From 33f151a43b39de4207bcdc49ea1e9e8dd8a5d248 Mon Sep 17 00:00:00 2001
From: HiFiPhile <admin@hifiphile.com>
Date: Wed, 27 May 2026 20:44:04 +0200
Subject: bsp/stm32f4: enable flash cache

Signed-off-by: HiFiPhile <admin@hifiphile.com>
---
 hw/bsp/stm32f4/family.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/hw/bsp/stm32f4/family.c b/hw/bsp/stm32f4/family.c
index 4eea5c7a8..3a323e673 100644
--- a/hw/bsp/stm32f4/family.c
+++ b/hw/bsp/stm32f4/family.c
@@ -109,6 +109,11 @@ void USARTn_IRQHandler(void) {
 
 void board_init(void) {
   board_clock_init();
+
+  __HAL_FLASH_INSTRUCTION_CACHE_ENABLE();
+  __HAL_FLASH_DATA_CACHE_ENABLE();
+  __HAL_FLASH_PREFETCH_BUFFER_ENABLE();
+
   //SystemCoreClockUpdate();
 
   // Enable All GPIOs clocks
-- 
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