From 71c0b97bced7722abaa0adefd57066cc065538b5 Mon Sep 17 00:00:00 2001
From: Joy Lee <chang.li@westberrytech.com>
Date: Sat, 12 Feb 2022 04:26:16 +0800
Subject: Added external spi flash driver. (#15419)

---
 builddefs/common_features.mk | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'builddefs/common_features.mk')

diff --git a/builddefs/common_features.mk b/builddefs/common_features.mk
index db9b580286..08d186d656 100644
--- a/builddefs/common_features.mk
+++ b/builddefs/common_features.mk
@@ -219,6 +219,21 @@ else
   endif
 endif
 
+VALID_FLASH_DRIVER_TYPES := spi
+FLASH_DRIVER ?= no
+ifneq ($(strip $(FLASH_DRIVER)), no)
+    ifeq ($(filter $(FLASH_DRIVER),$(VALID_FLASH_DRIVER_TYPES)),)
+        $(error FLASH_DRIVER="$(FLASH_DRIVER)" is not a valid FLASH driver)
+    else
+        OPT_DEFS += -DFLASH_ENABLE
+        ifeq ($(strip $(FLASH_DRIVER)), spi)
+            OPT_DEFS += -DFLASH_DRIVER -DFLASH_SPI
+            COMMON_VPATH += $(DRIVER_PATH)/flash
+            SRC += flash_spi.c
+        endif
+    endif
+endif
+
 RGBLIGHT_ENABLE ?= no
 VALID_RGBLIGHT_TYPES := WS2812 APA102 custom
 
-- 
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