This config is only lightly tested, and doesn't work well yet;
but it's a start.
* Notably missing is PLL configuration, since each DaVinci
does that just a bit differently; and thus DDR2 setup.
* The SRST workaround needed for the goof in the CPLD's VHDL
depends on at least the not-yet-merged patch letting ARM9
(and ARM7) chips perform resets that don't use SRST.
So this isn't yet suitable for debugging U-Boot.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>