From 2bface8f893f3f13ddb9a3e10c0f362819d09c5c Mon Sep 17 00:00:00 2001
From: Stefan Kerkmann <karlk90@pm.me>
Date: Mon, 7 Mar 2022 17:59:06 +0100
Subject: Add flash target for UF2 bootloaders (#16525)

---
 platforms/chibios/flash.mk | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'platforms')

diff --git a/platforms/chibios/flash.mk b/platforms/chibios/flash.mk
index 6ee53172d2..a91ef2cf35 100644
--- a/platforms/chibios/flash.mk
+++ b/platforms/chibios/flash.mk
@@ -40,6 +40,18 @@ endef
 dfu-util: $(BUILD_DIR)/$(TARGET).bin cpfirmware sizeafter
 	$(call EXEC_DFU_UTIL)
 
+define EXEC_UF2_UTIL_DEPLOY
+	if ! $(UF2CONV) --deploy $(BUILD_DIR)/$(TARGET).uf2 2>/dev/null; then \
+		printf "$(MSG_BOOTLOADER_NOT_FOUND_QUICK_RETRY)" ;\
+		sleep $(BOOTLOADER_RETRY_TIME) ;\
+		while ! $(UF2CONV) --deploy $(BUILD_DIR)/$(TARGET).uf2  2>/dev/null; do \
+			printf "." ;\
+			sleep $(BOOTLOADER_RETRY_TIME) ;\
+		done ;\
+		printf "\n" ;\
+	fi
+endef
+
 # TODO: Remove once ARM has a way to configure EECONFIG_HANDEDNESS
 #       within the emulated eeprom via dfu-util or another tool
 ifneq (,$(filter $(MAKECMDGOALS),dfu-util-split-left))
@@ -90,6 +102,8 @@ ifneq ($(strip $(PROGRAM_CMD)),)
 	$(UNSYNC_OUTPUT_CMD) && $(PROGRAM_CMD)
 else ifeq ($(strip $(BOOTLOADER)),kiibohd)
 	$(UNSYNC_OUTPUT_CMD) && $(call EXEC_DFU_UTIL)
+else ifeq ($(strip $(BOOTLOADER)),tinyuf2)
+	$(UNSYNC_OUTPUT_CMD) && $(call EXEC_UF2_UTIL_DEPLOY)
 else ifeq ($(strip $(MCU_FAMILY)),KINETIS)
 	$(UNSYNC_OUTPUT_CMD) && $(call EXEC_TEENSY)
 else ifeq ($(strip $(MCU_FAMILY)),MIMXRT1062)
-- 
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