Adds a BUILD_SEED make variable that can be set to a 32-bit integer,
and adds an FPGA read-only register initialized by this variable.
Changing this variable will randomly affect the FPGA build results.
This can be useful when your build fails timing by a small amount,
allowing you to build again and get different results with the same
code.
For example, you could run the following to produce an FPGA build with
different timing results from the default build:
make X310_XG BUILD_SEED=123
Original-commit: 3a3a03486f9221c2e59fa6d0826c23d17730956d
Include a register that contains SPI controller information.
Currently, it only provides the number of slaves addressable
by the SPI engine.
Original-commit: 1d7d1226e7576bfad484109afd3aad4e78af111b
White Rabbit is not supported in X410, however the register map included an
incorrect reference to this unsupported feature.
This commit removes the WR reference from both the source and html files.
Original-commit: 7edd92dbcf2da1a1c0fabe02a97fdb6afdc89077
Wade Fife