From bd917d51efb574aa64ea5ec12ea89d60b7e0c5e8 Mon Sep 17 00:00:00 2001
From: Gwenhael Goavec-Merou <gwenhael.goavec-merou@trabucayre.com>
Date: Sun, 10 Dec 2023 08:14:06 +0100
Subject: [PATCH] gowin: try second eraseSRAM before writeSRAM. Not always
 working but better...

---
 src/gowin.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/gowin.cpp b/src/gowin.cpp
index 1e5f52a..81d603a 100644
--- a/src/gowin.cpp
+++ b/src/gowin.cpp
@@ -353,6 +353,13 @@ void Gowin::programSRAM()
 	if (!eraseSRAM())
 		return;
 
+	/* GW5AST-138k WA. Temporary until found correct solution/sequence */
+	if (is_gw5a && _idcode == 0x0001081b) {
+		printf("double eraseSRAM\n");
+		if (!eraseSRAM())
+			return;
+	}
+
 	/* load bitstream in SRAM */
 	if (!writeSRAM(_fs->getData(), _fs->getLength()))
 		return;