We also have a need to boot the C5535 over USB. Our development environment and OS on the target board are both Linux. I have been looking for details of the USB bootloader on either the host or target side.
I have not been able to find enough detail to write something in Linux to support booting of the C5535. The C5535 may come up as a standard device class which would greatly simplify the Linux driver development, but I can't tell. Windows just shows it as a custom USB device.
I have seen a few posts about the source from sprabl7b.zip (see http://www.ti.com/lit/an/sprabl7b/sprabl7b.pdf) possible being available. That would be an ideal place to start for a LInux bootloader for the C55353 but I haven't been able to find it.
It would take fairly complete knowledge of the USB boot protocol to write something for Linux without sniffing all the USB packets and reconstructing what was going on.
Do you know if there is any support, files or other information available to support booting the C5535 from a Linux Host ?
Thanks very much