From 8fd736a2a51c944e3412c1f4902e471dfd6df01b Mon Sep 17 00:00:00 2001
From: dragonmux <git@dragonmux.network>
Date: Thu, 9 Feb 2023 11:09:47 +0000
Subject: [PATCH] riscv32: Implemented probing for the GD32VF1

---
 src/target/jep106.h  |  5 +++++
 src/target/riscv32.c | 13 +++++++++++++
 2 files changed, 18 insertions(+)

diff --git a/src/target/jep106.h b/src/target/jep106.h
index 83317b9f9dd..bc410a982ec 100644
--- a/src/target/jep106.h
+++ b/src/target/jep106.h
@@ -68,6 +68,11 @@
 #define JEP106_MANUFACTURER_RASPBERRY    0x913U /* Raspberry Pi */
 #define JEP106_MANUFACTURER_RENESAS      0x423U /* Renesas */
 #define JEP106_MANUFACTURER_XILINX       0x309U /* Xilinx */
+/*
+ * This JEP code should belong to "Andes Technology Corporation", but is used on RISC-V by GigaDevice,
+ * so in the unlikely event we need to support chips by them, here be dragons.
+ */
+#define JEP106_MANUFACTURER_RV_GIGADEVICE 0x61eU
 
 /*
  * This code is not listed in the JEP106 standard, but is used by some stm32f1 clones
diff --git a/src/target/riscv32.c b/src/target/riscv32.c
index b044a6c6e2c..5f2ce004ed4 100644
--- a/src/target/riscv32.c
+++ b/src/target/riscv32.c
@@ -35,7 +35,9 @@
 #include "target.h"
 #include "target_internal.h"
 #include "target_probe.h"
+#include "jep106.h"
 #include "riscv_debug.h"
+#include "gdb_packet.h"
 
 typedef struct riscv32_regs {
 	uint32_t gprs[32];
@@ -91,6 +93,17 @@ bool riscv32_probe(target_s *const target)
 	target->breakwatch_set = riscv32_breakwatch_set;
 	target->breakwatch_clear = riscv32_breakwatch_clear;
 
+	switch (target->designer_code) {
+	case JEP106_MANUFACTURER_RV_GIGADEVICE:
+		PROBE(gd32vf1_probe);
+		break;
+	}
+
+#if PC_HOSTED == 0
+	gdb_outf("Please report unknown device with Designer 0x%x\n", target->designer_code);
+#else
+	DEBUG_WARN("Please report unknown device with Designer 0x%x\n", target->designer_code);
+#endif
 	return false;
 }