We initially wanted to provide different level of support for the platforms/targets, mainly
to avoid too much maintenance and let each contributor update its contributed platforms and
targets, but it's easier to update all platforms/targets all-together when LiteX evolves or
changes (and that's what has been done on litex-boards since the creation of the repository).
So let just simplify things and avoid this differentiation.
Things weren't quite right for adding a CPU. This fixes that by
correcting the placer arguments, memory map, and USB type.
Signed-off-by: Sean Cross <sean@xobs.io>
The heap placer is important enough that we should just make it the
default.
Also, add a `USBSoC` that includes the required interrupt table, as this
must be specified prior to calling `__init__()`.
Signed-off-by: Sean Cross <sean@xobs.io>
This adds the Fomu target back in. The default BaseSoC supports
various USB methods, and will be updated as more become available.
The debug bridge may optionally be added.
Signed-off-by: Sean Cross <sean@xobs.io>
The `fomu` target represents a generic target that supports the Fomu
48 MHz crystal, with or without a PLL.
It does not yet include a BaseSoC, since that requires USB and
up5kspram, neither of which are present yet.
Signed-off-by: Sean Cross <sean@xobs.io>
