From 6d54335839545ebf92ff6df8190a06752dd2cde5 Mon Sep 17 00:00:00 2001
From: Florent Kermarrec <florent@enjoy-digital.fr>
Date: Mon, 22 Jul 2019 21:55:07 +0200
Subject: [PATCH] cores/spi_flash/add_clk_primitive: return if clk primitive is
 not needed

---
 litex/soc/cores/spi_flash.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/litex/soc/cores/spi_flash.py b/litex/soc/cores/spi_flash.py
index 2e40caa8..b00e6fc6 100644
--- a/litex/soc/cores/spi_flash.py
+++ b/litex/soc/cores/spi_flash.py
@@ -46,7 +46,8 @@ class SpiFlashCommon(Module):
         self.pads = pads
 
     def add_clk_primitive(self, device):
-        assert hasattr(self, "clk_primitive_needed")
+        if not hasattr(self, "clk_primitive_needed"):
+            return
         # Xilinx 7-series
         if device[:3] == "xc7":
             self.specials += Instance("STARTUPE2",
-- 
2.30.2