I have just uploaded the first version of LEON-2 to www.gaisler.com.
The modifications compared to leon1-2.4.0 are:


* Addition of on-chip debug support (dsu, dsu_mem, dcom, dcom_uart)
* Addition of data cache snooping for Virtex and ATC25 targets
* Modification of AHB arbiter bus arbitration
* Fixed problem with multiple break detection in UART (uart.vhd)
* Reading the baudrate register in UART returned scaler (uart.vhd)
* Various area/speed optimisations (iu, dcache)
* Added one BRDYN-controlled ram chip select
* Various documentation fixes

The new debug support unit provides a completely non-intrusive
debug environment on real target hardware, similar to what is
availble with TSIM. A debug monitor (DSUMON) to control the DSU
is available as has in fact a similar interface as TSIM. DSUMON
can also work as a gdb gateway, allowing full source-level debugging
with gdb. Note that with the DSU, a boot-prom is not longer needed
since the debug mode can be entered directly at reset and DSUMON
will auto-probe the system and configure the memory controller,
uarts and timers.

Feed-back and (potential) bug reports are welcome!

Jiri.

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