soc: arm: stm32f2: enable ART flash cache accelerator

This commit enables Instruction cache and Data cache.

Signed-off-by: Krishna Mohan Dani <krishnamohan.d@hcl.com>

soc/arm/st_stm32/stm32f2/soc.c

@@ -15,6 +15,7 @@
 #include <soc.h>
 #include <arch/cpu.h>
 #include <arch/arm/aarch32/cortex_m/cmsis.h>
+#include <stm32_ll_system.h>
 #include <linker/linker-defs.h>
 #include <string.h>
 
@@ -32,6 +33,10 @@ static int stm32f2_init(const struct device *arg)
 
 	ARG_UNUSED(arg);
 
+	/* Enable ART Flash cache accelerator for both Instruction and Data */
+	LL_FLASH_EnableInstCache();
+	LL_FLASH_EnableDataCache();
+
 	key = irq_lock();
 
 	/* Install default handler that simply resets the CPU