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[General] USB is not working in U-BOOT

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Posted at 9/2/2022 09:09:42        Only Author  11#
dd?I have not tried this method, generally I use "rockusb 0 mmc 0", and then use linux upgrade_tool to flash uboot.img.
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Posted at 9/2/2022 17:20:08        Only Author  12#
Thank you - I will try!
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Posted at 9/2/2022 17:45:56        Only Author  13#
Can you tell me, do rockusb upgrade only emmc, or I can use it to upgrade u-boot in SD card too?
On my plate now I must not touch EMMC, because of production is here... I afraid to brake it... Linux upgrade tool docs are in Chinese and I can't read this.
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Posted at 9/5/2022 17:20:07        Only Author  14#
We clearly see that there is no power to devices connected via USB, and if you power the USB device from the outside, it is seen in U-BOOT. In Linux power works fine. Tested on revision boards 1.0 and 1.1 and on different versions of SDK - 1.0.0 and 1.0.1.
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Posted at 9/6/2022 19:07:17        Only Author  15#
NVME is not working in U-BOOT too (n o power. I tried to compare linux DTS and u-boot DTS and found that there is no powers applied for USB or NVME. Now I try to enable power due to kernel DTS, but it is not working now
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Posted at 2/16/2026 09:39:34        Only Author  16#
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Posted at 2/16/2026 12:59:27        Only Author  17#
It really broadened my horizons. Strengthen your IT expertise with free Reliable Practical-Applications-of-Prompt test answers. Best of luck in your exams!
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Posted at 7 day before        Only Author  18#
This article is wonderfully written, and I’ve learned many useful techniques from it. The Latest CIPP-E exam online exam is right around the corner. Wish me luck!
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