From c120f6d457e267c085ae8f5a2712cc040073af42 Mon Sep 17 00:00:00 2001
From: Florent Kermarrec <florent@enjoy-digital.fr>
Date: Thu, 12 Sep 2019 17:07:56 +0200
Subject: [PATCH] build/openocd: add set_qe parameter to flash

QE bit is not set on blank SPI flashes and need to be set when SPI X4 is enabled in the bistream to load the FPGA.
---
 litex/build/openocd.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/litex/build/openocd.py b/litex/build/openocd.py
index 04b5a7f04..c149ca2cc 100644
--- a/litex/build/openocd.py
+++ b/litex/build/openocd.py
@@ -24,11 +24,12 @@ class OpenOCD(GenericProgrammer):
         ])
         subprocess.call(["openocd", "-f", self.config, "-c", script])
 
-    def flash(self, address, data):
+    def flash(self, address, data, set_qe=False):
         flash_proxy = self.find_flash_proxy()
         script = "; ".join([
             "init",
             "jtagspi_init 0 {{{}}}".format(flash_proxy),
+            "jtagspi set_qe 0 1" if set_qe else "",
             "jtagspi_program {{{}}} 0x{:x}".format(data, address),
             "fpga_program",
             "exit"