Hi,
Generally, Cortex-R devices are somewhat niche, so we are not planning to support them directly unless we see more traction. As a workaround, you can always create a project manually as shown in this tutorial.
We have also developed a tool for converting the projects generated by TI’s HalCoGen into VisualGDB BSPs. However, it was created as a part of a custom paid BSP requested by one of our customers, so we cannot guarantee that it will work with all device families. It could be a good starting point, but it may require some tweaking before you get a fully usable BSP out of it.