Forums » Software Development »
USB from uBoot (posted on behalf of a customer)
Added by Angela Newman over 12 years ago
We attempted to access the evaluation board's USB port using uBoot and didn't have much success.
Should this be working?
The uBoot command we used was 'usb reset'. And we are using the L138 SOM with the pre-loaded uBoot.
The USB port does appear to detect a USB stick once it boots into Linux.
Replies (1)
RE: USB from uBoot (posted on behalf of a customer) - Added by Michael Williamson over 12 years ago
Currently, USB stick support for the MityDSP-L138F u-Boot port has not been enabled/implemented/tested.
The u-Boot supports (tested) the following media:
- EMAC (MII or RGMII) via TFTP or NFS
- onboard SPI NOR FLASH
- onboard NAND FLASH
- MMC
- UART (kermit, ymodem, zmodem)
We have not tested SATA or USB stick via either USB0 or USB1.
The linux kernel port support these interfaces, so if you can load the linux kernel via the above mentioned interfaces (typically SPI NOR), then you can mount your root filesystem using SATA (tested) or potentially USB (we have not tried that here, but it should be possible).
-Mike
