From: Sebastien Bourdeauducq <sebastien@milkymist.org>
Date: Mon, 12 Dec 2011 23:25:46 +0000 (+0100)
Subject: wishbone2csr: fix double-write bug
X-Git-Tag: 24jan2021_ls180~2099^2~1140
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=0ea7a9b2e695571cabdf87b16c63d4e7bf6cac7c;p=litex.git

wishbone2csr: fix double-write bug
---

diff --git a/migen/bus/wishbone2csr.py b/migen/bus/wishbone2csr.py
index 9c0a4c24..b6d72ed5 100644
--- a/migen/bus/wishbone2csr.py
+++ b/migen/bus/wishbone2csr.py
@@ -8,11 +8,12 @@ class Inst():
 		self.wishbone = wishbone.Slave("to_csr")
 		self.csr = csr.Master("from_wishbone")
 		self.timeline = timeline.Inst(self.wishbone.cyc_i & self.wishbone.stb_i,
-			[(2, [f.Assign(self.wishbone.ack_o, 1)])])
+			[(1, [f.Assign(self.csr.we_o, self.wishbone.we_i)]),
+			(2, [f.Assign(self.wishbone.ack_o, 1)])])
 	
 	def GetFragment(self):
 		sync = [
-			f.Assign(self.csr.we_o, self.wishbone.we_i),
+			f.Assign(self.csr.we_o, 0),
 			f.Assign(self.csr.d_o, self.wishbone.dat_i),
 			f.Assign(self.csr.a_o, self.wishbone.adr_i[2:16]),
 			f.Assign(self.wishbone.ack_o, 0),