From c2a1b719be908673377454d5634a8d2e19bdbabf Mon Sep 17 00:00:00 2001
From: David Sidrane <david_s5@nscdg.com>
Date: Thu, 23 Mar 2017 11:33:32 -1000
Subject: [PATCH] stm32_flash:Need conditinal on non F4 targets

---
 arch/arm/src/stm32/stm32_flash.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/src/stm32/stm32_flash.c b/arch/arm/src/stm32/stm32_flash.c
index 8ba48a82623..3b4ebd8a100 100644
--- a/arch/arm/src/stm32/stm32_flash.c
+++ b/arch/arm/src/stm32/stm32_flash.c
@@ -128,6 +128,7 @@ static void flash_lock(void)
   modifyreg32(STM32_FLASH_CR, 0, FLASH_CR_LOCK);
 }
 
+#if defined(CONFIG_STM32_FLASH_WORKAROUND_DATA_CACHE_CORRUPTION_ON_RWW)
 static void data_cache_disable(void)
 {
   modifyreg32(STM32_FLASH_ACR, FLASH_ACR_DCEN, 0);
@@ -143,6 +144,7 @@ static void data_cache_enable(void)
 
   modifyreg32(STM32_FLASH_ACR, 0, FLASH_ACR_DCEN);
 }
+#endif
 
 /************************************************************************************
  * Public Functions