35 | ||
36 | => env default -f -a | |
37 | => save | |
38 | ||
39 | Run the DFU command: | |
40 | => dfu 0 mmc 0 | |
41 | ||
42 | Transfer u-boot.imx that will be flashed into the eMMC: | |
43 | ||
44 | $ sudo dfu-util -D u-boot.imx -a boot | |
45 | ||
46 | Then on the U-boot prompt the following message should be seen after a succesful | |
47 | upgrade: | |
48 | ||
49 | #DOWNLOAD ... OK | |
50 | Ctrl+C to exit ... | |
51 | ||
52 | Remove power from the warp board. | |
53 | ||
54 | Put warp board into normal boot mode | |
55 | ||
56 | Power up the board and the new updated U-boot should boot from eMMC |