From: Florent Kermarrec <florent@enjoy-digital.fr>
Date: Wed, 14 Aug 2019 05:35:45 +0000 (+0200)
Subject: cores/spi_flash/S7SPIFlash: make cs_n optional in pads (when driven externally)
X-Git-Tag: 24jan2021_ls180~1051
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6d5fddc160ac5778eefe1216f78dc3aa6d526f93;p=litex.git

cores/spi_flash/S7SPIFlash: make cs_n optional in pads (when driven externally)
---

diff --git a/litex/soc/cores/spi_flash.py b/litex/soc/cores/spi_flash.py
index b00e6fc6..d2b8fd5c 100644
--- a/litex/soc/cores/spi_flash.py
+++ b/litex/soc/cores/spi_flash.py
@@ -337,9 +337,9 @@ class S7SPIFlash(Module, AutoCSR):
             pads.vpp.reset = 1
         if hasattr(pads, "hold"):
             pads.hold.reset = 1
-
+        if hasattr(pads, "cs_n"):
+            self.comb += pads.cs_n.eq(spi.pads.cs_n)
         self.comb += [
-            pads.cs_n.eq(spi.pads.cs_n),
             pads.mosi.eq(spi.pads.mosi),
             spi.pads.miso.eq(pads.miso)
         ]