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Author SHA1 Message Date
microDev a52eb88031
run code formatting script 2021-03-15 19:27:36 +05:30
Sean Cross 2f95cc95a4 litex: move more critical code to RAM 
The XIP SPI flash on Fomu is slow, which results in certain operations
taking a long time. This becomes a problem for time-critical operations
such as USB.

Move various calls into RAM to improve performance.

This includes the call to __modsi3 and __udivsi3 which are used by the
supervisor handler to determine if periodic callbacks need to be run.

This finishes fixing #3841

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-12-24 14:06:57 +08:00
Sean Cross 786e79ebc9 ports: litex: add port and fomu board 
This adds support for Litex, along with support for the Fomu FPGA board.

Signed-off-by: Sean Cross <sean@xobs.io>
 2020-03-31 09:40:38 +08:00