gateware/e1-tracer: Initial import

This is the project specific to the e1-tracer board that was
initially based on the iCEpick with a couple dev boards attached
but eventually consolidated to a proper board, which still retaining
100% electrical compatibility (and thus same gateware and firmware)

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
diff --git a/gateware/e1-tracer/data/clocks.py b/gateware/e1-tracer/data/clocks.py
new file mode 100644
index 0000000..c39f9b2
--- /dev/null
+++ b/gateware/e1-tracer/data/clocks.py
@@ -0,0 +1,2 @@
+ctx.addClock("clk_sys", 24)
+ctx.addClock("clk_48m", 48)