[gta02-core] debug connector

[Werner Almesberger]

Dave Ball wrote:
> With the changes for gta02-core, is it worth us reviewing what signals 
> to pass out the debug connector?

I would keep it the same in gta02-core. We have test points for
anything interesting anyway, and its future role is more than
uncertain, with IDBG offering a cleaner solution.

> Accelerometer SPI instead (which iirc can work in spi multi-node mode)

The accelerometer is a tricky device. Its "chip select" doesn't
select chips but protocols. So if you multiplex things, surprises
may happen.

- Werner