Wishbone: omit fixed LSBs

migen/bus/wishbone.py

@@ -4,7 +4,7 @@ from migen.corelogic.misc import multimux, optree
 from migen.bus.simple import Simple, get_sig_name
 
 _desc = [
-	(True,	"adr",	32),
+	(True,	"adr",	30),
 	(True,	"dat",	32),
 	(False,	"dat",	32),
 	(True,	"sel",	4),

migen/bus/wishbone2csr.py

@@ -16,7 +16,7 @@ class Inst():
 		sync = [
 			self.csr.we_o.eq(0),
 			self.csr.d_o.eq(self.wishbone.dat_i),
-			self.csr.a_o.eq(self.wishbone.adr_i[2:16]),
+			self.csr.a_o.eq(self.wishbone.adr_i[:14]),
 			self.wishbone.dat_o.eq(self.csr.d_i)
 		]
 		return Fragment(sync=sync) + self.timeline.get_fragment()