Need to fix SPI and SB_WARMBOOT, but the DFU state machine now works. Signed-off-by: Sean Cross <sean@xobs.io>
Signed-off-by: Sean Cross <sean@xobs.io>
For foboot, we're using a CPU without a divide or multiply instruction, to save gates. Replace these with software implementations. Signed-off-by: Sean Cross <sean@xobs.io>